Abstract:

BACKGROUND: A better range of motion following application of high flexion knee prosthesis replacement surgery is highly correlated with preoperative joint activities degree and postoperative rehabilitation exercise.
OBJECTIVE: To explore the clinical effect of improved training methods of high-flexion prosthesis and compare with traditional functional exercise.
METHODS: The 90 cases undergoing high-degree flexion knee prosthesis replacement were randomly divided into observation and control groups. The control group was subjected to routine functional exercises following replacement. The observation group was subjected to analgesic drugs and replacement of muscle relaxants, and progressive modified functional exercise including knee and ankle flexion and extension， knee flexion exercises such as squatting. The clinical effect was evaluated using HSS and range of motion (ROM) in knee joint function.
RESULTS AND CONCLUSION: The improvement of knee score and knee joint activity was significantly better in the observation group than the control group at different time points after replacement (P all < 0.001). Results show that functional exercise should be performed early following joint replacement, and improved training method improves the range of motion and function of joint following high-flexion prosthesis replacement.