What’s the clinical examination in a patient with Genu Valgum or pea planus or CTEV or scoliosis

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genu valgum knock knee clinical examination intermalleolar distance

This clinical photograph displays a bilateral lower extremity deformity in a patient, likely within an orthopedic or pediatric context. The image illustrates a severe, persistent bilateral genu valgum (knock-knee) deformity, characterized by the inward angulation of the distal femur and proximal tibia. When the knees are brought into close proximity, there is a substantial intermalleolar distance, indicating significant lateral deviation of the lower legs. The visual evidence suggests a skeletal dysplasia or developmental condition, such as Ellis-van Creveld (EVC) syndrome, given the associated clinical context of dysplastic epiphyses. The skin appears intact without visible scarring or primary lesions in the visualized field. This image serves as an educational example for identifying pathological knee alignment and the clinical manifestation of severe valgus stress on the lower limbs.

This clinical photograph displays a bilateral lower extremity deformity in a patient, likely within an orthopedic or pediatric context. The image illustrates a severe, persistent bilateral genu valgum (knock-knee) deformity, characterized by the inward angulation of the distal femur and proximal tibia. When the knees are brought into close proximity, there is a substantial intermalleolar distance, indicating significant lateral deviation of the lower legs. The visual evidence suggests a skeletal dysplasia or developmental condition, such as Ellis-van Creveld (EVC) syndrome, given the associated clinical context of dysplastic epiphyses. The skin appears intact without visible scarring or primary lesions in the visualized field. This image serves as an educational example for identifying pathological knee alignment and the clinical manifestation of severe valgus stress on the lower limbs.

This dual-panel image demonstrates the preoperative assessment of a lower limb deformity, specifically genu valgum (knock-knees). 

Panel A is a clinical photograph of a patient standing in an anterior view. It displays surface anatomy and clinical measurements. Marked on the skin are the anatomical axes of the femurs and tibiae. Label (1) indicates the clinical tibiofemoral angle, while label (2) highlights the intermalleolar distance (IMD), measured between the medial malleoli while the knees are touching.

Panel B is a corresponding standing anteroposterior (AP) long-limb X-ray scanogram showing the skeletal structure from the hips to the ankles. This radiographic view allows for precise angular measurements. Label (3) indicates the radiological tibiofemoral angle, formed by the intersection of the femoral and tibial anatomical axes. Label (4) denotes the mechanical axis deviation (MAD), which is the distance between the center of the knee joint and the mechanical axis line (drawn from the center of the femoral head to the center of the ankle). This comparison illustrates the correlation between physical examination findings and radiographic evidence in orthopedic surgical planning.

This dual-panel image demonstrates the preoperative assessment of a lower limb deformity, specifically genu valgum (knock-knees). Panel A is a clinical photograph of a patient standing in an anterior view. It displays surface anatomy and clinical measurements. Marked on the skin are the anatomical axes of the femurs and tibiae. Label (1) indicates the clinical tibiofemoral angle, while label (2) highlights the intermalleolar distance (IMD), measured between the medial malleoli while the knees are touching. Panel B is a corresponding standing anteroposterior (AP) long-limb X-ray scanogram showing the skeletal structure from the hips to the ankles. This radiographic view allows for precise angular measurements. Label (3) indicates the radiological tibiofemoral angle, formed by the intersection of the femoral and tibial anatomical axes. Label (4) denotes the mechanical axis deviation (MAD), which is the distance between the center of the knee joint and the mechanical axis line (drawn from the center of the femoral head to the center of the ankle). This comparison illustrates the correlation between physical examination findings and radiographic evidence in orthopedic surgical planning.

A comparison of two clinical photographs demonstrating the progression and partial resolution of genu valgum (knock-knees) in a pediatric patient. The left image shows a child with significant bilateral genu valgum; when the knees are adducted and touching, there is a wide intermalleolar distance between the ankles. The right image, taken after a 1-year follow-up following medical intervention (stosstherapy for nutritional rickets), shows a marked reduction in the angular deformity. The mechanical axis of the lower limbs appears more aligned, with a substantially narrower gap between the ankles when the knees are in proximity. These images illustrate the clinical manifestation of metabolic bone disease in children and the potential for lower limb remodeling with appropriate treatment. The visual focus is on the orthopedic alignment of the femurs and tibiae relative to the midline.

