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Updated: May 9, 2025

Author Spotlight: Development and Application of a Novel Suture Technique for Annular Fibrosus Repair in Percutaneous Transforaminal Endoscopic Discectomy
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Quadrangular Space Decompression.

Lucy E Meyer1, Kier M Blevins1, Jason S Long1

  • 1Department of Orthopaedic Surgery, Duke University Medical Center, Durham, NC, USA.

Video Journal of Sports Medicine
|May 1, 2025
PubMed
Summary
This summary is machine-generated.

Quadrangular space syndrome (QSS) can cause pain and nerve issues in overhead athletes. Surgical decompression effectively relieves these symptoms when nonoperative treatments fail.

Keywords:
axillary nerveposterior circumflex humeral arteryquadrangular spacequadrangular space syndrometeres minor

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Area of Science:

  • Orthopedic Surgery
  • Sports Medicine
  • Anatomy

Background:

  • Quadrangular space syndrome (QSS) involves compression of the axillary nerve and posterior circumflex humeral artery (PCHA).
  • Commonly affects overhead athletes, presenting with neurogenic pain, paresthesias, and potential vascular complications.
  • Pathologies include thrombosis, aneurysm, and emboli due to PCHA compression.

Purpose of the Study:

  • To evaluate the efficacy of surgical decompression for quadrangular space syndrome.
  • To assess outcomes in patients with severe neurogenic or vascular compromise refractory to nonoperative management.

Main Methods:

  • Surgical decompression indicated after failed conservative treatment (physical therapy, injections).
  • Incision made over the posterior border of the deltoid.
  • Identification and release of fibrous bands compressing the axillary nerve and PCHA, with protection of surrounding vessels.

Main Results:

  • Successful decompression of the axillary nerve and PCHA.
  • Resolution of neurogenic symptoms, including pain and paresthesias, observed at the first postoperative visit.

Conclusions:

  • QSS is a rare but debilitating condition, particularly in overhead athletes.
  • Surgical decompression is a viable option for persistent QSS symptoms.
  • Operative intervention provides relief from both neurogenic and vascular symptoms.