Derrangement in McKenzie Method
Derangement is the most common subclassifications for MDT (Mechanical diagnosis and therapy) introduced by Robin McKenzie. Robin McKenzie introduced a new protocol to diagnose and treat the spine and extremities and purposed the new system of classification in 1981. Education and self reliance by patient has always been the major component of MDT technique.
Derangement is 1 of the 4 classification of MDT.