A comparison of two clinical photographs demonstrating the progression and partial resolution of genu valgum (knock-knees) in a pediatric patient. The left image shows a child with significant bilateral genu valgum; when the knees are adducted and touching, there is a wide intermalleolar distance between the ankles. The right image, taken after a 1-year follow-up following medical intervention (stosstherapy for nutritional rickets), shows a marked reduction in the angular deformity. The mechanical axis of the lower limbs appears more aligned, with a substantially narrower gap between the ankles when the knees are in proximity. These images illustrate the clinical manifestation of metabolic bone disease in children and the potential for lower limb remodeling with appropriate treatment. The visual focus is on the orthopedic alignment of the femurs and tibiae relative to the midline.

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scoliosis Adams forward bend test rib hump

Clinical photograph demonstrating a posterior view of a patient performing the Adams Forward Bend Test, a clinical screening tool for scoliosis. The patient is leaning forward at the waist, which accentuates truncal asymmetry. The image clearly shows a prominent right-sided thoracic rib hump, where the ribs on the convex side of the spinal curvature protrude posteriorly due to vertebral rotation. This results in a noticeable dorsal tilt and uneven contour of the back compared to the contralateral side. Additional findings include asymmetrical shoulder heights and uneven soft tissue folds at the waistline. The photograph serves to illustrate the physical manifestation of structural scoliosis, highlighting how forward flexion makes rotational spinal deformities more visible to the clinician. The skin also displays numerous benign-appearing melanocytic nevi across the dorsal surface, though these are secondary to the primary orthopedic assessment.

Clinical photograph demonstrating a posterior view of a patient performing the Adams Forward Bend Test, a clinical screening tool for scoliosis. The patient is leaning forward at the waist, which accentuates truncal asymmetry. The image clearly shows a prominent right-sided thoracic rib hump, where the ribs on the convex side of the spinal curvature protrude posteriorly due to vertebral rotation. This results in a noticeable dorsal tilt and uneven contour of the back compared to the contralateral side. Additional findings include asymmetrical shoulder heights and uneven soft tissue folds at the waistline. The photograph serves to illustrate the physical manifestation of structural scoliosis, highlighting how forward flexion makes rotational spinal deformities more visible to the clinician. The skin also displays numerous benign-appearing melanocytic nevi across the dorsal surface, though these are secondary to the primary orthopedic assessment.

A clinical photograph demonstrating a procedural assessment for scoliosis using the Adams forward bend test. The patient is positioned in forward flexion, which highlights a prominent right-sided rib hump, indicative of thoracic vertebral rotation and spinal convexity. An examiner is shown holding a Scoliometer (a specialized inclinometer) across the patient's mid-thoracic spine to quantify the Angle of Trunk Rotation (ATR). The device features a curved scale and a ball bearing level to provide a numerical degree of asymmetry. This clinical procedure is a standard screening and monitoring tool used in orthopedics and physical therapy to evaluate the severity and progression of adolescent idiopathic scoliosis and other structural spinal deformities. The image clearly illustrates the anatomical relationship between spinal curvature and visible thoracic cage distortion.

A clinical photograph demonstrating a procedural assessment for scoliosis using the Adams forward bend test. The patient is positioned in forward flexion, which highlights a prominent right-sided rib hump, indicative of thoracic vertebral rotation and spinal convexity. An examiner is shown holding a Scoliometer (a specialized inclinometer) across the patient's mid-thoracic spine to quantify the Angle of Trunk Rotation (ATR). The device features a curved scale and a ball bearing level to provide a numerical degree of asymmetry. This clinical procedure is a standard screening and monitoring tool used in orthopedics and physical therapy to evaluate the severity and progression of adolescent idiopathic scoliosis and other structural spinal deformities. The image clearly illustrates the anatomical relationship between spinal curvature and visible thoracic cage distortion.

