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Articles linked to this work by shared authors, journal, and citation graph.

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Changes in Alignment at Untreated Vertebral Levels Following Short-Segment Fusion Using Personalized Interbody Cages: Leveraging Personalized Medicine to Reduce the Risk of Reoperation.

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Mismatch Between Pelvic Incidence and Lumbar Lordosis After Personalized Interbody Fusion: The Importance of Preoperative Planning and Alignment in Degenerative Spine Diseases.

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Three-dimensional Navigation-guided, Prone, Single-position, Lateral Lumbar Interbody Fusion Technique
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Predictability in Achieving Target Intervertebral Lordosis Using Personalized Interbody Implants.

Saeed S Sadrameli1, Donald J Blaskiewicz2, Jahangir Asghar3

  • 1AdventHealth Celebration, Celebration, FL, USA Dr.Sadrameli@orlandoneurosurgery.com.

International Journal of Spine Surgery
|August 24, 2024
PubMed
Summary
This summary is machine-generated.

3D-printed personalized interbody implants reliably achieve planned intervertebral alignment goals, supporting their use in lumbar spine surgery for improved sagittal alignment. This technology enhances patient outcomes by customizing implants to individual needs.

Keywords:
cagedeviceinterbodyintervertebrallordosislumbar fusionpersonalizedpre-operative planning

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Area of Science:

  • Spine surgery
  • Orthopedic implants
  • Biomedical engineering

Background:

  • Lumbar lordosis is crucial for spinal alignment and patient outcomes.
  • Standard hyperlordotic cages lack correlation between cage shape and intervertebral alignment.
  • 3D-printed personalized implants offer customized solutions for spinal alignment goals.

Purpose of the Study:

  • To evaluate the reliability of 3D-printed patient-specific interbody implants in achieving planned postoperative intervertebral alignment.
  • To assess the accuracy of intervertebral lordosis (IVL) achieved with personalized implants.

Main Methods:

  • Retrospective study of 217 patients undergoing spinal deformity or degenerative condition surgery.
  • Inclusion criteria: implantation of 3D-printed personalized interbody implants.
  • Measurement of standing postoperative radiographs to calculate IVL offset (achieved minus planned IVL).

Main Results:

  • 365 personalized interbodies were implanted across ALIF, LLIF, and TLIF approaches.
  • Overall IVL offset was 1.1° ± 4.4°, with 81.9% of levels achieved within 5° of the plan.
  • Accuracy varied by approach: LLIF (85.9%), TLIF (82.6%), ALIF (78.6%) within 5° of plan. 2.7% missed planned IVL by >10°.

Conclusions:

  • 3D-printed personalized interbody implants are reliable for achieving planned sagittal intervertebral alignment.
  • These implants can consistently meet intervertebral lordosis goals, positively impacting foundational lumbar alignment.