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Arthroplasty of the knee with tibial and/or femoral metallic implants in rheumatoid arthritis. Rheumatologic evaluation.

Fifty-five patients with rheumatoid arthritis underwent 68 femoral mold and/or tibial plateau knee arthroplasties. The records of all patients were reviewed and 42 patients were examined and evaluated 1–6.5 years after surgery using a simple 100 point scoring system equally emphasizing pain, mobility, and functional capacity. Although 84.5% showed some improvement, mean overall change was modest at + 15.3 points. Forty-seven complications occurred in 38 of the 68 operations. Implications for rheumatologists and referring physicians are discussed.