12/10/2026
The crack doesn’t prove it worked.
That familiar pop during manipulation can feel satisfying. But it isn’t proof that something has been “put back into place” or that treatment has been successful.
A 2022 systematic review of five studies found no evidence that an audible pop is associated with better pain outcomes after spinal manipulation.
Studies report changes in pain sensitivity, sensory processing and motor excitability after manipulation. Whether these changes explain meaningful clinical improvement remains unclear.
The sound is not an outcome measure. What matters is how the patient responds.
When appropriate, manipulation can form part of care alongside exercise, education and clinical reasoning.
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