From a traditional DVM standpoint, a subluxation is defined as which of the following?

From a traditional DVM standpoint, a subluxation is defined as which of the following?

• A. Something greater than a luxation
• B. Something less than a luxation
• C. A complete dislocation
• D. A fracture of a bone near a joint

Answer: (B)

In a traditional DVM view, the key difference is how much the joint is displaced. A subluxation means the joint is not in its normal alignment, but the articular surfaces still maintain some contact—it's a partial or incomplete dislocation. A luxation, by contrast, is a complete dislocation with no contact between the joint surfaces. So describing subluxation as something less than a luxation matches the idea of partial displacement. It isn’t about a fracture of a bone near the joint, which would be a different kind of injury altogether, and it isn’t a complete dislocation.

In a traditional DVM view, the key difference is how much the joint is displaced. A subluxation means the joint is not in its normal alignment, but the articular surfaces still maintain some contact—it's a partial or incomplete dislocation. A luxation, by contrast, is a complete dislocation with no contact between the joint surfaces. So describing subluxation as something less than a luxation matches the idea of partial displacement. It isn’t about a fracture of a bone near the joint, which would be a different kind of injury altogether, and it isn’t a complete dislocation.