OBJECTIVE To compare the risk of jaw osteonecrosis after intravenous (IV) bisphosphonate administered to patients with cancer vs patients without cancer. PATIENTS AND METHODS We conducted a retrospective cohort study of a 5% national sample of Medicare patients administered IV bisphosphonate from January 1, 2008, through December 31, 2013, for cancer vs noncancer indications. Probable jaw ost...

A relationship between the development of osteonecrosis of the femoral head and systemic corticosteroids has been well established in the literature, particularly in adults. However, the link between osteonecrosis and inhaled corticosteroids is less researched and understood. We report an usual case report of a 10-year-old male who developed ipsilateral femoral head osteonecrosis after long-ter...

An increase in the incidence of abnormalities on bone and mineral metabolism (osteopenia/osteoporosis) and the development of osteonecrosis has been observed in patients with acquired immunodeficiency syndrome (AIDS). Two cases of osteonecrosis in patients with AIDS are reported. Both patients were receiving highly active antiretroviral therapy (HAART) and presented with one or more known risk ...

Avascular osteonecrosis of femoral head causes severe musculoskeletal disability. There is not standard treatment to cure avascular osteonecrosis. Recently, cell therapy using bone marrow stromal cells has begun for this disease.

BACKGROUND The present study aimed to determine the indications for free vascularized fibular grafting for the treatment of osteonecrosis of the femoral head. METHODS Seventy-one hips (60 patients) were clinically followed for a minimum of 3 years. Average follow-up period was 7 years. Etiologies were alcohol abuse in 31 hips, steroid use in 27, idiopathic in 7 and trauma in 6. Preoperative s...

while traditionally associated with radiation therapy for head and neck cancer, osteonecrosis of the jaw has recently been described mainly in breast cancer and multiple myeloma patients undergoing long-term intravenous bisphosphonate treatment [1, 2, 3, 4, 5, 6, 7, 8, 9, 10,11, 12, 13, 14, 15]. Bisphosphonates are used to treat bone metastases, as they decrease bone resorption, primarily throu...

We investigated the role of programmed necrosis (necroptosis), a newly recognized form of cell necrosis that has been implicated in the development of steroid-induced osteonecrosis. We used an osteonecrosis model in which 30 Japanese white rabbits each weighing 3.5kg were injected once with methylprednisolone at 20 mg/kg body weight into the right gluteal muscle. Ten animals killed 14 days ther...

Knee specimens of two osteoporotic patients who underwent unilateral knee arthroplasty for suspected osteonecrosis of the knee were examined histologically. Preoperative findings of magnetic resonance images in both patients were consistent with the diagnosis of osteonecrosis of the medial femoral condyles, although plain X-rays showed minimal degenerative changes. In both patients, preoperativ...

Osteonecrosis of the knee comprises two separate disorders, primary spontaneous osteonecrosis which is often a self-limiting condition and secondary osteonecrosis which is associated with risk factors and a poor prognosis. In a series of 61 knees (38 patients) we analysed secondary osteonecrosis of the knee treated by a new technique using multiple small percutaneous 3 mm drillings. Total knee ...