Objective To investigate the application effects of personalized cervical collar models generated by 3D printing based on spiral CT and digital cameras in the functional rehabilitation of cervical spondylosis.

Methods A total of 98 patients with cervical spondylosis were randomly divided into two groups, with 49 cases in each group. The control group received rehabilitation treatment with conventional cervical collars, while the observation group received rehabilitation therapy using 3D-printed personalized cervical collars based on spiral CT and digital cameras. The clinical efficacy, cervical joint mobility at different time points, disease severity Cervical Spondylosis Symptoms 20-Point Scale, Cervical Spondylosis Clinical Evaluation Scale (CASCS score) and Pain Rating Index (PRI score), cervical physiological curvature, cervical function Neck Disability Index (NDI) score, collar comfort and compliance iin two groups were observed.

Results The total effective rate in the observation group was 100.0%, while that in the control group was 93.9%. There was no statistical significance in the total effective rates between two groups (P ＞ 0.05). After 1 and 3 months of intervention, the cervical joint mobility in the flexion, extension, right lateral flexion, left lateral flexion, right rotation and left rotation, CASCS and 20-point scale scores in two groups were higher than those before intervention (P ＜ 0.05 ~ P ＜ 0.01), and which in the observation group was significantly higher than that in control group (P ＜ 0.01). After 1 and 3 months of intervention, the PRI and NDI scores in two groups were lower than those before intervention (P ＜ 0.01), and which in the observation group was lower higher than that in control group (P ＜ 0.01). After 1 and 3 months of intervention, the cervical physiological curvature in two groups were higher than those before intervention (P ＜ 0.01), and which in the observation group was significantly higher than that in control group (P ＜ 0.01). The collar comfort and compliance in the observation group were better than those in control group (u = 3.33, 3.60, P ＜ 0.01).

Conclusions The application effect of personalized cervical collar models generated by 3D printing based on spiral CT and digital cameras in the functional rehabilitation of cervical spondylosis yields is significant, which can effectively control the condition, restore the physiological shape of the cervical vertebrae, improve the function and range of motion of the cervical vertebrae, and provide higher comfort. It can also enhance the patient's compliance.