Publication date: Available online 21 December 2015
Source:Journal of Cranio-Maxillofacial Surgery
Author(s): Carl-Peter Cornelius, Goetz Andreas Giessler, Frank Wilde, Marc Christian Metzger, Gerson Mast, Florian Andreas Probst
BackgroundComputer-assisted planning and intraoperative implementation using templates have become appreciated modalities in craniofacial reconstruction with fibula and DCIA flaps due to saving in operation time, improved accuracy of osteotomies and easy insetting. Up to now, a similar development for flaps from the subscapular vascular system, namely the lateral scapular border and tip, has not been addressed in the literature.Patients/MethodA cohort of 12 patients who underwent mandibular (n=10) or maxillary (n=2) reconstruction with free flaps containing the lateral scapular border and tip using computer-assisted planning, stereolithography (STL) models and selective laser sintered (SLS) templates for bone contouring and sub-segmentation osteotomies was reviewed focussing on iterations in the design of computer generated tools and templates.ResultsThe technical evolution migrated from hybrid STL models over SLS templates for cutout as well as sub-segmentation with a uniplanar framework to plug-on tandem template assemblies providing a biplanar access for the in toto cutout from the posterior aspect in succession with contouring into sub-segments from the medial side. Conclusion: The latest design version is the proof of concept that virtual planning of bone flaps from the lateral scapular border can be successfully transferred into surgery by appropriate templates.
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