TY - CHAP M1 - Book, Section TI - Skeletal Trauma: Upper Extremity A1 - Wenokor, Cornelia A1 - Blacksin, Marcia F. A2 - Tehranzadeh, Jamshid Y1 - 2016 N1 - T2 - Basic Musculoskeletal Imaging AB - The shoulder girdle consists of the clavicle, scapula, and humerus. It connects the upper extremity to the axial skeleton with only one true joint, the sternoclavicular joint. Between the scapula and the thorax, there is a muscular connection, allowing for extended mobility, compared to the limited mobility of the pelvic girdle. The joints of the shoulder girdle are the glenohumeral or shoulder joint, the acromioclavicular (AC) joint, and the sternoclavicular joint. The scapula is a complex bone and serves as a muscle attachment site. Seventeen muscles surround the scapula, supporting movement and stabilizing the shoulder. The scapula extends from the second to the seventh rib and has 30° anterior tilt. Scapular fractures (Figure 2-1) are relatively uncommon. They require high-energy and associated injuries, such as other fractures, pulmonary contusions, pneumothorax, neurovascular injuries, and spine injuries, which occur in 35–98% of patients.1,2 SN - PB - McGraw-Hill Education CY - New York, NY Y2 - 2024/10/07 UR - accessphysiotherapy.mhmedical.com/content.aspx?aid=1127375892 ER -