Open-door laminoplasty significantly affected postoperative cervical sagittal balance, with the cervical vertebra appearing to tilt forward. As the severity of surgical invasion to the posterior muscular-ligament complex increased, the loss of cervical sagittal balance also increased.
The threshold value of the MCID was determined by the choice of the assessment approach. In addition, the recovery rate of the mJOA score appeared to be the most valid and responsive measure of effectiveness of surgery in CSM patients.
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