Point on endplate	Depth as a function of spinal location and age
Right [7]	Depth = 0.46 + 0.0006*location + 0.012*age
Middle [8]	Depth = 0.88 − 0.03*location + 0.010*age
Left [9]	Depth = 0.46 + 0.007*location + 0.011*age
Anterior [4]	Depth = 0.35 − 0.05*location + 0.010*age
Middle [3]	Depth = 0.96 − 0.05*location + 0.010*age
Posterior [2]	Depth = 0.89 − 0.03*location + 0.010*age