Lumbar Spine Flashcards
Cervical # Thoracic # Lumbar
7 Cervical, 12 Thoracic, 5 Lumbar
Kyphosis
exaggerated posterior curve
Lordosis
exaggeration of post concavity
Scoliosis
lateral curvature
Iliac Crest
L4- level of crest
S2- PSIS
7 Bony projections on Vertebrae
superior articulating process (2), inferior AP (2), spinous process, transverse process (2)
Lamina vs Pedicle vs Par interarticularis- space between articular process
Lamina- TP to SP vs Pedicle- Neural arch to body
Lumbarization
vs
Sacralization
S1 is detached, acts as own vertebra
vs
fusion of L5 to S1
5 Layers of IVD
- Neurovascular capsule
- Outer annulus
- Inner annulus
- Nucleus pulposus
- fibrocartilaginous endplate
Annulus Fibrosus
10-20 rings of fibrocartilage,
protects/isolates nucleus,
attaches to VB, fibrocartilaginous endplate, ALL/PLL
IVD
Weakness- posterolateral annulus
ALL
Anterior Longitudinal Ligament