![]() Type II glenoid neck fracture involves clavicular fracture and acromioclavicular dislocation as well. 17: Coronal bone window CT depicts Type I glenoid neck fracture line without displacement. While other causes include falling and pedestrian being struck by a moving vehicle.įig. Most extra-articular fractures occur in a violent setting and are result of high energy motor vehicle accident, Indirect trauma from a shoulder dislocation. Intraarticular fracture of the glenoid fossa typically occurs with a laterally directed impact of the humeral head on the glenoid rim.Ĭoracoid Process fractures are associated with direct blunt trauma, While indirect force by direct impaction of the humeral head into the glenoid fossa may cause glenoid and scapular neck fractures. Direct force may cause fractures in all regions of the scapula, They are frequently associated with other acute injuries. The most common cause of scapular fracture is high energy trauma therefore, Glenohumeral and acromioclavicular joints providing a functional link between the thorax and upper extremity. Works at the shoulder girdle as a base of motion/stability with the SSSC, Injury to these structures may result in the feared “floating shoulder”. The superior border of the scapula contains the suprascapular notch which contains the transverse scapular ligament. The superior shoulder suspensory complex (SSSC) is an osseous ligamentous ring made up by the scapula (coracoid process, Superior to the glenoid cavity is the coracoid process which projects anterolaterally and provides attachment to the coracoclavicular ligament. The lateral surface of the scapula contains the glenoid cavity composed of the glenoid neck and glenoid fossa which articulates with the head of the humerus forming the glenohumeral joint. The deltoid tubercle forms part of the spine of the scapula and serves as point of attachment of the deltoid. ![]() Which articulates with the acromial end of the clavicle forming the acromioclavicular joint. ![]() The spine of the scapula expands laterally and ends as the acromion, The body is the main part of the scapula,Īlso with triangular shape and inferiorly pointing apex. Flat triangular bone located on the posterolateral aspect of the thorax with the posterior surface divided by the scapular spine into the supraspinous and the larger infraspinous fossa and anterior surface containing a large subscapular fossa fossae provide attachment for muscles. ![]()
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