Final answer:
Injuries to the shoulder joint can lead to various lesions, including inflammation, tears, and adhesive capsulitis. Shoulder dislocations often occur in an inferior direction when the upper limb is fully abducted.
Step-by-step explanation:
Injuries to the shoulder joint commonly occur due to repetitive use of the upper limb in activities like throwing, swimming, and racquet sports. These activities can lead to inflammation of the bursa or muscle tendons, tears of the glenoid labrum or rotator cuff, and degeneration of the shoulder joint. One specific injury that can occur is shoulder dislocation, which often happens in an inferior direction when force is applied to the humerus while the upper limb is fully abducted.
After a shoulder dislocation, various lesions can result. These may include acute or chronic inflammation, tear of the glenoid labrum, degeneration or tears of the rotator cuff, and adhesive capsulitis (commonly known as 'frozen shoulder'). Inflammatory responses to shoulder injuries can also lead to the formation of scar tissue, which can reduce shoulder mobility.