Functional Results of the TKA with Non-resurfaced Patella according to Articular Degeneration of the Patella.
10.4055/jkoa.2008.43.1.50
- Author:
Hee Soo KYUNG
1
;
Ki Bong CHA
;
Chang Wug OH
;
Young Hon SON
;
Seung Kil BAIK
Author Information
1. Department of Orthopedic Surgery, Kyungpook National University Hospital, Daegu, Korea. hskyung@knu.ac.kr
- Publication Type:Original Article
- Keywords:
Patella;
Osteoarthritis;
Patellar non-resurfacing;
Total knee arthroplasty;
Anterior knee pain
- MeSH:
Arthroplasty;
Cartilage;
Female;
Follow-Up Studies;
Humans;
Incidence;
Joints;
Knee;
Male;
Osteoarthritis;
Patella;
Patellofemoral Joint;
Track and Field
- From:The Journal of the Korean Orthopaedic Association
2008;43(1):50-56
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
PURPOSE: We evaluated the functional outcome as degeneration of articular surface of the patella after total knee arthroplasty without resurfacing the patella. MATERIALS AND METHODS: From 2002 to 2003, 63 cases of 52 osteoarthritis patients who underwent total knee arthroplasty without resurfacing the patella as randomized selection were evaluated. Average age was 67.2 years old. Female were 49 patients, and male 3 patients Average follow-up periods were 32 months. Used implant were all PFC-sigma. Clinical outcomes was analyzed as Feller's patella score (perfect score; 30 points), anterior knee pain, crepitation according to the extent of involvement of articular surface of the patella and patello-femoral tracking. RESULTS: The Feller's patella score increased from mean 20.1 to 26.9 (p<0.05). However, there were no statistically significant differences as extent of involvement of patello-femoral joint (p>0.05). The patella score was low with patellar malalignment. Anterior knee pain after operation increased during postoperative 6 months according to the extent of degeneration of patellofemoral joint, but after 6 months there is no statistically significant differences except group 4 and all groups gradually decreased. Crepitation was increased during postoperative 1 year according to the extent of cartilage degeneration and after that its incidence decreased with time. CONCLUSION: The clinical results of total knee arthroplasty without resurfacing the patella was not influenced by the extent of degeneration of patello-femoral joint, but by alignment of patellofemoral joint. Anterior knee pain and crepitation increased in proportion to the extent of degeneration of patello-femoral joint in early period, but it fade out with time.
