Morphometric Analysis and Classification of the Cross-Sectional Shape of the C2 Lamina

Table 2

Comparison of morphometric parameters of the C2 lamina across studies.

	Population	Specimens; (number of axes)	Thickness; (mm)	Thickness; >5.5 mm; (%)	95% CI; (lower-upper)
Current study	Korean	145; (CT scans)	6.39 ± 1.21	75.9	6.26–6.54
Cassinelli et al. (2006)	American	420		70.5; (>5 mm)	Null
Wang (2006)	American	38; (Cadavers)		79	Null
Kim et al. (2008)	Korean	102; (CT scans)		61.3	Null
Ma et al. (2010)	Chinese	120; (Cadavers)		83.3; (≥4 mm)	Null
Bhatnagar et al. (2010)	American	50		94	Null
Hu et al. (2010)	Chinese (Han)	28		“Bulk”	Null
Xin-Yu et al. (2011)	Chinese	96; (Cadavers)		85; (>5 mm)	Null
		112; (CT scans)
Yusof and Shamsi (2012)	Malaysian	98; (CT scans)		75.5; (≥5 mm)	Null
Sharma et al. (2015)	Indian	38; (Cadavers)		36.9	Null
		(CT scans)		NA
Saetia and Phankhongsab (2015)	Thai	200		79	Null