Abstract
PURPOSE: This cross-sectional study aimed to evaluate the relationship between occipital spur (OS) with both craniocervical posture and craniofacial morphology. METHODS: The study involved 240 lateral cephalograms from subjects with and without OS. The craniocervical posture and facial morphology of every individual were assessed through Uceph software analysis of their cephalograms, considering 32 variables. The Independent T-test and the Mann-Whitney U-test were used to evaluate the relationships between the measures and OS. Differences in craniocervical posture and craniofacial morphology between the two groups were investigated by logistic regression. RESULTS: Subjects with OS exhibited more severe forward head posture (FHP) (larger C0-C1, Ba-C3ia, C2ap-C4ip, craniocervical angle, CVT-OPT, and NSL-C2') and larger facial configuration (greater mandibular body length, posterior cranial base length, and posterior facial height) than the subjects without OS. Larger C2ap-C4ip (OR 1.53; 95% CI 1.282~1.82), Craniocervical angle (OR 1.70; 95% CI 1.457~1.977) and NSL-C2' (OR 1.18; 95% CI 1.097~1.264), were associated with greater likelihood of having OS. CONCLUSION: The subjects with OS were more prone to forward head posture than the control group. For subjects observed with OS on cephalograms, attention should be given to their possible abnormal cervical and head postures.