Augmented reality-guided periacetabular osteotomy-proof of concept.

Journal of Orthopaedic Surgery and Research
Pascal KiarostamiPatrick O Zingg

Abstract

The Ganz' periacetabular osteotomy (PAO) consists of four technically challenging osteotomies (OT), namely, supraacetabular (saOT), pubic (pOT), ischial (iOT), and retroacetabular OT (raOT). We performed a proof of concept study to test (1) the feasibility of augmented reality (AR) guidance for PAO, (2) precision of the OTs guided by AR compared to the freehand technique performed by an experienced PAO surgeon, and (3) the effect of AR on performance depending on experience. A 3D preoperative plan of a PAO was created from segmented computed tomography (CT) data of an anatomic plastic pelvis model (PPM). The plan was then embedded in a software application for an AR head-mounted device. Soft tissue coverage was imitated using foam rubber. The 3D plan was then registered onto the PPM using an anatomical landmark registration. Two surgeons (one experienced and one novice PAO surgeon) each performed 15 freehand (FH) and 15 AR-guided PAOs. The starting point distances and angulation between the planned and executed OT planes for the FH and the AR-guided PAOs were compared in post-intervention CTs. AR guidance did not affect the performance of the expert surgeon in terms of the mean differences between the planned and executed start...Continue Reading

References

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May 16, 2020·Journal of Orthopaedic Surgery and Research·Cyrill DennlerMazda Farshad

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Citations

Feb 20, 2021·Clinical Orthopaedics and Related Research·Vera M StetzelbergerMoritz Tannast
Jul 31, 2021·The International Journal of Medical Robotics + Computer Assisted Surgery : MRCAS·Philipp WinnandAli Modabber
Sep 29, 2021·Current Reviews in Musculoskeletal Medicine·J Hunter Matthews, John S Shields

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Unity
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Visual Studio
CASPA
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