CONTEXT Stress fractures are common injuries in athletes, often difficult to diagnose. A stress fracture is a fatigue-induced fracture of bone caused by repeated applications of stress over time. EVIDENCE ACQUISITION PubMed articles published from 1974 to January 2012. RESULTS Intrinsic and extrinsic factors may predict the risk of stress fractures in athletes, including bone health, traini...

Both genetic and environmental factors are known to influence the structure of bone, contributing to its mechanical behavior during, and adaptive response to, loading. We introduce a novel approach to simultaneously address the genetically mediated, exercise-related effects on bone morphometrics and strength, using mice that had been selectively bred for high levels of voluntary wheel running (...

results from a total of 319 patients, 78% (n = 249) were female and 22% (n = 70) were male, with the mean age of 83.6 years. seventeen percent of the patients suffered from heart failure, 23% from diabetes, and 19% from renal insufficiency. time to surgery averaged one day postinjury. average operative time skin-to-skin was 50 minutes. seventy-three percent of the patients could mobilize indepe...

INTRODUCTION Stress fracture of the clavicle is a rare entity. It can manifest itself with an atypical shoulder pain. The clavicle is vulnerable to pathological fractures from several causes such as neoplasm, infection and rarely metabolic bone disease. CASE PRESENTATION We report a case of a bone insufficiency fracture of the clavicle, in a 67-year-old Moroccan woman patient with several ris...

hip dislocation occurs when the femur does not break and the force is transmitted towards the hip joint leading to a posterior dislocation of the femoral head with or without posterior acetabular fracture. we present the case of a 26 year old patient involved in motor vehicle accident. clinical and imaging (radiography, ct) examination revealed an intertrochanteric fracture associated with ipsi...

legg-calvé-perthes disease (lcpd) is an idiopathic osteonecrosis of the femoral head with variable complications and resultant deformity of the femoral head and osteoarthritis. suggested risk factors are acetabular retroversion, obesity, latitude, hyperactivity, and coagulopathy. the most commonly applied classification is based on radiolucency in the lateral pillar of the femoral head, which i...

Insufficiency fracture is a type of stress fracture, which is the result of normal stresses on abnormal bone. Postmenopausal osteoporosis is the most common cause of insufficiency fractures. An early diagnosis is best made with a bone scan or magnetic resonance imaging, as radiographs may initially appear normal. Insufficiency fractures of the lower leg and ankle are less common. Furthermore, r...

Ipsilateral fractures of the femoral neck and trochanter are uncommon. We report a 30-year-old man with a T-shaped fracture separating the trochanter and neck from the head. He underwent osteosynthesis using a dynamic compression plate, screws, and pins. Bone union occurred 4 months postoperatively. At the one-year follow-up, the patient was free of pain and had no evidence of avascular necrosi...

Hip resurfacing is a popular treatment for osteoarthritis in young, active patients. Previous studies have shown that occasional failures--femoral neck fracture and implant loosening, possibly associated with bone adaptation--are affected by prosthesis sizing and positioning, in addition to patient and surgical factors. With the aim of improving tolerance to surgical variation, finite element m...