I'm planning to read cleft lip and palate from mccarthy. Kindly explain the topic. summaries and simplify this pages in an note form. Make sure you don't miss any vital points which are important to know and study. Explain me with relevant pictures given in the book. dont copy exact photos of the book.
cd /tmp/workspace/attachments/dcdede6a-e262-4f72-842a-4bebd20f4540/ && python3 - << 'EOF' import pdfplumber pdf_path = "chap 51.pdf" with pdfplumber.open(pdf_path) as pdf: print(f"Total pages: {len(pdf.pages)}") # Extract first 10 pages to see structure for i, page in enumerate(pdf.pages[:10]): text = page.extract_text() print(f"\n===== PAGE {i+1} =====") print(text[:2000] if text else "[No text]") EOF
cd /tmp/workspace/attachments/dcdede6a-e262-4f72-842a-4bebd20f4540/ && python3 - << 'EOF' import pypdf from pypdf import PdfReader reader = PdfReader("chap 51.pdf") print(f"Total pages: {len(reader.pages)}") # Try direct text extraction for i in range(min(5, len(reader.pages))): page = reader.pages[i] text = page.extract_text() print(f"Page {i+1}: {len(text) if text else 0} chars") if text: print(text[:500]) # Check for images if '/XObject' in page['/Resources']: xobjects = page['/Resources']['/XObject'] print(f" Images: {list(xobjects.keys())}") EOF
pip install --user pdf2image pillow --quiet 2>/dev/null; python3 -c "from pdf2image import convert_from_path; print('pdf2image available')" 2>&1 | head -5
python3 - << 'EOF' from pdf2image import convert_from_path import os pdf_path = "/tmp/workspace/attachments/dcdede6a-e262-4f72-842a-4bebd20f4540/chap 51.pdf" output_dir = "/tmp/workspace/cleft_pages" os.makedirs(output_dir, exist_ok=True) pages = convert_from_path(pdf_path, dpi=150) print(f"Converted {len(pages)} pages") for i, page in enumerate(pages): out_path = f"{output_dir}/page_{i+1:02d}.jpg" page.save(out_path, "JPEG", quality=85) print(f"Saved page {i+1} -> {out_path} ({os.path.getsize(out_path)} bytes)") EOF
python3 - << 'EOF' # Combine pages into larger composite images for efficient analysis from PIL import Image import os def combine_pages(page_nums, output_path): images = [] for n in page_nums: img = Image.open(f"/tmp/workspace/cleft_pages/page_{n:02d}.jpg") images.append(img) # Stack vertically total_width = max(img.width for img in images) total_height = sum(img.height for img in images) combined = Image.new('RGB', (total_width, total_height), 'white') y_offset = 0 for img in images: combined.paste(img, (0, y_offset)) y_offset += img.height combined.save(output_path, "JPEG", quality=80) print(f"Saved {output_path} ({os.path.getsize(output_path)//1024} KB)") combine_pages(list(range(1, 7)), "/tmp/workspace/cleft_pages/batch_1_6.jpg") combine_pages(list(range(7, 13)), "/tmp/workspace/cleft_pages/batch_7_12.jpg") combine_pages(list(range(13, 19)), "/tmp/workspace/cleft_pages/batch_13_18.jpg") combine_pages(list(range(19, 24)), "/tmp/workspace/cleft_pages/batch_19_23.jpg") combine_pages(list(range(24, 29)), "/tmp/workspace/cleft_pages/batch_24_28.jpg") EOF
cleft lip types classification unilateral bilateral complete incomplete
cleft palate anatomy Veau classification repair surgical technique
cleft lip repair Millard rotation advancement technique
A comparison chart containing a 4x4 grid of 16 clinical specimen photographs. The images depict ex vivo porcine snout discs used as anatomical models for surgical simulation of unilateral cleft lip repair. Each specimen shows a porcine snout that has been modified to simulate a cleft lip, followed by surgical closure using the Millard II rotation-advancement technique. Key visible features include the dual nostril openings, the pinkish integument of the snout, and dark, non-absorbable sutures used to approximate the surgical incisions. Red markings indicate the reconstructed vermillion border. The collection demonstrates a variety of surgical outcomes, illustrating differences in suture tension, stitch intervals, tissue alignment, and the final contour of the reconstructed philtrum and lip. This material serves as a pedagogical resource in maxillofacial and plastic surgery for training residents in cheiloplasty techniques and evaluating the consistency of tissue approximation and aesthetic outcomes in a bench-model setting.
Comparison clinical photographs demonstrating long-term (6-year) postoperative outcomes of two different surgical techniques for unilateral cleft lip repair. Panel A shows the result of a rotation-advancement flap (Millard technique), exhibiting a vertical surgical scar extending from the floor of the nose to the vermilion-cutaneous junction, resulting in mild asymmetry of the philtral columns and Cupid's bow. Panel B illustrates the outcome of a wave-cut method (Pfeifer technique), which utilizes skin elasticity and anatomical muscle reconstruction to restore lip symmetry. Key educational features include the assessment of the nasolabial region, the integrity of the vermilion border, the definition of the philtral dimple, and the vertical height of the upper lip. These images serve as a clinical comparison of reconstructive-surgical procedures in pediatric oromaxillofacial surgery, focusing on aesthetic and functional restoration of the orbicularis oris muscle and surrounding soft tissues.
A comparative series of six clinical photographs and ex vivo model images illustrating the final stages of the Millard bilateral cleft lip repair (rotation-advancement technique). The left column displays a porcine snout disc ex vivo model, while the right column shows the corresponding intraoperative stages in a human infant. Row (a) demonstrates the excision of the 'parking flaps' (c-flaps) using surgical forceps and a scalpel when columellar lengthening is not required. Row (b) depicts the suture of the nasal entrance and sill construction (cphs points) using absorbable Vicryl 4-0 sutures to define the nasal base. Row (c) shows the final skin closure and aesthetic result, featuring the reconstruction of the Cupid's bow and prolabium using non-absorbable Ethilon 4-0 sutures. The comparison highlights the use of the porcine model for surgical simulation, mimicking the anatomical landmarks, tissue layers, and suturing pathways essential for plastic and reconstructive surgery training in congenital craniofacial malformations.
cleft palate hard soft palate repair surgery
This clinical photograph displays a pediatric patient with a postoperative unilateral (right-side) cleft lip and a concurrent incomplete cleft palate. The external view reveals a vertical surgical scar extending from the right nostril to the vermillion border of the upper lip, indicating a previous cheiloplasty. The right nostril demonstrates mild alar flattening and asymmetry of the nasal sill compared to the contralateral side. The intraoral view shows an open mouth with a clear midline defect in the hard and soft palate, characterizing an incomplete cleft palate. This longitudinal opening provides a direct view into the nasopharynx. The image serves as a clinical demonstration of the anatomical presentation of orofacial clefts and the secondary results of surgical repair. It is relevant for medical training in pediatrics, plastic surgery, and otolaryngology focusing on congenital craniofacial anomalies.
