Hip Pain Due to Leiomyoma After Total Hip Arthroplasty: A Case Report.

Total hip arthroplasty (THA) is a widely recognized treatment for various hip disorders, significantly improving pain and function. Despite advances in surgical techniques, a proportion of patients experience postoperative pain, leading to a necessity for revision. This report outlines a unique case of chronic hip pain post-THA associated with the unexpected identification of a large leiomyoma, an occurrence not yet reported in the literature. A 75-year-old female with a history of right THA presented with persistent left hip pain two years after the operation. After left hip replacement, she initially reported significant improvement, only to experience severe pain six months later. Diagnostic imaging with MRI revealed a leiomyoma close to the left hip, suspected of causing obturator neuropathy. Following interdisciplinary consultation, surgical removal of the fibroid was performed, resulting in complete resolution of symptoms. The patient underwent an evaluation two years following the surgical removal of the fibroid. At this juncture, her Harris Hip Score was recorded at 87, and she was completely free from pain.