Morphometric Parameters of the Axis Related to Intralaminar Fixation
Year: 2025
Type: article
Abstract: ABSTRACT Objective: To evaluate the morphometric parameters of the C2 (axis) lamina related to the intralaminar fixation technique and compare the dimensions between sexes. Methods: Descriptive anatomical study of 59 C2 vertebrae from cadavers (30 male and 29 female). Seven morphometric parameters were bilaterally measured by four independent examiners using a standard analog caliper. Statistical analysis included normality tests, t-Student, Mann-Whitney, and Kruskal-Wallis. Results: Morphometric measurements showed significant differences between sexes, with greater values in males (p<0.05). Lamina thickness was less than 4 mm in 25.20% of cases, more frequently in females. Conclusions: Intralaminar fixation of the axis must account for anatomical variations, particularly in females. Lamina thickness below 4 mm limits the safe use of 3.5 mm screws, emphasizing the need for detailed preoperative assessment. Level of Evidence IV; Descriptive Anatomical Observational Study.
Source: Coluna/Columna
Authors: VITOR ARAúJO GONçALVES, MATHEUS PIPPA DEFINO, GABRIEL MATTOS GOES, THIAGO DE OLIVEIRA DORIGãO, HELTON LUIZ APARECIDO DEFINO
Institution: Universidade de São Paulo
Language: English
Subfield: Surgery
Field: Medicine
Domain: Health Sciences
Open Access status: diamond
OpenAlex ID: W4413247064