Results: The extremities of the piriformis, gemellus superior. obturator internus and gemellus inferior formed conjoined tendon.

• 结果：梨状肌腱和闭孔内肌上、下孖肌总腱的末段形成联合腱，闭孔外肌腱独立附着，臀中肌腱附着区后部增厚强韧；