Hydroxyapatite-Coated Prostheses in Total Hip and Knee Arthroplasty

Abstract

Leiomyomas are benign smooth-muscle tumors that most commonly arise in the uterus, the gastrointestinal tract, and the skin. They constitute 70% to 80% of all benign mesenchymal tumors, with uterine leiomyomas being the most common smooth-muscle tumor in women1. Leiomyomas are infrequently seen in the extremities2-6 and are rarely seen in bone. To the best of our knowledge, the only reported intraosseous leiomyomas occurred in the proximal aspect of the femur7, in the tibia4,8, and in the mandible9,10. We are not aware of any previous reports of intraosseous leiomyomas in the upper extremity. We describe the case of a patient with a painful intraosseous leiomyoma involving the distal aspect of the ulna. Our patient was informed that data concerning the case would be submitted for publication. Athirty-eight-year-old, left-hand-dominant woman presented with a ten-year history of ulnar pain in the left wrist. The medical history, including that for gynecological disorders, was negative. Initially, the pain had been mild, but four years before the patient presented at our institution, the symptoms began to worsen. The patient took nonsteroidal anti-inflammatory medication for approximately three months, with transient relief of symptoms. However, two years later, the pain again worsened and began to limit the range of motion of the left wrist and forearm. Physical examination revealed moderate, diffuse swelling along the ulnar dorsal aspect of the left wrist. Palpation of the distal aspect of the ulna caused extreme pain that was centered mostly about the ulnar styloid and the …