Table 5. Comparison of shape of SAF of the atlas with other studies.

SAF: superior articular facet.

Studies	No. of atlas studies	Place of study	Shape of the -superior articular facet
			Oval	Kidney	Dumbbell	Bilobed	Irregular	Leaf like
Sengul and Kadioglu [10]	40	Turkey	72%	28%	0	0	0	0
Gosavi and Vatsalaswamy [12]	100	India	74%	26%	0	0	0	0
Gupta et al. [13]	35	India	42.8%	7.1%	31.4%	0	0	18.7%
Lalit et al. [11]	30	India	23.3%	20%	56.7%	0	0	0
Motagi and Ranganath [4]	50	India	33%	10%	18%	10%	39%	0
Cacciola et al. [17]	20	India	76%	24%	0	0	0	0
Present study	150	India	62%	18%	13.7%	6.35%	0	0