Of ninety-five patients with corticosteroid-induced avascular necrosis of bone, ninety-one had involvement of the femoral head. The risk of developing this lesion appeared to be correlated with the total steroid dose. Forty-nine patients demonstrated a subchondral osteolytic defect which healed without proceeding to collapse. Four femoral heads in four patients developed sequestration, resembli...

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...

Twenty-nine patients with avascular necrosis of the femoral head after injury have been treated by operation. Multiple drilling of the femoral head was performed, necrotic bone removed and a muscle-pedicle bone graft implanted into the head and neck of the femur. In 17 of the patients the necrosis was associated with an un-united femoral neck fracture, in 11 it occurred after the fracture had u...

BACKGROUND & PURPOSE Skeletal stem cells (SSCs) and impaction bone grafting (IBG) can be combined to produce a mechanically stable living bone composite. This novel strategy has been translated to the treatment of avascular necrosis of the femoral head. Surgical technique, clinical follow-up and retrieval analysis data of this translational case series is presented. METHODS SSCs and milled al...

BACKGROUND Prognosis of traumatic osteonecrosis of femoral head in children is poor for either conservative treatment or surgical intervention. Intravenous bisphosphonate is an expecting medication to reduce femoral head resorption and to prevent femoral head collapse after traumatic osteonecrosis. This mechanism will reduce development of osteoarthritis and disability in the future. OBJECTIV...

The pattern of pathologies affecting the hips of local Chinese patients is very different from that in western countries. Although there is no data on the actual incidence of hip disease in Hong Kong, one local study involving 647 cases of total hip replacement showed that AVNFH was the commonest cause, contributing to 45.6% of all cases of hip Abstract: Avascular necrosis of femoral head (AVNF...

A 51-year-old man presented to an urgent care facility 2 weeks after onset of left lateral hip and buttock pain. Radiographs were noncontributory. An orthopaedist referred him to physical therapy, but due to the worsening clinical presentation, he was referred back to the orthopaedist for additional evaluation. Magnetic resonance imaging was ordered and demonstrated abnormal femoral head and ac...

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...

Two patients are described, each with a fracture-dislocation of the hip combined with a fracture of the neck of the same femur. Open reduction combined with internal fixation was performed in both cases. Eight years later one patient had developed avascular necrosis of the femoral head; no signs of avascular necrosis or associated arthritis have appeared in the other patient after four years. A...