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Force measurements during posterior calvarial vault osteodistraction: A novel measurement method
Aalto Univ, Sch Elect Engn, Dept Elect Engn & Automat, POB 13000, Aalto 00076, Finland..
Univ Helsinki, Cent Hosp, Dept Plast Surg, POB 266, Helsinki 00290, Finland..
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Surgical Sciences, Plastic Surgery.
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Surgical Sciences, Plastic Surgery.
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2017 (English)In: Journal of Cranio-Maxillofacial Surgery, ISSN 1010-5182, E-ISSN 1878-4119, Vol. 45, no 6, p. 981-989Article in journal (Refereed) Published
Abstract [en]

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.

Place, publisher, year, edition, pages
2017. Vol. 45, no 6, p. 981-989
Keywords [en]
Posterior calvarial vault osteodistraction, Force measurement, Osteodistraction, Craniosynostosis, Craniosynostosis surgery
National Category
Surgery
Identifiers
URN: urn:nbn:se:uu:diva-329718DOI: 10.1016/j.jcms.2017.02.013ISI: 000403624200024PubMedID: 28389105OAI: oai:DiVA.org:uu-329718DiVA, id: diva2:1143893
Conference
Congress of the European-Association-for-Cranio-Maxillo-Facial-Surgery, SEP 15, 2016, London, ENGLAND
Available from: 2017-09-22 Created: 2017-09-22 Last updated: 2017-09-22Bibliographically approved

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Nowinski, DanielSaiepour, Daniel

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