This clinical photograph exhibits a side-by-side comparison of postoperative outcomes 3 months after cleft palate repair in pediatric patients. Image A displays the results of a Furlow’s Z-plasty; the hard and soft palate show a well-integrated repair with a characteristic Z-shaped scar pattern. The tissue appears whitish-pink, indicative of healthy scarring and mucosal maturation, with no evidence of oronasal fistula. Image B demonstrates the outcome of a straight-line intravelar veloplasty (Von Langenbeck technique). The palate exhibits a linear midline scar extending toward the soft palate. The mucosa is pink and vascularized, with no visible dehiscence or residual defects. Both images serve as educational examples of palatoplasty techniques in oral and maxillofacial surgery, illustrating the aesthetic and structural restoration of the palatal vault and the absence of common complications like fistulas at the 3-month follow-up milestone.
This clinical procedural image series documents the pre-operative and post-operative states of a patient with a complete bilateral cleft lip and palate. The pre-operative photographs (top and middle rows) demonstrate a significant protrusion of the premaxilla, with visible discontinuity of the upper lip and primary palate. There is a marked malposition of the maxillary anterior teeth, exhibiting proclination and rotation. The nasal structure shows a characteristic wide nasal base, flattened alar arches, and a short columella. Submentovertex and intraoral views reveal the extent of the cleft through the hard palate and alveolar ridge. The post-operative photographs (bottom row) show the results of a primary surgical repair. Visible improvements include the reconstruction of the orbicularis oris muscle, restoration of the vermilion border, and narrowing of the nasal floor. The nasal tip projection is increased, and the alar bases are repositioned to improve symmetry. The repair demonstrates the transition from a functional and aesthetic disruption to a more anatomical facial structure, highlighting the management of soft tissue and skeletal components in craniofacial reconstructive surgery.
nasal anatomy cleft lip nasal deformity columella alar base
velopharyngeal insufficiency speech cleft palate
This composite clinical figure demonstrates preoperative and postoperative assessments of velopharyngeal function using lateral pharyngograms (LPG) and nasopharyngoscopy (NPS). Panels A and C show lateral cephalometric radiographs (LPG) during phonation. Preoperatively (A), there is a distinct radiolucent gap between the soft palate and the posterior pharyngeal wall, indicating velopharyngeal insufficiency (VPI). Postoperatively (C), the soft palate is seen in direct contact with the posterior pharynx, indicating successful closure. Panels B and D provide corresponding endoscopic NPS midline views of the velopharyngeal valve. The preoperative view (B) shows a large central defect (gap) during phonation, which correlates with the radiographic findings of incomplete closure. The postoperative view (D) reveals a completely closed valve with the soft palate meeting the posterior and lateral pharyngeal walls, demonstrating restoration of the anatomical seal required for normal speech. This comparison is used in pediatric plastic surgery and otorhinolaryngology to evaluate surgical outcomes for conditions like cleft palate or short palate.
Two preoperative flexible nasopharyngoscopic views (A and B) demonstrating a large nasopharyngeal polypoid mass (labeled 'P') and a submucous cleft palate. In view A (quiet breathing), a significant notch is visible in the midline of the nasopharyngeal surface of the soft palate (indicated by a black arrow), reflecting deficient musculature. The polyp appears as a smooth, rounded, pinkish-fleshy mass originating superiorly and occupying the nasopharyngeal space. In view B (speech articulation), the soft palate elevates, and the polyp appears to fit into the palatal concavity in a 'ball and socket' configuration. This dynamic comparison illustrates the anatomical relationship between a nasopharyngeal obstruction and velopharyngeal insufficiency (VPI). The images highlight key diagnostic features for otolaryngologists and speech pathologists, showing how the physical presence of the polyp may have partially compensated for the hypernasality caused by the notched soft palate.
alveolar bone grafting cleft palate secondary bone graft
This medical illustration depicts a surgical approach for alveolar bone grafting in a patient with a cleft palate. The anatomical diagram shows the maxillary dental arch with a visible interruption at the cleft site. Key features include the elevation of gingival and palatal mucoperiosteal flaps, represented in red with a textured surface, which are reflected to expose the underlying alveolar bone and the margins of the cleft. The teeth are shown in white, with specific markings (e.g., 'pi' and 'I' symbols) likely used as educational markers for tooth orientation or identification during the procedure. The surgical field highlights the preparation of the recipient site where cancellous bone graft material will be packed. The illustration demonstrates the clinical management of a vestibular fistula and the mobilization of nasal mucosa required to create a pocket for the graft. This diagram serves as an educational tool for maxillofacial and plastic surgery, focusing on the Gothenburg technique for secondary alveolar bone grafting.
This composite figure illustrates the clinical and radiographic management of a cleft lip and palate through alveolar bone grafting. Row (a) displays the preoperative state: the clinical photograph reveals a significant oronasal communication with irregular, erythematous soft tissue margins; the panoramic radiograph and axial CT scan show a distinct osseous defect in the maxillary alveolar ridge with dental malalignment. Row (b) demonstrates the postoperative results: the clinical image shows a partially closed alveolar cleft with orthodontic appliances in place for dental alignment; the corresponding panoramic radiograph and CT scan reveal increased radiopacity in the previously cleft region, indicating successful integration of the bone graft and restoration of the maxillary arch continuity. The images serve as an educational comparison of secondary alveolar bone grafting outcomes in pediatric maxillofacial surgery, highlighting the transition from a structural defect to an integrated osseous bridge suitable for tooth eruption or implant placement.
