Survivorship analysis of implant arthroplasty for the first metatarsophalangeal joint

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Papagelopoulos PJ. Kitaoka HB. Ilstrup DM. Clinical Orthopaedics & Related Research. (302):164-72, 1994 May. During a 21-year period at the authors' institution, 93 primary implants of the first metatarsophalangeal joint were performed on 79 patients (12 Á men and 67 women). Their mean age was 56 years (range, 19 to 75 years). The average duration of follow-up evaluation in 75 patients who were alive and without reoperation was 12 years (range, two to 17 years). With the proportional hazards general linear model, young age was identified as a significant risk factor for poor survival: at ten years, implant survival was 82% in patients 57 years of age or younger, and 90% in patients older than 57 years. The overall probability that an implant would not have been removed was 86% at ten years after arthroplasty and 82% at 15 years. *