A rare case of bilateral high division of sciatic nerve with unilateral bifid piriformis and its clinical implications
نویسنده
چکیده
Sciatic nerve shows many variations in its division, especially its high division. This variation (high division of sciatic nerve) may results in sciatica, nerve injury during deep intramuscular injections in gluteal region, piriformis syndrome, and failed sciatic nerve block in anaesthesia. A very unusual case of two different types of high divisions of sciatic nerve on either side of an adult male cadaver with unilateral divided piriformis muscle was encountered during routine dissection is presented herewith, along with some proposition in available classifications. Knowledge of these variations in course of sciatic nerve may help surgeons and all those who concerns to avoid complication and plan their intervention in a better and more effective way.
منابع مشابه
A Rare Anatomical Variation of Sciatic Nerve and its Relationship with Piriformis Muscle
Sciatic nerve is the thickest nerve of the body which is formed by ventral branches of L4, L5, S1, S2 and S3 of spinal nerves as a part of sacral plexus in pelvis. It leaves the pelvis via the greater sciatic foramen below piriformis muscle and descends between the greater trochanter and ischial tuberosity, along the back of the thigh and dividing into the tibial and common peroneal (fibular) n...
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Sciatic nerve is the thickest nerve of the sacral plexus, which innervates many muscles and vast areas of the skin of the lower limb. It leaves the pelvis via the greater sciatic foramen, emerges into the gluteal region by passing under the piriformis muscle, and descends beneath the gluteus maximus to divide into its terminal branches: tibial and common peroneal nerve at the superior angle of ...
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