Abstract:

BACKGROUND: The total knee arthroplasty is an effective method to treat the gonarthrosis, but the curative effect is related with many factors.
OBJECTIVE: To explore the result for the treatment of gonarthrosis with total knee arthroplasty.
METHODS: From July 1999 to June 2008, the total knee arthroplasty was performed in 86 gonarthrosis patients (98 knees), no whirbone was replaced. A total of 95 knees in 84 cases were treated with posterior stabilized total knee prosthesis, including 92 knees prosthesis from Plus company and 3 posterior stabilized prosthesis from U.S. Stryker; one case used posterior cruciate ligament prosthesis (BCAE, Beijing, China) in both knees, and one case used Aikang prosthesis in one knee. Patients were regularly followed up after replacement, and knee joint function was evaluated using U.S. John.N.Insall scoring system.
RESULTS: The average follow-up time in 86 cases was 5.2 years (range 1-9 years). To the last visit of follow-up, the knee joints flexion was less than 90° in 5 cases of 7 knees and extension was more than -10° in 2 cases. Among these cases, 1 case of 2 knees was rheumarthritis patient, 1 case of 2 knees used domestic implant of knee joint in early time. One case exhibited repeated joint effusion within one year after operation, and was cured by conservative treatment, but the knee joint activity was lost. According to John.N.Insall scale, the excellent and good rate was 90.7%. It was improved distinctly in ache degree, joint function and activity after total knee arthroplasty. It is suggested that total knee arthroplasty is an effective method of treating gonarthrosis. It can acquire satisfactory effect with strict choice of surgical indication, standard surgical operation and systematic recovery training.