This clinical photograph demonstrates a procedural assessment for scoliosis using a scoliometer during an Adams Forward Bend Test. The image shows the posterior view of a patient's torso in a flexed position, revealing a prominent rib hump and paraspinal muscle asymmetry on the left side of the upper back. A clinician, wearing a white lab coat, is holding a white scoliometer horizontally across the apex of the spinal curvature to measure the Angle of Trunk Rotation (ATR). The scoliometer features a curved base designed to fit over the spinous processes and a graduated scale with black markings and a red indicator to quantify the degree of vertebral rotation. This diagnostic procedure is essential for identifying adolescent idiopathic scoliosis and determining the need for further radiological imaging. The clinical significance of this visual is to illustrate the quantification of trunk asymmetry and postural changes associated with lateral spinal curvature and rotational deformity.

This clinical photograph demonstrates a procedural assessment for scoliosis using a scoliometer during an Adams Forward Bend Test. The image shows the posterior view of a patient's torso in a flexed position, revealing a prominent rib hump and paraspinal muscle asymmetry on the left side of the upper back. A clinician, wearing a white lab coat, is holding a white scoliometer horizontally across the apex of the spinal curvature to measure the Angle of Trunk Rotation (ATR). The scoliometer features a curved base designed to fit over the spinous processes and a graduated scale with black markings and a red indicator to quantify the degree of vertebral rotation. This diagnostic procedure is essential for identifying adolescent idiopathic scoliosis and determining the need for further radiological imaging. The clinical significance of this visual is to illustrate the quantification of trunk asymmetry and postural changes associated with lateral spinal curvature and rotational deformity.

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CTEV clubfoot talipes equinovarus clinical features hindfoot varus forefoot adduction

This clinical photograph shows a bilateral lower limb presentation of congenital talipes equinovarus (CTEV), commonly known as clubfoot, in an adult patient. The image illustrates severe structural deformities characterized by forefoot adduction, midfoot cavus, and hindfoot varus. The left foot exhibits more profound involvement, with the foot severely rotated medially (inward) and the weight-bearing surface appearing to be the lateral border of the foot rather than the sole. The right foot shows similar inward angulation and equinus, though less pronounced than the left. Associated muscle atrophy of the lower calves is visible, a common finding in untreated or chronic CTEV. The presentation demonstrates the long-term musculoskeletal impact and abnormal gait mechanics associated with uncorrected congenital foot deformities, highlighting the clinical need for specialized orthopedic intervention or orthotic management to improve stability and weight distribution.

This clinical photograph shows a bilateral lower limb presentation of congenital talipes equinovarus (CTEV), commonly known as clubfoot, in an adult patient. The image illustrates severe structural deformities characterized by forefoot adduction, midfoot cavus, and hindfoot varus. The left foot exhibits more profound involvement, with the foot severely rotated medially (inward) and the weight-bearing surface appearing to be the lateral border of the foot rather than the sole. The right foot shows similar inward angulation and equinus, though less pronounced than the left. Associated muscle atrophy of the lower calves is visible, a common finding in untreated or chronic CTEV. The presentation demonstrates the long-term musculoskeletal impact and abnormal gait mechanics associated with uncorrected congenital foot deformities, highlighting the clinical need for specialized orthopedic intervention or orthotic management to improve stability and weight distribution.

Clinical photographs depicting the management of Congenital Talipes Equinovarus (CTEV), commonly known as clubfoot, using the Ponseti technique. Figure A shows an infant with bilateral clubfoot exhibiting classic deformities: forefoot adduction, hindfoot varus, and equinus. A prominent medial longitudinal arch is visible on the right foot, signifying cavus deformity. Figure B demonstrates the initial phase of serial casting. The left lower extremity is encased in a white, above-knee plaster cast. This first cast is specifically designed to correct the cavus component by supinating the forefoot to align it with the hindfoot while maintaining some abduction. The cast extends from the upper thigh to the toes, which remain visible for neurovascular monitoring. This visual documentation illustrates the step-wise orthopedic correction of neonatal foot deformities through manual manipulation and rigid immobilization.

