Suprascapular neuropathy
Disclosures
- updated 12 Sep 2023:
Nothing to disclose
Updates to Article Attributes
Body
was changed:
Suprascapular neuropathy or suprascapular nerve entrapment occurs if the suprascapular nerve is compressed as it passes through the suprascapular notch or spinoglenoid notch.
Clinical presentation
Non-specific posterior shoulder pain and weakness.
Pathology
Aetiology
masses (e.g. ganglion cyst, paralabral cyst, tumour) in the suprascapular or spinoglenoid notch
traction injury (from sports with overhead action)
direct trauma
scapular or humeral fractures (e.g. bony fragments, callus formation)
complete and retracted supraspinatus tendon tear
Radiographic features
MRI
-
direct features of entrapment 3
nerve swelling with an increased cross-sectional diameter
signal changes of the nerve
visualisation of the causative factor
-
indirect features of entrapment via features of muscle atrophy or acute denervation 3
supraspinatus and infraspinatus muscles: compression at the suprascapular notch
infraspinatus muscle only: compression at the spinoglenoid notch
See also
-<p><strong>Suprascapular neuropathy</strong> or <strong>suprascapular nerve </strong><strong>entrapment</strong> occurs if the <a href="/articles/suprascapular-nerve">suprascapular nerve</a> is compressed as it passes through the <a href="/articles/suprascapular-notch">suprascapular notch</a> or <a href="/articles/spinoglenoid-notch">spinoglenoid notch</a>.</p><h4>Clinical presentation</h4><p>Non-specific posterior shoulder pain and weakness. </p><h4>Pathology</h4><h5>Aetiology</h5><ul>-<li>masses (e.g. <a href="/articles/ganglion-cyst">ganglion cyst</a>, <a href="/articles/paralabral-cyst-of-the-shoulder">paralabral cyst</a>, tumour) in the suprascapular or spinoglenoid notch</li>-<li>traction injury (from sports with overhead action)</li>-<li>direct trauma</li>-<li>-<a href="/articles/scapular-fracture">scapular</a> or humeral fractures (e.g. bony fragments, callus formation)</li>-<li><a href="/articles/anterior-shoulder-dislocation">anterior shoulder dislocation</a></li>-<li>complete and retracted supraspinatus tendon tear</li>- +<p><strong>Suprascapular neuropathy</strong> or <strong>suprascapular nerve entrapment</strong> occurs if the <a href="/articles/suprascapular-nerve">suprascapular nerve</a> is compressed as it passes through the <a href="/articles/suprascapular-notch">suprascapular notch</a> or <a href="/articles/spinoglenoid-notch">spinoglenoid notch</a>.</p><h4>Clinical presentation</h4><p>Non-specific posterior shoulder pain and weakness. </p><h4>Pathology</h4><h5>Aetiology</h5><ul>
- +<li><p>masses (e.g. <a href="/articles/ganglion-cyst">ganglion cyst</a>, <a href="/articles/paralabral-cyst-of-the-shoulder">paralabral cyst</a>, tumour) in the suprascapular or spinoglenoid notch</p></li>
- +<li><p>traction injury (from sports with overhead action)</p></li>
- +<li><p>direct trauma</p></li>
- +<li><p><a href="/articles/scapular-fracture">scapular</a> or humeral fractures (e.g. bony fragments, callus formation)</p></li>
- +<li><p><a href="/articles/anterior-shoulder-dislocation">anterior shoulder dislocation</a></p></li>
- +<li><p>complete and retracted supraspinatus tendon tear</p></li>
-<li>direct features of entrapment <sup>3</sup><ul>-<li>nerve swelling with an increased cross-sectional diameter</li>-<li>signal changes of the nerve</li>-<li>visualisation of the causative factor</li>- +<li>
- +<p>direct features of entrapment <sup>3</sup></p>
- +<ul>
- +<li><p>nerve swelling with an increased cross-sectional diameter</p></li>
- +<li><p>signal changes of the nerve</p></li>
- +<li><p>visualisation of the causative factor</p></li>
-<li>indirect features of entrapment via features of muscle atrophy or acute denervation <sup>3</sup><ul>-<li>supraspinatus and infraspinatus muscles: compression at the suprascapular notch</li>-<li>infraspinatus muscle only: compression at the spinoglenoid notch</li>- +<li>
- +<p>indirect features of entrapment via features of muscle atrophy or acute denervation <sup>3</sup></p>
- +<ul>
- +<li><p>supraspinatus and infraspinatus muscles: compression at the suprascapular notch</p></li>
- +<li><p>infraspinatus muscle only: compression at the spinoglenoid notch</p></li>
-</ul><h4>See also</h4><ul><li><a href="/articles/nerve-compression-syndrome">nerve entrapment syndrome</a></li></ul>- +</ul><h4>See also</h4><ul>
- +<li><p><a href="/articles/nerve-compression-syndrome">nerve entrapment syndrome</a></p></li>
- +<li><p><a href="/articles/spinoglenoid-notch-syndrome" title="Spinoglenoid notch syndrome">spinoglenoid notch syndrome</a></p></li>
- +</ul>
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