Medişoğlu, M.Sabri; Öçbe, Melisa

The anterior clinoid process (ACP) is a critical anatomical landmark for skull base surgery. Pneumatization of the ACP can affect surgical planning and outcomes. Morphometric evaluation provides essential data for safer interventions. A total of 154 CT images from individuals aged 1–79 years were retrospectively analyzed. ACP pneumatization types (Type 0–3), bilateral height and width, and inter-ACP distance were evaluated. Morphometric values were stratified by age and gender. Among 154 patients, 54.5% were female and 45.5% male. Pneumatization was more common in males, with statistically significant differences observed for both left (p < 0.001) and right (p = 0.021) sides. ACP widths showed a moderate positive correlation with age. Males had wider ACPs, whereas females had greater ACP heights. Logistic regression indicated male gender and younger age as predictors of ACP pneumatization. ACP pneumatization is significantly influenced by gender but not by age. Morphometric differ ences exist between sexes and age groups. Knowledge of these variations is essential for minimizing intraoperative complications during skull base surgeries.

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