title: Atypical femoral fracture following zoledronic acid treatment.
abstract: A 68-year-old female patient admitted to our clinic with right anterior thigh pain ongoing for six months and which increased in last two months. The patient had no trauma history. The patient had been followed-up for 15 years because of osteoporosis and administrated alendronate and ibandronate treatment for 10 years. Patient had three shots of zoledronate once a year during the last three years. Her pain was increasing when she was walking. Physical examination revealed pain in her right thigh. Radiogram showed thickened lateral cortex of the subtrochanteric area. Magnetic resonance imaging also showed thickening and edema of the same area. These images were correlated with atypical fracture in right femoral subthrochanteric zone. Dual energy X-ray absorptiometry revealed that T score was -3.3 in lumbar region and -2.5 in femoral neck. Zoledronate treatment was ended. Prophylactic surgical fixation was performed with titanium elastic nails.
authors.affiliation: Department of Orthopedics and Traumatology, Medicine Faculty of Gazi University, 06500 Beşevler, Ankara, Turkey. baybarsataoglu@hotmail.com.
authors.forename: Baybars
authors.initials: B
authors.lastname: Ataoğlu
authors.forename: Ahmet Yiğit
authors.initials: AY
authors.lastname: Kaptan
authors.forename: Toygun Kağan
authors.initials: TK
authors.lastname: Eren
authors.forename: Ali Ekber
authors.initials: AE
authors.lastname: Yapar
authors.forename: Ahmet Fırat
authors.initials: AF
authors.lastname: Berkay
mesh_terms: D015502:Absorptiometry, Photon / Q000379:methods; D000368:Aged; D019386:Alendronate / Q000008:administration & dosage / Q000009:adverse effects; D050071:Bone Density Conservation Agents / Q000008:administration & dosage / Q000009:adverse effects; D004164:Diphosphonates / Q000008:administration & dosage / Q000009:adverse effects; D004359:Drug Therapy, Combination; D005260:Female; D005264:Femoral Fractures / Q000139:chemically induced / Q000175:diagnosis / Q000503:physiopathology / Q000601:surgery; D005592:Fracture Fixation / Q000379:methods*; D006801:Humans; D000077557:Ibandronic Acid; D007093:Imidazoles / Q000008:administration & dosage / Q000009:adverse effects; D008279:Magnetic Resonance Imaging / Q000379:methods; D010024:Osteoporosis / Q000175:diagnosis / Q000188:drug therapy*; D016896:Treatment Outcome; D028761:Withholding Treatment; D000077211:Zoledronic Acid
chemical_list: D050071:Bone Density Conservation Agents; D004164:Diphosphonates; D007093:Imidazoles; D000077211:Zoledronic Acid; D000077557:Ibandronic Acid; D019386:Alendronate