Epidural needle insertion : A  large registry analysis.

CONCLUSION: Variation in midline insertion depth is an independent risk factor for epidural complications; however, variability precludes use of depth as a reliable guide to insertion in individual patients.
PMID: 30338337 [PubMed - as supplied by publisher]

Source: Der Anaesthesist - October 18, 2018 Category: Anesthesiology Authors: Bomberg H, Paquet N, Huth A, Wagenpfeil S, Kessler P, Wulf H, Wiesmann T, Standl T, Gottschalk A, Döffert J, Hering W, Birnbaum J, Kutter B, Winckelmann J, Liebl-Biereige S, Meissner W, Vicent O, Koch T, Bürkle H, Sessler DI, Raddatz A, Volk T Tags: Anaesthesist Source Type: research