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The STL has a broad fan-like origin from the sacrum, coccyx, ilium and sacroiliac joint capsule. Its fibers converge to course caudally to insert into the medial ischial tuberosity and additional fibers (known as the falciform ligament) extend to the ischial ramus 1, 3.
- provides extensive insertion for the gluteus maximus muscle
- distal fibers partially blend with the proximal tendon of the long head of biceps femoris
- sacrospinous ligament
- dorsal sacroiliac ligament
pudendal nerve entrapment syndrome
- may be secondary to sacrotuberous ligament calcification (see Case 1)
- 1. Bierry G, Simeone FJ, Borg-Stein JP et-al. Sacrotuberous ligament: relationship to normal, torn, and retracted hamstring tendons on MR images. Radiology. 2014;271 (1): 162-71. doi:10.1148/radiol.13130702 - Pubmed citation
- 2. McMINN. Lasts Anatomy Regional and Applied. CHURCHILL LIVINGSTONE. (2003) ISBN:B0084AQDG8. Read it at Google Books - Find it at Amazon
- 3. Mercer, S. R. "Anatomy in practice: the sacrotuberous ligament." NZ Journal of Physiotherapy 33 (2005): 3-92.
- 4. Loukas M, Louis RG, Hallner B et-al. Anatomical and surgical considerations of the sacrotuberous ligament and its relevance in pudendal nerve entrapment syndrome. Surg Radiol Anat. 2006;28 (2): 163-9. doi:10.1007/s00276-006-0082-3 - Pubmed citation