Suprascapular neuropathy: Difference between revisions

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*Most often seen in athletes due to repetitive overhead arm movements
*Most often seen in athletes due to repetitive overhead arm movements


==Causes==
===Causes===
*Structural (direct nerve compression)
*Structural (direct nerve compression)
**Paralabral cyst
**Paralabral cyst
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==Clinical Features==
==Clinical Features==
[[File:Grant 1962 664.png|thumb|Nerve roots that supply sensation to the upper extremities.]]
*Shoulder pain
*Shoulder pain
*Weakness of shoulder abduction, flexion, and internal rotation
*Weakness of shoulder abduction, flexion, and internal rotation
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==Differential Diagnosis==
==Differential Diagnosis==
===Upper extremity [[peripheral nerve syndromes]]===
{{Upper extremity peripheral nerve syndromes}}
 
====Median Nerve Syndromes====
*[[Median Mononeuropathy (Carpal Tunnel Syndrome)|Carpal tunnel syndrome]]
*[[Pronator teres syndrome]]
*[[Anterior interosseous neuropathy]]
 
====Ulnar Nerve Syndromes====
*[[Ulnar neuropathy at the elbow and wrist]]
 
====Radial Nerve Syndromes====
*[[Radial neuropathy at the spiral groove]] (ie. "Saturday night palsy")
*[[Posterior interosseous neuropathy]]
 
====Proximal Neuropathies====
*[[Suprascapular neuropathy]]
*[[Long thoracic neuropathy]]
*[[Axillary neuropathy]]
*[[Spinal accessory neuropathy]]
*[[Musculocutaneous neuropathy]]
 
====Other====
*[[Brachial plexopathy]]
*[[Cervical radiculopathy]]


==Evaluation==
==Evaluation==

Latest revision as of 14:44, 5 February 2022

Background

The right brachial plexus with its short branches, viewed from anterior view. (Suprascapular labeled at upper left.)
Suprascapular and axillary nerves of right side, seen from posterior view.
  • Suprascapular nerve (C5, 6) branches from the superior trunk and innervates the supraspinatus and infraspinatus nerves
  • Compression of the nerve in the suprascapular notch (proximal, supraspinatus and infraspinatus affected) or at spinoglenoid ligament (distal, only infraspinatus affected)[1][2]
  • Most often seen in athletes due to repetitive overhead arm movements

Causes

Clinical Features

Nerve roots that supply sensation to the upper extremities.
  • Shoulder pain
  • Weakness of shoulder abduction, flexion, and internal rotation
  • May see atrophy of supraspinatus and infraspinatus muscles

Differential Diagnosis

Upper extremity peripheral nerve syndromes

Median Nerve Syndromes

Ulnar Nerve Syndromes

Radial Nerve Syndromes

Proximal Neuropathies

Other

Evaluation

  • Plain films to evaluate for fracture, callus, or bone tumor
  • MRI and EMG outpatient

Management

  • Nonoperative - activity modification, avoid overhead activities, physical therapy, NSAIDs, sling
  • Operative for space occupying lesions

Disposition

  • Discharge with orthopedic follow up

See Also

External Links

References

  1. ↑ https://www.orthobullets.com/shoulder-and-elbow/3063/suprascapular-neuropathy?expandLeftMenu=true
  2. ↑ Boykin RE et al. Suprascapular Neuropathy. JBJS. 2010;92:2348-2368.
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