What Is the McKenzie Method, and Is It Right for You?
The McKenzie Method: A New Zealand Framework for Accurate Diagnosis and Treatment
The McKenzie Method was developed by Robin McKenzie, a New Zealand physiotherapist, in the 1950s. What began as a clinical observation in a Wellington physiotherapy clinic has become one of the most recognised assessment and treatment frameworks used by physiotherapists and spinal surgeons worldwide.
Its formal name is Mechanical Diagnosis and Therapy, or MDT.
Although many people associate McKenzie treatment with repeated movements or back extensions, that is only a small part of the picture. MDT is best understood as a diagnostic framework. Its purpose is to help the clinician work out what is driving the pain, how the problem is likely to behave, and what treatment is most likely to help. It helps make treatment specific to the person, their pain, and their needs, rather than giving everyone the same generic back pain programme.
Lady does prone lying extension in the park.
More Than a Movement Screen
MDT is not simply a set of exercises or a quick movement test. It is a structured clinical reasoning process.
During an MDT assessment, the physiotherapist asks specific questions and looks at how symptoms respond to carefully selected movements, positions, loading strategies, and changes in posture. This helps identify the mechanical pattern behind the problem and guides the choice of treatment.
That matters because back pain and neck pain are not all the same. Two people may both have “low back pain”, but need completely different treatment. MDT helps avoid the common problem of applying general back pain protocols to everyone.
Instead, the aim is to make the diagnosis more specific, choose the most effective treatment, and give the patient a clearer understanding of what to expect.
Where Centralisation Fits In
One of the early findings that made McKenzie’s work unique was the phenomenon of centralisation.
Centralisation occurs when pain that has spread away from the spine, such as into the buttock, leg, or foot, progressively moves back towards the centre of the spine during assessment or treatment. This is often a very useful clinical sign and is generally associated with a good prognosis (outcome and timeframe).
However, centralisation is only one part of MDT. It is an important finding when present, but MDT is much more comprehensive than this alone. The full framework helps the clinician classify the problem, understand the likely recovery pathway, identify when conservative treatment is appropriate, and recognise when further investigation or referral may be needed.
Choosing the Right Treatment
Once the diagnosis is clearer, treatment can be matched to the individual.
For some people, that may involve a specific repeated movement or position. For others, it may involve hands-on treatment, strengthening, education, activity modification, or a staged return to sport, work, or daily life.
At Limber Physio, Bart de Vries combines MDT assessment with a broad range of physiotherapy skills. When useful, treatment may include joint mobilisation, manipulation, dry needling, massage, soft tissue techniques, exercise rehabilitation, and practical advice to help people keep moving.
The key point is that these treatments are not used randomly. They are selected based on the assessment and only used when there is evidence they are likely to add value.
Better Expectations and a Clearer Plan
One of the most useful parts of MDT is that it helps create clearer expectations.
A good assessment should help answer questions such as:
What is likely causing the pain?
Is this problem suitable for physiotherapy?
How quickly should it improve?
What can I do myself to help it recover?
Do I need imaging, medical review, or specialist input?
What should I avoid, and what can I safely keep doing?
For many patients, this clarity is just as important as the treatment itself. It gives people confidence, reduces fear, and helps them understand the pathway ahead.
Who Can Benefit From MDT?
MDT is most commonly used for back pain and neck pain, including disc-related pain and sciatica. It can be especially useful for people who have had recurring episodes, symptoms that have not improved with previous treatment, or pain that changes with movement, posture, sitting, bending, lifting, or activity.
It is also useful because it helps identify when the problem does not fit a mechanical pattern. In those cases, the assessment may point towards a different approach, further investigation, or referral to another health professional.
The spine loves to bend and it is important to get back to being comfortable with bending as part of your treatment.
Finding a Certified MDT Physiotherapist
Not all physiotherapists who describe themselves as “McKenzie trained” hold formal MDT certification. The McKenzie Institute International has a structured training and credentialing pathway that includes formal examination.
Bart de Vries holds a Certificate in MDT, representing formal assessment through the McKenzie Institute. On the Kāpiti Coast, this level of certification is uncommon.
Book an MDT Assessment
If you have back pain, neck pain, sciatica, or recurring pain that has not responded to previous treatment, an MDT assessment can help clarify what is going on and what the best next step should be.
Book an MDT assessment at Limber Physio with Bart de Vries, one of the few certified MDT physiotherapists on the Kāpiti Coast.
Written by Bart de Vries
Bart de Vries is a New Zealand physiotherapist and certified McKenzie/MDT clinician based at Limber Physio, Paraparaumu Beach Golf Club. He has a special interest in low back pain, sciatica, neck pain, and helping people understand the most effective pathway for recovery. Lean more about Bart.