1, in a normal, neutral both LADS are not equal share of 81.3% (three hundred and seventy-four hundred and fifty fifths), increases with age, atlanto-axial joint stability to instability to stability of the trend.
1, in the normal, the neutral position by bilateral LADS unequal share of 81.3% (370/455), increases with age, atlantoaxial instability and then to have a stable steady trend.
1, in normal people, neutral bilateral LADS does not equal share of 81.3% (370/455), with increasing age, atlantoaxial joint is stable to unstable to stable trend.