Incision Infection With Mycobacterium tuberculosis After Total Hip Arthroplasty Without Any Primary Tuberculosis Focus

We describe a case of a tuberculous abscess unassociated with other clinical features of tuberculosis in a 46-year-old woman with a history of 4 hip surgeries plus total hip arthroplasty (THA) due to developmental hip dislocation. Four months after THA, she developed a collection at the incision site for which specimens produced positive culture findings for Mycobacterium tuberculosis. We could not detect any primary focus of tuberculosis anywhere in the patient's body. We performed soft-tissue debridement and drainage completely above the fascia lata to remove pus. The infection recurred twice despite chemotherapy and the earlier treatment. At a 6-year follow-up examination, there was no sign of either tuberculosis or prosthetic loosening. To our knowledge, this is the first report of localized tuberculous abscess within a THA incision.