Abnormal Relation between Sciatic nerve and Piriformis – A Case Report
Journal Title: Scholars Journal of Medical Case Reports - Year 2016, Vol 4, Issue 3
Abstract
Abstract: The main Aim of the study is to report anatomic variation in sciatic nerve in cadaveric dissection. The type of study is Case report, during routine undergraduate dissection in a middle aged male cadaver; we found that the sciatic nerve divided in buttock into common peroneal and tibial nerve. Then the common peroneal nerve pierced the piriformis muscle and divided the muscle into two parts and the tibial nerve passed below the muscle. Common peroneal nerve descended laterally in the thigh and gave a branch to short head of biceps femoris and thereafter distributed to the muscles and skin on the anterolateral aspect of the leg and dorsum of the foot. Tibial nerve descended medially and gave branches to upper part of hamstring muscles arising from the ischial tuberosity while it is still in the buttock and upper part of the thigh. It is continued into the leg and foot to supply muscles and skin of the posterior aspect of the leg and sole of the foot. Coccygodynia and sciatic pain have been attributed to abnormal relations between the piriformis muscle and the sciatic nerve; so awareness of such variation is helpful for assessment. Keywords: sciatic nerve, peroneal nerve, ischial tuberosity
Authors and Affiliations
Dr. John P Sneha
Keywords
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