Chemically induced avascular necrosis of bone is a well documented entity. Indomethacin is one of the causes of this condition but is often difficult to recognise. Review of the literature shows that only one case of indomethacin induced avascular necrosis has been reported in the English language between 1966 and the present. The case of a young healthy man, who developed avascular necrosis of...

The association of transcervical fractures of the femur with avascular necrosis of the capital fragment was recognised many years ago. Nevertheless several basic questions, such as the incidence ofavascular necrosis, the extent and pattern ofbone death and revascularisation and also the role played by avascular necrosis in non-union of these fractures, remain unanswered. In the hope that a hist...

The current study was conducted to investigate the effects of dietary iron-loaded chitooligosacharide nanoparticles (Fe-CNP) on occurrence of bacterial chondronecrosis with osteomyelitis (BCO) in broiler chickens. Four hundred eighty day-old chicks (Ross 308) were assigned to four treatments with six replicates of 20 birds. All chicks were reared on wire flooring system up to 42 days of age. Th...

We have studied the histological appearances of forty femoral heads with idiopathic avascular necrosis. The characteristic histopathological changes of recurrent necrosis were present in 83 per cent. Recurrent necrosis occurred widely after revascularisation had progressed as far as the subchondral zone. The aetiology of idiopathic avascular necrosis of the femoral head may be a chronic conditi...

This case deals with the avascular necrosis or osteonecrosis of the femoral head in a 41-year-old male presenting to a chiropractor's office. In addition to the clinical picture, diagnostic imaging should be performed to confirm the presence and extent of hip avascular necrosis. Referral to an orthopedic specialist is key and treatment is mainly surgical.

The earliest attempt at classifying avascular necrosis of the femoral head was proposed by Ficat and Arlet in 1964 [2], before the advent of MRI. The purpose of the classification was to provide prognostic insight and compare treatment options. Ficat modified the classification to include invasive testing procedures and a preclinical, preradiographic stage in 1985 [1]. Since then the system has...

stage osteonecrosis of the femoral head (ONFH), the factors normally considered are the progression of the disease and the patient’s age. Although most clinicians agree that the focus, when first treating patients under 50 years of age, should be on preserving the joint, there is significant controversy as to the appropriate procedure in any given case. Core decompression is one of the joint sa...

Chondrosarcomas are the second most common bone sarcomas, accounting for less than 0.5% of all cancers. The treatment plan can be improved by analyzing clinical characteristics and patterns. rarity slow-growing nature this tumour often lead to prolonged symptoms also initial misdiagnosis with avascular necrosis femur, benign lesions like chondroblastoma. reports patient suggested femur head. Hi...

Avascular necrosis of the femoral head (ANFH) is a pathologic process that results from interruption of blood supply to the femur bone resulting in the death of bone cells and collapse of the femoral head. Nontraumatic ANFH continuesto be a significant challenge to orthopedic surgeons. While the exact mechanisms remain elusive, many new insights have emerged from research in the last decade tha...