Abstract
Introduction The consequence of discongrency of the hip joint may be early, secondary osteoarthritis of the hip joint, that leads to important limits in movement abilities of an individual. The deficit of the femoral head coverage can be rather easily corrected, but only until the growth and maturation of the pelvis is completed. Redirection of the acetabular fragment can be performed by use of the periacetabular osteotomy according to Ganz. This type of the osteotomy is mainly used in the treatment of the acetabular displasia in patients with closed Y cartilage, but also in the treatment of the osteoarthritis of the hip joint. The Aim of the study was to present our early results of treatment of the patients with the secondary osteoarthritis of the hip joint by use of the periacetabular osteotomy according to Ganz.
Material and Methods. Our material consisted of 64 patients, 72 hip joints, operated on between 1998–2004. 20 patients (24 hip joints) were selected from this group. In these 20 patients the indication for the treatment was not only the acetabular displasia, but also osteoarthritis of the hip joint. Our group consisted of 17 female and 3 male. In 4 cases the both hip joints were affected. The age of the patients was 26–44 years, average 34 years. The observation period was from 4 months to 6 years, average 2,5 years. The most important clinical symptom was the groin pain on the rest or while flexing the hip joint with internal rotation and adduction. The radiological symptoms in patients before the operation were: decentration, narrowing of the articular space, cysts beyond the sclerotic zone, fatigue fractures of the acetabular edge.
Results. In all the patients, except of one, the pain disappeared. Abduction and internal rotation in the hip joint increased, but flexion decreased. The Wiberg’s angle increased from 10–15° to 25–40°, and the interior Wiberg’s angle from 10–0° to 15–20°. During follow up we observed remodeling of the cysts. The treatment was subjectively assessed by the patients as very good.
Conclusion. The use of the periacetabular osteotomy occording to Ganz is the operation that corrects the hip joint. But in some cases of the osteoarthritis of the hip joint it allows to improve the quality of life and we hope may also delay the arthroplasty in the young age.
Theses abstracts were prepared by Professor Roger Lemaire. Correspondence should be addressed to EFORT Central Office, Freihofstrasse 22, CH-8700 Küsnacht, Switzerland.
