Items tagged “scapula”

9 results found
Article

Coracoclavicular joint

The coracoclavicular joint is a normal variant of the pectoral girdle, where the conoid tubercle of the clavicle appears enlarged or elongated, with a flattened inferior surface where it approximates the coracoid process of the scapula to form an articulation.  Epidemiology More common in Asia...
Article

Os acromiale

Os acromiale is an anatomical variant and represents an unfused accessory center of ossification of the acromion of the scapula. Epidemiology Os acromiale is relatively common, seen in ~8% (range 1-15%) of the population 1,2 and can be bilateral in 60% of individuals 5. Clinical presentation ...
Article

Scapular fracture

Scapula fractures are uncommon injuries, representing ~3% of all shoulder fractures. Epidemiology Associations Scapular fractures are often associated with other injuries due to the high energy trauma that is usually the underlying cause: clavicle fracture rib fracture sternal fracture sp...
Article

Glenoid labrum

The glenoid labrum is a fibrocartilaginous structure that attaches as a rim to the articular cartilage of the glenoid fossa and serves to deepen and increase the surface area of the glenoid. In this capacity, it acts as a static stabilizer of the glenohumeral joint, resisting anterior and poster...
Article

Coracoid process fracture

Coracoid process fractures are an uncommon type of scapular fracture. They do not often occur in isolation and are often associated with acromial, clavicular, or other scapular fractures, as well as glenohumeral dislocation or acromioclavicular joint injury. Epidemiology Coracoid fractures rep...
Article

Spinoglenoid notch

The spinoglenoid notch is located on the superior and posterior aspect of the scapula. Gross anatomy Relations and/or boundaries The spinoglenoid notch is a connection between the infraspinatus fossa and the supraspinatus fossa, which are divided by the scapular spine. The notch is formed la...
Article

Suprascapular vein

The suprascapular vein drains the posterior structures of the scapula including the supraspinatus and infraspinatus muscles. Gross anatomy Course Running adjacent to the suprascapular nerve and artery it passes through the suprascapular notch in a number of configurations: above the transver...
Article

Glenoid bare spot

The glenoid bare spot, or glenoid bare area, is a small central or slightly eccentric area of the inferior glenoid fossa, where the articular cartilage is markedly thinner or completely absent 2. It is considered to be a normal aging-related phenomenon 1. Epidemiology The glenoid bare spot can...
Article

Tubercle of Assaki

The tubercle of Assaki, also known as the tubercle of Asskay 3, is a small bony protuberance of the central part of the glenoid fossa with accompanying thinning of articular cartilage in this location 1. Pathology It is presumably caused by the constant pressure of the humeral head exerted on ...