Abstract
We have been perfoming Bateman prosthesis replacement for the osteoarthritis of the hip joint since 1980. In the present study, 13 cases with 15 joints were examined directly, and 4 cases with 5 joints were examined by questionnaire after follow-up of more than 5 years post-operative course.The age range was from 43 to 75 with an average of 55.4 years.13 cases with 15 joints were evaluated by roentgenograms.The clinical results showed that preoperative total average score of 47.7 points was improved to 80.2 points postoperatively by Japanese Orthopedic Association Hip Score System. Roentgenographic results showed that central migration stopped in 10 cases, loosening and sinking of the prosthesis occurred in no case, clear zone around the prosthesis occurred in 10 cases, and ectopic bone formation occurred in 3 cases postoperatively.
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