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Related Experiment Video

Updated: Jun 1, 2025

Evaluation of Patients' Posture and Gait Profile After Lumbar Fusion Surgery by Video Rasterstereography and Treadmill Gait Analysis

Published on: March 23, 2019

Long-term Postural Stability Changes After Correction of Spinal Deformity: A Prospective, Controlled Pilot Study.

Ryan B Juncker¹, Joshua H Weinberg², James Xiao¹

¹College of Medicine, The Ohio State University, Columbus, OH.

|January 20, 2025

Summary

Postural stability improvements after adult spinal deformity (ASD) surgery are durable, leading to better clinical outcomes like reduced back pain. This highlights the importance of sagittal alignment in ASD patients.

Keywords:

adult spinal deformity balance center of gravity center of pressure cone of economy head sway patient-reported outcome measures postural stability sagittal alignment spine surgery outcomes

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Last Updated: Jun 1, 2025

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Area of Science:

Orthopedics
Neurosurgery
Biomedical Engineering

Background:

Symptomatic adult spinal deformity (ASD) often requires surgical correction to restore spinal balance.
While short-term benefits are known, the long-term durability of postural stability after ASD surgery is not well-established.
Understanding long-term outcomes is crucial for managing ASD patients.

Purpose of the Study:

To investigate the durability of postural stability following adult spinal deformity (ASD) correction surgery.
To assess the association between sustained postural stability and clinical outcomes in ASD patients.
To evaluate the long-term impact of surgical correction on spinal alignment and patient well-being.

Main Methods:

A single-center prospective cohort study involving adult patients undergoing long-segment fusion for ASD.
Preoperative and postoperative assessments included balance tests, radiographic analysis, and patient-reported outcome measures (PROMs).
Statistical analyses were performed to evaluate changes in postural stability and clinical outcomes over time.

Main Results:

Significant early postoperative improvements in center of pressure (COP) and center of gravity (COG) sway, and head sway were observed.
These postural stability improvements were largely maintained at the final follow-up, indicating durability.
Radiographic parameters (pelvic incidence-lumbar lordosis mismatch, sagittal vertical axis) and PROMs (pain, physical functioning) showed significant long-term improvements.

Conclusions:

Postural stability gains after ASD correction surgery are durable and linked to improved clinical outcomes.
Sustained sagittal alignment is clinically important for enhancing quality of life in ASD patients.
Further research with larger cohorts and longer follow-up is recommended to solidify these findings.