Application effects of CR prosthesis and PS prosthesis in total knee arthroplasty for knee osteoarthritis
Objective To analyze the application effects of posterior cruciate retaining(CR)prosthesis and posterior cruciate stabilizing(PS)prosthesis in total knee arthroplasty for knee osteoarthritis.Methods A total of 80 patients with knee osteoarthritis who underwent total knee arthroplasty in the hospital from January 2020 to January 2022 were selected as the research objects.According to the different prosthesis used in the operation,the patients were divided into CR prosthesis group(40 cases,CR prosthesis)and PS prosthesis group(40 cases,PS prosthesis).The application effects of the two groups were compared.Results The intraoperative blood loss and postoperative drainage volume of the CR prosthesis group were less than those of the PS prosthesis group,the pain score on the 3rd day after operation was lower than that of the PS prosthesis group,and the hospital stay was shorter than that of the PS prosthesis group(P<0.05).The total incidence of postoperative complications in the CR prosthesis group was significantly lower than that in the PS prosthesis group(P<0.05).At 3 and 6 months after operation,the total power and average power of knee joint muscle strength in the CR prosthesis group were lower than those in the PS prosthesis group(P<0.05).At 1,3 and 6 months after operation,the Hospital Special Surgery(HSS)score of the CR prosthesis group was lower than that of the PS prosthesis group(P<0.05).Conclusion In the prosthesis selection of total knee arthroplasty for knee osteoarthritis,CR prosthesis can retain proprioception to the greatest extent,decrease intraoperative blood loss,alleviate postoperative pain and reduce the incidence of postoperative complications compared with PS prosthesis,but the recovery effect of postoperative knee joint muscle strength and function is lower than that of PS prosthesis.It can be seen that both have their own advantages and disadvantages.In clinical selection,it is necessary to strictly grasp the indications and select the prosthesis type according to the specific conditions of the patients.
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