tibia fracture management clinical practice guidelines 2025

tibial fractures AND treatment

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~/attachments/db99d360-4d33-4a32-aa41-709e6710ea43

python - <<'PY' from pptx import Presentation from pathlib import Path p=Path('/tmp/workspace/attachments/db99d360-4d33-4a32-aa41-709e6710ea43/CPT_Tibia_50_slides-3 (1).pptx') prs=Presentation(p) print('SLIDES',len(prs.slides),'layouts',len(prs.slide_layouts)) for i,slide in enumerate(prs.slides,1): texts=[] for shape in slide.shapes: if getattr(shape,'has_text_frame',False): tx=shape.text_frame.text.strip().replace('\x0b',' | ') if tx: texts.append(tx) notes='' try: notes=slide.notes_slide.notes_text_frame.text.strip() except Exception: pass print(f'\n---SLIDE {i}---') print('\n'.join(texts)) if notes: print('NOTES:',notes) PY

congenital pseudarthrosis tibia management cross union review 2025

congenital pseudarthrosis tibia cross union

PMID: 39764600

PMID: 35102104

mkdir -p "/tmp/workspace/cpt-tibia-seminar/output" && python - <<'PY' from pptx import Presentation from pathlib import Path src=Path('/tmp/workspace/attachments/db99d360-4d33-4a32-aa41-709e6710ea43/CPT_Tibia_50_slides-3 (1).pptx') out=Path('/tmp/workspace/cpt-tibia-seminar/output/CPT_Tibia_corrected_seminar.pptx') prs=Presentation(src) updates={ 13: '''Radiological Appearance Typical CPT findings • Anterolateral bowing of the tibia, usually at the middle-distal junction • Narrow or obliterated medullary canal, cortical sclerosis and dysplastic bone • Cystic/pre-fracture change may precede a pathological fracture • After fracture: tapered, atrophic bone ends and persistent nonunion; the fibula may also be involved Important • Fibrous dysplasia is a differential diagnosis, not a typical radiological subtype of CPT.''', 19: '''Neurofibromatosis Type 1: Diagnostic Framework Use the revised international consensus criteria (2021). In a person without an affected parent, NF1 is diagnosed when 2 or more criteria are present, for example: • ≥6 café-au-lait macules: >5 mm prepubertal or >15 mm postpubertal • Axillary or inguinal freckling • ≥2 neurofibromas or 1 plexiform neurofibroma • Optic pathway glioma; ≥2 Lisch nodules/choroidal abnormalities; a distinctive osseous lesion; or a pathogenic NF1 variant If a parent has NF1, one criterion is sufficient. CPT is a distinctive osseous lesion, but should prompt a complete NF1 assessment rather than diagnosis by itself.''', 22: '''Investigations Plain radiographs • AP and lateral radiographs of the whole tibia and fibula, including ankle; serial films assess alignment and union. MRI • Useful selectively to define the dysplastic segment and surrounding soft tissues, especially for operative planning or diagnostic uncertainty. CT • Consider selectively for complex deformity or detailed assessment of union; limit radiation exposure in children. Other assessment • Clinical screening for NF1, limb-length measurement and ankle alignment. Bone scintigraphy is not routine for CPT.''', 30: '''Treatment Principles • Excise nonviable pseudarthrosis tissue and abnormal periosteum until viable bleeding bone and healthy soft-tissue planes are reached. • Restore stable alignment and provide durable mechanical stability, often with combined fixation. • Use generous autologous bone graft when indicated. • Address the fibula, limb-length discrepancy and ankle alignment as part of the reconstruction plan. • Preserve the growing child’s function and continue protection and surveillance through skeletal maturity. Evidence note: BMP, bisphosphonates and periosteal grafts are adjuncts with limited or heterogeneous evidence; they are not universal standard treatment.''', 31: '''Why Refracture Prevention Matters • CPT has a high refracture risk even after initial union. • Durable alignment, stable internal fixation when appropriate, adequate biological reconstruction and orthotic protection are central. • A tibiofibular cross-union can increase the cross-sectional area of healed bone in selected cases treated in experienced centres. • Zoledronic acid and BMP-based strategies remain centre-specific or investigational adjuncts; discuss uncertain benefit and potential risks with families. • Management should be individualised according to age, tibial and fibular anatomy, prior operations, deformity and limb length.''', 35: '''Selected References 1. Song W, et al. Surgical treatment of congenital pseudarthrosis of the tibia in children: CPAM-LRC consensus and guidelines. Int J Surg. 2025. PMID: 39764600. 