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Suprascapular notch


Cause, clinical and ultrasound findings

  • The suprascapular nerve runs through the suprascapular notch, innervating the supraspinatus and infraspinatus muscles.

  • The nerve provides sensory innervation to the acromioclavicular joint and glenohumeral joint.

  • The notch may be identified with the probe in the coronal plane just medial to the superior glenoid brim. The nerve is identified as several round hypoechoic bundles within the notch.

  • Suprascapular nerve block is a means of treating shoulder pain but may also be used before hydrodilatation of the shoulder joint.

Equipment and drugs

Syringe Needle Lidocaine 1% Triamcinolone acetate 40 mg/mL Bupivacaine hydrochloride 0.25% (Marcaine)
5 mL 23G Blue 1 to 3 mL
2 mL 21G Long Green or 10-cm 21G for larger patients Recommended for pain relief; not necessary for temporary block
40 mg (1 mL)		 1 mL

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