Ozer et al developed equations for estimating the posterior lumbar dural depth in children. Tjhe authors are from Zonguldak Karaelmas University in Turkey.
Patient selection: child 7 to 12 years
Parameters:
(1) body weight in kilograms
(2) body surface area in square meters
posterior dural depth in cm at L4 to L5 interspace =
= (0.048 * (body weight)) + 1.094
posterior dural depth in cm at L4 to L5 interspace =
= (2.119 * (body surface area)) + 0.337
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