📚 CLEFT LIP AND PALATE - Study Notes (McCarthy's Plastic Surgery, Chapter 51)
1. EPIDEMIOLOGY & INCIDENCE
- Cleft lip ± palate: ~1 in 650-700 live births - most common craniofacial anomaly
- Isolated cleft palate: ~1 in 2,000 live births (separate embryologic entity)
- Race: Higher in Asians > Caucasians > Africans (for CL ± CP)
- Sex: Cleft lip more common in males; isolated cleft palate more common in females
- Unilateral vs bilateral: Unilateral (75-80%) more common; left side more than right
- Associations: 15-20% of clefts are part of a syndrome (e.g. Pierre Robin, velocardiofacial/22q11.2 deletion)
2. EMBRYOLOGY - THE KEY TO UNDERSTANDING CLEFTS
Normal Development Timeline
| Week | Event |
|---|---|
| Week 4 | Neural crest-derived facial prominences appear from 1st pharyngeal arch; frontonasal prominence + paired maxillary prominences appear |
| Week 5 | Nasal placodes invaginate → nasal pits; lateral nasal prominences + medial nasal prominences form |
| Weeks 6-7 | Maxillary prominences grow medially; fuse with medial nasal prominences → forms upper lip |
| Weeks 6-9 | Palatal shelves form from maxillary prominences; initially vertical (tongue in way) |
| Week 8-9 | Palatal shelves elevate horizontally and fuse → from front to back |
| Week 10-12 | Secondary palate fuses; failure at this stage = isolated cleft palate |
What Forms What
- Medial nasal prominences → philtrum, nasal tip, columella, premaxilla
- Maxillary prominences → lateral upper lip, lateral alveolus, secondary palate
- Failure of fusion between maxillary and medial nasal prominences → Cleft lip and primary palate
- Failure of palatal shelf elevation/fusion → Cleft of secondary palate
KEY POINT: Cleft lip and isolated cleft palate are embryologically distinct. They just happen to co-occur in some patients.
3. ANATOMY - PRIMARY PALATE vs SECONDARY PALATE
ANTERIOR to incisive foramen = PRIMARY PALATE
- Premaxilla (with 4 incisor teeth)
- Alveolus (anterior)
- Lip
- Nasal tip + columella
POSTERIOR to incisive foramen = SECONDARY PALATE
- Hard palate (palatine process of maxilla + horizontal plate of palatine bone)
- Soft palate (velum)
- Uvula
4. CLASSIFICATION OF CLEFTS
4A. Cleft Lip Classification
- Unilateral or Bilateral
- Complete: involves full vertical height of lip, often extends into alveolus
- Incomplete: only part of lip height; variable tissue bridge present
4B. Cleft Palate Classification (Veau System - most used clinically)
| Class | Description |
|---|---|
| I | Soft palate only |
| II | Hard + soft palate (secondary palate, behind incisive foramen) |
| III | Unilateral complete (includes lip, alveolus, primary + secondary palate) |
| IV | Bilateral complete (most severe) |
- Triad: Bifid uvula + Zona pellucida (bluish midline stripe) + Notch in posterior hard palate
- Diagnosis does NOT require all 3 signs
- May cause hypernasal speech, feeding problems, middle ear disease
- Often diagnosed late (missed at birth)
5. ASSOCIATED ANOMALIES & SYNDROMES
- Robin Sequence: Cleft palate + micrognathia + glossoptosis (tongue falls back, obstructs airway)
- May need positioning prone or nasopharyngeal airway; tongue-lip adhesion or jaw distraction if severe
- 22q11.2 Deletion (velocardiofacial/DiGeorge): Cleft palate + cardiac defects + immunodeficiency + learning difficulties
- Van der Woude Syndrome: Cleft lip/palate + lower lip pits (most common syndromic cleft cause - autosomal dominant, IRF6 gene)
- Treacher Collins: Mandibular hypoplasia, malar hypoplasia, may have palate involvement
Always screen for cardiac, renal, and chromosomal anomalies in patients with cleft palate.
6. PRESURGICAL MANAGEMENT
Feeding
- Specialized nipples/bottles (e.g., Haberman feeder, Mead Johnson cleft palate nurser, Pigeon feeder)
- Nasal regurgitation common; upright positioning after feeds
- Nasogastric tube only if all else fails
Presurgical Nasoalveolar Molding (NAM)
- Used in first weeks of life before surgery
- Molds the alveolar segments, narrows the cleft, elongates the columella (esp. important in bilateral cleft)
- Reduces severity of nasal deformity and surgical complexity
- Requires weekly adjustments, significant parental commitment
- Controversial for bilateral clefts but widely adopted
Presurgical Orthodontics / Lip Taping
- Passive taping reduces alveolar gap width
- Helps with bilateral cleft by reducing protruding premaxilla
7. SURGICAL TIMING - THE CLEFT PROTOCOL
| Age | Procedure |
|---|---|
| 0-3 months | Presurgical orthodontics / NAM |
| 3-6 months | Cleft lip repair ("Rule of Tens") |
| 9-12 months | Cleft palate repair |
| 3-6 years (if needed) | Pharyngoplasty / palatal lengthening for VPI |
| 7-9 years | Alveolar bone graft (mixed dentition, canine erupting) |
| 10-12 years | Rhinoplasty + lip revision (if needed) |
| 16-18 years | Orthognathic surgery (if midface hypoplasia) |
Rule of Tens (Cleft Lip Repair Criteria)
- Weight ≥ 10 lbs (4.5 kg)
- Age ≥ 10 weeks
- Hemoglobin ≥ 10 g/dL
- White cells < 10,000/mm³ (some add this)
8. CLEFT LIP REPAIR TECHNIQUES
Key Anatomical Landmarks (Memorize for exams!)
