Reverse total shoulder replacement is a specialized procedure for shoulder surgery. In this operation, the surgeon removes the damaged components of the shoulder and substitutes them with artificial parts.
The shoulder joint comprises the upper arm bone (humerus) and the shoulder blade (scapula). The rounded end, known as the ball or humeral head, of the upper arm bone moves within a shallow socket in the shoulder blade. This unique structure allows for a wide range of motion in the shoulder. Additionally, cartilage, tendons, and ligaments surrounding the joint provide support and facilitate smooth movement.
In a reverse prosthesis, the key distinction lies in the placement of the ball and socket components within the shoulder joint. Unlike the natural arrangement, where the ball sits atop the upper arm bone, a reverse prosthesis positions the ball on the socket side of the joint. This unconventional orientation, hence the term “reverse,” involves placing the socket on the arm side, supported by a metal stem inserted into the arm bone (humerus).
Conversely, in a standard shoulder replacement surgery, the metal ball is affixed to the upper portion of the humerus, while the new plastic socket attaches to the shoulder blade. This configuration aligns more closely with the individual’s natural anatomy.
Before your surgery, it’s essential to consult with your healthcare provider regarding the necessary preparations:
In preparation for your surgery, your provider may request imaging tests to gain further insights into your shoulder condition. These tests may include: