Disease: Arthritis, basal joint

Controlling Your Arthritis

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Thumb arthritis is common with aging, and occurs when cartilage wears away from the ends of the bones that form your thumb joint — also known as the carpometacarpal (CMC) joint.

Thumb arthritis can cause severe pain, swelling, and decreased strength and range of motion, making it difficult to do simple tasks, such as turning doorknobs and opening jars. Treatment generally involves a combination of medication and splints. Severe thumb arthritis might require surgery.

Source: http://www.mayoclinic.com

Controlling Your Arthritis

Subscribe to our Controlling Your Arthritis e-newsletter for tips to manage arthritis.

Pain is the first and most common symptom of thumb arthritis. Pain can occur at the base of your thumb when you grip, grasp or pinch an object, or use your thumb to apply force.

Other signs and symptoms might include:

  • Swelling, stiffness and tenderness at the base of your thumb
  • Decreased strength when pinching or grasping objects
  • Decreased range of motion
  • Enlarged or bony appearance of the joint at the base of your thumb

When to see a doctor

See your doctor if you have persistent swelling, stiffness or pain at the base of your thumb.

Source: http://www.mayoclinic.com

Controlling Your Arthritis

Subscribe to our Controlling Your Arthritis e-newsletter for tips to manage arthritis.

Thumb arthritis commonly occurs with aging. Previous trauma or injury to the thumb joint also can cause thumb arthritis.

In a normal thumb joint, cartilage covers the ends of the bones — acting as a cushion and allowing the bones to glide smoothly against each other. With thumb arthritis, the cartilage that covers the ends of the bones deteriorates, and its smooth surface roughens. The bones then rub against each other, resulting in friction and joint damage.

The damage to the joint might result in growth of new bone along the sides of the existing bone (bone spurs), which can produce noticeable lumps on your thumb joint.

Source: http://www.mayoclinic.com

Controlling Your Arthritis

Subscribe to our Controlling Your Arthritis e-newsletter for tips to manage arthritis.

During a physical exam, your doctor will ask about your symptoms and look for noticeable swelling or lumps on your joints.

Your doctor might hold your joint while moving your thumb, with pressure, against your wrist bone. If this movement produces a grinding sound, or causes pain or a gritty feeling, the cartilage has likely worn down, and the bones are rubbing against each other.

Imaging techniques, usually X-rays, can reveal signs of thumb arthritis, including:

  • Bone spurs
  • Worn-down cartilage
  • Loss of joint space

Source: http://www.mayoclinic.com

Controlling Your Arthritis

Subscribe to our Controlling Your Arthritis e-newsletter for tips to manage arthritis.

To ease pain and improve joint mobility, try to:

  • Modify hand tools. Consider purchasing adaptive equipment — such as jar openers, key turners and large zipper pulls — designed for people with limited hand strength. Replace traditional door handles, which you must grasp with your thumb, with levers.
  • Apply cold. Icing the joint for five to 15 minutes several times a day can help relieve swelling and pain.

Animation showing toothbrushes with and without foam handles.

Source: http://www.mayoclinic.com

Controlling Your Arthritis

Subscribe to our Controlling Your Arthritis e-newsletter for tips to manage arthritis.

Factors that can increase your risk of thumb arthritis include:

  • Female sex.
  • Age above 40 years.
  • Obesity.
  • Certain hereditary conditions, such as joint ligament laxity and malformed joints.
  • Injuries to your thumb joint, such as fractures and sprains.
  • Diseases that change the normal structure and function of cartilage, such as rheumatoid arthritis. Although osteoarthritis is the most common cause of thumb arthritis, rheumatoid arthritis can also affect the CMC joint, usually to a lesser extent than other joints of the hand.
  • Activities and jobs that put high stress on the thumb joint.

Source: http://www.mayoclinic.com

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