Clinical photographs depicting the management of Congenital Talipes Equinovarus (CTEV), commonly known as clubfoot, using the Ponseti technique. Figure A shows an infant with bilateral clubfoot exhibiting classic deformities: forefoot adduction, hindfoot varus, and equinus. A prominent medial longitudinal arch is visible on the right foot, signifying cavus deformity. Figure B demonstrates the initial phase of serial casting. The left lower extremity is encased in a white, above-knee plaster cast. This first cast is specifically designed to correct the cavus component by supinating the forefoot to align it with the hindfoot while maintaining some abduction. The cast extends from the upper thigh to the toes, which remain visible for neurovascular monitoring. This visual documentation illustrates the step-wise orthopedic correction of neonatal foot deformities through manual manipulation and rigid immobilization.

This composite clinical photograph displays a newborn's feet from multiple angles, demonstrating bilateral congenital talipes equinovarus (CTEV), commonly known as clubfoot. The visual features exhibit the characteristic four components of the deformity: hindfoot equinus (downward pointing of the foot at the ankle), hindfoot varus (inward tilting of the heel), midfoot adductus (medial deviation of the forefoot), and cavus (high medial longitudinal arch). Notable clinical signs include deep skin creases on the medial aspect of the midfoot and posterior aspect of the ankle. The infant is wearing white hospital identification bands around both lower legs. This image serves as an educational tool in pediatric orthopedics to illustrate the physical presentation of idiopathic clubfoot at birth, which is typically assessed using the Pirani or Dimeglio scoring systems for severity before initiating Ponseti method manipulative treatment.

This composite clinical photograph displays a newborn's feet from multiple angles, demonstrating bilateral congenital talipes equinovarus (CTEV), commonly known as clubfoot. The visual features exhibit the characteristic four components of the deformity: hindfoot equinus (downward pointing of the foot at the ankle), hindfoot varus (inward tilting of the heel), midfoot adductus (medial deviation of the forefoot), and cavus (high medial longitudinal arch). Notable clinical signs include deep skin creases on the medial aspect of the midfoot and posterior aspect of the ankle. The infant is wearing white hospital identification bands around both lower legs. This image serves as an educational tool in pediatric orthopedics to illustrate the physical presentation of idiopathic clubfoot at birth, which is typically assessed using the Pirani or Dimeglio scoring systems for severity before initiating Ponseti method manipulative treatment.

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pes planus flat foot clinical examination arch

This clinical photograph displays a medial-side view of a right foot during a pre-operative gait analysis, illustrating significant musculoskeletal deformity. The primary visible feature is the complete flattening of the medial longitudinal arch, a condition known as pes planus (flat foot). The medial border of the foot shows direct contact with the weight-bearing surface, indicated by a black arrow pointing to the collapsed arch region. Additionally, there is a visible inward tilting of the ankle and outward displacement of the heel, characteristic of a valgus hindfoot deformity (pes planovalgus). This image serves as a clinical representation of pediatric or adult acquired flatfoot deformity, demonstrating the associated pronated posture and the loss of normal anatomical curvature. It is intended for educational use in podiatry, orthopedics, and physical therapy to identify the visual markers of arch collapse and hindfoot malalignment before surgical intervention.

This clinical photograph displays a medial-side view of a right foot during a pre-operative gait analysis, illustrating significant musculoskeletal deformity. The primary visible feature is the complete flattening of the medial longitudinal arch, a condition known as pes planus (flat foot). The medial border of the foot shows direct contact with the weight-bearing surface, indicated by a black arrow pointing to the collapsed arch region. Additionally, there is a visible inward tilting of the ankle and outward displacement of the heel, characteristic of a valgus hindfoot deformity (pes planovalgus). This image serves as a clinical representation of pediatric or adult acquired flatfoot deformity, demonstrating the associated pronated posture and the loss of normal anatomical curvature. It is intended for educational use in podiatry, orthopedics, and physical therapy to identify the visual markers of arch collapse and hindfoot malalignment before surgical intervention.

