Analysis of the relative factors affecting the functional restoration of knee joint after the fracture of patella

Objective To explore the relative factors affecting the functional restoration of knee joint after the fracture of patella, and to anticipate the effect of middle-term and short-time rehabilitation therapy. Method 23 patients with limited flexion function of knee joint after the fracture of patella, accepted the routine rehabilitation treatment in out -patient service, and some of the patients adopted local heat therapy at the same time. The 13 factors have been selected for regression analysis step by step under the help of SPSS statistical software. Result The flexible degree of the knee joint before rehabilitation (X1), the non-smooth posterior edge of patella (X2), and the immobilization time of the joint (X3) are relative factors for the flexible degree of knee joint 1 month after rehabilitation (Y1) and the flexible degree of knee joint 3 months after rehabilitation (Y2), and Y1 can also be affected by whether surgery therapy or not (X4), (partial regression coefficient P 0.05). The differences between theoretical mean and practical mean of Y1 and Y2 are 5.6% and 4.2% respectively in the 23 cases. Conclusion The flexible degree of the knee joint before rehabilitation, whether the posterior edge of patella is smooth or not, and the immobilization time of the joint are relative factors affecting the middle-term and short-term flexible function of knee joint after the fracture of patella, and short-term restoration can also be affected by whether surgery therapy or not. The effects of middle-term and short-term rehabilitation can be predicted by regression equation primarily.