Sciatic Foramina Anatomy PDF

Anatomy of LOWER Limb Sciatic Foramina By Dr. Hassan Mohammed Rizk (Ph.D.) Associate Professor of Human Anatomy and Embryology  Case Study LOWER LIMB Piriformis syndrome Sciatic Foramina By Dr. Hassan R...

Anatomy of LOWER Limb Sciatic Foramina By Dr. Hassan Mohammed Rizk (Ph.D.) Associate Professor of Human Anatomy and Embryology  Case Study LOWER LIMB Piriformis syndrome Sciatic Foramina By Dr. Hassan Rezk September 19, 2024 2  Objectives: by the end of this lecture the student must understand the following knowledge: LOWER LIMB 1) Boundaries of Sciatic Foramina. 2) Structures passing through Sciatic Foramina. Sciatic Foramina By Dr. Hassan Rezk September 19, 2024 3 LOWER LIMB Relation Between Muscles of Gluteal Region and Sciatic Foramina Sciatic Foramina By Dr. Hassan Rezk September 19, 2024 4  Sacro-tuberous & Sacrospinous Ligaments LOWER LIMB Sciatic Foramina By Dr. Hassan Rezk September 19, 2024 5 LOWER LIMB Sciatic Foramina By Dr. Hassan Rezk September 19, 2024 6 LOWER LIMB Sciatic Foramina By Dr. Hassan Rezk September 19, 2024 7 LOWER LIMB Sciatic Foramina By Dr. Hassan Rezk September 19, 2024 8 LOWER LIMB A P Piriformis Obturator Internus Sciatic Foramina By Dr. Hassan Rezk September 19, 2024 9 LOWER LIMB A P Greater sciatic foramen Lesser sciatic foramen Sciatic Foramina By Dr. Hassan Rezk September 19, 2024 10  Right Greater & Lesser Sciatic Foramina LOWER LIMB Sciatic Foramina By Dr. Hassan Rezk September 19, 2024 11 LOWER LIMB Sciatic Foramina By Dr. Hassan Rezk September 19, 2024 12  Sacro-tuberous & Sacrospinous Ligaments LOWER LIMB Sciatic Foramina By Dr. Hassan Rezk September 19, 2024 5  Greater sciatic foramen Lesser sciatic foramen 1) Antero-superior: greater sciatic notch. 1) Superiorly: sacrospinous ligament. Boundaries 2) Posteriorly: Sacro-tuberous ligament. 2) Anteriorly: lesser sciatic notch. 3) Inferiorly: Sacrospinous ligament. 3) Posteriorly: sacrotuberous ligament. LOWER LIMB 1) Piriformis muscles 2) Above Piriformis: Superior gluteal nerve. Superior gluteal artery. 1) Superior gemellus. 3) Below Piriformis: 2) Obturator internus tendon. Inferior gluteal nerve. 3) Inferior gemellus. Contents Inferior gluteal artery. 4) Pudendal nerve. Sciatic nerve. 5) Internal pudendal artery. Posterior cutaneous nerve of thigh. 6) Nerve to obturator internus. Nerve to obturator internus. Nerve to quadratus femoris. Pudendal nerve. Internal pudendal artery. Sciatic Foramina By Dr. Hassan Rezk September 19, 2024 13 LOWER LIMB Contents of Greater sciatic foramen Sciatic Foramina By Dr. Hassan Rezk September 19, 2024 14  Contents of Lesser sciatic foramen   LOWER LIMB         Sciatic Foramina By Dr. Hassan Rezk September 19, 2024 15  Injury of Sciatic Nerve Clinical correlation LOWER LIMB Commonest 1) Piriformis Syndrome: spasm in piriformis e.g.: ice skaters, cyclists, and rock climbers Cause 2) Stab wound in gluteal region or posterior compartment of thigh. Commonest Any part of its course. site 1. Hamstring muscles. Muscles 2. All leg muscles. paralyzed 3. All foot muscles. 1. Weakness in Extension of hip (Gluteus maximus is still functioning especially if the injury is away from inferior gluteal nerve). Motor loss 2. Weakness in Flexion of knee (sartorius & Gracilis are still functioning). 3. Loss of Dorsiflexion, plantarflexion, inversion & eversion of foot. Sciatic Foramina By Dr. Hassan Rezk September 19, 2024 16  Case Scenario LOWER LIMB Sciatic Foramina By Dr. Hassan Rezk September 19, 2024 17 LOWER LIMB Reference ISBN: 978-0-7020-5131-9 ISBN: 978-07817-7525-0 ISBN: 978-1-60913-446-4 Copyright© 2015, 2010, 2005 by Copyright© 2010, by Lippincott Copyright© 2012, by Lippincott Churchill Livingstone, an imprint of Williams & Wilkins, a Wolters Williams & Wilkins, a Wolters Elsevier Inc. Kluwer business. Kluwer business. Chapter 6. Chapter 5. Chapter 10. Sciatic Foramina By Dr. Hassan Rezk September 19, 2024 18 LOWER LIMB Sciatic Foramina By Dr. Hassan Rezk September 19, 2024 19