This comparative clinical photograph displays two different presentations of pes planus (flat feet). Panel (a) is a lateral-oblique view of a right foot showing a significantly collapsed medial longitudinal arch with the midfoot in contact with the floor. The skin exhibits mottling, venous prominence, and hyperpigmentation, with thickening and discoloration of the hallux nail. Panel (b) is an anterior view of both feet in a weight-bearing position, demonstrating bilateral flattening of the arches accompanied by a valgus alignment at the ankles and abduction of the forefeet. While both cases illustrate characteristic arch collapse, panel (a) shows additional dermatological and vascular changes, whereas panel (b) highlights postural and structural malalignment associated with the condition. These images are used in medical education to illustrate the musculoskeletal morphology of flat feet and their potential association with hereditary neuropathies like Charcot-Marie-Tooth disease (CMT).

This comparative clinical photograph displays two different presentations of pes planus (flat feet). Panel (a) is a lateral-oblique view of a right foot showing a significantly collapsed medial longitudinal arch with the midfoot in contact with the floor. The skin exhibits mottling, venous prominence, and hyperpigmentation, with thickening and discoloration of the hallux nail. Panel (b) is an anterior view of both feet in a weight-bearing position, demonstrating bilateral flattening of the arches accompanied by a valgus alignment at the ankles and abduction of the forefeet. While both cases illustrate characteristic arch collapse, panel (a) shows additional dermatological and vascular changes, whereas panel (b) highlights postural and structural malalignment associated with the condition. These images are used in medical education to illustrate the musculoskeletal morphology of flat feet and their potential association with hereditary neuropathies like Charcot-Marie-Tooth disease (CMT).

This clinical photograph provides a side-by-side comparison of two distinct foot arch morphologies in a musculoskeletal context. Image A illustrates Pes Planus (flat foot), characterized by a collapsed medial longitudinal arch where the plantar surface of the midfoot makes near-complete contact with the ground. Image B illustrates Pes Cavus (high-arched foot), showing a markedly exaggerated medial longitudinal arch with a significant visible gap between the midfoot and the floor. The comparison demonstrates common orthopedic variations of the foot's structural alignment. These images serve as educational visual aids for identifying common foot deformities associated with gait abnormalities, plantar fascia tension, and muscle imbalances in physiotherapy and orthopedic assessments. The contrast highlights the difference between an absent arch (A) and an abnormally high arch (B), both of which can impact biomechanical stability and result in pain or instability.

This clinical photograph provides a side-by-side comparison of two distinct foot arch morphologies in a musculoskeletal context. Image A illustrates Pes Planus (flat foot), characterized by a collapsed medial longitudinal arch where the plantar surface of the midfoot makes near-complete contact with the ground. Image B illustrates Pes Cavus (high-arched foot), showing a markedly exaggerated medial longitudinal arch with a significant visible gap between the midfoot and the floor. The comparison demonstrates common orthopedic variations of the foot's structural alignment. These images serve as educational visual aids for identifying common foot deformities associated with gait abnormalities, plantar fascia tension, and muscle imbalances in physiotherapy and orthopedic assessments. The contrast highlights the difference between an absent arch (A) and an abnormally high arch (B), both of which can impact biomechanical stability and result in pain or instability.

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Clinical Examination in Orthopaedic Deformities


1. GENU VALGUM (Knock Knees)

Definition & Measurement

Genu valgum is inward angulation of the knees, causing the feet to be widely separated when the knees are touching. Up to 15 degrees of valgus is physiologic in children aged 2-6 years, with maximum valgus at age 3-4 years.

History

  • Age of onset (physiologic vs. pathologic)
  • Pain, limp, difficulty walking
  • Family history
  • Nutritional history (rickets)

Inspection (Standing)

  • Gait: observe for awkward waddling, toe-in gait
  • Alignment: observe in both frontal and sagittal planes - knees touch but ankles are apart
  • Skin changes: look for bowing, skin over medial knee
  • Limb length discrepancy: assess pelvic tilt

Measurement (Key Clinical Measure)

  • Intermalleolar Distance (IMD): With the patient standing and medial femoral condyles (knees) touching, measure the distance between the medial malleoli. IMD > 10 cm is pathological and an indication for surgical consideration.
  • Tibiofemoral angle: normally 5-7° of valgus in adults; >10° is pathological
Genu valgum - bilateral knock knees showing intermalleolar distance measurement

