From the simple to the complex.
Learn more about our shoulder specialists. Shoulder replacements are designed to remove portions of the bones of the shoulder joint that are arthritic missing cartilage. The shoulder joint is a ball and socket joint, with a ball or humeral head that is part of the humerus and a flat surface which is called the socket which is part of the shoulder blade Figure 1.
In a standard shoulder replacement, the ball portion of the shoulder the humeral head is replaced by a metal ball and the socket is replaced by a plastic piece Figure 2. The big differences between a reverse prosthesis and a standard shoulder replacement is that in a reverse prosthesis, the ball is placed on the socket side of the joint.
The socket is then placed on the arm side where it is supported by a metal stem in the arm bone the humerus Figure 4. Thus the ball and socket are reversed from what occurs in nature. How does it stay together? Fortunately the reverse prosthesis can be put into place with screws on the socket side which hold it into the bone of the shoulder blade Figures 3 and 4.
The ball then screws into the plate which has been attached to the socket Figure 3.
The part of the prosthesis placed into the arm bone is secured with cement which bonds the metal to the bone within a few minutes Figure 4. The plastic socket piece then is press fit into the end of the stem where it is securely fixed by locking into the metal piece.
This allows the socket to rotate on the ball so that the shoulder motion can be restored Figure 5. The muscles around the shoulder also help keep the reverse prosthesis in place. Why should a person get a reverse prosthesis instead of a standard shoulder replacement?
A standard total shoulder replacement depends upon muscles and tendons around the shoulder joint to be intact. The muscles attach to the shoulder blade and turn into tendons which attach to the shoulder. These muscles and their tendons function to move the shoulder and are together called the rotator cuff.
When these tendons become extensively torn so that they do not attach to the bone any longer, the shoulder often does not function normally.
The loss of the rotator cuff can produce pain and also loss of motion. A normal shoulder replacement is designed to work only if those tendons are intact. In contrast, a reverse prosthesis is designed for situations where the rotator cuff is torn or malfunctioning.Becker Orthopedic Appliance Company Orthotic/Prosthetic Manager salaries - 1 salaries reported $, / yr AMQ Medical Equipment Prosthetics/Orthotics Practitioner salaries - 1 salaries reported.
A prosthetic device (prosthesis) is an artificial device that replaces a missing body part. Orthotic and prosthetic services are prescribed for patients requiring orthotic bracing or artificial limbs. Nov 14, · An Orthotic and Prosthetic Technician (O and P Technician) with late-career experience which includes employees with greater than 20 .
Williamsport Orthopedic & Prosthetic Co Inc. 32 likes · 2 were here.
Manufacture and fit artificial limbs, braces, and diabetic/orthopedic shoes and inserts. Upstate Orthopedics has a full staff of orthopedic hand and wrist microsurgeons with experience providing relief for carpal tunnel syndrome, flexor or extensor tendon injury, bite injury and congenital deformities that require specialized training.
Minnesota Prosthetics & Orthotics is part of Twin Cities Orthopedics. Twin Cities Orthopedics prosthetics and orthotics services are provided by our Minnesota Prosthetics & Orthotics .