Preparing for Total Joint Replacement | 7 Shoulder replacement Your shoulder is where three bones come together: • The Ⓕ upper arm bone (humerus) • The Ⓖ shoulder blade (scapula) • The Ⓗ collarbone (clavicle) The shoulder is a “ball-and-socket joint,” which means the end of one bone (ball) fits into a hollow in another bone (socket). The shoulder socket is called the glenoid. Cartilage covers and protects the surfaces of your bones where they meet. When the cartilage wears out, the bones rub together and cause pain. In shoulder replacement surgery, the surgeon removes worn or damaged parts and replaces them with metal or plastic parts. This restores the smooth surface of your shoulder and helps it move without pain. Questions for my care team: Ⓗ Ⓖ Ⓕ
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