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Measuring Surgical Outcomes in Cervical Spondylotic Myelopathy Patients Undergoing Anterior Cervical Discectomy and Fusion: Assessment of Minimum Clinically Important Difference

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  • Brenda M Auffinger
  • Rishi R Lall
  • Nader S Dahdaleh
  • Albert P Wong
  • Sandi K Lam
  • Tyler Koski
  • Richard G Fessler
  • Zachary A Smith

Abstract

Object: The concept of minimum clinically important difference (MCID) has been used to measure the threshold by which the effect of a specific treatment can be considered clinically meaningful. MCID has previously been studied in surgical patients, however few studies have assessed its role in spinal surgery. The goal of this study was to assess the role of MCID in patients undergoing anterior cervical discectomy and fusion (ACDF) for cervical spondylotic myelopathy (CSM). Methods: Data was collected on 30 patients who underwent ACDF for CSM between 2007 and 2012. Preoperative and 1-year postoperative Neck Disability Index (NDI), Visual-Analog Scale (VAS), and Short Form-36 (SF-36) Physical (PCS) and Mental (MCS) Component Summary PRO scores were collected. Five distribution- and anchor-based approaches were used to calculate MCID threshold values average change, change difference, receiver operating characteristic curve (ROC), minimum detectable change (MDC) and standard error of measurement (SEM). The Health Transition Item of the SF-36 (HTI) was used as an external anchor. Results: Patients had a significant improvement in all mean physical PRO scores postoperatively (p

Suggested Citation

  • Brenda M Auffinger & Rishi R Lall & Nader S Dahdaleh & Albert P Wong & Sandi K Lam & Tyler Koski & Richard G Fessler & Zachary A Smith, 2013. "Measuring Surgical Outcomes in Cervical Spondylotic Myelopathy Patients Undergoing Anterior Cervical Discectomy and Fusion: Assessment of Minimum Clinically Important Difference," PLOS ONE, Public Library of Science, vol. 8(6), pages 1-6, June.
    • Handle: RePEc:plo:pone00:0067408
    DOI: 10.1371/journal.pone.0067408
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    Cited by:

    1. Dariusz Latka & Kajetan Latka & Grzegorz Miekisiak & Klaudia Kozlowska & Tomasz Olbrycht & Jacek Chowaniec, 2019. "Cervical Disc Arthroplasty -Efficacy and Indications. Single Center Long-Term Cohort Study Compared to Rcts’ Results," Open Access Journal of Neurology & Neurosurgery, Juniper Publishers Inc., vol. 11(2), pages 23-32, July.

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