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- Joyce Antony, Dianne Hong Ngoc Le, and Liqun Yang.
- Department of Neurosurgery, Gold Coast University Hospital, Southport, Queensland, Australia; School of Medicine, The University of Queensland, St Lucia, Queensland, Australia. Electronic address: joyce.antony@uqconnect.edu.au.
- World Neurosurg. 2022 Sep 1; 165: e563e570e563-e570.
BackgroundWe present the largest series of tubular assisted minimally invasive extraforaminal L5/S1 microdiskectomy and describe the operative nuances. An extraforaminal L5/S1 disk herniation poses a surgical challenge as a result of limited access from a high iliac crest, the sacral ala, and the large transverse process of L5 necessitating oblique working angles.MethodsThis is a case series of 28 consecutive patients who underwent tubular retractor-assisted minimally invasive extraforaminal L5/S1 microdiskectomy between 2017 and 2020 for L5 radiculopathy. Preoperative variables include demographics (age, gender); imaging characteristics (presence of spondylolisthesis, grade and presence of dynamic instability); and patient-reported measures of pain and function. Postoperatively, any complications, pain, and function were documented at 1-day, 3-month, and 12-months follow-up. Statistical analysis involved descriptive analysis of measured variables.ResultsPatients (13 females and 15 males) had a median age of 62 years (range: 32-92). One patient demonstrated grade I spondylolisthesis with no dynamic instability. Twenty-six patients (93%) achieved complete pain resolution during the follow-up period. Two patients had persistent or recurrent radicular pain, 1 of whom resolved completely with a redo tubular retractor-assisted minimally invasive microdiskectomy. No other complications were noted during the postoperative follow-up.ConclusionsTubular retractor-assisted minimally invasive extraforaminal L5/S1 microdiskectomy is an effective approach. Good surgical outcomes are achieved while avoiding the complications associated with more invasive options such as open surgery or fusion.Crown Copyright © 2022. Published by Elsevier Inc. All rights reserved.
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