MDT stands for Mechanical Diagnosis and Therapy. Assessment is the first step. Pain is a symptom, not a diagnosis. To successfully treat, one must first effectively evaluate. In fact, research has shown that the initial McKenzie assessment procedures performed by competent MDT clinicians are as reliable as costly diagnostic imaging (i.e., X-rays, MRIs) to determine the source of the problem and quickly identify those who will or will not respond to the treatment principles of MDT using the Centralization phenomenon as a guide. MDT credits the patient’s ability to learn the principles and be in control of their own symptom management, reducing their dependency on medical intervention and gaining life-long pain management and preventative skills. While every patient can benefit from the McKenzie Method of mechanical assessment, not all patients will be suitable for mechanical therapy-and this is determined quickly so that alternative treatments can begin as soon as possible.