This has changed with a study from North America.  They reconfirmed the finding that smokers do not recover as much as non smokers after surgery, but went on to show that this is related to how much you smoke. I.e. The more you smoke, on average, the less you recovery after surgery, currently the only treatment for CSM.
Speaking at the 31st Annual Meeting of the North American Spine Society, David Kusin the lead author suggested smoking limits the natural healing process. The exact way in which smoking impairs recovery is unclear. Some experts believe the affect is due to hardening of the arteries (accelerated by smoking and responsible for conditions such as heart attacks). Their theory is that once the compression is removed, and blood flow returns to support the healing process, in smokers the is less effective.
What ever the exact mechanism, the impact is clear. Smoking is harmful and smoking is something you can change.
1. Kusin et al. The effect of smoking on Spinal Cord Healing following surgical treatment of cervical myelopathy. Spine June 2015
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