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Functional Anatomy and Biomechanics
Published in Emeric Arus, Biomechanics of Human Motion, 2017
Tensor fasciae latae has a rectangular shape and is situated laterally at the unification of the gluteus maximus and lateral superior part of the thigh. From a topographic point of view, the tensor fasciae latae belongs to the thigh that is why the author considered to be described here. Insertion: The origin is on the anterior and outer part of the iliac crest and outer surface of the anterior superior iliac spine. For the distal insertion, it will unify with the iliotibial tract (band) below the greater trochanter. It continues and distally inserts the iliotibial tract to the lateral condyle of the tibia. Action: It is a flexor, abductor, and medial rotator of the femur. It can stabilize the knee in extension. Innervations are assured by superior gluteal nerves (L4, 5, S1).
Reduction and Fixation of Sacroiliac joint Dislocation by the Combined Use of S1 Pedicle Screws and an Iliac Rod
Published in Kai-Uwe Lewandrowski, Donald L. Wise, Debra J. Trantolo, Michael J. Yaszemski, Augustus A. White, Advances in Spinal Fusion, 2003
Kai-Uwe Lewandrowski, Donald L. Wise, Debra J. Trantolo, Michael J. Yaszemski, Augustus A. White
Donor site morbidity indicates the set of complications that may ensue after bone graft harvest from the iliac crest, with a reported rate of major and minor complications of 8.6% and 20.6%, respectively [18]. The complications shared by both anterior and posterior iliac crest graft harvest [19] include chronic pain at the donor site, hematoma, infection, cosmetic defects, and herniation of the abdominal content through iatrogenic defects in the ilium. Chronic pain and hematoma have the highest prevalence. Donor site morbidity associated with anterior iliac crest graft harvesting specifically follows from fracture of the anterior superior iliac spine and lesions to the lateral femoral cutaneous or ileoinguinal nerve. Harvesting from the posterior iliac crest has been associated with injuries to the cluneal nerves, to the superior gluteal artery, to the ureter, and with pelvic instability following destabilization of the sacro-iliac joint. It is worth remarking, however, that complications could be minimized if a careful and rigorous surgical technique is adhered to during graft harvesting, which should not be looked upon as a procedure to be carried out hurriedly.
Lumbo-Sacral Junction (L5 – S1)–Lateral
Published in A Stewart Whitley, Charles Sloane, Gail Jefferson, Ken Holmes, Craig Anderson, Clark's Pocket Handbook for Radiographers, 2016
A Stewart Whitley, Charles Sloane, Gail Jefferson, Ken Holmes, Craig Anderson
The collimated vertical beam is centred at right angles to the lumbo-sacral region and towards a point 7.5 cm anterior to the fifth lumbar spinous process. This is found at the level of the tubercle of the iliac crest or midway between the level of the upper border of the iliac crest and the anterior superior iliac spine.If the patient has particularly large hips and the spine is not parallel to the table top, a 5-degree caudal angulation may be required to clear the joint space.
Device solutions for a challenging spine surgery: minimally invasive transforaminal lumbar interbody fusion (MIS TLIF)
Published in Expert Review of Medical Devices, 2019
Arash J. Sayari, Dil V. Patel, Joon S. Yoo, Kern Singh
Inherent to the nature of MIS procedures is a limited visualization of the surgical field, and it is imperative for surgeons to be adequately trained in such approaches before choosing them for their patients. However, recent developments of expandable cages have allowed for in situ adjustments that allow for better fitting and greater control of interbody distraction. Additionally, recent developments of minimally invasive techniques have allowed extraction of iliac crest bone graft with reduced pain and morbidity as previously noted. In our experience, a unilateral MIS TLIF with an expandable cage filled with local bone graft and ICBG and supplemented with bilateral pedicle screw and rod fixation offers excellent results.