1. Expert Opinion and Controversies in Sports and Musculoskeletal Medicine: The Diagnosis and Treatment of Spondylolysis in Adolescent Athletes 
Christopher J. Standaert, MD, Stanley A. Herring, MD 
Archives of Physical Medicine and Rehabilitation 
Volume 88, Issue 4, Pages (April 2007)
DOI: /j.apmr
Copyright © 2007 American Congress of Rehabilitation Medicine and the American Academy of Physical Medicine and Rehabilitation Terms and Conditions

2. Fig 1
(A) Axial image and (B) sagittal reformation of a CT showing an early stage pars fracture (arrows). Note that the fracture is incomplete with no separation and indistinct margins. The pars are sclerotic bilaterally.
Archives of Physical Medicine and Rehabilitation  , DOI: ( /j.apmr )
Copyright © 2007 American Congress of Rehabilitation Medicine and the American Academy of Physical Medicine and Rehabilitation Terms and Conditions

3. Fig 2
Axial image of a CT showing terminal pars defects bilaterally (arrows). The fractures have well-corticated margins with separation.
Archives of Physical Medicine and Rehabilitation  , DOI: ( /j.apmr )
Copyright © 2007 American Congress of Rehabilitation Medicine and the American Academy of Physical Medicine and Rehabilitation Terms and Conditions