Anatomy of the Glenoid Labrum of the Scapula Bone ; Overview, Location, Structure, Funtion, Clinical скачать в хорошем качестве

Anatomy of the Glenoid Labrum of the Scapula Bone ; Overview, Location, Structure, Funtion, Clinical

The glenoid labrum is a fibrocartilaginous structure located in the shoulder joint, where it plays a key role in stabilizing and cushioning the joint. Here’s a detailed look at its anatomy: Structure and Location Fibrocartilaginous Ring: The glenoid labrum is a ring of dense, fibrous cartilage that surrounds the rim of the glenoid cavity of the scapula. Attachment: It attaches firmly to the margin of the glenoid cavity, enhancing the depth and curvature of the cavity. Functions Joint Stability: By deepening the glenoid cavity, the labrum provides a more secure fit for the head of the humerus, increasing the stability of the shoulder joint. Shock Absorption: The labrum acts as a cushion, absorbing shocks and reducing the impact on the bones during movements of the shoulder. Attachment Site: It serves as an attachment site for several ligaments, including the glenohumeral ligaments and the tendon of the long head of the biceps brachii muscle. Clinical Significance Labral Tears: Injuries to the glenoid labrum, such as tears, are common in athletes and can result from acute trauma or repetitive shoulder movements. Symptoms may include pain, instability, and limited range of motion. SLAP Lesions: A specific type of labral tear is the Superior Labrum Anterior and Posterior (SLAP) lesion, which involves the upper part of the labrum where the biceps tendon attaches. Diagnosis and Treatment: Labral injuries are typically diagnosed through physical examination and imaging studies like MRI. Treatment options range from conservative management, such as physical therapy, to surgical repair. The glenoid labrum is essential for the overall function and stability of the shoulder joint, allowing for a wide range of movements while protecting the joint from wear and tear. #GlenoidLabrum