Accuracy and agreement between optical navigation (NDI Polaris) and postoperative CT for glenoid pin placement: a cadaveric validation study using AR-guidance.

Hoel Letissier^1,2, Damien Cariou^3,4, Agathe Trehin^3,4, Gilles Walch⁵, Julien Berhouet⁶, Jean Chaoui^3,4

¹Department of Orthopaedic Surgery, University of Brest, Brest, France.

²LaTIM, INSERM, UMR 1101, SFR IBSAM, Brest, France.

³Imascap, Plouzané, France.

⁴Stryker, Lyon, France.

⁵Department of Orthopaedic Surgery, Centre Orthopédique Santy, Lyon, France.

⁶Department of Orthopaedic Surgery, University of Tours, Tours, France.

PubMed DOI

Abstract

Optimizing glenoid component positioning is a key determinant of stability, function and implant survival in total shoulder arthroplasty. Postoperative computed tomography (CT) is considered the reference method for assessing guide-pin or implant alignment, but it remains a retrospective evaluation and is often difficult to obtain in cadaveric research settings. Optical navigation systems such as…

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