On this page

New symptoms after injury need attention

Significant new neck or back pain after a fall or other trauma warrants prompt professional assessment when the spine is ankylosed. New weakness, numbness or difficulty walking after injury requires urgent assessment. Tell the team about known DISH, previous spinal surgery and existing imaging. A minor-looking incident does not exclude a serious injury.1

Those decisions require the clinical team. An old diagnosis of DISH cannot establish that new pain is harmless, and an earlier plain radiograph may not settle a suspected injury.1

Why rigidity changes the injury problem

Bone bridges can connect spinal segments into a long rigid lever. A force that would normally be distributed through moving joints may instead act across a fracture in that lever. The fracture can involve more than the visible front of a vertebra and may be unstable. Specialist assessment must consider the complete injury, not just a small break visible on one view.1

In Okada's nationwide retrospective survey, the population was 285 patients already identified with DISH and ankylosed-spine injury. Low-energy falls, delayed recognition and later neurological deterioration were documented. This is evidence about selected injured patients, not a lifetime fracture probability for everyone with DISH.2

Neurological complications can have different causes

Nerve-root compression and spinal-cord compression are different clinical problems. Weakness, altered sensation, hand clumsiness or walking changes need assessment to locate the cause. Symptoms should not automatically be attributed to the large anterior bridges associated with DISH.

Coexisting OPLL, ossification behind the vertebral bodies within the spinal canal, or other spinal disease may matter. It appeared in Chung's selected cervical cohort, demonstrating coexistence rather than proving that all DISH involves the canal. A clinician connects examination findings to imaging and considers whether there is an acute injury, chronic compression or another cause.3

Treatment depends on stability and function

The DGOU recommendations emphasize the difficulties of recognizing and managing unstable fractures in ankylosing spinal disorders. Their evidence includes both AS and DISH, with professional experience and informal consensus. Stabilization and, when indicated, decompression address mechanical and neurological problems. They do not remove the underlying systemic DISH tendency.1

Selected nonoperative care also exists. A 2025 retrospective study described 21 patients with 22 thoracolumbar extension fractures without posterior element involvement, managed under a specialist protocol. It excluded cervical fractures, neurological deficits and unstable injuries needing immediate surgery. Healing was reported over follow-up focused on union, with mean 11 months and a broad range. There was no direct surgical comparator.4

That narrow experience cannot establish that an unassessed injury is safe to manage at home. Its text has inconsistent demographic counts, adding caution about numerical interpretation. Bracing, activity and follow-up decisions remain clinical choices. Nor can a cement procedure for a selected compression fracture be assumed to stabilize a distraction injury through an ankylosed spine.1

Questions for the treating team include: what structures are injured, is the fracture stable, is there nerve or cord involvement, and what would trigger reassessment? Ask how healing, alignment and neurological function will be followed, and which risks apply to your general health and injury pattern.

References

  1. Reinhold M et al. Global Spine Journal. 2018;8(2 Suppl):56S–68S. doi:10.1177/2192568217736268. Source ↩
  2. Okada E et al. Journal of Orthopaedic Science. 2019;24:601–606. doi:10.1016/j.jos.2018.12.017. PubMed ↩
  3. Chung YS et al. Yonsei Medical Journal. 2020;61:341–348. doi:10.3349/ymj.2020.61.4.341. Source ↩
  4. Do All Fractures in the Ankylotic Spine Really Require Surgical Intervention? Journal of Clinical Medicine. 2025;14:5599. doi:10.3390/jcm14155599. Source ↩