Key result
Leg length discrepancy occurred in 33 of 261 patients (average 2.51 cm) and was significantly more common and severe in Herring group C and after varus osteotomy.
Why the study?
Does the type of treatment or disease severity correlate with leg length discrepancy in patients with Legg-Calve-Perthes disease?
Population
261 patients with unilateral Legg-Calve-Perthes disease who had reached skeletal maturity at last follow-up
Design
Cohort
Follow-up
until skeletal maturity
Authors
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Monitoring for LLD warranted in Herring C Perthes and post-varus osteotomy; leaves open whether surgery independently worsens growth arrest.
Observational (n=261)
Does the type of treatment or disease severity correlate with leg length discrepancy in patients with Legg-Calve-Perthes disease?
In Legg-Calve-Perthes disease, residual leg length discrepancy depends on disease severity and growth arrest, with varus osteotomy producing more significant shortening.
Grzegorzewski et al. (2005) conducted an observational in Legg-Calve-Perthes disease (n=261). Disease severity (Herring classification) and treatment type (e.g., varus osteotomy) vs. Less severe disease or other containment methods was evaluated on Incidence and severity of leg length discrepancy (LLD). Leg length discrepancy occurred in 33 of 261 patients (average 2.51 cm) and was significantly more common and severe in Herring group C and after varus osteotomy.
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