Total Hip Arthroplasty for Acetabular Protrusion in a Patient with Active Tuberculosis Infection: A Case Report

Background: After the spine, the hip is the most common site that can be infected with extrapulmonary tuberculosis (TB). In the early stages, patients present with complaints of pain around the hip, and after a while, they might experience deformities, shortening, and limited movements. Because hip TB mimics the symptoms of other hip diseases like rheumatoid arthritis (RA) and osteoarthritis, diagnosis is difficult. Here, we aimed to report a rare case of hip TB secondary to pulmonary TB and the result of the total hip arthroplasty (THA). Case Report: A 41-year-old man presented to the orthopedic clinic with a complaint of progressive pain in the right hip. After laboratory tests, imaging, and sputum culture, active TB infection and advanced arthritis of the hip joint were detected. A subluxation/ dislocation stage of arthritis and an acetabular protrusion were present, leading to the restriction of movements. After receiving medical therapy, we performed THA for the patient Conclusion: The patient’s right hip reached a normal range of motion (ROM) without pain in the 18-month follow-up. Since TB can mimic the symptoms of many common diseases, considering hip TB along with other diagnoses can aid in reducing possible complications and improving patients' lives.