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Pre-Operative Planning in Complex Deformities and Use of Patient-Specific UNiD™ Instrumentation.

David Ou-Yang1, Evalina L Burger1, Christopher J Kleck1

  • 1Department of Orthopedics, 12225University of Colorado, Anschutz Medical Campus, Aurora, CO, USA.

Global Spine Journal
|April 8, 2022
PubMed
Summary
This summary is machine-generated.

Patient-specific UNiD rods combined with pre-operative planning improve spinopelvic alignment in complex spine surgery. This technology aids surgeons in achieving goals like sagittal vertical axis and pelvic incidence-lumbar lordosis correction.

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Area of Science:

  • Spine Surgery
  • Orthopedics
  • Biomechanical Engineering

Background:

  • Pre-operative planning is crucial for complex spine surgery.
  • Computer-assisted planning allows evaluation of multiple surgical strategies.
  • Intraoperative assessment of surgical correction remains a challenge.

Purpose of the Study:

  • To review the literature on patient-specific UNiD rods in complex thoracolumbar spine surgery.
  • To describe the authors' initial experience with this technology.
  • To evaluate the effectiveness of UNiD rods in achieving pre-operative surgical plans.

Main Methods:

  • Literature review of studies using UNiD patient-specific rods for thoracolumbar spine surgery.
  • Selection and review of articles focusing on initial experiences and outcomes.
  • Description of the authors' own clinical experience at The University of Colorado.

Main Results:

  • UNiD patient-specific rods, with pre-operative planning, increase the rate of achieving ideal spinopelvic alignment parameters.
  • Improvements observed in sagittal vertical axis (SVA) < 50 mm and pelvic incidence-lumbar lordosis (PI-LL) = ± 10°.
  • While pelvic tilt shows improvement, achieving all correction goals intraoperatively still presents difficulties.

Conclusions:

  • Pre-operative planning software and UNiD patient-specific rods enhance the achievement of key spinopelvic alignment parameters (SVA, PI-LL).
  • This technology offers potential additional benefits in complex spine procedures.
  • Further investigation is required to ascertain the long-term value and impact of UNiD rods.