Spinal Fusion Is Associated With Changes in Acetabular Orientation and Reductions in Pelvic Mobility

Clinical Orthopaedics and Related Research
Jenna BernsteinGwo-Chin Lee

Abstract

The importance of spinopelvic motion and its influence on THA stability are well recognized but poorly defined. With dynamic motion, compensatory changes in spine and pelvic positions are required to keep the necessary balance between the axial skeleton and lower extremity to maintain an erect posture. Although prior studies have shown spinal fusions to be an independent risk factor for hip dislocations after primary THA, the direct impact of fusion levels on spinopelvic motion remains unknown. The purposes of this study were (1) to determine if acetabular orientation changes with flexion and extension of the lumbar spine; (2) to determine if the amount of change is different in patients who have undergone spinal fusion at the L5-S1 level; and (3) to identify if the amount of change in acetabular motion is increased in patients who have undergone fusion at additional or other spinal levels. We reviewed 100 flexion-extension spine films of patients older than 18 years of age with a history of back pain who had not undergone spinal or hip surgery and compared them with 50 flexion-extension spine films of patients who had undergone lumbar fusion at various levels. These radiographs were acquired between 2012 and 2017 and stored in...Continue Reading

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Citations

Feb 14, 2021·Arthroscopy : the Journal of Arthroscopic & Related Surgery : Official Publication of the Arthroscopy Association of North America and the International Arthroscopy Association·Berkcan AkpinarThomas Youm
Mar 27, 2021·The Journal of Bone and Joint Surgery. American Volume·Toshiyuki KawaiShuichi Matsuda
Jun 3, 2021·The Journal of the American Academy of Orthopaedic Surgeons·Nathanael D Heckmann, Jay R Lieberman
Oct 7, 2021·The Journal of Bone and Joint Surgery. American Volume·Joseph C ChavarriaPhilip J York
Nov 27, 2021·European Journal of Orthopaedic Surgery & Traumatology : Orthopédie Traumatologie·Hiroki FuruhashiYukihiro Matsuyama

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