Case Series
Composite Anatomical Variations between the Sciatic Nerve and the Piriformis Muscle: A Nepalese Cadaveric Study
Figure 1
(a) Higher division of sciatic nerve and split piriformis muscle with two heads. 1: common peroneal superior head of piriformis; 2: tibial component; PR-1: inferior component; PR-2: head of piriformis; GMax: gluteus maximus; GMed: gluteus medius; SN: sciatic nerve; SG: superior gemellus. (b) Higher division of the sciatic nerve and split piriformis muscle with two heads. Forceps tip showing the inferior head of piriformis component. 1: common peroneal component; 2: tibial component; PR-1: inferior component; PR-2: head of piriformis.
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