Total Knee Arthroplasty in Alkaptonuric Patient With Ochronotic Arthropathy.

Michalak, Patryk; Buchcic, Piotr; Drobniewski, Marek; Borowski, Andrzej · J Am Acad Orthop Surg Glob Res Rev · 2026

case_report · Level V

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Abstract

We present a patient with ochronotic arthropathy admitted to perform total knee arthroplasty (TKA) of the right knee. The patient admitted to the orthopaedic department presented with pain in multiple joints, particularly affecting the knees, hips, and shoulders. Preoperatively, the patient underwent meticulous preparation for the procedure in consultation with the anesthesiology team. During the surgery, we observed black bones and menisci in the joint. The patient felt a massive relief after TKA. At 1-month follow-up, the patient reported a satisfying range of motion of the knee. Our findings suggest that TKA may represent an effective therapeutic option for patients with alkaptonuria and degenerative joint disease because it may provide substantial pain relief and improve joint function.

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