ABSTRACT
PURPOSE: To evaluate the short-term results of PFC Sigma Rotating-Platform in total knee arthroplasty. MATERIALS AND METHODS: From November 2001 to April 2002, 41 knees in 25 patients who had been followed up over 2 year after TKA with PFC Sigma Rotating-Platform were evaluated retrospectively. RESULTS: The average range of motion increased from 96.9 degree preoperatively to 122.3 degree at the last follow-up. The average preoperative knee score (44.2) and functional score (51.3) improved to 90.8 and 92.1 respectively. The average score of activity level by authors 'improved from 42 preoperatively to 87 post-operatively. The radiolucent lines around prosthesis were found in 12% at femur and in 24% at tibia. But, none showed any clinical significance. Complications were superficial infections in 3 knees. CONCLUSION: The short-term results of PFC Sigma Rotating-Platform TKA were satisfactory. Therefore, long term follow-up evaluation is necessary.
Subject(s)
Humans , Arthroplasty , Femur , Follow-Up Studies , Knee , Prostheses and Implants , Range of Motion, Articular , Retrospective Studies , TibiaABSTRACT
PURPOSE: To analyze the clinical and roentgenographic results of rheumatoid arthritis and osteoarthritis after cemented total knee arthroplasty with posterior cruciate retention. MATERIALS AND METHODS: Since 1989, 53 cases of rheumatoid arthritis and 454 cases of osteoarthritis were followed up for average 7.3 years(range 5-14 years) after cemented total knee arthroplasty with posterior cruciate retention. RESULTS: There was no statistically difference in KSS knee score(A: 88.5, B: 92.2), functional score(A: 73.2, B: 79.3), activity level(A: 76, B: 80), flexion contracture(A: 4.5 degree, B: 4.3 degree), tibiofemoral angle(A: 4.8 degree, B: 4.7 degree) and roentgenographic findings. There were hyperextension of 4 cases in group A and 3 cases in group B, but instability was not found. CONCLUSION: There was no significant difference in clinical and radiological results between the osteoarthritic and rheumatoid arthritic group after cemented TKR with PCL retention. Therefore, cemented TKR with PCL retention could be used as a valuable method in treating rheumatoid arthritis.
ABSTRACT
PURPOSE: The purpose of this study was to review sports activities, and try to figure out recommendable sports activities and a guideline of activity level after successful primary total knee replacement. MATERIALS AND METHODS: Sports activities after TKR in 312 patients with osteoarthritis were reviewed prospectively. Minimum follow-up period was 3 years (range 3-12 years, mean 51 month). Clinical and radiological results were evaluated using Knee Society Knee score, activity level and radiolucent lines. RESULTS: Based on the clinical and radiological evaluation, there were no significant difference between the groups participated in sports and not participated in sports after successful primary TKR. Long distance walking, cycling, aerobics were popular among all age groups. CONCLUSION: Low-impact sports such as long distance walking, aerobics, cycling, bowling, golfing, hiking, swimming, badminton, gateball should be recommended for the all age groups after successful primary TKR.
ABSTRACT
PURPOSE: To evaluate the changes of clinical findings depending on the duration after total knee arthroplasty with or without patellar resurfacing. MATERIALS AND METHODS: Retrospective study of 145 total knee arthroplasties with (70 cases) or without (75 cases) patellar resurfacing was carried out clinically and radioilogically. Patients were evaluated using the knee society score, and the patellar score. RESULTS: No significant difference was found between patellar resurfacing and non-resurfacing knees regarding the knee society score, and the patellar score. The postoperative clinical scores, the postoperative development of anterior knee pain were not influenced by the presence of preoperative anterior knee pain, obesity, the grade of chondromalacia observed intraoperatively, preoperative anteroposterior alignment, or preoperative Insall-Salvati ratio. CONCLUSION: There was no specific difference between the two groups regarding clinical findings, so patellar non-resurfacing should be considered in patients who have relatively normal articular cartilage and patellofemoral joint space width.