Search results
Results from the WOW.Com Content Network
The nerve lies at first behind the axillary artery, [4] and in front of the subscapularis, [1] and passes downward to the lower border of that muscle.. It then winds from anterior to posterior around the neck of the humerus, in company with the posterior humeral circumflex artery, [2] through the quadrangular space (bounded above by the teres minor, below by the teres major, medially by the ...
Injury of axillary nerve (axillary neuropathy) is a condition that can be associated with a surgical neck of the humerus fracture. It can also be associated with a dislocated shoulder [ 1 ] or with traction injury to the nerve, which may be caused by over-aggressive stretching or blunt trauma that does not result in fracture or dislocation. [ 2 ]
The quadrangular space is a clinically important anatomic space in the arm as it provides the anterior regions of the axilla a passageway to the posterior regions. In the quadrangular space, the axillary nerve and the posterior humeral circumflex artery can be compressed or damaged due to space-occupying lesions or disruption in the anatomy due to trauma.
Axillary nerve dysfunction is any disorder caused by damage to the axillary nerve. [1] The axillary nerve is a branch of the brachial plexus that innervates the deltoid and teres minor muscles. This nerve can be injured or damaged in a variety of ways - penetrating injury such as knife or gunshot wounds, surgical trauma, stretch injury (common ...
Furthermore, following an anterior shoulder operation; damage to the axillary nerve is possible and has been documented by various surgeons, thus causing axillary nerve palsy. [10] Other possible causes include: deep infection, pressure from a cast or splint, fracture of the humerus , or nerve disorders in which the nerves become inflamed.
The deltoid is innervated by the axillary nerve. [7] The axillary nerve originates from the anterior rami of the cervical nerves C5 and C6, via the superior trunk, posterior division of the superior trunk, and the posterior cord of the brachial plexus. [8] Deltoid Muscle Labelled
The most commonly involved nerves are the suprascapular nerve, musculocutaneous nerve, and the axillary nerve. [9] [10] The signs of Erb's palsy include loss of sensation in the arm and paralysis and atrophy of the deltoid, biceps, and brachialis muscles. [6] "The position of the limb, under such conditions, is characteristic: the arm hangs by ...
Complications may include axillary nerve or axillary artery injury. [3] The cause is generally a fall onto the arm or direct trauma to the arm. [3] Risk factors include osteoporosis and diabetes. [4] [5] Diagnosis is generally based on X-rays or CT scan. [3] It is a type of humerus fracture. [6] A number of classification systems exist. [5]