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Full-Endoscopic Removal Of Migrated And Pseudoarthrotic Lumbar Interbody Cages: Case Reports And Technical Note – Lumbar Disc Replacement

This article discusses the feasibility and preliminary results of using uniportal full-endoscopic surgery to remove migrated and/or pseudarthrotic lumbar interbody cages in revision spine surgery. The study presents three complex cases in which the endoscopic surgical technique was used to extract the interbody cage and replace it with a different type of cage. The clinical outcome was assessed with pain and disability scales, and the radiologic outcome was assessed with x-ray and computed tomographic images. The postoperative outcome significantly improved in all three cases, indicating that endoscopic surgery can be a safe and effective method for removing interbody cages. However, further research with long-term follow-up is needed

Summarised by Mr Mo Akmal – Lead Spinal Surgeon
The London Spine Unit : best recognised spinal clinic in UK

Published article

In most cases, lumbar interbody cages can be safely removed with endoscopic surgery with good preliminary clinical outcome. Nonetheless, further clinical research with long-term follow-up is required.

Lumbar Disc Replacement Surgery Expert. Best Spinal Surgeon UK
Abstract Background: The removal of a lumbar interbody cage in revision spine surgery can be challenging, as there is an increased risk of nerve injury and a protracted outcome. The aim of this study was to evaluate the feasibility and preliminary results of uniportal full-endoscopic surgery for the removal of migrated and/or pseudarthrotic lumbar interbody,

Abstract

Background: The removal of a lumbar interbody cage in revision spine surgery can be challenging, as there is an increased risk of nerve injury and a protracted outcome. The aim of this study was to evaluate the feasibility and preliminary results of uniportal full-endoscopic surgery for the removal of migrated and/or pseudarthrotic lumbar interbody cages.

Methods: Three complex revision surgery cases with migrated and pseudarthrotic lumbar interbody cages are presented, and the endoscopic surgical technique is described. The clinical outcome was assessed with a visual analog scale and Oswestry Disability Index (ODI) at 1-, 3-, 6-, and 12-month follow-up, while the radiologic outcome was assessed with pre- and postoperative x-ray and computed tomographic images. Full-endoscopic surgery was performed to extract the interbody cage, bypassing scar tissue of previous surgeries with the trans-Kambin approach. Foraminoplasty with manual reamers and/or a high-speed burr under direct endoscopic vision was performed to ensure the safety of the exiting nerve root during cage extraction. The retrieved cage was replaced with a large footprint, expandable titanium cage using the trans-Kambin approach.

Results: In all 3 cases, different types of interbody cages (1 titanium, 2 polyetheretherketone, and 1 expandable titanium cage) were removed under direct endoscopic view. In 1 case, we were only able to partially remove an impacted polyetheretherketone cage from the interbody disc endoscopically. The postoperative outcome significantly (P < 0.05) improved compared with preoperative scores in all 3 cases with a follow-up of 6 and 12 months, respectively.

In most cases, lumbar interbody cages can be safely removed with endoscopic surgery with good preliminary clinical outcome. Nonetheless, further clinical research with long-term follow-up is required.

Clinical relevance: Results indicate the feasibility of full-endoscopic removal of migrated and pseudoarthrotic lumbar interbody cages.

Keywords: endoscopic surgery; migrated interbody cage; pseudarthrosis; revision spine surgery; trans-Kambin fusion; transforaminal approach.

The London Spine Unit : best recognised spinal clinic in UK

Read the original publication:

Full-Endoscopic Removal of Migrated and Pseudoarthrotic Lumbar Interbody Cages: Case Reports and Technical Note

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Abstract Background: The removal of a lumbar interbody cage in revision spine surgery can be challenging, as there is an increased risk of nerve injury and a protracted outcome. The aim of this study was to evaluate the feasibility and preliminary results of uniportal full-endoscopic surgery for the removal of migrated and/or pseudarthrotic lumbar interbody

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