Surgical hip dislocation according to Ganz for excision of osteochondromas in patients with multiple hereditary exostoses

Abstract

When daily function and activities are affected, resection of osteochondromas of the proximal femur according to Ganz is indicated to significantly improve quality of life.

Total Hip Arthroplasty for Secondary Coxarthrosis in Patients with Hereditary Multiple Exostoses: Minimum 5-Year Follow-up Results and Surgical Considerations

“…Involvement of the proximal femur in HME is relatively common, with a reported incidence of 30% to 90%, and unlike other superficial joints, hip osteochondromas are deep-seated and hardly palpated in the early decades of life. 2,8,18,19) At the time of diagnosis, bony deformities and early OA are often present. 2,8,9) Although recent papers have reported a less common incidence of acetabular dysplasia, approximately 25% of patients with HME in the hip joint had various degrees of coxa valga and acetabular dysplasia.…”

“…2,8,18,19) At the time of diagnosis, bony deformities and early OA are often present. 2,8,9) Although recent papers have reported a less common incidence of acetabular dysplasia, approximately 25% of patients with HME in the hip joint had various degrees of coxa valga and acetabular dysplasia. 20,21) These skeletal dysplasias, along with the exophytic bone mass itself, may induce subluxation of the femoral head.…”

“…The proximal femur is also reported to be involved commonly, with an approximate prevalence of 30% to 90%. 8) Compared to lesions occurring at the superficial joints, such as the knee, shoulder, or elbow, lesions growing around the hip joint rarely cause hip pain or other symptoms in younger ages. Hip joint osteochondromas usually present with deformities and premature osteoarthritis (OA).…”

“…Hip joint osteochondromas usually present with deformities and premature osteoarthritis (OA). 2,8,9) Moreover, patient's symptoms may differ depending on the location of the lesion. Lesions growing in the lateral aspect of the femur usually cause pain or discomfort but lesions in the medial side of the proximal femur or near the acetabulum may alter the normal hip anatomy, causing coxa valga, acetabular dysplasia, and subluxation of the femoral head.…”

Labral reconstruction with tendon allograft: histological findings show revascularization at 8 weeks from implantation

“…In fact, the incidence has been described to be 0.05% in one series [25], and 0.06% in another series [26]. Both series of patients managed by the group of Ganz.…”