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Related Concept Videos

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Clinical manifestationsPeripheral Arterial Disease (PAD) manifests through a range of symptoms, from the characteristic intermittent claudication to atypical presentations and severe complications in advanced stages. Intermittent claudication, a hallmark symptom of PAD, presents as exercise-induced muscle pain that typically resolves within minutes of rest. This pain is reproducible and stems from inadequate blood flow, leading to the accumulation of lactic acid produced during anaerobic...
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Nine muscles are involved in arm movements. Two of these, the pectoralis major and latissimus dorsi, originate from the axial skeleton and are called axial muscles. The other seven originate from the scapula and are called the scapular muscles.
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DefinitionDiabetic neuropathy is nerve damage caused by long-standing diabetes mellitus. It results directly from prolonged high blood sugar levels.PathophysiologyThe pathophysiology of diabetic neuropathy involves both metabolic and vascular disturbances triggered by chronic hyperglycemia.Metabolic injury: Elevated glucose levels activate the polyol pathway within nerve cells, leading to the accumulation of sorbitol and fructose. This increases oxidative stress, disrupts normal nerve...
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The subclavian artery transitions into the axillary artery as it exits the chest and enters the axillary region. This artery is critical for supplying blood to the shoulder area, including the head of the humerus, through the humeral circumflex arteries. As the vessel continues into the upper arm or brachium, it becomes the brachial artery. This artery plays a key role in vascularizing the brachial region and bifurcates at the elbow into several branches. These branches include the deep...
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The sympathetic chain ganglia, also known as the sympathetic trunk ganglia or paravertebral ganglia, are a series of ganglia located bilaterally on either side of the spinal column. These ganglia serve as relay stations for the sympathetic nervous system. Preganglionic neurons originating in the spinal cord project their axons to the sympathetic chain ganglia. Within the ganglia, these preganglionic fibers synapse with postganglionic neurons.The postganglionic neurons of the sympathetic trunk...
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Related Experiment Video

Updated: Apr 20, 2026

The Modified Single-working Portal Technique Using Lasso-loop Stitch with Needle for Arthroscopic Subscapularis Repair
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Peri-articular suprascapular neuropathy.

P Clavert1, H Thomazeau2

  • 1Service de chirurgie du membre supérieur, CCOM, CHU de Strasbourg, Strasbourg, France.

Orthopaedics & Traumatology, Surgery & Research : OTSR
|December 3, 2014
PubMed
Summary

Suprascapular nerve entrapment causes chronic shoulder pain, often mimicking rotator-cuff tears. Early diagnosis and endoscopic surgery are key to preventing irreversible muscle damage.

Keywords:
CompressionElectrophysiological testingGanglion cystNeuropathiesSuprascapular nerve

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Area of Science:

  • Orthopedic Surgery
  • Sports Medicine
  • Neurology

Background:

  • Suprascapular nerve entrapment is a rare cause of chronic shoulder pain, often misdiagnosed as a rotator-cuff tear.
  • It accounts for approximately 2% of chronic shoulder pain cases.
  • Common causes include para-labral cysts and microtrauma in athletes.

Purpose of the Study:

  • To review the causes, diagnosis, and treatment of suprascapular nerve entrapment.
  • To highlight the importance of early diagnosis and intervention.

Main Methods:

  • Literature review of suprascapular nerve entrapment.
  • Analysis of common and less common etiologies.
  • Discussion of diagnostic challenges and treatment modalities.

Main Results:

  • Para-labral cysts and athletic microtrauma are the most frequent causes.
  • The role of concomitant rotator-cuff tears is still under investigation.
  • Endoscopic surgery is now the preferred treatment over open nerve release.

Conclusions:

  • Suprascapular nerve entrapment requires timely diagnosis to prevent muscle atrophy.
  • Endoscopic decompression is an effective treatment for nerve compression.
  • Further research is needed on the association with rotator-cuff tears.