George Bincy M, Nayak Satheesha B, Marpalli Sapna
Department of Anatomy, Melaka Manipal Medical College (Manipal Campus), Manipal Academy of Higher Education, Manipal, India.
Anat Cell Biol. 2019 Mar;52(1):90-92. doi: 10.5115/acb.2019.52.1.90. Epub 2019 Mar 29.
Tensor fasciae suralis, also known as ischioaponeuroticus is a clinically relevant muscle variant located in the popliteal fossa. Though rare, when present the muscle may arise from any of the hamstrings and gets inserted to the crural fascia of leg or tendocalcaneus and is innervated by the tibial component of sciatic nerve. Here we report a variant of tensor fasciae suralis originated from the lowermost part of linea aspera along with the fibers of short head of biceps femoris in the left lower limb of a male cadaver aged approximately 58 years. The muscle was 16 cm in length and 1 cm breadth in its widest part. It was found inserted to the crural fascia over the lateral head of gastrocnemius and was found innervated by common peroneal nerve. To the best of our knowledge, the tensor fascia suralis muscle originated from linea aspera along with short head of biceps femoris and innervated by common peroneal nerve has not been reported in either cadaveric or imaging studies.
腓肠肌筋膜张肌，也称为坐骨腱膜肌，是一种位于腘窝的具有临床意义的肌肉变异。虽然罕见，但该肌肉出现时可能起自任何一条腘绳肌，止于小腿筋膜或跟腱，并由坐骨神经的胫神经分支支配。在此，我们报告一例约58岁男性尸体左下肢的腓肠肌筋膜张肌变异，其起自粗线最下部并与股二头肌短头纤维相连。该肌肉长16厘米，最宽处宽1厘米。它止于腓肠肌外侧头上方的小腿筋膜，由腓总神经支配。据我们所知，起自粗线并与股二头肌短头相连且由腓总神经支配的腓肠肌筋膜张肌在尸体研究或影像学研究中均未被报道过。
