Machino M, Ando K, Kobayashi K, et al. - A prospective study. Was conducted to define the risk factors for poor outcomes following cervical laminoplasty in patients with cervical spondylotic myelopathy (CSM). Researchers prospectively enrolled a total of 505 consecutive patients with CSM (311 males; 194 females; mean age, 66.6 years; age range, 41–91 years) who had undergone double-door laminoplasty. The recovery rate (RR) on the basis of the Japanese Orthopaedic Association score was assessed. They conducted a logistic regression analysis to distinguish the risk factors for poor outcome, which was characterized as a postoperative RR of < 50%. They analyzed the association between the outcome and various clinical and imaging predictors. The findings demonstrated that 295 individuals had good outcomes with RR > 50%, whereas 210 patients had poor outcomes with RR < 50%. This study’s findings demonstrate that advanced age, long-term CSM symptoms, and the lower score of preoperative 10-second step test are risk factors for poor outcome in patients with CSM.