2. Rastogi A, Agarwal A. Surgical treatment options for congenital pseudarthrosis of tibia in children: cross-union versus other options. A systematic review. J Pediatr Orthop B. 2022. PMID: 35102104. 3. Legius E, et al. Revised diagnostic criteria for neurofibromatosis type 1. Genet Med. 2021. 4. Shah H, Rousset M, Canavese F. Congenital pseudarthrosis of the tibia: management and complications. Indian J Orthop. 2012;46:616-626.''', 39: '''Intramedullary Fixation with Bone Grafting Principle • Radical excision of the pseudarthrosis and abnormal periosteum, correction of alignment, stable intramedullary fixation and autologous grafting. • In young children, a telescopic or growing rod may be considered; the fixation strategy must respect the physis and be tailored to anatomy. • Supplemental plate fixation or external fixation may be used in selected reconstructions. • Retaining protective fixation after union may reduce refracture risk, but requires follow-up for growth-related complications. Key message: do not imply that every rod avoids the distal tibial physis or should invariably remain until skeletal maturity.''', 40: '''Amputation and Adjuncts Amputation • A salvage option after repeated failed reconstruction when a functional, plantigrade limb cannot reasonably be achieved. It requires shared decision-making with the family and rehabilitation team. Adjuncts • Low-intensity pulsed ultrasound: insufficient CPT-specific evidence for routine use. • Recombinant BMP: evidence is limited; regulatory approval and paediatric use vary by jurisdiction, and use may be off-label. • Bisphosphonates and periosteal grafting: promising in selected protocols but not established universal care. These adjuncts do not replace meticulous excision, stable fixation, grafting and long-term follow-up.''', 41: '''The Cross-Union Concept • Cross-union reconstruction creates a broad biological bridge between tibia and fibula after resection of the pseudarthrosis. • The intent is a larger, mechanically durable union mass and lower refracture risk. • It may use stable tibial and fibular fixation, autologous bone graft, periosteal grafting and temporary external fixation, depending on the protocol. • Evidence from case series and systematic reviews is encouraging, but patient selection and technique vary and long-term comparative evidence is limited. • It should be undertaken in specialist paediatric limb-reconstruction centres.''', 42: '''Cross-Union Protocol: Important Caveats A published Paley-style protocol combines: • circumferential excision of the pseudarthrosis and abnormal periosteum • stable tibial and fibular fixation, often with adjunctive external fixation • generous autologous cancellous graft and periosteal grafting • selected use of BMP and antiresorptive therapy in some protocols Seminar point • This is a specialist-centre protocol, not a universal guideline. BMP and zoledronic acid use in children may be off-label and requires local governance, informed consent and careful monitoring.''', 45: '''Prognostic Factors and Choosing the Procedure Features commonly associated with more difficult reconstruction include: • NF1 association and severe dysplastic/atrophic bone • young age and a short distal tibial segment • fibular pseudarthrosis, proximal fibular migration or ankle valgus • limb-length discrepancy and multiplanar deformity • previous failed operations and poor soft-tissue envelope Choose the reconstruction based on anatomy, prior treatment, family goals and local expertise. No single procedure is best for every child.''', 46: '''Controversies in Management • Best timing of surgery: early union versus operating on a very small dysplastic segment • Optimal fixation: intramedullary device, external fixation, plate augmentation or a combination • Role of vascularised fibular graft versus tibiofibular cross-union • Whether and how to treat the fibula and prevent ankle valgus • Benefit, safety and regulatory status of BMP and bisphosphonates in children • Duration of orthotic protection and retained internal fixation after