suprascapular nerve


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Related to suprascapular nerve: subscapular nerve, Lateral pectoral nerve

su·pra·scap·u·lar nerve

[TA]
arises from the upper trunk of the brachial plexus (fifth and sixth cervical spinal nerves), passes downward parallel to the cords of the brachial plexus, then through the scapular notch, supplying the supraspinatus and infraspinatus muscles, and also sending branches to the shoulder joint. It is vulnerable to injury in fractures of the middle third of the clavicle; a lesion of the suprascapular nerve results in a loss of lateral rotation at the shoulder so that when relaxed the limb rotates medially (waiter's tip position); ability to initiate abduction is also affected.
Synonym(s): nervus suprascapularis [TA]

suprascapular nerve

Etymology: L, supra + scapulae, shoulder blades
one of a pair of nerve branches from the cords of the brachial plexus. It supplies the shoulder joint, scapula, and associated muscles.

su·pra·scap·u·lar nerve

(sū'pră-skap'yū-lăr nĕrv) [TA]
Arises from the upper trunk of the brachial plexus (fifth and sixth cervical spinal nerves), passes downward parallel to the cords of the brachial plexus, then through the scapular notch, supplying the supraspinatus and infraspinatus muscles, and also sending branches to the shoulder joint. It is vulnerable to injury in fractures of the middle third of the clavicle; a lesion of the suprascapular nerve results in a loss of lateral rotation at the shoulder so that when relaxed the limb rotates medially (waiter's tip position); ability to initiate abduction is also affected.
Synonym(s): nervus suprascapularis [TA] .

suprascapular nerve

A mixed shoulder nerve originating in the superior trunk of the brachial plexus and composed of axons from spinal cord segments C5–C6. It runs through the scapular notch under the superior transverse scapular ligament.

Sensory

It innervates the glenohumeral joint.

Motor

It innervates the supraspinatus and infraspinatus muscles.

See also: nerve
References in periodicals archive ?
The cutaneous branch of the human suprascapular nerve.
It may pose a potential risk factor for the suprascapular nerve ent rapment syndrome.
Neuropathies affecting the suprascapular nerve are typically the result of traction or compression from repetitive overhead activities, rotator cuff tears, displaced labral tears in conjunction with cysts, and space-occupying lesions at the suprascapular or spinoglenoid notch [4,6,7,12,14,15,20].
18) Additionally the nerve transfer can improve shoulder stability and abduction because it is additive with the spinal accessory to suprascapular nerve transfer.
Upper margin of scapula Costal cartilage of first (1996) rib Relationship to structures at the root Author/Year Nerve supply of neck Present study Suprascapular nerve Superficial to subclavian (2007) vessels and brachial plexus Sherry et al.
In my hands the suprascapular nerve is blocked in two to three passes; the axillary usually after the first pass.
Skurja M, Monlux JH 1985: Case studies: the suprascapular nerve and shoulder dysfunction.
Selective entrapment of suprascapular nerve at spinoglenoid notch due to intrinsic and extrinsic factors leads to isolated infraspinatus dysfunction.
Early, persistent, or progressive medial rotation contracture and glenohumeral deformity is always addressed at the time of primary plexus microneurosurgical reconstruction and suprascapular nerve reinnervation procedures.
It may be possible to prolong duration in this group by using a suprascapular nerve catheter 2 and single-shot axillary nerve block.
The suprascapular notch and the overlying STSL constitute a narrow foramen, with inflexible and often sharp edges, through which the suprascapular nerve must pass (Williams et al.