Revision surgery for cervical spondylotic myelopathy: surgical results and outcome

The role of additional or revision surgery in patients with cervical spondylotic myelopathy (CSM) is challenging. Postoperative pseudoarthrosis, instability, hardware failure, and recurrent cervical stenosis are conditions that require detailed clinical and radiographic assessment to define the path...

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Veröffentlicht in:Neurosurgery 2008-08, Vol.63 (2), p.292-298
Hauptverfasser: Gok, Beril, Sciubba, Daniel M, McLoughlin, Gregory S, McGirt, Matthew, Ayhan, Selim, Wolinsky, Jean-Paul, Bydon, Ali, Gokaslan, Ziya L, Witham, Timothy F
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container_end_page 298
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container_start_page 292
container_title Neurosurgery
container_volume 63
creator Gok, Beril
Sciubba, Daniel M
McLoughlin, Gregory S
McGirt, Matthew
Ayhan, Selim
Wolinsky, Jean-Paul
Bydon, Ali
Gokaslan, Ziya L
Witham, Timothy F
description The role of additional or revision surgery in patients with cervical spondylotic myelopathy (CSM) is challenging. Postoperative pseudoarthrosis, instability, hardware failure, and recurrent cervical stenosis are conditions that require detailed clinical and radiographic assessment to define the pathology and assess the need for surgical decompression and fusion. The purpose of this study is to assess the neurological outcome, radiological outcome, and complications of patients undergoing additional or revision surgery for CSM. Between 2002 and 2006, 30 patients with CSM and postoperative pseudoarthrosis, instability, hardware failure, or recurrent stenosis underwent surgical decompression and stabilization. The specific procedure was selected according to each patient's medical condition, cervical sagittal alignment, and extent of stenosis. All patients underwent an anterior, posterior, or combined anterior and posterior decompression and instrumented fusion. The charts of these patients were reviewed to assess neurological and radiographic outcomes. Twenty-five patients (83%) improved postoperatively as measured by the Nurick Myelopathy Scale over a mean follow-up period of 19 months (range, 2-64 mo). The overall complication rate was 27%, consisting of transient monoradiculopathy (7%), dysphagia (10%), and infection (7%). The incidence of nonunion during the follow-up period was 3%. Although patients with CSM and postoperative pseudoarthrosis, instability, hardware failure, or junctional stenosis who require revision surgery may risk a substantial likelihood of surgical complications (25% in this series), a significant proportion of patients may experience improved neurological outcomes. In our experience, the cervical sagittal alignment and the extent of stenosis are critical factors to consider when selecting the eventual procedure.
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Postoperative pseudoarthrosis, instability, hardware failure, and recurrent cervical stenosis are conditions that require detailed clinical and radiographic assessment to define the pathology and assess the need for surgical decompression and fusion. The purpose of this study is to assess the neurological outcome, radiological outcome, and complications of patients undergoing additional or revision surgery for CSM. Between 2002 and 2006, 30 patients with CSM and postoperative pseudoarthrosis, instability, hardware failure, or recurrent stenosis underwent surgical decompression and stabilization. The specific procedure was selected according to each patient's medical condition, cervical sagittal alignment, and extent of stenosis. All patients underwent an anterior, posterior, or combined anterior and posterior decompression and instrumented fusion. The charts of these patients were reviewed to assess neurological and radiographic outcomes. Twenty-five patients (83%) improved postoperatively as measured by the Nurick Myelopathy Scale over a mean follow-up period of 19 months (range, 2-64 mo). The overall complication rate was 27%, consisting of transient monoradiculopathy (7%), dysphagia (10%), and infection (7%). The incidence of nonunion during the follow-up period was 3%. Although patients with CSM and postoperative pseudoarthrosis, instability, hardware failure, or junctional stenosis who require revision surgery may risk a substantial likelihood of surgical complications (25% in this series), a significant proportion of patients may experience improved neurological outcomes. 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subjects Cervical Vertebrae - diagnostic imaging
Cervical Vertebrae - surgery
Female
Follow-Up Studies
Humans
Male
Middle Aged
Postoperative Complications - diagnostic imaging
Postoperative Complications - surgery
Pseudarthrosis - diagnostic imaging
Pseudarthrosis - etiology
Pseudarthrosis - surgery
Radiography
Reoperation
Retrospective Studies
Spinal Cord Diseases - diagnostic imaging
Spinal Cord Diseases - surgery
Spondylosis - diagnostic imaging
Spondylosis - surgery
Treatment Outcome
title Revision surgery for cervical spondylotic myelopathy: surgical results and outcome
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