Lumbosacral Spine

Page Index: Anatomy Lumbar| Anatomy Sacrum| Lumbosacral transitional vertebra 

Normal: AP

Normal: Lateral

Normal: oblique


6. Inferior articular process

7. Spinous process.

8. Interlaminar space

9. Intervertebral disc

10. Scotty dog sign


The pars interarticularis or simply pars (plural: partes interarticulares) is the part of a vertebra located between the superior and inferior articular processes. 

Sacrum

1. Sacral ala 

2. Superior articular process of sacrum 

3. First sacral tubercle 

4. Sacral foramen 

5. Sacral arcuate lines 

6. Sacroiliac joint 

7. Pelvic sacral foramina

Lumbosacral transitional vertebra 

Incomplete sacralization of the L5 left transverse process and sacrum with pseudoarthrosis (Castellvi type IIa)

Lumbar spine anatomy

Lumbar spine (checklist)

Radiopaedia: Lumbosacral transitional vertebra