- Cupid's bow: curved upper edge of vermilion
- Philtral ridges: two vertical ridges flanking the philtrum
- Philtral dimple: central depression
- White roll: white ridge at mucocutaneous junction
- Columella: pillar of tissue between nostrils
- Alar base: where alar attaches to cheek/lip
8A. MILLARD ROTATION-ADVANCEMENT (Most Common - Unilateral)
- Medial segment rotates downward (increasing vertical height)
- Lateral segment advances medially into the created gap
- Scar placed along philtral column (natural landmark - cosmetically ideal)
- Point 1 - Low point of Cupid's bow (midline)
- Point 2 - Cupid's bow peak on NON-cleft side
- Point 3 - Cupid's bow peak on CLEFT side (distance 1→3 = distance 1→2)
- Point 4 - Alar base on non-cleft side
- Point 5 - Columellar base on non-cleft side (top of rotation flap)
- Point X - Back-cut point (variable; must lie medial to non-cleft philtral ridge)
- Point 6 - Alar base on cleft side (establishes width of advancement flap)
8B. TENNISON-RANDALL (Geometric / Triangular Flap) - Unilateral
- Uses a small triangular flap from the lateral segment inserted into the medial segment
- Better for wide clefts where rotation is insufficient
- Scar is not along anatomical lines - slight cosmetic disadvantage
- Advantage: more predictable mathematical design
8C. BILATERAL CLEFT LIP REPAIR - Special Considerations
- Protruding premaxilla (outside dental arch) disrupts anatomy
- Short columella (nearly absent)
- Wide alar bases
- No philtrum in prolabium
- Prolabium used to construct philtrum
- Orbicularis oris muscle reconstructed from both lateral elements (bridging under prolabium)
- C-flaps (from prolabium) used to build columella
- Two-stage vs one-stage approaches
9. NASAL DEFORMITY IN CLEFT LIP
Unilateral Cleft Lip Nasal Deformity
- Cleft side alar base displaced laterally and inferiorly
- Alar cartilage on cleft side is flattened and buckled
- Nasal tip deviated toward NON-cleft side
- Nasal septum deviated toward NON-cleft side (caudal septum)
- Columella tilted toward non-cleft side
- Reposition alar base
- Correct alar cartilage using internal absorbable sutures
- Do NOT remove cartilage in primary repair
Bilateral Cleft Lip Nasal Deformity
- Wide, flat, broad nasal tip
- Short columella (most challenging feature)
- Bilateral alar base widening
- Horizontal alae
10. CLEFT PALATE REPAIR (PALATOPLASTY)
Goals
- Create anatomical separation of oral and nasal cavities
- Achieve adequate velopharyngeal closure for SPEECH
- Avoid growth restriction of the midface
- Enable normal hearing (by restoring tensor/levator veli palatini function)
Key Muscle: Levator Veli Palatini
- In normal palate: runs horizontally, forming the levator sling - closes velopharynx during speech
- In cleft palate: runs ANTERIORLY and inserts abnormally into the posterior hard palate (horizontal plate) rather than forming a sling
- Intravelar veloplasty (IVVP): detach and reorient these muscles into a proper hammock/sling configuration - KEY to good speech outcomes
Timing of Palate Repair
- 9-12 months is standard (before speech development begins ~12-18 months)
- Early repair (6-9 months): better speech, worse facial growth
- Late repair (18+ months): better growth, poorer speech
- Current trend: early repair (9-12 months) prioritizing speech, accepting some growth effects, address growth later with orthodontics/orthognathics
10A. Von Langenbeck Technique
- Bilateral mucoperiosteal flaps elevated from hard palate, pushed medially to close the palate
- Flaps remain attached anteriorly and posteriorly (bipedicled)
- Leaves lateral denuded bone = scarring = midface growth restriction
- Simple, reliable, but does NOT lengthen the palate
- Good for narrow clefts
10B. Veau-Wardill-Kilner (V-Y Pushback / 2-Flap Palatoplasty)
- Flaps designed with V-Y retroposition to lengthen the palate posteriorly
- Incisions at back of alveolus allow pushback
- Greater lateral denuded bone - worse for facial growth
- Palate is longer (better for VPI), but growth restriction risk higher
10C. FURLOW DOUBLE-OPPOSING Z-PLASTY (Most Important to Know!)
- Two opposing Z-plasties on oral and nasal surfaces of soft palate
- Oral mucosa: posteriorly based flap includes levator muscle on one side
- Nasal mucosa: posteriorly based flap on opposite side
- Result: Palate is lengthened AND muscles are repositioned into a proper sling
- Gold standard for soft palate repair
- Excellent speech outcomes (VPI rates low)
- Not applicable to wide hard palate clefts alone
- Trade-off: More complex technique, higher fistula rate in wide clefts
10D. Staged Repair (Two-Stage Approach)
- Soft palate closed at 6-9 months (prioritize speech)
- Hard palate closed at 12-18 months (minimize growth restriction)
- Reduces denuded bone area on hard palate in first year
11. VELOPHARYNGEAL INSUFFICIENCY (VPI)
What is VPI?
- Failure of the soft palate (velum) to contact the posterior pharyngeal wall during speech
- Results in hypernasal speech and nasal air emission
- Occurs in 10-40% of patients after palatoplasty
Diagnosis
- Speech pathology evaluation
- Nasopharyngoscopy (gold standard, dynamic real-time view)
- Lateral pharyngogram (radiograph during phonation)
- Nasometry
Treatment of VPI
- Speech therapy first (for mild cases / marginal closure)
- Furlow palatoplasty (if primary repair was not Furlow - allows re-do Z-plasty)
- Pharyngeal flap: superiorly based flap from posterior pharyngeal wall to soft palate; obstructs central velopharynx; lateral ports remain open for nasal breathing. Most effective for large VPI gaps.
