Knee instability and tibial osteotomy a clinical study

Abstract

Twenty-one gonarthrosis patients were preoperatively assessed according to a newly developed orthoradiographic technique (“three-point measurement”) and followed up for 2–3 years postoperatively using this technique. The medio-lateral instability of the knee joints was not influenced by the operation. The varus/valgus deviation was under-corrected, on average, but the deviation did not increase significantly with time after the operation. Judging from this pilot study the three-point measurement technique supplies relevant information and it is now being used in a prospective study on high tibial osteotomy in gonarthrosis.

Key Words:

• knee instability
• measurement
• orthoradiographic method
• gonarthrosis
• tibial osteotomy