An arthrokinematic motion - linear motion across a joint surface parallel to the plane of the adjacent joint surface, just as your posterior moves relative to a "slide" in a park. For example, the glide of facet joint in the spine during spinal flexion and extension, or the posterior glide of the humeral head that must accompany anterior roll to maintain congruence with glenoid fossa during shoulder horizontal adduction.

Related Terms

  • arthrokinematics
  • facet joints
  • humeral head
  • glenoid fossa


  • slide
  • glide
  • shear
  • shearing