What nerve goes through Spinoglenoid notch?
The suprascapular nerve passes through the notch beneath the superior transverse scapular (suprascapular) ligament, which bridges the notch. The suprascapular artery and vein pass directly over the nerve above the ligament.
What is a Spinoglenoid notch?
The spinoglenoid notch is a connection between the infraspinatus fossa and the supraspinatus fossa, which are divided by the scapular spine. The suprascapular nerve and artery passes through the notch on their course over the scapula.
What causes Spinoglenoid notch cyst?
Spinoglenoid notch cysts are a relatively uncommon cause of shoulder pain and weakness, are often associated with labral tears, and commonly result in compression of the suprascapular nerve.
What is Spinoglenoid cyst?
Spinoglenoid cysts are a rare cause of suprascapular neuropathy of compressive etiology in which the patient may present with shoulder pain and muscle hypotrophy. MRIs are the imaging modality of choice showing location, size, and extent of the lesion for preoperative assessment.
What muscles are innervated by the lower Subscapular nerve?
- trapezius muscle.
- latissimus dorsi muscle.
- levator scapulae muscle.
- rhomboid minor muscle.
- rhomboid major muscle.
- pectoralis major muscle.
- pectoralis minor muscle.
- serratus anterior muscle.
What goes through Spinoglenoid notch?
The spinoglenoid notch is located between the base of the spine of scapula and the glenoid process of the scapula that connects the infraspinatus fossa with the supraspinatus fossa, as a passage for the suprascapular nerve and artery, bounded by the inferior transverse scapular ligament (spinoglenoid ligament).
What goes through spinoglenoid notch?
What is the subscapularis muscle?
The subscapularis is the largest, strongest muscle of the rotator cuff. The rotator cuff muscles are important in shoulder movement and help maintain glenohumeral joint stability. The subscapularis muscle lies at the anterior surface of the scapula.
What causes ganglion cyst in the shoulder?
The exact cause of a ganglion cyst is unknown, but many paralabral cysts develop after a labral tear. Many medical professionals believe a ganglion cyst is formed when the natural joint lubricating fluid, known as synovial fluid, leaks or is pushed out into the common stalk, causing a fluid-filled sac to form.
What is infraspinatus atrophy?
Infraspinatus muscle atrophy usually occurs after full-thickness rotator cuff tear in conjunction with atrophy of other rotator cuff muscles. Patients present with shoulder pain and weakness, particularly of external rotation.
Which of the following nerve roots contribute to the lower subscapular nerve?
The lower subscapular nerve, also known as the inferior subscapular nerve, is the third branch of the posterior cord of the brachial plexus….
|Lower subscapular nerve|
|Innervates||Subscapularis and teres major muscle|
|Latin||Nervus subscapularis inferior|
What does lower subscapular nerve supply?
The lower subscapular nerve, also known as the inferior subscapular nerve, arises from the posterior cord of the brachial plexus and supplies the subscapularis muscle and contributes fibers to the teres major muscle.
Are there ganglion cysts in the spinoglenoid notch?
Spinoglenoid notch ganglion cysts (SGNCs) are a location-specific form of ganglion cysts that arise in the region of the spinoglenoid notch. Article:
How does a spinoglenoid cyst affect the SSN?
A spinoglenoid cyst (SGC) can result in compression of the suprascapular nerve (SSN) in the spinoglenoid notch or even in the suprascapular notch. Suprascapular nerve entrapment caused by supraglenoid cyst compression.
Is the spinoglenoid notch related to a SLAP lesion?
Spinoglenoid cyst (SGC) is a ganglion arising in the spinoglenoid notch and is thought to be related to SLAP lesion. This cyst often compresses the suprascapular nerve in the spinoglenoid notch. Symptomatic cysts require surgical treatment when conservative treatment fails.
What causes suprascapular nerve entrapment in spinoglenoid cysts?
Suprascapular nerve entrapment caused by supraglenoid cyst compression. The association of these cysts with SLAP lesions is widely reported and is considered to be formed by a 1-way-valve mechanism, where the synovial fluid passes through the torn labrum and accumulates to form a cyst.