Infrared image-guidance for intraoperative assessment of limb length discrepancy during total hip arthroplasty procedures

Jerry Yan; Akash Chaurasia; Hannah Takasuka; Aditi Jithendra; Claire State; Kathleen McCarren; Robert Li; Evan Bender; Matthew Hill; Thomas Benassi; Julius Oni; Amir Manbachi

doi:10.1117/12.2548860

16 March 2020 Infrared image-guidance for intraoperative assessment of limb length discrepancy during total hip arthroplasty procedures

Jerry Yan, Akash Chaurasia, Hannah Takasuka, Aditi Jithendra, Claire State, Kathleen McCarren, Robert Li, Evan Bender, Matthew Hill, Thomas Benassi, Julius Oni, Amir Manbachi

Author Affiliations +

Proceedings Volume 11315, Medical Imaging 2020: Image-Guided Procedures, Robotic Interventions, and Modeling; 113150D (2020) https://doi.org/10.1117/12.2548860
Event: SPIE Medical Imaging, 2020, Houston, Texas, United States

Abstract

During total hip arthroplasty (THA) procedures, orthopedic surgeons rely on visual and tactile cues to minimize the risk of a limb length discrepancy (LLD) arising from improper implant placement and selection. This paper outlines a novel application of a commercial infrared (IR) motion controller, Leap Motion, to function as an optical tracker of LLD. Additionally, a custom benchtop testing model was used to evaluate accuracy and precision of this commercial IR motion controller against a custom-built IR stereo vision camera. This paper includes a discussion of the algorithms and infrared technology used to image and localize points. The novel design discussed in this paper has clinical applications for a custom-built IR stereo vision setup that will be positioned above the incision site during a THA procedure. Accompanying this solution concept is a fiducial with IR-visible landmarks for quick and accurate point selection and a software algorithm that measures changes between pre- and post-operative leg length.

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Citation Download Citation

Jerry Yan, Akash Chaurasia, Hannah Takasuka, Aditi Jithendra, Claire State, Kathleen McCarren, Robert Li, Evan Bender, Matthew Hill, Thomas Benassi, Julius Oni, and Amir Manbachi "Infrared image-guidance for intraoperative assessment of limb length discrepancy during total hip arthroplasty procedures", Proc. SPIE 11315, Medical Imaging 2020: Image-Guided Procedures, Robotic Interventions, and Modeling, 113150D (16 March 2020); https://doi.org/10.1117/12.2548860

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