sciatic bursa of obturator internus

例句：

1. 1. The patient had a severe pain in his sciatic bursa of the obturator internus.
   患者坐骨结节间滑囊处严重疼痛。
2. 2.During surgery, the surgeon carefully removed the sciatic bursa of the obturator internus to avoid damaging the nerve.
   手术中，外科医生小心地切除了坐骨结节间滑囊，以避免损伤神经。
3. 3. This condition is often associated with sciatic bursa of the obturator internus and can cause significantdiscomfort.
   这种状况通常与坐骨结节间滑囊有关，并可能导致严重的不适感。