Pham TT, et al. - This study was designed to test the hypothesis that the semiconstrained characteristics of the Coonrad-Morrey prosthesis do not compromise the survival rate of the implant in a rheumatoid elbow. Follow-up of Coonrad-Morrey prosthesis in rheumatoid arthritis patients revealed satisfactory outcomes, however, high rate of complications was reported even if the rate of implant revision stayed low.