Question

which of the following is often the first site of erosion of the wrist in rheumatoid arthritis?
triquetrum
ulnar styloid process
scaphoid
lunate

Explanation:

In rheumatoid arthritis of the wrist, the ulnar styloid process is often the first site of erosion due to its anatomical location and exposure to mechanical stress and inflammatory processes.

Answer:

ulnar styloid process