Our expert says:
Orthopaedic Specialist Forum
The only condition in the shoulder where a nerve can be pinched is suprascapular nerve compression in the suprascapular notch. The most common condition for which cortisone injections in the shoulder are given is rotator cuff impingement.
If a cortisone injection is going to be successful it will happen after two or three days ( see more on our website: http://www.shoulderinstitute.co.za/publications/SHOULDER%20INJECTIONS_WM.pdf
One of the resons for the injection not working would be that it is not in the correct site or that the diagnosis is not correct
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