Congenital Lumbar Spinal Stenosis

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CLSS MRI AP diameter.jpg
Congenital Lumbar Spinal Stenosis
Synonym Developmental Lumbar Spinal Stenosis, Short Pedicle Syndrome.


Congenital (or developmental) lumbar spinal stenosis (CLSS) is a developmental narrowing of the spinal canal. Pedicle length is shorter and a cross-sectionally smaller spinal canal area. Affected individuals tend to present in the fourth or fifth decade of life with neurogenic complications without the presence of significant degenerative changes.

Epidemiology

The incidence of CLSS is unknown. Cheung et al did MRI imaging on 66 patients awaiting surgery for spinal stenosis, and 82 asymptomatic subjects. All were of Chinese ethnicity. All 66 subjects in the patient group had DSS while none of the 82 asymptomatic subjects had developmental canal narrowing.[1]

References

  1. โ†‘ Cheung et al.. Radiographic indices for lumbar developmental spinal stenosis. Scoliosis and spinal disorders 2017. 12:3. PMID: 28239663. DOI. Full Text.

Literature Review