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sacroiliac .pptx
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- 2. Bony pelvis • Formedby • Sacrum, coccyx and pair of hip bones
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- 5. Lumbosacral Joint • Betweenvertebra L5 and the base of the sacrum • In between bodies • Intervertebral disc • Anterior and posterior longitudinal ligaments • In between the articular process • Inferior articular process of L5 • and • Superior articular process of S1 • Ligaments • Supraspinal, interspinal and ligamentum flava
- 6. Lumbosacral Joint • Inbetween bodies • Intervertebral disc • Anterior and posterior longitudinal ligaments
- 7. Lumbosacral Joint -Zygapophyseal joints • In between the articular process • Inferior articular process of L5 • and • Superior articular process of S1 • Ligaments • Supraspinal, interspinal and ligamentum flava
- 8. Lumbosacral Joint • Iliolumbarligament • From transverse process of L5 • To inner lip of the posterior portion of the iliac crest • Limits the rotation of L5 on S1 • Assists the articular processes in preventing L5 from moving anteriorly on S1
- 9. Applied anatomy • Spondylolysis •A defect allowing part of a vertebral arch to be separated from its body • Spondylolisthesis • Sliding of the body of the L5 vertebrae anteriorly on the sacrum
- 10. Sacro-iliac joint • Compoundjoint • Consists of • Anterior sacro-iliac joint • Synovial joint • Posterior sacro-iliac joint • Syndesmosis (fibrous joint)
- 11. Sacroiliac joint • Bones •Sacrum • Ilium • Articular surfaces • Auricular shaped surface of sacrum • Auricular shaped surface of ilium • Tuberosities
- 12. Hip bone -Sacropelvic surface • Iliac tuberosity • Which gives attachment to interosseous sacroiliac ligament • Auricular surface for sacrum • To form sacroiliac joint • Pelvic surface • Form the wall of pelvic cavity Auricular surface (articulates with Sacrum to form Sacroiliac joint) Iliac tuberosity
- 13. Sacrum • Sacral tuberosity •Auricular surface Auricular surface Sacral tuberosity
- 14. Anterior sacro-iliac joint •Type • Synovial joint • Variety • Plane • Articular surfaces • Auricular surfaces • Limited mobility • Main role is • Transmitting the weight of the body to hip bones
- 15. Anterior sacroiliac joint •Articulating surfaces of sacroiliac joint differ • Iliac part - joint surfaces are covered by fibrocartilage • Sacral part - surfaces are covered by hyaline cartilage • Hyaline cartilage is 3-5 times thicker than the fibrocartilage (so, this joint belong to synovial)
- 16. Sacroiliac joint -Ligaments • Sacro iliac ligaments • Anterior sacroiliac ligament • Posterior sacroiliac ligament • Interosseous ligament
- 17. Posterior sacroiliac joint •Type • Fibrous • Variety • Syndesmosis • Articular surfaces • Tuberosities of sacrum and ilium • Ligament interosseous ligament • Posterior sacroiliac ligament
- 18. Anterior sacroiliac ligament •Anterior-inferior thickening of the fibrous capsule • Extends between • Anterior and inferior borders of iliac auricular surface • Anterior border of the sacral auricular surface
- 19. Interosseous sacroiliac ligament •Short ligament • Lies deep to posterior interosseous sacroiliac ligament • Attaches between • Lateral sacral crest • and • Iliac tuberosity
- 20. Posterior sacroiliac ligament •Very tough and strong ligament • Connects • PSIS with the lateral crest of the third and fourth segment of the sacrum
- 21. Sacro-iliac joint • Relations •Posterior • Erector spinae, Gluteus maximus • Anterior • Psoas major, iliacus • Obturator, femoral nerves and lumbosacral trunk • Bifurcation of common iliac artery • Formation of common iliac vein • ureter
- 22. Pubic symphysis • Secondarycartilaginous joint
- 23. Pubic symphysis • Ligaments •Superior pubic ligament • Connects superior aspects of the pubic bodies • Inferior pubic ligament
- 24. Sacrococcygeal Joint • Type •Secondary cartilaginous joint • Bones • Sacrum & coccyx • Ligaments • Anterior, posterior and lateral sacrococcygeal ligaments