Functional and Quality of Life Outcomes of Surgery for Degenerative Cervical Myelopathy: a Quality Improvement Study

Background: This study aimed to determine the outcome of surgical treatments in patients with degenerative cervical myelopathy (DCM). During one-year follow-up period, we evaluated patient-reported functional and quality of life (QOL) measures. Methods: In a retrospective single-center study, we collected data of patients with DCM who underwent cervical fusion surgeries in Imam Khomeini Hospital, Tehran, Iran, from 2011 to 2015. Patients underwent single or multi-level anterior cervical discectomy and fusion (ACDF), anterior cervical corpectomy and fusion (ACCF), or posterior laminectomy and fusion. We utilized patient-reported assessments including Short Form 36 (SF-36), Visual Analogue Scale (VAS), Neck Disability Index (NDI), and Nurick grade. Follow-up was performed at 6 weeks, 3 months, 6 months, and 12 months post-operatively to assess the outcome of surgery. Results: Ninety patients (56 men, 34 women) with a mean age of 54.1 (27-87) years were included. Comparison of pre- and post-operative scores showed significant improvement in SF-36 parameters, VAS, NDI, and Nurick grade (P < 0.001). Also, women’s VAS scores improved more than men's VAS scores during the follow-up period (P < 0.050). Age and type of surgery did not significantly affect the SF-36 parameters, VAS, NDI, and Nurick grade (P > 0.05). Conclusions: Cervical surgeries in patients with different severity of DCM can improve different aspects of QOL during one-year after surgery