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为探明胫骨旋转畸形对髌股关节应力分布的影响，本实验选取7个新鲜离体膝关节，在屈膝30°、60°、90°状态下，分别用压敏片测量胫骨中立位、内旋10°、20°、30°和外旋10°、20°、30°时的内、外侧髌股关节接触压力与峰值。结果显示外旋过程中，外侧髌股关节的接触压均值和接触压峰值呈非线性递增趋势，内侧呈非线性递减趋势；内旋过程中，外侧髌股关节的接触压均值和峰值逐渐减小，内侧则增加显著。上述变化在内旋20°到外旋20°的范围内较有规律。提示胫骨旋转畸形使髌股关节应力分布严重失衡，可能是引起髌股关节退变的重要因素。
In order to find out the influence of tibial rotation deformity on the stress distribution of the patellofemoral joint, seven freshly isolated knee joints were selected in this study. The tibial neutral positions were measured with pressure-sensitive strips under flexion at 30 °, 60 ° and 90 °, respectively The medial and lateral patellofemoral joint contact pressures and spikes at 10 °, 20 °, 30 °, and 10 °, 20 °, and 30 ° rotation were analyzed. The results showed that in the process of external rotation, the mean value of contact pressure and the peak value of contact pressure in the lateral patellofemoral joint increased non-linearly and the inside decreased linearly. In the process of rotation, the mean and peak values of contact pressure decreased in the lateral patellofemoral joint , The inside is increased significantly. The above changes in the rotation of 20 ° to the external rotation of 20 ° within a more regular range. Tip tibial rotation deformity patellofemoral joint stress distribution of a serious imbalance may be caused by patellofemoral joint degeneration an important factor.