Core decompression for avascular necrosis (AVN) of the femoral head continues to be a controversial procedure. Meta-analysis techniques were employed to identify 22 studies with a single surgical core decompression technique. A similar procedure identified eight studies that treated patients conservatively. The success rates for core decompression were 84%, 63%, and 29% for Steinberg stages I, ...

Automatic extraction of surface models of both pelvis and proximal femur of a hip joint from 3D CT images is an important and challenging task for computer assisted diagnosis and planning of periacetabular osteotomy (PAO). Due to the narrowness of hip joint space, the adjacent surfaces of the acetabulum and the femoral head are hardly distinguishable from each other in the target CT images. Thi...

The recent discovery of early dinosauromorphs from North America demonstrates that they were contemporaries with dinosaurs and other basal archosaurs during a substantial portion of the Late Triassic Period. Hindlimb material (femora, tibiae, a fibula, astragalocalcanea, and phalanges) of Dromomeron romeri, a non-dinosauriform dinosauromorph from the Petrified Forest Member of the Chinle Format...

Conventional treatment of mild slipped capital femoral epiphysis consists of fixation in situ with wires or screws. Recent contributions to the literature suggest that even a mild slip may lead to early damage of the acetabular labrum and adjacent cartilage by abutment of a prominent femoral metaphysis. It has been suggested that the appropriate treatment in mild slipped capital femoral epiphys...

Preservation of the tissues surrounding the hip may improve hip joint stability and facilitate recovery. A new technique for performing total hip arthroplasty with a superior capsulotomy allows for maximal preservation of the hip joint capsule and surrounding muscles. Using this technique, the gluteus medius and minimus are reflected anteriorly and the piriformis is reflected posteriorly. The s...

Introduction The hamstring muscles are frequently implicated in posterior thigh pain due to strains. The hamstring muscles are the three most superficial muscles that span the posterior thigh, and consist of the biceps femoris, semitendinosus, and semimembranosus. The long head of biceps femoris originates from the inferiomedial aspect of the ischial tuberosity and inserts into the head of the ...

Insufficient blood flow to the proximal femur causes osteonecrosis of femoral head, which is known as head avascular necrosis (AVN). The underlying pathogenesis unclear, risk factors are likely influence microcirculation somewhat, but this has not been confirmed by research. In more than 75% cases, affects head. Methods: From August 2019 March 2022, 4 patients with FBAN were analyzed retrospect...

UNLABELLED Quantitative information about bone tissue-level loading is essential for understanding bone mechanical behavior. We made microfinite element models of a healthy and osteoporotic human femur and found that tissue-level strains in the osteoporotic femoral head were 70% higher on average and less uniformly distributed than those in the healthy one. INTRODUCTION Bone tissue stresses a...

The adaptive bone remodeling phenomenon in the femur before and after prosthetic total hip joint replacement (THR) was investigated using the three dimensional finite element method. A normal hip joint model which composed of the proximal femur and the pelvic bone including femoral head and acetabular was constructed three-dimensionally by our method reported previously. The simulation model wa...

Osteochondromas also called exostosis are commonest benign bone tumours. Traditionally Osteochondroma considered as developmental malformations rather than true neoplasms and thought to formed inside the periosteum due separation of small epiphyseal growth plate cartilage. But recent studies suggested it’s relation with mutation in gene exotoxin 1 so now they neoplasm. The lesions consist a bon...