Scapulothoracaalinen

Scapulothoracaalinen refers to the scapulothoracic joint, which is not a true anatomical joint but rather a functional articulation between the scapula (shoulder blade) and the thoracic cage (rib cage). It is formed by the serratus anterior muscle which holds the scapula against the rib cage. This "joint" allows for gliding movements of the scapula over the thorax, facilitating a wider range of motion for the arm.

The primary movements occurring at the scapulothoracic articulation are elevation, depression, protraction, retraction, upward rotation, and downward rotation of the scapula. These movements are crucial for overhead reaching, throwing, and many other upper limb activities. The coordinated action of muscles like the trapezius, rhomboids, and serratus anterior enables these scapular motions, which in turn contribute to the overall kinematics of the shoulder complex.

Dysfunction or pain related to the scapulothoracic articulation can significantly impact shoulder function. Conditions such as scapular dyskinesis, which involves abnormal scapular movement or positioning, can lead to impingement syndromes, rotator cuff tears, and other shoulder pathologies. Rehabilitation often focuses on improving scapular stability and muscle activation to restore proper scapulothoracic rhythm.