BACKGROUND Osteoporosis is a metabolic disorder characterized by a reduction in bone mass and deterioration in the microarchitectural structure of the bone, leading to a higher risk for spontaneous and fragility fractures.The main aim was to study the differences between human bone from osteoporotic and osteoarthritic patients about gene expression (osteogenesis and apoptosis), bone mineral den...

Impaction allografting is an attractive procedure for the treatment of failed total hip replacements. The graft-cement-host bone interface after impaction allografting has not been characterized, although it is a potential site of subsidence for this type of revision total hip reconstruction. In six human cadaveric femurs, the cancellous bone was removed proximally and local diaphyseal lytic de...

BACKGROUND The number of patients undergoing hip arthroplasty revision is constantly growing. Especially, complex problem is extensive loss of bone stock and pelvic discontinuity that requires reconstruction. CASE REPORT The paper presented a 50-year old patient, who ten years ago underwent a total cement artrhroplasty of the left hip. A year after the primary operation the patient had diffic...

The most reliable methods of determining sex from skeletal remains are based on examination of the hip bone. However, hip bone specimens may be incomplete or fragmented. The purpose of this study was to identify the best-preserved regions of the hip bone with the greatest diagnostic value for sex determination. The Bruzek method of visual sex determination using 11 anatomic hip bone features wa...

introduction : acute lymphoblastic leukemia (all) and non-hodgkin's lymphoma (nhl) are the most common malignancies in children and adolescents. therapies such as corticosteroids, cytotoxic and radiotherapy will have harmful effect on bone mineral density (bmd) which can lead to increased possibility of osteoporosis and pathological fractures. subjects and methods: this 3-year cross-sectional s...

Introduction: Acute lymphoblastic leukemia (ALL) and Non-Hodgkin's Lymphoma (NHL) are the most common childhood and adolescence malignancy respectively.Due to the increasing survival of these children, today late side effects of treatments are important. Therapies such as corticosteroids, cytotoxic and radiotherapy effect on bone density and put the child at risk of osteoporosis and pathologi...

This is a case report involving a single case with severe bone and soft tissue destruction in a young male patient with a 10-year-metal on-metal total hip arthroplasty. Following complete aseptic erosion of the affected hip greater trochanter and abductor muscles, the hip was revised for recurrent instability. Histological examination of the patient's periprosthetic tissues, serological studies...

The centre of rotation of the hip joint is needed for an accurate simulation of the joint performance in many applications such as pre-operative planning simulation, human gait analysis, and hip joint disorders. In human movement analysis, the hip joint center can be estimated using a functional method based on the relative motion of the femur to pelvis measured using reflective markers attache...

It is estimated that osteoporosis is responsible for about 300,000 hip fractures per year in the United States. Effective prevention of these fractures has been demonstrated using bisphosphonates. However, their mechanism of action has not been elucidated. Furthermore, the precise effect of bisphosphonates on the femoral neck and surrounding areas has never been studied. We are interested in es...

Purpose: This study aims to analyze the shape and morphometric features of obturator foramen (OF) in dry human bones.
 Methods: Forty-six (Right:15, Left:31) coxal bones were evaluated. Photographs samples for measurements taken using a transparent osteometric box (TOB) designed this study. Horizontal vertical diameters OF measured according two different principles. Measurements determine...