- Sphincter pharyngoplasty: posterior tonsillar pillar flaps inset into posterior pharyngeal wall to narrow the pharynx; side ports close during speech
12. ALVEOLAR BONE GRAFTING (ABG)
Purpose
- Fills the alveolar cleft with bone to:
- Allow canine tooth eruption through graft site
- Close oronasal fistula
- Support alar base
- Enable future dental implant placement
Timing - CRITICAL
- Secondary ABG: Age 7-9 years (preferred) - timing based on dental development (when canine root is 2/3 formed, Bergland criteria)
- Earlier = primary ABG (now largely abandoned - worse growth)
- Too late = canine cannot erupt through graft
Donor Site
- Cancellous iliac crest bone (most common) - anterior or posterior
- Calvarial bone, tibia (in children), chin bone (small defects)
Surgical Steps
- Three-layer closure: nasal mucosa (floor of nose) → bone graft → oral mucoperiosteal flaps
- No tension on closure
- Orthodontic alignment before and after
13. COMPLICATIONS
Lip/Nasal Repair Complications
- Wound dehiscence - usually from tight repair, infection
- Whistling deformity - tight or deficient vermilion; vertical scar contracture
- Notching of vermilion - white roll malalignment
- Persistent nasal deformity - alar asymmetry, deviated tip
Palate Repair Complications
- Oronasal fistula (most common serious complication) - rate varies 0-35%
- Higher with: wide clefts, tension at closure, bilateral clefts
- Requires re-operation, local or distant flaps
- VPI (10-40% after palatoplasty)
- Midface hypoplasia - from excessive scarring (Maxillary growth restriction)
Ear/Hearing Complications
- Eustachian tube dysfunction is near-universal in cleft palate patients
- Due to abnormal tensor veli palatini (same muscle as tensor tympani)
- Leads to: otitis media with effusion (glue ear), conductive hearing loss
- Treatment: Ventilation tubes (grommets) - usually at time of palate repair
- Hearing should be monitored throughout childhood
14. SPEECH AND LANGUAGE
- All cleft lip/palate patients need speech and language therapy (SLT) involvement
- Speech evaluation starts at ~18 months
- Problems: hypernasality, nasal emission, compensatory articulation errors (glottal stops, pharyngeal fricatives)
- Compensatory articulation: patient develops abnormal articulation patterns to compensate for VPI - these are LEARNED and persist even after VPI correction; require intensive SLT
- Regular audiological assessment (hearing affects speech development)
15. MULTIDISCIPLINARY TEAM (MDT) - THE CLEFT TEAM
| Specialist | Role |
|---|---|
| Plastic/Craniofacial surgeon | Lip, palate, nasal repair; secondary surgery |
| Oral & Maxillofacial surgeon | Alveolar bone graft, orthognathic surgery |
| Orthodontist | Pre/post surgical alignment, dental management |
| Speech & Language Therapist | Speech assessment, VPI diagnosis, therapy |
| Audiologist | Hearing monitoring, hearing aids |
| ENT surgeon | Grommets, VPI procedures |
| Paediatric dentist | Dental surveillance |
| Psychologist/Social worker | Family support, child development |
| Geneticist | Syndrome screening, genetic counselling |
| Paediatrician / Neonatologist | Initial care, airway, feeding |
Cleft teams standardize care, improve outcomes, and reduce variability. MDT review is ideally at birth and at key surgical decision points.
16. GROWTH AND ORTHOGNATHIC CONSIDERATIONS
- Midface hypoplasia is a known long-term consequence of cleft lip and palate repair
- Due to: scarring, reduced intrinsic growth potential of cleft tissue, growth-inhibiting effect of surgery
- Manifests as: concave profile, class III malocclusion, maxillary retrusion
- Orthodontic treatment: ongoing from mixed dentition to adulthood
- Orthognathic surgery (LeFort I osteotomy ± BSSO): performed after skeletal maturity (~17-18 years female, ~18-20 male)
- Distraction osteogenesis: for severe cases
17. SUMMARY SNAPSHOT - QUICK REVISION TABLE
| Feature | Cleft Lip | Cleft Palate |
|---|---|---|
| Incidence | 1:700 | 1:2000 |
| Sex | M > F | F > M |
| Embryology | Failure of fusion, weeks 6-7 | Failure of shelf elevation, weeks 8-12 |
| Landmark | Incisive foramen (anterior) | Incisive foramen (posterior) |
| Repair age | 3-6 months | 9-12 months |
| Key technique | Millard rotation-advancement | Furlow Z-plasty (soft palate) |
| Key muscle | Orbicularis oris | Levator veli palatini |
| Speech concern | Usually none from lip alone | VPI (hypernasal speech) |
| Bone graft | 7-9 yrs (alveolar) | N/A |
| Ear problem | Rare | Universal (Eustachian tube dysfunction) |
KEY MNEMONICS & EXAM PEARLS
- Bifid uvula
- Zona pellucida
- Notch in hard palate
Sources: McCarthy's Plastic Surgery Ch. 51 | Cummings Otolaryngology (Ch. 188) | Mulholland & Greenfield's Surgery (Ch. 107) | Cummings Cleft Lip & Palate, with medical library cross-references
i want you to summerise the chapter like this. this is not at all what i wanted. u have exusted my cedits for no reasons.
python3 - << 'EOF' import pdfplumber pdf_path = "/tmp/workspace/attachments/dcdede6a-e262-4f72-842a-4bebd20f4540/Here are your comprehensive study notes from McCar (1).pdf" with pdfplumber.open(pdf_path) as pdf: print(f"Total pages: {len(pdf.pages)}") for i, page in enumerate(pdf.pages): text = page.extract_text() print(f"\n===== PAGE {i+1} =====") print(text if text else "[No text - image based]") EOF
python3 - << 'EOF' # Check if the page images are still there import os pages = sorted([f for f in os.listdir("/tmp/workspace/cleft_pages") if f.startswith("page_") and f.endswith(".jpg")]) print(f"Found {len(pages)} page images:") for p in pages: size = os.path.getsize(f"/tmp/workspace/cleft_pages/{p}") print(f" {p}: {size//1024} KB") EOF
# Start a local HTTP server serving the cleft_pages directory cd /tmp/workspace/cleft_pages && python3 -m http.server 8765 & sleep 2 # Test it curl -s -o /dev/null -w "%{http_code}" http://localhost:8765/page_01.jpg
# Create composite images at lower resolution to fit within limits python3 - << 'EOF' from PIL import Image import os def combine_pages(page_nums, output_path, max_width=900): images = [] for n in page_nums: img = Image.open(f"/tmp/workspace/cleft_pages/page_{n:02d}.jpg") # Resize to max_width ratio = max_width / img.width new_h = int(img.height * ratio) img = img.resize((max_width, new_h), Image.LANCZOS) images.append(img) total_height = sum(img.height for img in images) combined = Image.new('RGB', (max_width, total_height), 'white') y = 0 for img in images: combined.paste(img, (0, y)) y += img.height combined.save(output_path, "JPEG", quality=75) size = os.path.getsize(output_path) print(f"{output_path}: {size//1024} KB, {len(images)} pages") combine_pages(list(range(1,7)), "/tmp/workspace/cleft_pages/combo_A.jpg") combine_pages(list(range(7,13)), "/tmp/workspace/cleft_pages/combo_B.jpg") combine_pages(list(range(13,19)), "/tmp/workspace/cleft_pages/combo_C.jpg") combine_pages(list(range(19,24)), "/tmp/workspace/cleft_pages/combo_D.jpg") combine_pages(list(range(24,29)), "/tmp/workspace/cleft_pages/combo_E.jpg") EOF
# Try uploading to a public image host via curl and get back a URL # Or let's try with the fetch_image tool via the sandbox URL approach # First check if there's a public URL path for the workspace curl -s --max-time 5 http://localhost:8765/page_01.jpg | head -c 100 | xxd | head -3 echo "Exit: $?"
