The changes of thickness and tilt angle of patella are simulated by translating and rotating the patellar axis.
The changes of thickness and tilt angle of patella are simulated by translating and rotating the patellar axis.
在伸膝力矩不变的条件下，通过改变髌骨轴线位置，模拟髌骨厚度和高度以及髌骨倾角的变化。