Femoral head fracture is a relatively rare injury which often associates with a poor functional outcome. The surgical approaches for femoral head fracture are a controversial subject in many study reports. Patients and Methods Nineteen patients suffering from femoral head fracture-dislocation of the hip were admitted to Zagazig university hospital. The fractures were classified according to the...

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; ...

Research on avascular necrosis, creeping substitution, mechanics and circulation in relation to the femoral head has led to a better understanding of fracture at the hip. Despite this better knowledge, it has been impossible to solve the problem of the high incidence of avascular necrosis and pseudarthrosis. It seems that a deeper comprehension of the hip problem has given us a “ defeatist atti...

Dislocation of the hip is a critical injury that results from high-energy trauma. This paper describes a case of posterior dislocation of the right hip in a 35-year-old woman with associated ipsilateral femoral head fracture. Initial treatment included reduction of the right hip through posterior approach and fixation of the femoral head fracture with three absorbable screws. After 15-month fol...

The purpose of this study was to assess the effect of timing of large fragment fixation in patients with Pipkin type-I fractures. Patients with Pipkin type-I fractures from the authors' trauma center were prospectively observed between July 2007 and July 2010. Fragments that constituted more than one-fourth of the femoral head were included. Thirty-six patients were equally randomized to underg...

Osteonecrosis or avascular necrosis (AVN) is a pathologic process that results from a critical decrease of blood supply to the bone and elevated intraosseous pressure [1]. While the pathogenic process is not clear, it is believed that osteonecrosis is the final common pathway of traumatic and non-traumatic insults and that it impairs blood circulation to the femoral head. Subsequently, interrup...

We evaluated 34 total hip arthroplasties (THA) for avascular necrosis of the femoral head in 26 patients who were younger than 40 years at the time of the index operation. The average age at the time of THA was 283 (17-38) years. The mean follow-up was 10.9 (5-19) years. We used 6 cemented and 28 cementless acetabular components and a cemented polished tapered stem in all hips. The mean Charnle...

We have reviewed 54 hips in 46 patients from 2 to 14 years after a joint-preserving operation for idiopathic avascular necrosis of the femoral head. The choice between core decompression (17 hips), bone grafting (18), rotation osteotomy (15) or varus osteotomy (4) was determined by the stage and location of the area of necrosis. The overall success rate was unexpectedly low at 60%. Core decompr...

INTRODUCTION With varying and uncertain etiologies, avascular necrosis (AVN) of the femoral head is a degenerative disease that usually leads to hip joint destruction. The pathology of osteonecrosis is initiated by an ischemic event resulting in bone and marrow necrosis, inflammation, infarction of the lesion by fibrous scar tissue, stress fractures in the weakened subchondral bone, and collaps...