Which type of joint is most easily dislocated?

The ball-and-socket joint is most susceptible to dislocation. Joint dislocation, or luxation (from the Latin luxare, meaning “to put out of joint”), occurs when the there is a drastic movement of two bone ends out of their normal end-to-end position. The most frequently dislocated joint is the shoulder joint. Since the socket is shallow and the joint is loose, allowing for the tremendous amount of mobility, there is also the greatest possibility of dislocation.