Special Tests

  • Assess for compensatory foot changes: secondary pes planus
  • Check for tibial torsion: external tibial torsion often accompanies genu valgum
  • Patellar tracking: assess for lateral patellar subluxation tendency
  • Ligament assessment: medial collateral ligament laxity

Causes to Exclude

  • Renal osteodystrophy (most common pathological cause if bilateral)
  • Osteochondromas
  • Rickets (check metaphyseal flaring, wrist signs)
  • Post-infectious asymmetric tibial overgrowth
Operative indication: children >10 years with IMD >10 cm or angulation >15 degrees

2. PES PLANUS (Flat Foot)

Definition

Loss of the medial longitudinal arch. Can be:
  • Flexible (physiologic in young children, arch reappears on toe standing)
  • Rigid (structural - always flat, may be painful)

History

  • Age, bilateral vs. unilateral
  • Pain (under arch, heel, calf)
  • Family history
  • Any associated neurological symptoms

Inspection

Non-weight-bearing:
  • Observe the arch - is it present when non-weight-bearing?
  • Look for valgus hindfoot (heel tilted outward = hindfoot valgus)
  • Skin calluses over medial midfoot
Weight-bearing:
  • Arch collapses completely
  • "Too many toes sign": viewed from behind, more than 2 toes visible lateral to the heel (due to forefoot abduction and hindfoot valgus)
  • Medial border of foot contacts the ground
Pes planus - flat foot with collapsed medial longitudinal arch and hindfoot valgus

Key Differentiating Tests

  • Jack's toe dorsiflexion (windlass) test: Passively dorsiflexing the big toe - if the arch reconstitutes, it is a flexible flat foot (normal plantar fascia mechanism)
  • Single heel rise test: Ask patient to stand on one leg and rise on tiptoes - in flexible flat foot the heel inverts to varus; in rigid flat foot or tibialis posterior dysfunction, the heel stays in valgus or the patient cannot perform the test
  • Subtalar movement: Assess subtalar joint range of motion - rigid flat foot has restricted subtalar motion

Palpation

  • Tibialis posterior tendon (medial to medial malleolus) - tenderness suggests tibialis posterior tendon dysfunction
  • Plantar fascia origin at calcaneum

Neurological Check

  • Exclude underlying neurological cause (e.g., cerebral palsy, spina bifida)

3. CTEV - Congenital Talipes Equinovarus (Clubfoot)

Definition

CTEV is a complex congenital deformity with 4 components, remembered by the mnemonic CAVE:
  • C - Cavus (high-arched medial longitudinal arch)
  • A - Adductus (forefoot medial deviation)
  • V - Varus (hindfoot inversion/varus)
  • E - Equinus (plantarflexion at ankle, inability to dorsiflex)
CTEV bilateral clubfoot in newborn - classic four deformity components

Clinical Examination at Birth

Inspection:
  • Both feet should be examined systematically
  • Foot is small, with shortened calf muscles
  • Foot turned inward and downward
  • Lateral border of foot facing upward in severe cases
  • Deep skin creases on the medial side of the foot and posteriorly at the ankle
  • Calf muscle hypoplasia (the affected calf is thinner)
4 Components (assess each):
ComponentWhat to Assess
EquinusDorsiflexion of ankle restricted (cannot reach neutral/90°)
VarusHeel inverted inward
AdductusForefoot deviated medially
CavusHigh medial arch - check under the foot
Palpation:
  • Talar head palpable prominently on dorsolateral surface
  • Check for skin crease depth (medial and posterior creases)
  • Assess for bony prominences on lateral foot
Flexibility Assessment:
  • Attempt gentle dorsiflexion and external rotation - documents whether the deformity is correctable (flexible vs. rigid)
  • Document the maximum achievable correction - baseline for Ponseti scoring
Scoring Systems Used Clinically:
  • Pirani Scoring (0-6): Grades 3 hindfoot signs (posterior crease, empty heel, equinus) and 3 midfoot signs (medial crease, curved lateral border, talar head coverage) - score out of 6; higher = more severe
  • Dimeglio Classification: Grades by reducibility of each deformity component (Grades I-IV)
Associated Findings to Check:
  • Hip: examine both hips for developmental dysplasia (DDH) - associated in ~2%
  • Spine: check for neural tube defects (spina bifida - may cause secondary CTEV)
  • Opposite foot: 50% are bilateral
  • Check for arthrogryposis (multiple joint contractures)
  • Neurological: rule out spinal muscular atrophy, meningomyelocele

4. SCOLIOSIS

Definition

An abnormal lateral curvature of the spine, typically with a rotational component. Structural scoliosis has vertebral rotation; postural (non-structural) scoliosis does not.

