The Results of Five Years Follow-Up of Cemented Total Knee Arthroplasty

ABSTRACT

PUEPOSE: To analysis the clinical and radiographic results of patients who could be followed more than five years in the cemented total knee arthroplasty. MATERIALS AND METHODS: Twenty-two cases(30 patients) were analysed clinically and radiographically, which underwent cemented total knee arthroplasties between March 1991 and December 1994, and were followed up at least more than 5 years. Several factors such as pain at walking, range of motion(ROM), knee rating score of the Hospital for Special Surgery(HSS), flexion contracture for clinical evaluation were evaluated and femorotibial angle, radiologic component position, radiolucent zone according to the roentgenographic evaluation of american knee society for the radiologic evaluation were analysed. RESULTS: Twenty-nine cases(90.7%) were rated as good or excellent, HSS scores were improved from preoperatively 51.5 points to postoperatively 85.5 points, Flexion contracture was relieved from 11degrees pre-operatively to 1degree postoperatively and ROM of knee joint were increased from 118degrees to 120.2 degrees . There were 4 complications; patellar subluxation in three cases, aseptic loosening in one case. The survival rate was 96.9% at six years and seven months. CONCLUSION: According to the clinical and radiologic assessments, cemented total knee arthraplasty seemed to be one of the best methods to fix the prostheses of total knee arthroplasty, which gave good or excellent clinical results at more than five years follow up.