Dorsal shift and expansion of the spinal cord after expansive open-door laminoplasty

J Spinal Disord. 1997 Aug;10(4):282-7.

Abstract

We investigated dorsal shift and anteroposterior spinal cord diameter after expansive open-door laminoplasty, comparing pre- and postoperative computed tomographic myelographic images to clarify the relationships between surgical outcome and these changes. Dorsal shift occurred at the midcervical spine in cervical spondylotic myelopathy (CSM) but was less extensive in ossification of the posterior longitudinal ligament (OPLL). Spinal cord anteroposterior diameter expanded for OPLL but did not for CSM. Correlation of outcome and dorsal shift was not significant for OPLL or CSM. Correlation of outcome and expansion was significant for OPLL, but not for CSM.

MeSH terms

  • Adult
  • Aged
  • Aged, 80 and over
  • Cervical Vertebrae / diagnostic imaging
  • Cervical Vertebrae / physiopathology
  • Cervical Vertebrae / surgery
  • Female
  • Humans
  • Male
  • Middle Aged
  • Myelography
  • Ossification of Posterior Longitudinal Ligament / diagnostic imaging
  • Ossification of Posterior Longitudinal Ligament / physiopathology
  • Ossification of Posterior Longitudinal Ligament / surgery
  • Postoperative Period
  • Severity of Illness Index
  • Spinal Cord / diagnostic imaging
  • Spinal Cord / physiopathology
  • Spinal Cord / surgery*
  • Spinal Cord Diseases / diagnostic imaging
  • Spinal Cord Diseases / physiopathology
  • Spinal Cord Diseases / surgery
  • Spinal Osteophytosis / diagnostic imaging
  • Spinal Osteophytosis / physiopathology
  • Spinal Osteophytosis / surgery
  • Tomography, X-Ray Computed
  • Treatment Outcome