TY - JOUR A1 - Vasilikos, Ioannis A1 - Beck, Jürgen A1 - Ghanaati, Shahram Michael A1 - Grauvogel, Jürgen A1 - Nisyrios, Themistoklis A1 - Grapatsas, Konstantinos A1 - Hubbe, Ulrich T1 - Integrity of dural closure after autologous platelet rich fibrin augmentation: an in vitro study T2 - Acta neurochirurgica N2 - Background: Watertight closure of the dura mater is fundamental in neurosurgery. Besides the classical suturing techniques, a variety of biomaterials have been proposed as sealants. Platelet rich fibrin (PRF) is an autologous biomaterial which can readily be obtained through low-speed centrifugation of patient’s own blood. It is rich in fibrin, growth factors, leucocytes and cytokines and has shown adhesive properties while promoting the physiological wound healing process. In this study, we investigated the effect of applying PRF in reinforcing the watertight dura mater closure. Methods: We created an in vitro testing device, where the watertight dura mater closure could be hydrostatically assessed. On 26 fresh harvested bovine dura maters, a standardised 20-mm incision was closed with a running suture, and the leak pressure was measured first without (primary leak pressure) and then with PRF augmentation (secondary leak pressure). The two groups of measurements have been statistically analysed with the Student’s paired t test. Results: The “running suture only group” had a leak pressure of 10.5 ± 1.2 cmH2O (mean ± SD) while the “PRF-augmented group” had a leak pressure of 47.2 ± 2.6 cm H2O. This difference was statistically significant (p < 0.001; paired t test). Conclusions: Autologous platelet rich fibrin augmentation reliably reinforced watertight closure of the dura mater to a > 4-fold increased leak pressure after failure of the initial standard running suture technique. KW - Watertight Dural closure KW - Dural onlays KW - Autologous biomaterial KW - Neurosurgery Y1 - 2020 UR - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/62733 UR - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-627337 SN - 0942-0940 N1 - A Correction to this article was published on 03 September 2021. DOI: 10.1007/s00701-021-04907-y N1 - Open Access funding enabled and organized by Projekt DEAL. VL - 162 IS - 4 SP - 737 EP - 743 PB - Springer CY - Wien [u.a.] ER -