Bilateral Simultaneous Atypical Femoral Fracture: A Case Report

We report a rare case of bilateral subtrochanteric femoral fracture related to prolonged treatment with Alendronate. Introduction: Bisphosphonates are the most common drugs used for treatment of osteoporosis and prevention of the risk of osteoporosis-related fractures. Atypical femoral fractures (AFF) have been reported in patients who have been on long term treatment with bisphosphonates especially Alendronate.  Case Report: our case was a 68- year- old woman who sustained bilateral subtrochanteric femoral fracture after a simple falling down. She had a past medical history of osteoporosis and had been on treatment with alendronate for 5 years. Radiographs showed bilateral fractures in femur subtrochanteric area. We decided to use double plating technique and we used angled blade plate and locking plate (LCP). Alendronate was discontinued and Teriparatide was started. Discussion: Careful evaluation of hip or thigh pain in patients who are on prolonged courses of bisphosphonates is essential. Our method of fixation with double plating can be used in patients with poor bone quality.