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Leg Length Discrepancy ICD-10
Leg Length Discrepancy ICD-9
- 736.81 Unequal leg length (acquired)
Leg Length Discrepancy
- proximal femur grows 2mm/yr
- distal femur grows 9mm/yr
- proximal tibia grows 6mm/yr
- distal tibia =grows 4mm/yr
- Mosely graph
- girls generally grow to age 14, boys=16
- distal femur accounts for 37% of total LE growth
- proximal tibia =28% of total LE growth
- LLD<3% not associated c compensatory walking mechanisms
- LLD>5% difficult to compensate(toe walking etc) for
- Leg Length Discrepancyxray
- scanogram=hip,knee,ankle
- orthoroentogram=3films tied together gives leg length and alignment
- Predictiors of LLD: (Paley D, JBJS 2000;82A:1432)
Leg Length Discrepancy Treatment
- shoe lift for <2.5cm
- epiphysiodesis for 2.5-4cm
- lengthening for >4cm
- prosthesis for 30% or more shortening
- Shoe Lift modifications are available from www.orthopedicshoelift.com. 1-888-443-3537.
Leg Length Discrepancy Differential Diagnosis
- Fibular hemimelia
- PFFD
- hemihypertrophy(must U/S abdomin to r/u Wilm's tumor yearly to age 6-8)
Leg Length Discrepancy References
- Moseley CF, ICL 1989;38:325
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