Pre-clinical evaluation of a video-based drill guidance system for orthopaedic trauma surgery

N. Sheth, P. Vagdargi, A. Sisniega, A. Uneri, G. M. Osgood, J. H. Siewerdsen

Research output: Chapter in Book/Report/Conference proceedingConference contribution


Purpose: Pelvic fracture fixation is a challenging procedure that commonly relies on 2D fluoroscopic guidance to place guidewires within complex bone corridors. Prior work reported on a video-on-drill navigation system for guidewire insertion as a potential solution. Here, we assess performance across a range of hardware components to help guide the design of future system prototypes with respect to clinical requirements. Methods: The video-on-drill system uses a camera rigidly mounted on the drill and multimodality fiducial markers (optical and radio-opaque) to provide real-time trajectory visualization. This work reports on the selection of a new camera+lens configuration. Configurations were assessed across two cameras (referred to as the ArduCam and ELP) and five lens options (A45-A90). Clinical requirements were specified by an orthopaedic-surgeon in terms of the nominal drill operating distance (o •) and operating area (o ). Performance was evaluated in terms of the accuracy of fiducial marker pose estimation (δo •), and the field of view (FOV). Results: At matched FOV, the accuracy for the ELP camera was significantly better (p < 0.01) with median δo • of 1.26 mm (1.1 mm IQR) compared to the ArduCam [median δo • of 1.85 mm (2.0 mm IQR)]. The accuracy of the A45 and A55 lens was found to be suitable (δo • < 2 mm) while providing sufficient FOV at nominal drill operating conditions. Conclusion: With respect to application requirements, the camera+lens combination (ELP+Ardu55) was identified to provide the best performance, serving as an important precursor to future design iterations of the video-on-drill system.

Original languageEnglish (US)
Title of host publicationMedical Imaging 2021
Subtitle of host publicationImage-Guided Procedures, Robotic Interventions, and Modeling
EditorsCristian A. Linte, Jeffrey H. Siewerdsen
ISBN (Electronic)9781510640252
StatePublished - 2021
EventMedical Imaging 2021: Image-Guided Procedures, Robotic Interventions, and Modeling - Virtual, Online
Duration: Feb 15 2021Feb 19 2021

Publication series

NameProgress in Biomedical Optics and Imaging - Proceedings of SPIE
ISSN (Print)1605-7422


ConferenceMedical Imaging 2021: Image-Guided Procedures, Robotic Interventions, and Modeling
CityVirtual, Online


  • Camera calibration
  • Computer vision
  • Drill guidance
  • Image-guided surgery
  • Pelvic surgery

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Biomaterials
  • Radiology Nuclear Medicine and imaging


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