Hemophilus parainfluenzae complicating total knee arthroplasty. A case report.

Infections are an unfortunate but well-known complication of prosthetic joint replacements. Prophylactic antibiotics have been prescribed to help combat infections in total joint arthroplasties. A 78-year-old woman with a cemented total knee replacement developed a Hemophilus parainfluenzae infection following routine root canal dental surgery. The infection was successfully treated with arthroscopic irrigation and antibiotic therapy.