Lee BJ, et al. - Experts gauged the impact of the preoperative cross-sectional area (CSA) of the semispinalis cervicis on postoperative loss of cervical lordosis (LCL) following laminoplasty. A risk factor for LCL after laminoplasty was preoperative summation of the CSAs (SCSA) of the semispinalis cervicis. When planning laminoplasty for patients with CSM, semispinalis cervicis muscularity at the C6 level should be evaluated by the spine surgeons. Findings suggested the greatest association of the CSA of the semispinalis cervicis at the C6 level with LCL, which suddenly decreased with an LCL of 10°