Which term refers to severe displacement of a bone from its joint and tearing of ligaments, tendons and articular capsules; also known as luxation?

• A. Dislocation
• B. Neuroma
• C. Subluxation
• D. Fascia

Answer: (A)

Dislocation is when a bone is completely displaced from its joint, and the supporting structures—the ligaments, tendons, and joint capsule—are torn or damaged in the process. Luxation is simply another term for this same condition. The important idea is that the bone no longer sits in its normal joint surface, unlike a partial misalignment called a subluxation, where the joint surfaces are still partly in contact. Neuroma is a nerve growth, and fascia is the connective tissue around muscles, so neither fits the scenario of a joint being fully displaced.