BILATERAL SUPRASCAPULAR ENTRAPMENT NEUROPATHY: A CASE REPORT

Suprascapular nerve entrapment is an uncommon condition. It is not often included in the differential diagnosis of shoulder pain and is therefore probably underdiagnosed. The nerve may be compressed at either the suprascapular notch or spinalglenoid notch.

The clinical presentation is often unremarkable with poorly localised pain over the posterolateral shoulder, which tends to become persistent. There is often a history of minor trauma or repeated exertion. Weakness of external rotation and abduction may be present and in advanced cases there is wasting of the supraspinatous and infraspinatous muscles. There may be tenderness over the suprascapular notch. Diagnosis is established with EMG findings of delayed nerve root conduction and/or denervation potentials in the involved muscles.