Mini Screws for Improving Accuracy in Navigation-assisted Spine Surgery

Clinical Spine Surgery : a Spine Publication
Sebastian A AhmadiBerk Orakcioglu

Abstract

Presentation of a surgical technique with accompanying video (Supplemental Digital Content 1, http://links.lww.com/CLINSPINE/A67) of an illustrative case. The objective of this study was to present a helpful and easy-to-implement technique for improving initial referencing accuracy, as well as rereferencing accuracy in cases of multilevel instrumentation or in cases of dislocation of the reference array. Navigation-assisted spine surgery has become standard of care in most hospitals performing complex spine interventions. Although short-segment instrumentations are fairly straight-forward with current hardware and software solutions, obtaining ideal accuracies and troubleshooting reference array disruptions remain challenging. A surgical technique is presented as a step-by-step guide using intraoperative videos and photographs as well as imaging data in an illustrative case of thoracic hemivertebra resection and dorsal instrumentation. After skin incision is performed at the index level, posterior soft tissue preparation is performed. Before firmly attaching the reference array to a spinous process we then insert a minimum of four 5 mm mini screws at any bony structure within the exposure. Then an intraoperative navigation scan...Continue Reading

References

Apr 5, 1969·Lancet·E Hitchcock
Oct 1, 1995·Journal of Neurosurgery·I H KalfasJ P Weisenberger
Jan 1, 1995·Journal of Image Guided Surgery·L P NolteL Zamorano
Jan 19, 2000·Computerized Medical Imaging and Graphics : the Official Journal of the Computerized Medical Imaging Society·H ReinhardtO Gratzl
Jun 9, 2006·Journal of Spinal Disorders & Techniques·Alfredo Quiñones-HinojosaPhilip R Weinstein

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Methods Mentioned

BETA
dissection

Software Mentioned

Arcadis Orbic
Stryker Nav3
Nav3

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