Vastuslateralis and vastus medialis muscle EMG activity that two relatively large range, almost the same time the beginning and ending, showing a high degree of consistency.
股外侧肌和股内侧肌这两块肌肉的肌电活动幅度比较大，几乎是同时开始，同时结束，表现出了高度的一致性。
2
Result Operation performed via posterior approach with quadrate muscle flap in 14 cases, anterior approach with sartorius muscle flap in 12 cases, and vastuslateralis flap in 16 cases.