References

Pauwels F (1976) Biomechanics of the normal and diseased hip. Springer-Verlag, Berlin, Heidelberg, New York 2. Terayama K (1982) Natural process and waiting strategy for treatment of osteoarthritis of the hip (in Japanese). Seikei-Saigai-Geka 25 1-4 3. Ueno R (1982) After reading Natural process and waiting strategy for treatment of osteoarthritis of the hip (in Japanese). Seikei-Saigai-Geka 25 193-195 4. Bombelli R (1976) Osteoarthritis of the hip. Springer-Verlag, Berlin, Heidelberg, New York...

Discussion

Femoral Neck Offset

The clinical and radiographic results of this very young series of challenging cases are certainly encouraging, even though they did not quite match the performance of resurfacing in primary OA patients performed with first-generation bone preparation and cementing techniques. The difference in survivorship results is accountable to this group presenting greater risk factors, and patient selection should play an important role in the success of the procedure with secondary OA patients. However,...

Introduction

Acetabular Rim Fracture Muscles

Residual acetabular dysplasia is known as the most frequent cause of osteoarthritis of the hip, leading to joint destruction in 25 to 50 of cases by the age of 50 years 1 . In the classic pathomorphology, the degeneration starts early with overload of 1 Department of Orthopaedic Surgery, Balgrist University Hospital, Forchstr. 340, CH-8008 Enrich, Switzerland 2 Department of Orthopaedics Surgery, Schulthess Clinic Lengghalde 2, CH-8008, Z rich, Switzerland the anterolateral joint, visible by...

Features of Secondary OA of the

Hip Arthritis

Reviewing the characteristic features of secondary OA caused by developmental dislocation of the hip (DDH) or acetabular dysplasia, we can observe the coexistence of two phases, one being wear and the destructive process on the weight-bearing area, and the other the proliferative and reparative process on the peripheral, non-weight-bearing area. The large capital drop that forms on the posteromedial side seems to come from the biological response of the repair process. Even on the...