The authors have used bone endoscopy (medulloscopy) to improve the accuracy of the conventional technique for core decompression and grafting in 36 hips with avascular necrosis of the femoral head. Endocopy was found to facilitate debridement of the necrotic bone and to decrease the risk of perforation of the cartilage during debridement. The endoscopy-assisted technique failed, however, to imp...

Avascular osteonecrosis of the femoral head (ONFH) is one causes hip pain that clinicians need to know about. In many cases, it a fortuitous discovery when pelvic X-rays performed for another reason. other reveals disease. For rheumatologist, major part job look cause. An etiology can be found ONFH in about 70% cases. Some them are evident and context give diagnosis (corticosteroids, alcohol ab...

Osteonecrosis of the jaw has received a great deal of attention in the past few years. The earliest case reports claimed that the only time it ever occurred was as a complication of therapy with bisphosphonates and that both oral and intravenous bisphosphonates were implicated (1). These reports led to use of terms such as BRONJ (bisphosphonate-related osteonecrosis of the jaw). The speculation...

Osteonecrosis, also known as avascular necrosis or aseptic necrosis, refers to ischemic death of the cellular constituents of bone and marrow when it occurs in the epiphyseal or subarticular region. The incidence of osteonecrosis may be increased by as much as 100-fold in HIV-infected persons relative to the general population,1 making this condition an increasingly important cause of morbidity...

The purpose of this study was to investigate the preventive effect of ethyl 3,4-dihydroxybenzoate(EDHB) on steroid-associated femoral head osteonecrosis(ONFH) in a rabbit model. New Zealand white rabbits were randomly divided into two groups (prevention group and model group), each containing 24 rabbits. Osteonecrosis was induced by lipopolysaccharide(LPS) combined with methylprednisolone(MPS)....

Kienbock's disease, which is an idiopathic osteonecrosis and collapse of the lunate bone, is an uncommon disease in children. This report describes a case of an 11-year-old girl, who presented with avascular necrosis of lunate bone confirmed by radiographic and magnetic resonance imaging evidence. After a short period of casting, the case was fully recovered within one year. The signal change w...

The treatments of avascular osteonecrosis (AVN) include both conservative and surgical methods which are dependent on the stage and progression of the disease. The vasoactive-prostaglandin-analogue iloprost (PGI2) has been utilized in several areas of medicine and recently has been used for the treatment of AVN. A total of 108 patients with 136 osteonecrosis of different joints, etiology and se...

BACKGROUND Osteonecrosis (avascular necrosis) has been infrequently reported in HIV-infected patients. It is not known whether HIV itself is an independent risk factor for osteonecrosis. METHODS We identified 25 patients with osteonecrosis from 1984 to 1999 from a large county teaching hospital and two large practices in Dallas County that specialize in HIV-disease related therapy. A retrospe...

Although treatment of children infected with HIV with protease inhibitors has improved the survival of these patients, various adverse side effects have been reported, including metabolic abnormalities, such as hyperlipidaemia. We describe a case of hip osteonecrosis in an adolescent with AIDS who was being treated with protease inhibitors. There is a possible relation with hyperlipidemia. F.M....

INTRODUCTION Osteonecrosis (avascular necrosis) is known to be caused by high-dose corticosteroid therapy, alcoholism and rarely by infections. However, a tubercular etiology of this condition is very rare. A review of the literature yielded only a few cases of polyarticular tuberculosis with osteonecrosis in immunosuppressed individuals. No case of monoarticular tubercular osteonecrosis diagno...