Dislocation = full dislocation of a bone from its original position
Subluxation = a partial dislocation of a bone from its original position but causing damage to the surrounding ligaments which leaves the ligaments permanentlystretched and therefore joint less stable and prone to further dislocations
Main causes: Breakdown and total loss of articularcartilage surrounding the bone surfaces within a joint. The joint will swell and the underlying bone will form rough bone spurs making movement painful and restricted
A dynamic lunge to return a drop shot in badminton, causing the muscle fibres to contract to quickly resulting in overstretch and tearing the tendon / fibres