Conjoint Nerve Root an Intraoperative Challenge in Minimally Invasive Tubular Discectomy

Conjoint nerve root (CNR) is an embryological nerve root anomaly that mainly involves the lumbosacral region. The presence of CNR during tubular discectomy raises the chances of failure in spinal surgery and the risk of neural injuries. Tubular discectomy can be challenging in the presence of CNR ow...

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Main Authors: Ayush Sharma, Vijay Singh, Romit Agrawal, Nilesh Mangale, Priyank Deepak, Jeet Savla, Ajay Jaiswal
Format: Article
Language:English
Published: Korean Spine Society 2021-08-01
Series:Asian Spine Journal
Subjects:
Online Access:http://www.asianspinejournal.org/upload/pdf/asj-2020-0250.pdf
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author Ayush Sharma
Vijay Singh
Romit Agrawal
Nilesh Mangale
Priyank Deepak
Jeet Savla
Ajay Jaiswal
author_facet Ayush Sharma
Vijay Singh
Romit Agrawal
Nilesh Mangale
Priyank Deepak
Jeet Savla
Ajay Jaiswal
author_sort Ayush Sharma
collection DOAJ
description Conjoint nerve root (CNR) is an embryological nerve root anomaly that mainly involves the lumbosacral region. The presence of CNR during tubular discectomy raises the chances of failure in spinal surgery and the risk of neural injuries. Tubular discectomy can be challenging in the presence of CNR owing to limited visualization. Here, we present a technical note on two cases of L5–S1 disc prolapse in the presence of conjoint S1 nerve root that was operated via a minimally invasive tubular approach. Any intraoperative suspicion of CNR while using the tubular approach should prompt the surgeon to perform a thorough tubular decompression prior to nerve root retraction. In patients with a large disc, disc should be approached via the axilla because the axillary area between the dura and the medial boarder of the root is very easy to approach in the presence of CNR. Safe performance of tubular discectomy is possible even in the presence of CNR in the lumbar spine.
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spelling doaj.art-acb0be08276d4d14a3af3d0d2f415a3e2022-12-21T21:34:54ZengKorean Spine SocietyAsian Spine Journal1976-19021976-78462021-08-0115454554910.31616/asj.2020.02501300Conjoint Nerve Root an Intraoperative Challenge in Minimally Invasive Tubular DiscectomyAyush Sharma0Vijay Singh1Romit Agrawal2Nilesh Mangale3Priyank Deepak4Jeet Savla5Ajay Jaiswal6Department of Orthopedic and Spine Surgery, Dr. Babasaheb Ambedkar Central Railway Hospital, Mumbai, IndiaDepartment of Orthopedic and Spine Surgery, Dr. Babasaheb Ambedkar Central Railway Hospital, Mumbai, IndiaDepartment of Orthopedic and Spine Surgery, Dr. Babasaheb Ambedkar Central Railway Hospital, Mumbai, IndiaDepartment of Orthopedic and Spine Surgery, Dr. Babasaheb Ambedkar Central Railway Hospital, Mumbai, IndiaDepartment of Orthopedic and Spine Surgery, Dr. Babasaheb Ambedkar Central Railway Hospital, Mumbai, IndiaDepartment of Orthopedic and Spine Surgery, Dr. Babasaheb Ambedkar Central Railway Hospital, Mumbai, IndiaDepartment of Orthopedic and Spine Surgery, Dr. Babasaheb Ambedkar Central Railway Hospital, Mumbai, IndiaConjoint nerve root (CNR) is an embryological nerve root anomaly that mainly involves the lumbosacral region. The presence of CNR during tubular discectomy raises the chances of failure in spinal surgery and the risk of neural injuries. Tubular discectomy can be challenging in the presence of CNR owing to limited visualization. Here, we present a technical note on two cases of L5–S1 disc prolapse in the presence of conjoint S1 nerve root that was operated via a minimally invasive tubular approach. Any intraoperative suspicion of CNR while using the tubular approach should prompt the surgeon to perform a thorough tubular decompression prior to nerve root retraction. In patients with a large disc, disc should be approached via the axilla because the axillary area between the dura and the medial boarder of the root is very easy to approach in the presence of CNR. Safe performance of tubular discectomy is possible even in the presence of CNR in the lumbar spine.http://www.asianspinejournal.org/upload/pdf/asj-2020-0250.pdfconjoined lumbosacral nerve rootslumbar disc herniationnerve root anomaliestubular discectomy
spellingShingle Ayush Sharma
Vijay Singh
Romit Agrawal
Nilesh Mangale
Priyank Deepak
Jeet Savla
Ajay Jaiswal
Conjoint Nerve Root an Intraoperative Challenge in Minimally Invasive Tubular Discectomy
Asian Spine Journal
conjoined lumbosacral nerve roots
lumbar disc herniation
nerve root anomalies
tubular discectomy
title Conjoint Nerve Root an Intraoperative Challenge in Minimally Invasive Tubular Discectomy
title_full Conjoint Nerve Root an Intraoperative Challenge in Minimally Invasive Tubular Discectomy
title_fullStr Conjoint Nerve Root an Intraoperative Challenge in Minimally Invasive Tubular Discectomy
title_full_unstemmed Conjoint Nerve Root an Intraoperative Challenge in Minimally Invasive Tubular Discectomy
title_short Conjoint Nerve Root an Intraoperative Challenge in Minimally Invasive Tubular Discectomy
title_sort conjoint nerve root an intraoperative challenge in minimally invasive tubular discectomy
topic conjoined lumbosacral nerve roots
lumbar disc herniation
nerve root anomalies
tubular discectomy
url http://www.asianspinejournal.org/upload/pdf/asj-2020-0250.pdf
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