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Basic demographic and radiographical data were reviewed, and the propensity to choose a surgical procedure was calculated. Preoperatively, there were no significant differences among the participants in terms of patient backgrounds, radiographical measurements (K-line or cervical alignment on X-ray, OPLL occupation ratio on computed tomography, increased signal intensity change on magnetic resonance imaging), or clinical status (JOA score and JOACMEQ) after adjustments. The overall risk of perioperative complications was found to be lower with LM (odds ratio [OR] 0.40, p\u2009=\u20090.006), and the rate of C5 palsy occurrence was significantly lower with LM (OR 0.11, p\u2009=\u20090.0002) than with PF. The range of motion (20.91\u00b0\u2009\u00b1\u20091.05\u00b0 and 9.38\u00b0\u2009\u00b1\u20091.24\u00b0, p\u2009&lt;\u20090.0001) in patients who had PF was significantly smaller than in those who had LM. However, multivariable logistic regression analysis showed no significant difference among the participants in JOA score, JOA recovery rate, or JOACMEQ improvement at two years. In contrast, OPLL progression was greater in the LM group than in the PF group (OR 2.73, p\u2009=\u20090.0002). Both LM and PF for cervical myelopathy due to OPLL had resulted in comparable postoperative outcomes at 2\u00a0years after surgery.<\/jats:p>","DOI":"10.1038\/s41598-021-04727-1","type":"journal-article","created":{"date-parts":[[2022,1,14]],"date-time":"2022-01-14T06:02:40Z","timestamp":1642140160000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":43,"title":["Comparison of laminoplasty and posterior fusion surgery for cervical ossification of posterior longitudinal 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