@article{article_414980, title={Variant anatomy of sciatic nerve and their clinical implications}, journal={Ege Tıp Dergisi}, volume={57}, pages={88–93}, year={2018}, DOI={10.19161/etd.414980}, url={https://izlik.org/JA42WB96HZ}, author={Aktan İkiz, Z. Aslı and Bilge, Okan and Üçerler, Hülya and Çelik, Servet and Boduç, Erengül}, keywords={Sciatic nerve,piriformis syndrome,palsy,hip replacement,anatomical variations.}, abstract={<p class="MsoNormal" style="margin-top:2pt;margin-right:0cm;margin-bottom:3pt;margin-left:0cm;text-align:justify;line-height:12.1pt;"> <b> <span lang="en-us" style="font-size:9pt;font-family:Arial, sans-serif;" xml:lang="en-us">Aim: </span> </b> <span lang="en-us" style="font-size:9pt;font-family:Arial, sans-serif;" xml:lang="en-us">The
aim of present study was to demonstrate the variations of piriformis muscle,
sciatic nerve and its branches and discuss their clinical importance. </span> </p> <p> </p> <p class="MsoNormal" style="margin-top:2pt;margin-right:0cm;margin-bottom:3pt;margin-left:0cm;text-align:justify;line-height:12.1pt;"> <b> <span lang="en-us" style="font-size:9pt;font-family:Arial, sans-serif;" xml:lang="en-us">Materials and Methods: </span> </b> <span lang="en-us" style="font-size:9pt;font-family:Arial, sans-serif;" xml:lang="en-us">Fifty-two gluteal and lower limb regions of 26 formalin fixed male
cadavers were evaluated in Ege University Faculty of Medicine, Department of Anatomy.
The anatomical relationship between the sciatic nerve and the piriformis
muscle, and division level of sciatic nerve in thigh was recorded.  </span> </p> <p> </p> <p class="MsoNormal" style="margin-top:2pt;margin-right:0cm;margin-bottom:3pt;margin-left:0cm;text-align:justify;line-height:12.1pt;"> <b> <span lang="en-us" style="font-size:9pt;font-family:Arial, sans-serif;" xml:lang="en-us">Results: </span> </b> <span lang="en-us" style="font-size:9pt;font-family:Arial, sans-serif;" xml:lang="en-us">The
sciatic nerve exited the pelvis as a single branch through the infrapiriform
foramen with no variation in 84.62% of the lower limbs. The division variations
of sciatic nerve were determined in 23.08%. In 8 of 12 high divisions were
observed in gluteal regions (15.38%). The common peroneal nerve and the tibial
nerve entered deep gluteal region via the greater sciatic foramen below
piriformis muscle separately in four lower limbs (7.69%). Two separate nerve
divisions passed above and through (or below) the piriformis muscle and then
combined together to form common peroneal nerve while tibial nerve passing
below the piriformis muscle in 4 lower limbs (7.69%). In 2 of 12, high division
occurred in the 1/3 upper portion of the thigh unilaterally (3.85%). The division
of sciatic nerve in the popliteal fossa was seen in two lower limbs (3.85%). </span> </p> <p> </p> <p> </p> <p class="MsoNormal" style="margin-top:2pt;margin-right:0cm;margin-bottom:3pt;margin-left:0cm;text-align:justify;line-height:12.1pt;"> <b> <span lang="en-us" style="font-size:9pt;font-family:Arial, sans-serif;" xml:lang="en-us">Conclusion: </span> </b> <span lang="en-us" style="font-size:9pt;font-family:Arial, sans-serif;" xml:lang="en-us"> The clinical importance of the sciatic nerve around the piriformis
muscle or in the thigh was discussed for piriformis syndrome, palsy after total
hip arthroplasty, intramuscular injections in gluteal region and failed
popliteal nerve block <span style="letter-spacing:-.1pt;">. </span> </span> </p> <p> </p>}, number={2}