BACKGROUND Because of the high complication rate of anatomical reconstruction after periacetabular resection, the strategy of resection alone has been revisited. However, in terms of complications and functional outcome, whether resection hip arthroplasty (RHA) shows a superior result to that of pelvic ring reconstruction remains controversial. METHODS We compared 24 RHAs and 16 pasteurized a...

Introduction Lack of primary stability has been regarded as a major cause for implant loosening in total hip arthroplasty. For a cementless press-fit acetabular cup, primary stability is achieved by inserting an oversized component into an under-reamed acetabulum. Two features that result from the press-fitting process are – 1) pre-stress due to the difference in the radii of the cup and the re...

BACKGROUND A contributory factor to hip osteoarthritis (OA) is abnormal cartilage mechanics. Acetabular retroversion, a version deformity of the acetabulum, has been postulated to cause OA via decreased posterior contact area and increased posterior contact stress. Although cartilage mechanics cannot be measured directly in vivo to evaluate the causes of OA, they can be predicted using finite e...

We have assessed the long-term results of 292 cemented total hip replacements which were performed for developmental dysplasia of the hip in 206 patients. The mean age of the patients at operation was 42.6 years (15.9 to 79.5) and most (202) were women. The severity of dysplasia was graded according to both the Crowe and the Hartofilakidis classifications. A 22.25-mm Charnley head was always us...

BACKGROUND Traumatic bilateral hip dislocation is a rare condition. Anterior shoulder dislocation combined with this condition is even a rare occurrence. A 57-year-old man had bilateral asymmetric hip dislocation with a posterior wall fracture of the left acetabulum associated with right shoulder anterior dislocation caused by falling down from a cherry tree. Traumatic hip dislocation and anter...

PURPOSE To assess the clinical results of pelvic reconstruction using a saddle prosthesis following limb salvage operation for periacetabular tumour. METHODS 12 patients with sarcoma and 4 with metastasis involving the pelvis were treated using the saddle prosthesis between 1995 and 2003 inclusive. Wide pelvic resection was performed for all patients with sarcoma and one with a metastatic les...

Only a limited number of patients that suffered from Legg-Calvé-Perthes' disease (LCPD) develop pain in early adulthood. Classical hinged abduction is well known and is thought to be responsible for secondary lateral insufficiency of the acetabulum, which may become painful. Another possible explanation, which was put forward more recently, is anterior femoroacetabular impingement. We collected...

BACKGROUND The aim of this study was to evaluate the functional and clinical results of early total hip arthroplasty performed to treat acetabulum fracture. METHODS Evaluation of 17 patients who were diagnosed with acetabulum fracture and treated with early total hip arthroplasty between January 2008 and October 2013 was performed. In all, 14 patients were male, and 3 were female, with mean a...

We analysed the incidence of avascular necrosis in 101 hips of 90 infants with congenital dislocation treated with Pavlik harness and followed up for more than one year. Using ultrasonography in the flexed-abducted position the hips were classified as type A when the femora head was displaced posteriorly, but within the socket and making contact with the posterior inner wall of the acetabulum; ...

INTRODUCTION Osteoid osteoma of the acetabulum is a rare orthopedic condition. Only few cases are reported in the literature. Diagnosis of such pathology can sometimes be challenging. Arthroscopic excision of the lesion seems to be a useful minimally invasive treatment option. We report a case of osteoid osteoma of the acetabulum in an adult aged 25 years old treated arthroscopically. CASE RE...