Joint replacement surgery in the wrist is less common than hip or knee replacement but can be an option if you have painful arthritis that doesn’t respond to other treatments. In wrist joint replacement surgery, the damaged areas of the wrist bones are removed and replaced with artificial components. The damaged areas are removed with the help of orthopedic instruments.
The wrist is a more complicated joint than the knee or the hip. On the hand side of the wrist, there are two rows of bones at the hand’s base. There are four bones in each row. The bones in these rows are known as carpals. The long thin bones of the hand radiate out from one row of carpals and form the basis of the thumb and finger.
The ulna and the radius are the two bones of the forearm that form a joint with the first row of carpals.
The ends of the bones are covered with an elastic tissue, known as cartilage. Cartilage creates a slick surface that enables the bones to move smoothly when they move against one another.
If the cartilage is worn away or damaged by infection, injury, or disease, the bones themselves will rub against each other, wearing out the ends of the bones. This causes an arthritic, painful condition.
Osteoarthritis is the most common form of arthritis that results from a gradual wearing away of the cartilage covering on bones.
Rheumatoid arthritis of the wrist and hand. There are various orthopedic implants used in the surgery that can be obtained from orthopedic implant exporters.
Rheumatoid arthritis is a chronic inflammatory disease of the joints that results in pain, swelling and stiffness. Rheumatoid arthritis generally affects several joints on both the left and right sides of the body.
Both forms of arthritis may affect the strength of the hand and fingers, making it difficult to grip or pinch.
The typical candidate for wrist replacement surgery has severe arthritis but doesn’t need to use the wrist to meet heavy demands in everyday use. The main reasons for wrist replacement surgery are to relieve pain and to maintain function in the hand and wrist. Orthopedic devices are the important part of the wrist replacement surgery as without its use surgery is not possible. There are various orthopedic instrument manufacturers from whom these devices can be accessible.
Wrist replacement surgery may help recover or retain wrist motions. It may also improve the ability to perform daily routine activities, especially if there is arthritis in the shoulder and elbow. During any total joint replacement, the worn-out ends of the bones are removed and replaced by an artificial joint (prosthesis) with the help of orthopedic devices.
In some cases, fusing the bones of the wrist together will eliminate or reduce pain and improve grip strength. However, the wrist will not be able to bend, if the bones are fused together.
There are several different types of orthopedic implants. Most have two components, one for each side of the joint. These components are manufactured using metal. A high-quality plastic, called polythene, is used as a spacer between the two metal components. Newer ortho implantLCP Compact hand Set designs try to replicate the anatomy of the wrist.
One component is inserted into the radius of the forearm. The part of this component that faces into the wrist joint has a curve that fits a second component placed in the wrist side. The component that inserts into the hand bone (the carpal component) has a plain surface that faces the first component. It inserts into a carpal bone through two shorter stems or one long stem. A plastic spacer fits between the components in joint. Spacers come in different sizes so that they can match the hand. A spacer is generally flat on one side and rounded on the other. This design enables it to fit the carpal component while it rocks on the radial component, creating a more natural motion of wrist.