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Coracoid process is a small hooked structure located on the scapular neck that arises anteriorly and serves as attachment for the coracoacromial, coracoclavicular and coracohumeral ligament, as well as for tendons of the coracobrachial, small pectoral and short head of the biceps brachii muscle.
Fracture of the coracoid process occurs more frequently than previously thought and is well known to occur in various anatomical sites [1, 2].
Specific measurements were made for IR and ER at 0[degrees] abduction, IR and ER at 90[degrees] abduction, forward elevation, and cross-body adduction measured as the linear distance (centimeters) between the antecubital fossa and the contralateral coracoid process with the arm maximally passively horizontally adducted.
Laterally, pectoralis minor inserts onto the coracoid process, and the neurovascular bundle can be found lying posterior to the muscle and inferior and medial to the coracoid process.
The resulting radiograph shows the relationship of the glenoid fossa and the head of the humerus as well as the coracoid process.
These two ligaments extend from the inferior surface of the distal third of the clavicle to the coracoid process of the scapula and, in effect, function to support the upper extremity to the clavicle and trunk.
The brachial plexus and its components are vulnerable to damage as they pass the base of the coracoid process and adjacent inferior capsule of the glenohumeral joint, particularly with anteroinferior instability (Ciullo 1996).
From a skeletal perspective, the thoracic outlet region involves the size and shape of the superior thoracic aperture (thoracic outlet), the first rib and/or the presence of a cervical rib (present in approximately one percent of the population), the clavicle, and the adjacent scapula--namely the coracoid process.
Affected areas include the articular and spinous processes of the vertebrae, the glenoid fossa and coracoid process of the scapulae, the distal articular surface of the radius, the margin of the greater sciatic notch of the pelvic bones, and the condyles of the femora and tibiae (Table 4).
A computed tomographic (CT) scan showed a sharply demarcated lesion in the base of the coracoid process with a high-density nidus (Figure 1, right).
The acromiocoracoid distance is the distance between the tip of acromion process and tip of coracoid process (fig.
d) Weight and height are independent factors for determining the distance between the coracoid process and the posterior cord both in adduction as well as in abduction.