Where are Bouchard's nodes predominantly located?

Bouchard's nodes are predominantly located on the proximal interphalangeal joints (PIPs) of the fingers. These bony outgrowths are often associated with osteoarthritis and can occur as a result of the degenerative changes affecting the cartilage and bone of the joints.

While Bouchard's nodes specifically refer to changes at the PIPs, Heberden's nodes are found at the distal interphalangeal joints (DIPs). The MCP joints, or metacarpophalangeal joints, and the wrists are not typically associated with Bouchard's nodes; instead, they are more commonly involved in different pathological processes or joint deformities. Therefore, identifying the location of Bouchard's nodes as the proximal interphalangeal joints is key to recognizing their role in osteoarthritis and understanding the clinical manifestations associated with this condition.