An older adult patient with osteoarthritis presents to the clinic. On examination, the nurse practitioner notes the presence of multiple Heberden nodes. Which joints are affected?
Group of answer choices
- Carpometacarpal joints
- Proximal interphalangeal joints
- Metacarpophalangeal joints
- Distal interphalangeal joints
The correct answer is: Distal interphalangeal joints
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Explanation:
Heberden nodes are bony enlargements that occur at the distal interphalangeal (DIP) joints, which are the joints closest to the fingertips. These nodes are a classic sign of osteoarthritis and are often seen in older adults as a result of chronic joint wear and tear.
Other options:
Carpometacarpal joints: These joints are at the base of the thumb, and while they can be affected by osteoarthritis, they are not associated with Heberden nodes.
Proximal interphalangeal joints (PIP joints): These joints can be involved in osteoarthritis, but Bouchard nodes (not Heberden nodes) are typically found here.
Metacarpophalangeal joints (MCP joints): These joints are less commonly affected in osteoarthritis and are more often involved in rheumatoid arthritis.
Thus, Heberden nodes are specifically seen in the distal interphalangeal (DIP) joints.
