Shoulder Replacement

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The shoulder joint, where your upper arm connects to your body, is classified as a ball-and-socket joint. In this joint, the rounded end of the upper arm bone, known as the humerus, fits into the curved structure located on the outer side of your shoulder blade. The integrity of this joint is maintained by ligaments connecting the bones and tendons linking muscles to the bone. Additionally, a layer of tissue called cartilage separates the bones, preventing friction between them.This ball-and-socket configuration allows for a wide range of motion, including upward and downward movement, forward and backward mobility, as well as circular rotation.

Shoulder Replacement

Types of Shoulder Replacement Options:

1. Total Shoulder Replacement:

Commonly referred to as traditional shoulder replacement or arthroplasty, this procedure involves the replacement of the original ball-and-socket surfaces of the shoulder with prosthetics of similar shapes. Total shoulder replacement is a reliable option for alleviating severe shoulder arthritis. However, it may not be suitable for highly active individuals or those with damaged rotator cuff muscles.

2. Partial Shoulder Replacement:

In partial shoulder replacement, or hemiarthroplasty, the humeral head (upper arm bone) is replaced with a prosthetic ball while preserving the natural socket, known as the glenoid bone.

3. Reverse Shoulder Replacement:

Reverse shoulder replacement involves a reversal of the positions of the shoulder joint's ball and socket. It replaces the humerus's natural ball with a prosthetic socket, while the shoulder's original socket is fitted with a prosthetic ball. This procedure is suitable for individuals who are ineligible for traditional shoulder replacement due to damaged rotator cuffs. It alters the joint's center of rotation, allowing other muscles to compensate for the lack of rotator cuff function.


Why Replacement May Be Necessary:

Shoulder replacement surgery may be recommended if you have a condition causing significant pain and limiting the use of your arm. Common reasons for shoulder replacement include:

Severe shoulder injuries like fractures

  • Advanced arthritis
  • When conservative treatments like medication and physical therapy do not yield sufficient improvement, surgery may be considered.