Orthoteers homepage Advertise on Orthoteers
Orthoteers Junior Orthoteers Orthopaedic Biomechanics Orthopaedic World Literature Society Educational Resources Image Gallery About Orthoteers Orthoteers Members search

Spine Embryology

Vertebral Growth

Vertebral formation at 3-5 weeks with segmentation occurring at 6-8 weeks

Each vertebrae forms from 2 adjacent sclerotomes and so becomes an inter segment structure
Notochord degenerates but between vertebrae it persists to form the nucleus pulposus
During the 6th week chondrification occurs
Two centres in each centrum fuse at the end of the embryonic period resulting in one centre evident in the centrum after this period (defects here -> hemi vertebrae)
2 Centres in the neural arches fuse with each other and the centrum
The two 1/2's of the neural arch usually fuse in the first year and these to the centrum in ~ the 3rd to 6th year
At about puberty five secondary centres appear (upper and lower body, and one in the tip of the TPs and spinous process)

Ossification begins in the embryonic period and ends at about 25 years.
Longitudinal growth is via superior and inferior apophysis.

Horizontal growth is by periosteal apposition



This is a preview of the site content. To view the full text for this site, you need to log in.
If you are having problems logging in, please refer to the login help page.


© 2005-2007 Orthoteers.co.uk - last updated by Len Funk on 11 February 2005Medical Merketing and SEO by Blue Medical 
Biomet supporting orthoteersThe British Orthopedic Association supporting OrthoteersOrthoteers is a non-profit educational resource. Click here for more details
Anatomy & Biomechanics
Ankylosing Spondylitis
Back Pain
Cervical Spine Disc Disease & Cervi...
Cervical Spine Trauma
Disc Disease
Infections (+ TB)
Literature search on Waddell G
Other Cervical Spine Disorders
Rheumatoid Spondylitis
Sacrum & Coccyx
Scoliosis
Spinal Injuries - Principles
Spinal Stenosis
Spine Embryology
Spondylolysis & Spondylolisthesis
Waddells Nonorganic Signs
Hide Menu