Comparison of subtrochanteric varus osteotomy and shelf acetabuloplasty in fragmentation-stage (Waldenström stage II) Legg-Calvé-Perthes disease: a prospective randomized study.
Hazem Abd El-Hameed, Karim Ibrahim Okasha, Mohamed Mahmoud Hegazy et al.
✦ AI-curated · Sources linked
In 30 seconds
This randomized controlled trial compared subtrochanteric femoral varus osteotomy (STVO) and shelf acetabuloplasty in 32 children with fragmentation-stage Legg-Calvé-Perthes disease. Both procedures showed significant clinical improvement, with 81.2% achieving good outcomes. However, STVO was associated with a higher incidence of clinically significant leg length discrepancy (43.8%) compared to shelf acetabuloplasty, which had none.
Key findings
- Both STVO and shelf acetabuloplasty achieved good clinical outcomes in 81.2% of hips.
- Clinically significant leg length discrepancy occurred in 43.8% of STVO patients, but none in the shelf group.
- Mean center-edge angle increased significantly in both groups, indicating improved femoral head coverage.
- No statistically significant differences were found between the two groups after adjusting for baseline values.
Why it matters
Understanding the comparative outcomes of these surgical options is crucial for clinicians managing children with Legg-Calvé-Perthes disease, particularly regarding the risk of leg length discrepancies and overall hip containment.