History

  • Age of onset, progression
  • Pain (unusual in idiopathic scoliosis; red flag if present in a child)
  • Family history
  • Respiratory symptoms (severe curves >70° can impair breathing)
  • Menarcheal status in girls (growth remaining)

Inspection - Patient Undressed, Standing

From behind (posterior view):
  • Shoulder asymmetry (one shoulder higher)
  • Scapular prominence on convex side
  • Waist asymmetry - unequal skin folds
  • Pelvic tilt / limb length discrepancy - must be excluded as a cause of apparent scoliosis
  • Spinal curve - note direction and level (thoracic, thoracolumbar, lumbar)
From the side (lateral view):
  • Assess for kyphosis or lordosis changes - is the sagittal alignment normal?
Skin (critical for secondary scoliosis):
  • Café-au-lait spots + cutaneous neurofibromas + axillary freckling = Neurofibromatosis Type 1
  • Midline hair patches or skin dimples = Spina bifida occulta or tethered cord

Adams Forward Bend Test (KEY TEST)

Ask the patient to bend forward with knees straight and feet together, arms hanging loose, palms facing each other, until the spine is parallel to the floor. The examiner observes from behind.
  • Positive test: Rib hump (posteriorly prominent ribs) on the convex side of the curve - this is due to vertebral rotation causing ribs to rotate backward
  • Loin prominence instead if lumbar curve
  • This test differentiates structural (fixed rotation - hump persists) from postural scoliosis (hump absent)
Adams forward bend test showing right thoracic rib hump in scoliosis

Scoliometer (Angle of Trunk Rotation - ATR)

  • Placed at the apex of the curve during Adams forward bend test
  • ATR >7° warrants radiological evaluation
  • Used to monitor progression without repeated X-rays
Scoliometer measuring ATR during Adams forward bend test

Measurement of Curve (on X-ray - Cobb Angle)

Not a clinical exam finding, but important to know: Cobb angle on standing AP X-ray measures the magnitude of the curve. Curves are classified as:
  • <10°: normal variation
  • 10-25°: mild (observe)
  • 25-40°: moderate (brace)
  • 40-45°: severe (surgical consideration)

Limb Length Assessment

  • Measure true leg length (ASIS to medial malleolus) and apparent leg length (umbilicus/xiphisternum to medial malleolus)
  • LLD causes compensatory spinal tilt that can mimic scoliosis ("functional scoliosis") - a block under the short leg corrects it

Neurological Examination (Mandatory)

Per Bailey and Love's Short Practice of Surgery, neurological examination must include:
  • Abdominal reflexes: absent or asymmetrical reflexes suggest intraspinal pathology (syringomyelia, spinal cord anomaly)
  • Power, tone, reflexes and sensation in upper and lower limbs
  • Gait assessment
  • In kyphosis: also assess sagittal alignment and forward gaze

Quick Comparison Summary

FeatureGenu ValgumPes PlanusCTEVScoliosis
Key measurementIntermalleolar distanceArch height, heel alignmentCAVE components, Pirani scoreCobb angle (X-ray), ATR (scoliometer)
Key clinical testIMD with knees touchingJack's test, single heel riseFlexibility of deformityAdams forward bend test
Pathological thresholdIMD >10 cm, angle >15°Rigid + painfulFixed equinovarusCobb angle >10°
Key associated findingsRickets, renal osteodystrophyTibialis posterior dysfunctionDDH, spina bifidaNeurofibromatosis, LLD

Sources: Miller's Review of Orthopaedics 9th Edition; Bailey and Love's Short Practice of Surgery 28th Edition
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