The next AAHKS webinar, “Functional Cup Position to Avoid Instability in Total Hip Arthroplasty and the Hip/Spine Relationship,” moderated by Douglas E. Padgett, MD, takes place on Wednesday, September 28, 2016 at 8:00 p.m. (Eastern). Register now.

The mobility of the spine is intimately associated with alignment, motion, and complications after total hip arthroplasty (THA). Patients with degenerative arthritis in the hip and spine can have significantly altered body kinematics and varying lumbar-pelvic-femoral alignment. Hip surgeons must therefore understand and incorporate spinal pathology into the surgical plan. Acetabular anteversion and inclination change during human motion as the pelvis flexes and extends when transitioning from supine to standing, and from standing to sitting positions. Understanding this hip-spine relationship will help surgeons identify patients who are at an increased risk for dislocation or impingement in an effort to decrease post-operative instability and thus create patient specific surgical plans to improve clinical outcomes.


  • Review the correlation between pelvic tilt, safe zones, and acetabular inclination/anteversion in total hip arthroplasty
  • Recognize, assess, and incorporate spinal pathology into the surgical plan
  • Recognize the role of registries to improving surgical practice and patient outcomes

CME Credit:
The American Association of Hip and Knee Surgeons (AAHKS) is accredited by the Accreditation Council for Continuing Medical Education (ACCME) to provide continuing medical education for physicians.

The American Association of Hip and Knee Surgeons (AAHKS) designates this live activity for a maximum of 1 AMA PRA Category 1 Credits™. Physicians should claim only the credit commensurate with the extent of their participation in the activity.