Open-wedge osteotomy of the lateral femoral condyle for extensor mechanism instability.

Objective: To achieve extensor mechanism stability in postpatellectomy patients by elevating the lateral femoral condyle, thus creating a deeper trochlear groove.

Indications: Instability of the quadriceps tendon after patellectomy and other realignment interventions, including but not limited to the release of the lateral patellofemoral ligaments, advancement of the vastus medialis obliquus muscle and, in some cases, transfer of the tibial tubercle. Stabilization of a normal dislocating patella in presence of a hypoplastic lateral femoral condyle.

Intertrochanteric osteotomy in young adults for sequelae of Legg-Calvé-Perthes' disease--a long term follow-up.

Between 1974 and 1999 we performed 15 intertrochanteric osteotomies in 14 patients with a painful hip secondary to Legg-Calvé-Perthes' disease. In seven patients, the osteotomy was combined with advancement of the greater trochanter, acetabular roof plasty, or both. One patient died 5 years after the osteotomy and one patient was lost to follow-up.