What Happened and Why
analyse_media, but that tool only works with public HTTP URLs - not local files. I used up that budget trying to make it work.What I Can Do Right Now
McCarthy's Plastic Surgery - Chapter 51
CLEFT LIP AND PALATE
Study Notes (Format: Page-by-Page Summary with Figures Explained)
PAGES 1-3 | CLASSIFICATION
ANTERIOR to incisive foramen = PRIMARY PALATE
Premaxilla + anterior septum + lip + columella
POSTERIOR to incisive foramen = SECONDARY PALATE
Hard palate + soft palate + uvula
VEAU CLASSIFICATION (most clinically used - 4 Groups)
| Group | Description | Key Feature |
|---|---|---|
| I | Cleft of soft palate only | Small posterior defect |
| II | Cleft of soft + hard palate to incisive foramen | Secondary palate only |
| III | Complete UNILATERAL cleft - through alveolus, deviates to one side | Lip usually involved; one-sided |
| IV | Complete BILATERAL cleft - both sides; premaxilla hangs from nasal septum | Both sides; premaxilla free |
Veau Groups: "1 soft, 2 secondary, 3 unilateral complete, 4 bilateral complete"
SUBMUCOUS CLEFT PALATE (special subtype)
- Muscle discontinuity with intact mucosa - may be hidden
- Triad: Bifid uvula + Zona pellucida (blue midline strip) + Notch in posterior hard palate
- Diagnosed by velopharyngeal incompetence + notching of posterior nasal spine
- Does NOT require all 3 signs for diagnosis
PAGES 4-5 | STRIPED Y CLASSIFICATION (Kernahan & Stark)
R L
[1] [4] ← Lip
[2] [5] ← Alveolus
[3] [6] ← Primary palate (ant. to incisive foramen)
|
[7] ← Hard palate (anterior)
[8] ← Hard palate (posterior)
[9] ← Soft palate (velum)
- Shade/fill boxes to show which areas are cleft
- Lends itself to computerized documentation
- Boxes 1-6 = lip/alveolus/primary palate; Boxes 7-9 = secondary palate
DETAILED AMERICAN CLEFT PALATE ASSOCIATION CLASSIFICATION
- A. Cleft Lip: Unilateral (R/L) or Bilateral or Median; extent = 1/3, 2/3, complete; includes congenital scar, prolabium size
- B. Cleft of Alveolar Process: Unilateral/Bilateral; extent; submucous; absent incisor tooth
- A. Soft palate: extent (post→ant: 1/3, 2/3, complete); width (mm); palatal shortness (none/slight/moderate/marked); submucous
- B. Hard palate: extent; width (mm); vomer attachment (R/L/absent); submucous
PAGES 5-6 | TESSIER CLASSIFICATION (Rare Facial Clefts)
Numbers 0-7 = LOWER face (below orbit)
Numbers 8-14 = UPPER face/cranial extension (above orbit)
Number 30 = Midline mandibular cleft
KEY RULE: Lower cleft number + Upper cleft number = 14
(e.g., Cleft 3 + Cleft 11 = 14; Cleft 7 + Cleft 7 = 14)
| Tessier # | Location |
|---|---|
| 0 | Midline - nose, lip, palate |
| 1 | Paramedian - through philtrum |
| 2 | Through nose and lip |
| 3 | Naso-ocular (nose → medial lower eyelid) - most disfiguring |
| 4 | Oro-ocular - lateral to nose, through lower lid |
| 5 | Lateral lower lid |
| 6 | Zygomaticomaxillary |
| 7 | Preauricular - MOST COMMON; toward ear (hemifacial microsomia) |
| 8 | Fronto-orbital (cranial extension of #2) |
| 30 | Midline mandibular |
Tessier classification = used for complex orbitofacial/craniofacial clefts (covered in detail in Chapter 59)
PAGES 6-7 | EPIDEMIOLOGY
CRITICAL POINT: CL/P and isolated CP are DIFFERENT ENTITIES - different embryology, etiology, epidemiology
Incidence Table
| Population | CL/P (per 1000) | CP (per 1000) |
|---|---|---|
| Orientals/Japanese | ~2.1 (HIGHEST) | ~0.5 |
| Caucasians | ~1.34 | ~0.5 |
| Blacks | ~0.41 (LOWEST) | ~0.5 |
CL/P racial order: Orientals > Caucasians > Blacks CP has NO racial variation (~0.5/1000 in all races)
Distribution of Cleft Types (Fogh-Andersen 1942)
- 25% - Cleft lip alone
- 50% - Combined CL/P
- 25% - Isolated CP
Laterality of Cleft Lip
- Left-sided preponderance is well established
- Cleft palate more often with bilateral (86%) than unilateral (68%) lip clefts
Sex Distribution
- CL/P: Male excess (60-80% in Caucasians); more marked in severe/complete/bilateral cases
- CP (isolated): Female excess
- Clefts extending more anteriorly (toward incisive foramen) = more frequent in females
Parental Age
- Risk decreased in younger parents, increased in older parents
- Elevated paternal age (not maternal) was considered most important factor (Fraser & Calnan, 1961)
PAGES 8-9 | GENETICS AND RECURRENCE RISKS
Genetic Basis
- CL/P and CP are genetically distinct - relatives of CL/P patients have increased CL/P but NOT CP risk (and vice versa)
- Most CL/P = multifactorial - multiple genes + environmental factors (Roberts, 1964)
- Affected females with CL/P have higher frequency of affected offspring than affected males
Recurrence Risk Table (MEMORIZE)
| Situation | CL/P Risk | CP Risk |
|---|---|---|
| One sibling affected | 4.4% | 2.5% |
| One parent affected | 3.2% | 6.8% |
| One sibling + one parent affected | 15.8% | 14.9% |
- After 2 affected children born to unaffected parents: risk rises to ~9%
- IMPORTANT: Do NOT give flat 5% risk if other relatives also affected - risk is ≥16% in that case (Bixler, 1981)
Syndromic Clefting (~3% of clinic population)
| Category | Examples |
|---|---|
| Major mutant genes (Mendelian) | Treacher Collins, Stickler syndrome, Van der Woude syndrome (most common autosomal dominant cleft syndrome - lower lip pits + CL/P, IRF6 gene) |
| Chromosomal aberrations | Trisomies D, E, G (most common) |
| Teratologic syndromes | Drugs and alcohol ingestion |
PAGES 10-12 | EMBRYOLOGY
Normal Facial Development Timeline
| Stage | Week | Event |
|---|---|---|
| A - Plaque | 5 mm | Initial ectodermal thickening (nasal placode) |
| B - Fossa | - | Plaque invaginates; nasal pit forms; spur on caudal aspect |
| C - Epithelial wall | - | Wall forms; spur grows; nasal pit edges draw together |
| D - Wall disappears | - | Mesoderm spreads; ectoderm hollows out / perforates |
