Background
Highly active antiretroviral therapy (HAART) has changed the face of human immunodeficiency virus (HIV) and allowed patients to live for many decades. HIV and HAART are known risk factors for osteonecrosis of bone, osteopenia, and osteoporosis. Therefore, the demand for total joint arthroplasty (TJA) in HIV-infected patients is on the rise. We attempted to determine whether modern treatments for HIV have impacted the rate of periprosthetic joint infection (PJI).