Total Knee Arthroplasty with NexGen® System - 3-8 Year Follow-up Results -

Ⓡ total Ⓡ TKA (cruciate retaining (CR) type:34, posterior cruciate substituting (PS) type:62) from March 1997 to May 2002, were evaluated retrospectively. The evaluations included the preoperative and postoperative range of motion (ROM), Knee Society Score (KSS), knee functional score, tibiofemoral angle and postoperative complications. Results: The ROM increased from preoperative mean flexion contracture of 9.3° and further flexion of 116.4° to a postoperative mean flexion contracture of 2.1° and further flexion of 126.3° (ROM: 124.2°). The ROM of CR type improved from 112.7° to 123.1°, and the PS type improved from 105.3° to 124.9° (p>0.05). The KSS and knee function score improved from 54 and 41 before surgery to 94 and 87 after surgery, respectively (p>0.05). The tibiofemoral angle changed from preoperative varus 5.7° to postoperative valgus 5.2°. The complications were two cases of infection and two cases of early loosening. Conclusion: The 3 to 8 year follow-up results after NexGen Ⓡ TKA were satisfactory in both the

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