Clinical evaluation of S1 alar screws application in short-segment lumbosacral fixation and fusion for spine infection with severe S1 vertebral body loss

Abstract Background The one-stage posterior approach for treating spinal infection has recently been generally accepted. However, severe vertebral body loss caused by infection remains a major challenge in posterior surgery. This study was conducted to evaluate the clinical application and outcomes...

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Main Authors: Weizhi Fang, Weijun Liu, Qingbo Li, Lei Cai, Wei Wang, Xincheng Yi, Hongbo Jiao, Zhi Yao
Format: Article
Language:English
Published: BMC 2022-09-01
Series:BMC Musculoskeletal Disorders
Subjects:
Online Access:https://doi.org/10.1186/s12891-022-05824-6
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author Weizhi Fang
Weijun Liu
Qingbo Li
Lei Cai
Wei Wang
Xincheng Yi
Hongbo Jiao
Zhi Yao
author_facet Weizhi Fang
Weijun Liu
Qingbo Li
Lei Cai
Wei Wang
Xincheng Yi
Hongbo Jiao
Zhi Yao
author_sort Weizhi Fang
collection DOAJ
description Abstract Background The one-stage posterior approach for treating spinal infection has recently been generally accepted. However, severe vertebral body loss caused by infection remains a major challenge in posterior surgery. This study was conducted to evaluate the clinical application and outcomes of S1 alar screws used in the one-stage posterior surgery of short-segment lumbosacral fixation and fusion after debridement for infection with severe S1 vertebral body loss. Methods The clinical features and treatment outcomes of 7 patients with spinal infections from August 2016 to August 2021 who were treated with one-stage posterior surgery using S1 alar screws were retrospectively analyzed. The clinical data, including patient data, visual analogue scale (VAS), Oswestry Disability Index (ODI), fusion time and complications of the patients, were recorded. Results All 7 patients were followed up for an average duration of 14.57 months (range, 12—18 months). The VAS score decreased significantly from 7.3 preoperatively (range, 6—8) to 2.6 postoperatively (range, 2—3). The ODI score demonstrated a steady and gradual increase from 73.8 preoperatively (range, 68—75) to 33.6 postoperatively (range, 30—37). Bony fusion time was observed approximately 6.8 months after surgery. Two patients in our study experienced the postoperative local pain, which could be relieved by analgesics and disappeared 3 months after the operation. There were no complications of intraoperative fracture, posterior wound infection or neurovascular injury. Conclusions S1 alar screws are suitable for use in the operation and could be an alternative option to S1 pedicle screws for short-segment lumbosacral fixation and fusion with severe S1 vertebral body loss caused by spinal infection, which could provide satisfactory clinical outcomes.
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spelling doaj.art-9c02d4677c614c9abdb060ce2e4cf7b32022-12-22T04:03:03ZengBMCBMC Musculoskeletal Disorders1471-24742022-09-012311910.1186/s12891-022-05824-6Clinical evaluation of S1 alar screws application in short-segment lumbosacral fixation and fusion for spine infection with severe S1 vertebral body lossWeizhi Fang0Weijun Liu1Qingbo Li2Lei Cai3Wei Wang4Xincheng Yi5Hongbo Jiao6Zhi Yao7Department of Orthopaedics, Wuhan Fourth HospitalDepartment of Orthopaedics, Wuhan Fourth HospitalDepartment of Orthopaedics, Wuhan Fourth HospitalDepartment of Orthopaedics, Wuhan Fourth HospitalDepartment of Orthopaedics, Wuhan Fourth HospitalDepartment of Orthopaedics, Wuhan Fourth HospitalWuhan Fourth Hospital; Puai Hospital, Tongji Medical College, Huazhong University of Science and TechnologyWuhan Fourth Hospital; Puai Hospital, Tongji Medical College, Huazhong University of Science and TechnologyAbstract Background The one-stage posterior approach for treating spinal infection has recently been generally accepted. However, severe vertebral body loss caused by infection remains a major challenge in posterior surgery. This study was conducted to evaluate the clinical application and outcomes of S1 alar screws used in the one-stage posterior surgery of short-segment lumbosacral fixation and fusion after debridement for infection with severe S1 vertebral body loss. Methods The clinical features and treatment outcomes of 7 patients with spinal infections from August 2016 to August 2021 who were treated with one-stage posterior surgery using S1 alar screws were retrospectively analyzed. The clinical data, including patient data, visual analogue scale (VAS), Oswestry Disability Index (ODI), fusion time and complications of the patients, were recorded. Results All 7 patients were followed up for an average duration of 14.57 months (range, 12—18 months). The VAS score decreased significantly from 7.3 preoperatively (range, 6—8) to 2.6 postoperatively (range, 2—3). The ODI score demonstrated a steady and gradual increase from 73.8 preoperatively (range, 68—75) to 33.6 postoperatively (range, 30—37). Bony fusion time was observed approximately 6.8 months after surgery. Two patients in our study experienced the postoperative local pain, which could be relieved by analgesics and disappeared 3 months after the operation. There were no complications of intraoperative fracture, posterior wound infection or neurovascular injury. Conclusions S1 alar screws are suitable for use in the operation and could be an alternative option to S1 pedicle screws for short-segment lumbosacral fixation and fusion with severe S1 vertebral body loss caused by spinal infection, which could provide satisfactory clinical outcomes.https://doi.org/10.1186/s12891-022-05824-6S1 alar screwSpinal infectionLumbosacral fixationShort-segment
spellingShingle Weizhi Fang
Weijun Liu
Qingbo Li
Lei Cai
Wei Wang
Xincheng Yi
Hongbo Jiao
Zhi Yao
Clinical evaluation of S1 alar screws application in short-segment lumbosacral fixation and fusion for spine infection with severe S1 vertebral body loss
BMC Musculoskeletal Disorders
S1 alar screw
Spinal infection
Lumbosacral fixation
Short-segment
title Clinical evaluation of S1 alar screws application in short-segment lumbosacral fixation and fusion for spine infection with severe S1 vertebral body loss
title_full Clinical evaluation of S1 alar screws application in short-segment lumbosacral fixation and fusion for spine infection with severe S1 vertebral body loss
title_fullStr Clinical evaluation of S1 alar screws application in short-segment lumbosacral fixation and fusion for spine infection with severe S1 vertebral body loss
title_full_unstemmed Clinical evaluation of S1 alar screws application in short-segment lumbosacral fixation and fusion for spine infection with severe S1 vertebral body loss
title_short Clinical evaluation of S1 alar screws application in short-segment lumbosacral fixation and fusion for spine infection with severe S1 vertebral body loss
title_sort clinical evaluation of s1 alar screws application in short segment lumbosacral fixation and fusion for spine infection with severe s1 vertebral body loss
topic S1 alar screw
Spinal infection
Lumbosacral fixation
Short-segment
url https://doi.org/10.1186/s12891-022-05824-6
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