Force measurements during posterior calvarial vault osteodistraction : A novel measurement method

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http://hdl.handle.net/10138/298257

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Ritvanen , A , Savolainen , M , Nowinski , D , Saiepour , D , Paulasto-Krockel , M , Hukki , J , Tukiainen , E & Leikola , J 2017 , ' Force measurements during posterior calvarial vault osteodistraction : A novel measurement method ' , Journal of Cranio-Maxillo-Facial Surgery , vol. 45 , no. 6 , pp. 981-989 . https://doi.org/10.1016/j.jcms.2017.02.013

Title: Force measurements during posterior calvarial vault osteodistraction : A novel measurement method
Author: Ritvanen, A.; Savolainen, M.; Nowinski, D.; Saiepour, D.; Paulasto-Krockel, M.; Hukki, J.; Tukiainen, E.; Leikola, J.
Contributor: University of Helsinki, Plastiikkakirurgian yksikkö
University of Helsinki, Clinicum
University of Helsinki, Plastiikkakirurgian yksikkö
Date: 2017-06
Language: eng
Number of pages: 9
Belongs to series: Journal of Cranio-Maxillo-Facial Surgery
ISSN: 1010-5182
URI: http://hdl.handle.net/10138/298257
Abstract: Posterior calvarial vault osteodistraction (PCVO) has become increasingly popular in the correction of craniosynostosis. When compared to cranioplasty, PCVO offers a shorter, less invasive operation, greater intracranial volume advancement and a lower rate of relapse. In general, distraction protocols are based primarily on clinical observations rather than systematic research. Faster distraction protocols may reduce complications. However, distraction protocols producing higher forces can increase complications. Thus, we need to understand these forces in order to improve distraction protocols and devices. We developed a force measurement method that can be used on PCVO devices. Here, we present preliminary data about the forces developed during PCVO. We measured the forces in four bicoronal craniosynostosis patients during PCVO. We observed a linear-like trend between the force increase and the distraction distance within distraction sessions. We also observed a step-wise force increase between distraction sessions and found that the distraction force relaxed rapidly shortly after the distraction session. The mean maximum pre distraction force for one distracter was 20.4 N, while the mean maximum end-distraction force for one distracter was 57.6 N. Our data suggests that current treatment protocols might be re-evaluated favouring shorter distraction distances and more frequent distraction sessions. (C) 2017 European Association for Cranio-Maxillo-Facial Surgery. Published by Elsevier Ltd. All rights reserved.
Subject: Posterior calvarial vault osteodistraction
Force measurement
Osteodistraction
Craniosynostosis
Craniosynostosis surgery
DISTRACTION OSTEOGENESIS
CRANIOSYNOSTOSIS
3126 Surgery, anesthesiology, intensive care, radiology
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