Pelvic Actinomyces israelii abscess: a differential diagnosis of a pelvic mass.

A 52-year-old woman was admitted to our district general hospital, with a rapidly growing, increasingly tender mass in the right iliac fossa, difficulty mobilising with a fixed flexion deformity of the right hip and 15 kg weight loss in 5 months. Her 8-month long surgical history for investigation of a pelvic mass stemmed from the removal of an intrauterine device. It included radiological and surgical investigations.

Healos and bone marrow aspirate used for lumbar spine fusion: a case controlled study comparing healos with autograft.

Study Design: A prospective case controlled study to compare the clinical and radiographic performance of Healos soaked in bone marrow aspirate (BMA) to iliac crest autograft when used in lumbar spinal fusion.

Objective: To evaluate the null hypothesis: Healos used with BMA is not an effective alternative to iliac crest autograft in lumbar spine fusions.

Summary Of Background Data: Healos (a Type 1 collagen/hydroxyapatite matrix) is osteoconductive and when soaked for at least 20 minutes in BMA becomes osteoinductive.

Avascular necrosis of the femoral head after surgery for lumbar spinal stenosis.

Study Design: Case report.

Objective: To report a previously undescribed complication of lumbar spinal surgery under prolonged hypotensive anesthesia.

Background Data: Avascular necrosis of bone most commonly affects the femoral head.