Table 3.

Assessment of atlantoaxial load–displacement (mm) under incremental failure-load testing (10 N to failure) with electromechanic testing machine, TAL disrupted

Loading	10 N	20 N	30 N	40 N	50 N	100 N	150 N	200 Na	250 Na	300 Nb
Mean	0.01	0.37	0.67	0.90	1.10	1.92	2.79	3.52	4.63	5.97
SD	0.01	0.25	0.33	0.42	0.48	0.70	0.95	1.38	1.94	1.33
Range	0.01–0.02	0.01–0.72	0.17–1.10	0.27–1.41	0.34–1.60	0.73–2.40	1.12–3.44	1.54–4.61	2.05–6.39	5.03–6.91

^aData of four specimens succeeding loading condition

^bData of two specimens succeeding loading condition