We made a prospective study of 111 children with acute hip pain to assess whether ultrasound can replace traditional radiography. An effusion was diagnosed in 71% by ultrasound but in only 15% by radiography. This effusion persisted for a mean of nine days; symptoms lasted for five days. Two patients found to have Perthes' disease had longer-lasting effusion and symptoms. Patients without an ef...

INTRODUCTOIN: Legg-Calve-Perthes disease (LCPD) is a common juvenile form of ischemic osteonecrosis of the femoral head that affects children between the ages of 2 to 14 years and has the attack rate of 1 in 740 boys and 1 in 3700 girls. LCPD is due to blood supply disruption to the femoral head. Ischemic osteonecrosis of the femoral head remains one of the most challenging conditions to treat ...

Femoral varus osteotomy (FVO) has been widely used in the surgical treatment of Legg-Calve-Perthes disease (LCPD). Axer in 1965 reviewed FVO as a treatment of LCPD and reported a very favorable results comparing with those observed after conservative treatment. Since then, many authors have demonstrated that it can prevent femoral head deformity and restore spherical congruity, provided that th...

INTRODUCTION: No effective non-operative treatments are available for Perthes disease. We have previously reported significant improvement in outcome in traumatic osteonecrosis in growing rats by intervention with zoledronic acid (ZA), a potent third generation bisphosphonate. In this study we examine the effect of ZA on a model of spontaneous osteonecrosis in growing rats. We hypothesized that...

PERTHES' disease is a condition affecting children's hips in which the upper femoral epiphysis apparently becomes avascular and then revascularises over the next few years. We have undertaken a long term follow-up of patients with Perthes' disease to assess the outcome of the disease process over a long period of time with regard to the clinical condition of the hip. Most of the recent studies ...

Heritable thrombophilic disorders have been proposed as one of the causes for Legg-Calvé-Perthes disease. A total of 62 patients diagnosed with this disease between 1988 and 1997 and 50 controls were screened for thrombophilia. The incidence and relationship of thrombophilia to the severity of the disease were evaluated. One patient and none of the controls had protein S deficiency. One of the ...

OBJECTIVE The aim of this study was to determine the intra and interobserver concordance rates of the Waldenström, Catterall and Herring classifications for Legg-Calvé-Perthes disease. METHODS One hundred radiographs of the pelvis in anteroposterior and Lauenstein views, from patients with this disease, were selected. The radiographs were classified by four physicians with different levels of...

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...