Early experience with total knee arthroplasty.

Early results of 76 geometric total knee replacements were reviewed with assistance from computer analysis. A 92% patient follow-up for one to three years showed an overall satisfactory result with substantial improvement, especially in relief of severe pain. However, several problems are noted, including fractures beneath the tibial plateau and loosening. The long-term results are still unknown. The indications for total knee replacements should remain conservative until long-term results and experience have been achieved.