union Take-home: outcomes depend on both biological reconstruction and long-term mechanical protection.''', 47: '''Case Example: Use a Verified CPT Case This slide’s original history describes post-infectious tibial nonunion after osteomyelitis, not congenital pseudarthrosis of the tibia. For a CPT seminar, replace it with a documented CPT case showing: • age at presentation and whether NF1 features are present • pre-fracture bowing/dysplasia and tibia-fibula radiographs • prior treatment, limb length and ankle alignment • chosen reconstruction, union timeline and refracture surveillance Do not present chronic osteomyelitis nonunion as CPT.''', 48: '''Case Example: Suggested Imaging Sequence Replace the original images with radiographs from the verified CPT case: 1. Initial AP and lateral whole-leg films: bowing, dysplastic segment and fibular status 2. Preoperative films: pseudarthrosis, deformity and limb-length assessment 3. Immediate postoperative films: alignment, fixation and graft/cross-union construct 4. Follow-up films: progressive union, ankle alignment and any refracture Ensure consent and complete de-identification before presentation.''', 49: '''Take-Home Message • CPT is a rare paediatric dysplasia that commonly progresses from anterolateral bowing to pathological fracture and persistent pseudarthrosis. • Assess the whole limb: tibia, fibula, ankle alignment, limb length and features of NF1. • The surgical objective is durable union with correct alignment and prevention of refracture, rather than radiographic union alone. • Meticulous excision, stable fixation, autologous grafting and long-term protection are core principles. • Cross-union and other combined reconstructions show promising results, but management should be individualised in a specialist paediatric limb-reconstruction service.''' } def replace_text(shape, new): tf=shape.text_frame # preserve font formatting of first paragraph/run where possible p0=tf.paragraphs[0] style=None if p0.runs: r=p0.runs[0] style=(r.font.name,r.font.size,r.font.bold,r.font.italic,r.font.color.type if r.font.color else None) tf.clear() lines=new.split('\n') for j,line in enumerate(lines): p=tf.paragraphs[0] if j==0 else tf.add_paragraph() p.text=line if j==0 and p.runs and style: r=p.runs[0] r.font.name,r.font.size,r.font.bold,r.font.italic=style[:4] for n,text in updates.items(): slide=prs.slides[n-1] candidates=[s for s in slide.shapes if getattr(s,'has_text_frame',False) and s.text_frame.text.strip()] # replace the longest text content box on each slide target=max(candidates,key=lambda s:len(s.text_frame.text)) replace_text(target,text) # add presentation properties prs.core_properties.title='Congenital Pseudarthrosis of the Tibia (CPT)' prs.core_properties.subject='Corrected seminar presentation' prs.core_properties.author='Dr. A. Rajasekhar (reviewed copy)' prs.save(out) print(out) PY python - <<'PY' from pptx import Presentation p='/tmp/workspace/cpt-tibia-seminar/output/CPT_Tibia_corrected_seminar.pptx' prs=Presentation(p) print('verified slides:',len(prs.slides)) for n in [13,19,22,30,31,35,39,40,41,42,45,46,47,48,49]: texts=[s.text_frame.text for s in prs.slides[n-1].shapes if getattr(s,'has_text_frame',False) and s.text_frame.text.strip()] print(n, max(texts,key=len)[:90].replace('\n',' | ')) PY

python - <<'PY' from pptx import Presentation from pptx.util import Pt p='/tmp/workspace/cpt-tibia-seminar/output/CPT_Tibia_corrected_seminar.pptx' prs=Presentation(p) for n in [13,19,22,30,31,35,39,40,41,42,45,46,47,48,49]: slide=prs.slides[n-1] shapes=[s for s in slide.shapes if getattr(s,'has_text_frame',False) and s.text_frame.text.strip()] target=max(shapes,key=lambda s:len(s.text_frame.text)) tf=target.text_frame tf.word_wrap=True tf.margin_left=Pt(4); tf.margin_right=Pt(4) for i,para in enumerate(tf.paragraphs): for run in para.runs: run.font.size=Pt(19 if i==0 else 13.5) if i==0: run.font.bold=True # modest paragraph spacing for para in tf.paragraphs: para.space_after=Pt(1) prs.save(p) print('saved') PY python - <<'PY' from pptx import Presentation p='/tmp/workspace/cpt-tibia-seminar/output/CPT_Tibia_corrected_seminar.pptx' prs=Presentation(p) assert len(prs.slides)==50 print('PPTX opens successfully. Slides:',len(prs.slides)) print('File size bytes:',__import__('os').path.getsize(p)) PY