Arthritis is an inflammatory condition of joints. There are several types of arthritis and the most common type is osteoarthritis or wear-and-tear arthritis. Arthritis affects various joints in the body and the arthritis in hand affects the joint at the base of the thumb. Arthritis may also affect the joints of other digits and the symptoms include swelling, pain, stiffness, and malformation all of which interfere with use of the hand.
Arthritis is often seen in people aged over 40 years however may affect people of all ages. The most common cause is wear-and-tear, as you age you are more prone to develop arthritis. Also, traumatic injuries, fractures and joint dislocation make you more susceptible to develop arthritis. Certain types of arthritis are more common in women than men as in the thumb arthritis.
There are over several types of arthritis. The most common are:
Osteoarthritis: Osteoarthritis is also called as degenerative joint disease; this is the most common type of arthritis, which occurs often in older people. This disease affects cartilage, the tissue that cushions and protects the ends of bones in a joint. With osteoarthritis, the cartilage starts to wear away over time. In extreme cases, the cartilage can completely wear away, leaving nothing to protect the bones in a joint, causing bone-on-bone contact. Bones may also bulge, or stick out at the end of a joint, called a bone spur.
Osteoarthritis causes joint pain and can limit a person’s normal range of motion (the ability to freely move and bend a joint). When severe, the joint may lose all movement, causing a person to become disabled. Disability most often happens when the disease affects the spine, Knees, and Hips.
Rheumatoid arthritis: This is an auto-immune disease in which the body’s immune system (the body’s way of fighting infection) attacks healthy joints, tissues, and organs. Occurring most often in women of childbearing age (15-44), this disease inflames the lining (or synovium) of joints. It can cause pain, stiffness, swelling, and loss of function in joints. When severe, rheumatoid arthritis can deform, or change, a joint. For example, the joints in a person’s finger can become deformed, causing the finger to bend or curve.
Rheumatoid arthritis affects mostly joints of the hands and feet and tends to be symmetrical. This means the disease affects the same joints on both sides of the body at the same time and with the same symptoms. No other form of arthritis is symmetrical. About two to three times as many women as men have this disease.
Post-traumatic arthritis: Arthritis developing following an injury to hand, wrist or elbow is called as post-traumatic arthritis. The condition may develop years after the trauma such as a fracture, severe sprain, or ligament tears.
Psoriatic arthritis: This form of arthritis occurs in some persons with psoriasis, a scaling skin disorder, affecting the joints at the ends of the fingers and toes. It can also cause changes in the fingernails and toenails. Back pain may occur if the spine is involved.
Your doctor can usually make the diagnosis of thumb arthritis by examining the thumb. X-rays of the joint may be taken to know the severity of the disease and to determine any bone spurs or calcium deposits.
Nonsurgical treatment methods for relieving pain in an arthritic joint include activity modification, pain medications, and use of splints, and steroid injections. Surgery is usually considered if nonsurgical treatment fails to give relief. There are different surgical procedures that can be used and may include:
Synovectomy: This surgery is usually indicated for early cases of inflammatory arthritis where there is significant swelling (synovitis) that is causing pain or is limiting the range of motion of digits and thumb. Synovectomy is a surgical removal of the inflamed synovium (tissue lining the joint). The procedure may be performed using arthroscopy.
Arthroplasty: In this procedure, your surgeon removes the affected joint and replaces it with an artificial implant. In patients with post-traumatic arthritis and osteoarthritis where the bone is hard and demand on the hand is moderate, new ceramic implants are used. These are not desirable to use for severely damaged or unstable joint. In patients with inflammatory arthritis where the bone is not strong enough and the demand on the hand is low, older silicone rubber joints are generally used. These can be used for more severe joint damage and instable joint.
Arthrodesis: A fusion, also called an arthrodesis involves removal of the joints and fusing the bones of the joint together using metal wires or screws. Even though this surgery eliminates all motion at the base of the thumb, the resulting fusion is very hard.
This surgery is usually indicated when the joints are severely damaged, when there is limited mobility, damage to the surrounding ligaments and tendons, failed previous arthroplasty, and when heavy manual use is expected.
Your surgeon will discuss the options and help you decide which type of surgery is the most appropriate for you.
Following surgery, a rehabilitation program, often involving a physical therapist may help to regain hand strength and movement. You may need to use a post-operative splint for a while after surgery that helps to protect the hand while it heals. You may need to restrict activities for a minimum of 12 weeks to let the joint reconstruction heal properly. Although recovery is slow, you should be able to resume your normal activities within few months of surgery.
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