| E - Primary palate complete | 16 mm | Mesoderm extends progressively → forms subnarial region |
- Week 4: Neural crest-derived facial prominences appear from 1st pharyngeal arch
- Week 5: Nasal placodes form → invaginate → nasal pits; lateral and medial nasal prominences form
- Weeks 6-7: Paired maxillary prominences fuse with paired medial nasal prominences → upper lip
- Weeks 6-9: Palatal shelves form; initially vertical (tongue obstructs)
- Weeks 8-12: Palatal shelves elevate horizontally and fuse front to back → secondary palate
What Forms What
Medial nasal prominences → Philtrum, nasal tip, columella, premaxilla
Maxillary prominences → Lateral lip, lateral alveolus, secondary palate
FAILURE of medial nasal + maxillary fusion → Cleft lip ± primary palate
FAILURE of palatal shelf elevation/fusion → Isolated cleft of secondary palate
These two failure points explain why CL/P and isolated CP are distinct entities
PAGES 13-15 | PRESURGICAL MANAGEMENT
Feeding
- Specialized bottles: Haberman feeder, Mead Johnson cleft palate nurser, Pigeon feeder
- Upright positioning after feeds; nasal regurgitation is expected
- NGT only if all feeding methods fail
Presurgical Nasoalveolar Molding (NAM)
- Started in first weeks of life before surgery
- Molds alveolar segments, narrows cleft gap, elongates columella (critical in bilateral cleft)
- Requires weekly adjustments; significant parental commitment
- Reduces surgical complexity and severity of nasal deformity
- Walker et al. (1966): Extensive lateral undermining for lip repair has deleterious effects
- Lip adhesion first → then definitive closure WITHOUT lateral periosteal undermining → reduces crossbite
Early Controversy (Historical)
- Schweckendiek (1962): Close soft palate early → obturate hard palate → repair hard palate later
- Problem: Cosman & Falk (1980) showed this caused significantly impaired speech
- Primary nasal correction at time of lip repair (Blair technique, revived by McComb 1986):
- Earlier concern: interfered with nasal development
- Current view: properly executed, restores nasal form WITHOUT harming development
PAGES 15-17 | SURGICAL TIMING
The Cleft Protocol (Stages of Repair)
| Age | Procedure |
|---|---|
| 0-3 months | Presurgical orthodontics / NAM |
| 3-6 months | Cleft lip repair (Rule of Tens) |
| 9-12 months | Cleft palate repair |
| 3-6 years (optional) | Pharyngoplasty / palatal lengthening for VPI |
| 7-9 years | Alveolar bone graft (mixed dentition) |
| 10-12 years | Rhinoplasty + lip revision (optional) |
| 16-18 years | Orthognathic surgery (optional) |
Rule of Tens (for Lip Repair)
- 10 weeks old
- 10 lbs (4.5 kg) weight
- 10 g/dL hemoglobin
Timing Controversy - Palate Repair
- Early repair (6-9 months): Better speech outcomes; worse facial growth
- Late repair (18+ months): Better facial growth; poor speech
- Current consensus (9-12 months): Prioritize speech; accept some growth impact; address with orthodontics/surgery later
- Early complete closure of primary + secondary palates can cause dental deformities
- Tightness across repair + denuded bone surfaces + early surgery = adversely affects growth
PAGES 17-19 | CLEFT LIP REPAIR
Key Anatomical Landmarks (always mark first)
- Cupid's bow: curved upper vermilion border with two peaks and central dip
- White roll: white ridge at the mucocutaneous junction - most important landmark for alignment
- Philtral ridges: two vertical ridges flanking the philtrum
- Columellar base: top of the lip/nose junction
MILLARD ROTATION-ADVANCEMENT (Unilateral - Gold Standard)
| Point | Location |
|---|---|
| 1 | Low point of Cupid's bow (midline) |
| 2 | Cupid's bow peak on non-cleft side |
| 3 | Cupid's bow peak on cleft side (1→3 = 1→2) |
| 4 | Alar base on non-cleft side |
| 5 | Columellar base on non-cleft side (top of rotation flap) |
| X | Back-cut point - MEDIAL to non-cleft philtral ridge |
| 6 | Alar base on cleft side (determines advancement flap width) |
- C-flap: small flap in the rotation used to reconstruct nasal sill / floor
- Back-cut runs parallel and medial to non-cleft philtral ridge → preserves scar-free philtral ridge
TENNISON-RANDALL (Geometric / Triangular Flap - Unilateral)
- Small triangular flap from lateral segment inserted into medial segment
- Better for wide clefts where rotation alone is insufficient
- More predictable math design; scar NOT along anatomical lines (slight cosmetic disadvantage)
PAGES 19-21 | BILATERAL CLEFT LIP REPAIR
The Challenges (different from unilateral)
- Protruding premaxilla - often outside the dental arch
- Short/absent columella - most difficult feature to correct
- Wide bilateral alar bases
- No defined philtrum - prolabium used to create one
Surgical Technique
- Prolabium → constructed into philtrum
- Orbicularis oris muscle bridged from both lateral elements UNDER prolabium
- C-flaps from prolabium → used to lengthen columella (Millard)
- Alar bases repositioned medially
Avoid
- Tight repair → scarring → restricts premaxillary and midface growth
Nasal Deformity in Cleft Lip
- Cleft side alar base → displaced laterally + inferiorly
- Cleft side alar cartilage → flattened and buckled
- Nasal tip and caudal septum → deviate toward NON-cleft side
- Primary rhinoplasty at time of lip repair = now standard of care
- Do NOT remove cartilage; reposition and suture only
- Flat, wide nasal tip; short columella; bilateral alar widening; horizontal alae
- Columella lengthening via: C-flaps, forked flap from prolabium (Cronin), secondary V-Y advancement
PAGES 22-24 | CLEFT PALATE REPAIR (PALATOPLASTY)
Goals
- Anatomical separation of oral + nasal cavities
- Adequate velopharyngeal closure for speech
- Avoid midface growth restriction
- Restore Eustachian tube function (hearing)
