Osteoarthritis of the Hands

Osteoarthritis can affect any joint in the body, including the hands. Osteoarthritis of the hand most commonly affects three parts of the hand: the base of the thumb, the joints closest to the fingertips, and the middle joints of the fingers. In order to manage your symptoms effectively, early diagnosis and treatment are essential.

Causes

Osteoarthritis is a degenerative joint disease, meaning that the cartilage covering the ends of the bones that form a joint gradually deteriorates. Mechanical wear and tear that builds up over time is the most common cause of osteoarthritis, but it can also develop due to an injury.

When an injury changes the alignment of a joint, it can damage the cartilage more rapidly. In the hands, this damage causes enlarged joints and crooked fingers.

Symptoms of Hand Osteoarthritis

Many symptoms of hand osteoarthritis are similar to the general symptoms of arthritis. They include:

• Stiffness
• Swelling
• Pain
• Limited range of motion
• Bony nodules
• Aching at the base of the thumb

If you suffer from hand osteoarthritis, you may notice that it has become more difficult to grasp objects or make a pinching motion, like the one you'd make to pick up a penny. Manual dexterity, fine motor control, and physical function are compromised, making usual daily tasks, such as turning keys, opening doorknobs, and writing, difficult to perform.

Diagnosis of Hand Osteoarthritis

A diagnosis is made based on a physical exam and an X-ray. Your healthcare provider will ask questions about your symptoms, including when they began. Your description of pain, stiffness, swelling, and limitations in joint movement will help your healthcare provider assess your condition.

Hand osteoarthritis also has visible characteristics, including bony nodules. Small nodules and swellings that develop near the middle joint of the fingers are referred to as Bouchard's nodes. When the nodules are located at the fingertip, they are referred to as Heberden's nodes.

Carpal bossing most commonly appears as a bump on the back of the hand. It is created by a small area of osteoarthritis occurring at the junction of the long hand bones and the small wrist bones.

An X-ray will be taken to further examine the physical damage. It will reveal any cartilage loss, bone spurs, and joint damage.

Based on the physical evidence and X-ray evidence, your healthcare provider will have enough information to detect and accurately diagnose osteoarthritis. There are no blood tests used to diagnose osteoarthritis. Blood tests would only be ordered to rule out other types of arthritis.

Treatment

With hand osteoarthritis, early intervention is essential. Acknowledging your symptoms early and treating them promptly is important to prevent irreversible joint damage and progression of the disease. Treatment for hand osteoarthritis is meant to relieve pain and improve function. Treatment options include:

• Oral medications such as NSAIDs or analgesics
• Steroid injections
• Splinting
• Physical or occupational therapy

A clinical trial showed that participants who complied with a structured rehabilitation program exhibited improved dexterity and range of motion compared with those who underwent traditional occupational therapy.

Surgery is also an option, but it's typically considered a last resort if the aforementioned treatment options are ineffective. Surgery to treat hand osteoarthritis includes procedures that:

• Remove cysts or excess bony growths
• Fuse the joint
• Replace the joint