A comparison of the short-term effects of fixed platform versus rotating high-fiexion prosthesis for the patients with osteoarthrities of knee

楊贊禮(Yang Zanli，Dept Orthop，Jieyang Peop Hosp Jieyang，Guangdong 522000)… ∥Chin J Clin Basic Orthop Res.－2010，2(4).－266～270

A comparison of the short-term effects of fixed platform versus rotating high-fiexion prosthesis for the patients with osteoarthrities of knee

楊贊禮(Yang Zanli，Dept Orthop，Jieyang Peop Hosp Jieyang，Guangdong 522000)… ∥Chin J Clin Basic Orthop Res.－2010，2(4).－266～270

ObjectiveTo compare the preliminary clinical outcome between fixed platform and rotating high-flexion prosthesis following total knee replacement(TKR).MethodsForm January 2007 to December 2009，68 patients with osteoarthritis of knee underwent TKR.Thirty two patients(38 knees)received fixed bearing prosthesis，while 36 patients 44 knees received rotating high-flexion prosthesis.Knee joint range of motion(ROM)and the hospital for special knee surgery score(HSS)were measured preoperatively and at the last follow-up to compare the clinical effects of two prosthesis replacement methods.ResultsAll patients were followed up fo 3 － 26 months with an average of 22 months.According to HSS，the result was excellent in 47 cases，good in 17 cases and fair in 4 cases with the total excellent and good rate of 94.1%.Preoperative ROM of knee joint as well as preoperative HSS and HSS at the last follow-up had no statistical differences between two prosthesis groups.However，rotating high-flexion prosthesis group had increased ROM of knee at the last follow-up(P＜ 0.05).ConclusionRotating high-flexion prosthesis has potential kinematic advantages for improving joint function and relieving contact stress and prosthesis wearing;fixed platform prosthesis is suitable for elderly patients，or patients with financial restrictions or those who don’t perform high-flexion activities.19 refs，2 figs，3 tabs.

(Authors)