Surgeons Learning Curve of Transforaminal Endoscopic Discectomy for Sciatica

Objective Full-endoscopic spine surgery is gaining interest as a less-invasive alternative to treat sciatica caused by a lumbar disc herniation. Concerns, however, exist with the learning curve as percutaneous transforaminal endoscopic discectomy (PTED) appears to be more difficult to be performed c...

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Main Authors: Pravesh S. Gadjradj, Arnold Vreeling, Paul R. Depauw, Pieter J. Schutte, Biswadjiet S. Harhangi
Format: Article
Language:English
Published: Korean Spinal Neurosurgery Society 2022-09-01
Series:Neurospine
Subjects:
Online Access:http://e-neurospine.org/upload/pdf/ns-2244342-171.pdf
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author Pravesh S. Gadjradj
Arnold Vreeling
Paul R. Depauw
Pieter J. Schutte
Biswadjiet S. Harhangi
author_facet Pravesh S. Gadjradj
Arnold Vreeling
Paul R. Depauw
Pieter J. Schutte
Biswadjiet S. Harhangi
author_sort Pravesh S. Gadjradj
collection DOAJ
description Objective Full-endoscopic spine surgery is gaining interest as a less-invasive alternative to treat sciatica caused by a lumbar disc herniation. Concerns, however, exist with the learning curve as percutaneous transforaminal endoscopic discectomy (PTED) appears to be more difficult to be performed compared to other techniques. In this study, the clinical outcomes during and after the learning curve are presented of 3 surgeons naïve to PTED. Methods In the first phase of a randomized controlled, noninferiority trial comparing PTED with microdiscectomy, 3 surgeons were trained in the PTED-procedure by a senior surgeon. After performing up to 20 cases under supervision, they started performing PTED on their own. Results of the early cases were compared to the later cases (>20). Furthermore, complications and reoperations were compared. Finally, differences in clinical outcomes between surgeons were compared. Results At 12 months of follow-up, 87% of the patients had follow-up data available. In general, there were no significant differences in patient-reported outcomes between the early and later PTED cases. Furthermore, outcomes of the early PTED cases were comparable to the outcomes of microdiscectomy, while the later PTED cases had small, but more favorable outcomes compared to microdiscectomy. Two learning curve surgeons had substantially higher rates of reoperations within 1 year, compared to the senior surgeon or the microdiscectomy group. Duration of surgery was also longer for all learning curve surgeons. Finally, when comparing clinical outcomes of patients undergoing PTED versus microdiscectomy, there appears to be some statistically significant differences in outcomes compared between the senior and 3 learning curve surgeons. Conclusion PTED appears to be safe to be adopted by surgeons naïve to the procedure when they are initially supervised by an experienced senior surgeon. Duration of surgery and risk of repeated surgery are increased during the learning curve, but patient-reported outcomes of the early PTED cases are similar to the outcomes of later PTED cases, and similar to the outcomes of microdiscectomy cases. This study underlines the need for an experienced mentor for surgeons to safely adopt PTED.
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spelling doaj.art-fe571d7e5cb84f28b981bc00f59350b52024-02-02T04:45:26ZengKorean Spinal Neurosurgery SocietyNeurospine2586-65832586-65912022-09-0119359460210.14245/ns.2244342.1711296Surgeons Learning Curve of Transforaminal Endoscopic Discectomy for SciaticaPravesh S. Gadjradj0Arnold Vreeling1Paul R. Depauw2Pieter J. Schutte3Biswadjiet S. Harhangi4 Department of Neurological Surgery, Weill Cornell Brain and Spine Center, New York, NY, USA Department of Orthopedic Surgery, Rijnstate Ziekenhuis, Arnhem, The Netherlands Department of Neurosurgery, Elisabeth-TweeSteden Ziekenhuis, Tilburg, The Netherlands Department of Neurosurgery, Alrijne Ziekenhuis, Leiderdorp, The Netherlands Department of Neurosurgery, Park Medical Center, Rotterdam, The NetherlandsObjective Full-endoscopic spine surgery is gaining interest as a less-invasive alternative to treat sciatica caused by a lumbar disc herniation. Concerns, however, exist with the learning curve as percutaneous transforaminal endoscopic discectomy (PTED) appears to be more difficult to be performed compared to other techniques. In this study, the clinical outcomes during and after the learning curve are presented of 3 surgeons naïve to PTED. Methods In the first phase of a randomized controlled, noninferiority trial comparing PTED with microdiscectomy, 3 surgeons were trained in the PTED-procedure by a senior surgeon. After performing up to 20 cases under supervision, they started performing PTED on their own. Results of the early cases were compared to the later cases (>20). Furthermore, complications and reoperations were compared. Finally, differences in clinical outcomes between surgeons were compared. Results At 12 months of follow-up, 87% of the patients had follow-up data available. In general, there were no significant differences in patient-reported outcomes between the early and later PTED cases. Furthermore, outcomes of the early PTED cases were comparable to the outcomes of microdiscectomy, while the later PTED cases had small, but more favorable outcomes compared to microdiscectomy. Two learning curve surgeons had substantially higher rates of reoperations within 1 year, compared to the senior surgeon or the microdiscectomy group. Duration of surgery was also longer for all learning curve surgeons. Finally, when comparing clinical outcomes of patients undergoing PTED versus microdiscectomy, there appears to be some statistically significant differences in outcomes compared between the senior and 3 learning curve surgeons. Conclusion PTED appears to be safe to be adopted by surgeons naïve to the procedure when they are initially supervised by an experienced senior surgeon. Duration of surgery and risk of repeated surgery are increased during the learning curve, but patient-reported outcomes of the early PTED cases are similar to the outcomes of later PTED cases, and similar to the outcomes of microdiscectomy cases. This study underlines the need for an experienced mentor for surgeons to safely adopt PTED.http://e-neurospine.org/upload/pdf/ns-2244342-171.pdflumbar disc herniationendoscopic discectomysciaticarandomized controlled trial
spellingShingle Pravesh S. Gadjradj
Arnold Vreeling
Paul R. Depauw
Pieter J. Schutte
Biswadjiet S. Harhangi
Surgeons Learning Curve of Transforaminal Endoscopic Discectomy for Sciatica
Neurospine
lumbar disc herniation
endoscopic discectomy
sciatica
randomized controlled trial
title Surgeons Learning Curve of Transforaminal Endoscopic Discectomy for Sciatica
title_full Surgeons Learning Curve of Transforaminal Endoscopic Discectomy for Sciatica
title_fullStr Surgeons Learning Curve of Transforaminal Endoscopic Discectomy for Sciatica
title_full_unstemmed Surgeons Learning Curve of Transforaminal Endoscopic Discectomy for Sciatica
title_short Surgeons Learning Curve of Transforaminal Endoscopic Discectomy for Sciatica
title_sort surgeons learning curve of transforaminal endoscopic discectomy for sciatica
topic lumbar disc herniation
endoscopic discectomy
sciatica
randomized controlled trial
url http://e-neurospine.org/upload/pdf/ns-2244342-171.pdf
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