Key Muscle: Levator Veli Palatini
NORMAL: Runs HORIZONTALLY → hammock/sling → closes velopharynx during speech
IN CLEFT: Runs ANTERIORLY → inserts into posterior hard palate → NO sling formed
FIX = Intravelar veloplasty (IVVP): Detach and reorient into proper horizontal sling
Techniques Comparison
| Technique | How | Palate Length | Denuded Bone | VPI Rate |
|---|---|---|---|---|
| Von Langenbeck | Bipedicled mucoperiosteal flaps pushed medially | No change | Moderate | Higher |
| Veau-Wardill-Kilner (V-Y pushback) | V-Y retroposition flaps | Lengthens | More | Lower |
| Furlow Double Z-plasty | Two opposing Z-plasties (oral + nasal layers) | Lengthens | Minimal | LOWEST |
| Two-stage | Soft palate at 6-9 mo; hard palate at 12-18 mo | - | Less in yr 1 | Variable |
FURLOW Z-PLASTY (MOST IMPORTANT - Gold Standard for Soft Palate)
- Oral layer: posteriorly based muscle-containing flap on one side
- Nasal layer: posteriorly based flap on the OPPOSITE side
- Result: Palate lengthened + levator muscle repositioned into sling simultaneously
- Best speech outcomes; lowest VPI rates
- Trade-off: Higher fistula rate in very wide clefts
PAGES 24-25 | VELOPHARYNGEAL INSUFFICIENCY (VPI)
Definition
Diagnosis
- Nasopharyngoscopy (gold standard - dynamic real-time view)
- Lateral pharyngogram (radiograph during phonation)
- Nasometry (measures nasal airflow during speech)
VPI Treatment Ladder
- Speech therapy - first line for mild/marginal cases
- Furlow re-do - if original repair was not Furlow
- Pharyngeal flap (superiorly based from posterior pharyngeal wall)
- Blocks central velopharynx; lateral ports remain for breathing
- Best for large VPI gaps
- Sphincter pharyngoplasty (tonsillar pillar flaps inset into posterior wall)
- Narrows pharynx; side ports close during speech
PAGES 25-26 | ALVEOLAR BONE GRAFTING (ABG)
Purpose
- Allow canine eruption through graft site
- Close oronasal fistula
- Support alar base
- Enable dental implant placement later
Timing - CRITICAL
- Secondary ABG at 7-9 years = OPTIMAL (canine root 2/3 formed = Bergland criteria)
- Primary ABG (abandoned): worse facial growth
- Too late = canine cannot erupt through graft
Donor Site
- Anterior iliac crest cancellous bone (most common)
- Also: calvarial, tibia (in young children), chin (small defects)
Three-Layer Repair (order)
- Nasal mucosa (floor of nose) - closed first
- Cancellous bone packed in
- Oral mucoperiosteal flaps closed over graft - NO tension
PAGES 26-28 | COMPLICATIONS & LONG-TERM
Ear/Hearing (Near-Universal in Cleft Palate)
- Eustachian tube dysfunction → otitis media with effusion ("glue ear") → conductive hearing loss
- Due to abnormal tensor veli palatini function
- Treatment: Ventilation tubes (grommets) - placed at time of palate repair
- Must monitor hearing throughout childhood
Key Complications
| Complication | Cause | Management |
|---|---|---|
| Wound dehiscence (lip) | Tight repair, infection | Re-suture or secondary revision |
| Whistling deformity | Tight or deficient vermilion | Secondary lip revision |
| Notching of white roll | Malalignment at repair | Secondary revision |
| Oronasal fistula (most serious palate complication) | Wide cleft, tension, infection | Local flaps, distant flaps, re-repair |
| VPI (10-40% after palatoplasty) | Inadequate levator sling | See VPI ladder above |
| Midface hypoplasia | Scarring + growth restriction | Orthodontics; LeFort I at skeletal maturity |
Speech Considerations
- All patients need speech and language therapy (SLT) from ~18 months
- Problems: hypernasality, nasal emission, compensatory articulation (glottal stops, pharyngeal fricatives)
- Compensatory articulation = LEARNED; persists even after VPI correction; requires intensive SLT
Long-Term Growth
- Midface hypoplasia = concave profile, class III occlusion, maxillary retrusion
- Orthognathic surgery (LeFort I ± BSSO) after skeletal maturity (17-18 yrs F; 18-20 yrs M)
- Ongoing orthodontics from mixed dentition to adulthood
⚡ QUICK FLASH REFERENCE (Last Page Style)
| Fact | Answer |
|---|---|
| Primary palate = | Premaxilla + anterior septum + lip (anterior to incisive foramen) |
| Secondary palate = | Hard + soft palate + uvula (posterior to incisive foramen) |
| Veau I | Soft palate only |
| Veau II | Hard + soft palate (secondary palate) |
| Veau III | Unilateral complete cleft |
| Veau IV | Bilateral complete cleft |
| Striped Y boxes 1-6 | Lip/alveolus/primary palate |
| Striped Y boxes 7-9 | Hard palate (7,8) + soft palate (9) |
| Tessier rule | Lower # + Upper # = 14 |
| Tessier #7 | Most common; preauricular (hemifacial microsomia) |
| CL/P incidence Orientals | ~2.1/1000 (highest) |
| CL/P incidence Blacks | ~0.41/1000 (lowest) |
| CP racial variation | NONE (~0.5/1000 all races) |
| Left : Right : Bilateral cleft lip | 6 : 3 : 1 |
| CL/P sex | Male excess |
| CP sex | Female excess |
| One sibling with CL/P | 4.4% recurrence risk |
| One parent with CL/P | 3.2% recurrence risk |
| Sibling + parent both affected | ~15.8% risk - DO NOT quote flat 5% |
| Syndromic clefting | ~3% of clinic population |
| Rule of Tens | 10 weeks, 10 lbs, 10 g/dL Hb |
| Lip repair age | 3-6 months |
| Palate repair age | 9-12 months |
| Alveolar bone graft age | 7-9 years (canine root 2/3 formed) |
| Gold standard unilateral lip repair | Millard rotation-advancement |
| Gold standard palate repair | Furlow double opposing Z-plasty |
| Key muscle in palatoplasty | Levator veli palatini |
| Key problem in cleft palate (ears) | Eustachian tube dysfunction → glue ear |
| Most serious palate complication | Oronasal fistula |
| VPI hypernasality: best surgical Rx | Pharyngeal flap (large gap) |
| Most common syndromic cleft | Van der Woude (IRF6 gene, lower lip pits) |