The American Academy of Orthopaedic Surgeons states that "acupuncture or chiropractic manipulation can also be attempted" prior to surgery for stenosis.  [from    http://orthoinfo.aaos.org/topic.cfm?topic=A00329 accessed on 6/8/09, American Academy of Orthopaedic Surgeons website, "Lumbar Spinal Stensosis"]

Drs. Gudavalli and Kruse report on a 33-year-old man who complained of severe neck pain and spasms, pain radiating down his left arm and upper back, and associated numbness in his fingers. Clinical examination and MRI radiological examination find that a moderate-sized left posterolateral disc herniation at C6/C7 which is causing severe foraminal stenosis.  The patient was treated a total of 15 times in 10 weeks. Subjective findings using a pain scale and objective examination findings supported a good clinical outcome. At 2-year follow-up, subjective and objective findings remained stable.

Description and image: http://www.spineuniverse.com/conditions/spinal-stenosis/what-spinal-stenosis

The goal of Cox® Technic is to open the canal space that is narrowed in spinal stenosis. Stenosis sufferers appreciate the relief.

http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1397818/