Paraspinal muscles and ligaments may play a role in determining the segmental angle as graft settling in patients with lordotic spines or segments is not linearly correlated with angular change.

• 椎旁肌和韧带在确定节段角度时可能起了一定的作用，因为前曲颈椎或节段患者植骨沉降与角度变化不呈线性相关。