J Korean Orthop Assoc.  2003 Aug;38(4):336-341.

Results of Total Knee Arthroplasty with NexGen(R) system (5-year follow up)

• Choi CH
• Kim JH
• Cho YJ
• Cho JH
• Chung HK

Abstract

PURPOSE
To evaluate the mid-term (over 5 years) clinical and radiologic results of NexGen(R) total knee replacement arthroplasty (TKRA)retrospectively. MATERIALS AND METHODS: Between Nov. 1996 and Jun. 1997, 57 knees in 43 patients who had been followed up for 5 years after TKRA with NexGen(R) were evaluated retrospectively for clinical and radiologic results. RESULTS: The average range of motion increased from 116degree preoperatively to 125 degrees at the last follow-up. In patients with osteoarthritis, the average preoperative knee score (59.9) and functional score (40.3) improved to 94.7 and 83.7, respectively. In rheumatoid arthritis patients, the mean knee score and functional score also improved from 55.6 and 35.9 to 88.9 and 79.9. Roentgenographic evaluation revealed a radiolucency rate of 60%. Complications were periprosthetic fractures in 2 cases and aseptic loosening in 1 case. The latter had received a reimplantation. CONCLUSION: The mid-term results of NexGen. TKRA were reliable and satisfactory in terms of improvements of; range of motion, restoration of function, and rare complications. However, long-term follow-up evaluation is necessary to monitor many cases of radiolucent line (60%) in the femoral component.

Keyword

NexGen(R) TKRA; Radiolucent line; Total knee arthroplasty

MeSH Terms

Arthritis, Rheumatoid
Arthroplasty*
Arthroplasty, Replacement, Knee
Follow-Up Studies
Humans
Knee*
Osteoarthritis
Periprosthetic Fractures
Range of Motion, Articular
Replantation
Retrospective Studies