Assessment of the survival and the clinical results of judet cementless THR.

概要

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Judet cementless hip prostheses were performed at the Yamaguchi Central Hospital in 167 hips during the period from 1976 to 1987. Revision surgery was undertaken for socket loosening in nine patients, stem breakages in three. Statistical analysis was performed using the general Wilcoxon test, and the prosthesis survival was estimated using a nonparametric estimation of survival. Total hip arthroplasty may fail by a variety of mechanisms. Failure may be related to prosthetic design, and setting angle of inserted socket. Setting angle of the socket was clssified into three groups. Setting angle was less than 45 degrees in group 1, from 45 to 60 degrees in group 2, and more than 60 degrees in group 3. There was no significant difference in prosthesis survival probabilities among three groups. Robert Judet made socket design better in 1980. There was significantly improved (P<0.001) prosthesis survival in the new type in comparison to the old type. It was suggested that improve of the socket was significant.
西日本整形・災害外科学会の論文