Non-physiologic loading of the facet joint is a potential cause of facet joint pain in the cervical spine [1]. When the local biomechanical environment of the facet joint is altered, like with trauma or after surgery [2], the cartilaginous articular surfaces of the facets can also be damaged. Defining articular contact pressure can provide a metric of altered joint mechanics and the local mechanical environment of the cartilage in the facet joint. However, accessing the articular surface to make such measurements without altering the overall mechanics of the joint remains a substantial challenge.

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