What is distal interphalangeal osteoarthritis?

What is distal interphalangeal osteoarthritis?

The DIP joint is the first knuckle from the top of the finger. It connects the distal phalanx and middle phalanx, which are the two bones at the tip of the finger. Experiencing DIP joint pain is often a sign of a type of arthritis, such as osteoarthritis or psoriatic arthritis.

What causes hard lumps on finger joints?

Damage from wear and tear and friction can cause bony overgrowths, known as osteophytes (aka bone spurs), to form along the margins of the joint. In the finger joints, these bone growths may form visible bumps, which are the Heberden’s or Bouchard’s nodes.

What is interphalangeal joint osteoarthritis?

What is interphalangeal joint arthritis in the hands? Interphalangeal joint arthritis is arthritis of the fingers. Each finger on your hand, with the exception of the thumb, has three phalanges (bones that make up the fingers) separated by two joints known as interphalangeal joints.

What kind of arthritis causes nodules on fingers?

Osteoarthritis sometimes causes bony nodules at the middle joint of the finger (Bouchard’s nodes) or at the end joint of the finger (Heberden’s nodes) (see Figure 2). Osteoarthritis at the basilar joint can cause swelling, a bump, and a deep, aching pain at the base of the thumb.

What type of joint is the distal interphalangeal joint?

Interphalangeal joints of the hand

Type	Synovial hinge joint; uniaxial
Articular surfaces	Head of proximal phalanx, base of middle phalanx, head of middle phalanx, and base of distal phalanx
Ligaments	Medial collateral ligament, lateral collateral ligament
Innervation	Proper palmar digital nerves

Where are the distal interphalangeal joints?

Distal Interphalangeal Joint (DIP Joint) The DIP joint in the finger is located at the tip of the finger, just before the finger nail starts. Common problems at this joint include Mallet Finger, Jersey Finger, arthritis, mucous cysts, and fractures.

What is swan neck?

Swan-neck deformity is a bending in (flexion) of the base of the finger, a straightening out (extension) of the middle joint, and a bending in (flexion) of the outermost joint.

What does osteoarthritis in the hands look like?

Nodules: Bony lumps may form on the middle joint of the finger (Bouchard’s nodes) or at the joint near the fingertip (Heberden’s nodes). Joint deformity: Bone changes, loss of cartilage, unstable or loose ligaments and swelling can make your finger joints large and misshapen.

What is the deformity of the distal interphalangeal joints with osteoarthritis called?

Heberden’s nodes are hard bony lumps in the joints of your fingers. They are typically a symptom of osteoarthritis. The lumps grow on the joint closest to the tip of your finger, called the distal interphalangeal, or DIP joint.

What does osteoarthritis in hands feel like?

The most common symptoms are pain and stiffness. Over time, they may get worse. The pain might become constant and sharper, and the stiffness could keep you from bending your finger joints all the way.

What bones make up the distal interphalangeal joint?

“proximal interphalangeal joints” (PIJ or PIP), those between the first (also called proximal) and second (intermediate) phalanges. “distal interphalangeal joints” (DIJ or DIP), those between the second (intermediate) and third (distal) phalanges.

Does rheumatoid arthritis affect distal interphalangeal joints?

The distal interphalangeal (DIP) joints, the joints closest to the tips of the fingers and thumb, are less likely to be affected by rheumatoid arthritis. When DIP joints are affected, it is typically only after symptoms appear in the MCP or PIP joints.

What causes hard swelling in distal interphalangeal joints?

Heberden nodes (hard or bony swellings in the distal interphalangeal joints) along with a deviated distal finger are a classic finding in osteoarthritis. The patient has a variant form of the condition known as erosive osteoarthritis that is common in postmenopausal women.

How does osteoarthritis affect the middle finger?

At the middle joint of a finger (the proximal interphalangeal or PIP joint) All forms of hand arthritis can cause stiffness, swelling, pain, and deformity. Osteoarthritis sometimes causes bony nodules at the middle joint of the finger (Bouchard’s nodes) or at the end joint of the finger (Heberden’s nodes) (see Figure 2).

Which is the most common joint affected by nodules?

The metatarsophalangeal joint is most commonly affected (podagra). 7 Monosodium urate monohydrate crystal deposition leads to stiffness, swelling, and periarticular subcutaneous nodules (tophi). Radiographic findings include erosive, sclerotic margins with lytic “rat bite” lesions.

What kind of pain is caused by osteoarthritis?

Osteoarthritis sometimes causes bony nodules at the middle joint of the finger (Bouchard’s nodes) or at the end joint of the finger (Heberden’s nodes) (see Figure 2). Osteoarthritis at the basilar joint can cause swelling, a bump, and a deep, aching pain at the base of the thumb.