CT-based micromotion analysis for tracking fracture displacement and fragment movement in trochanteric hip fractures: an agreement study.

Henrik Åberg¹, Mari Hänni², Olof Sandberg³, Kenneth B Jonsson⁴

¹Orthopaedics, Department of Surgical Sciences, Uppsala University; and Uppsala University Hospital, Uppsala, Sweden. Henrik.j.aberg@gmail.com.

²Radiology, Department of Surgical Sciences, Uppsala University; and Uppsala University Hospital, Uppsala, Sweden.

³Sectra AB, Linköping, Sweden.

⁴Orthopaedics, Department of Surgical Sciences, Uppsala University; and Uppsala University Hospital, Uppsala, Sweden.

PubMed PMC DOI PDF

Abstract

BACKGROUND AND PURPOSE: 2-dimensional radiographs may underestimate 3-dimensional fracture displacement. CT-based micromotion analysis (CTMA) enables precise quantification of interfragmentary movement in 3 dimensions. We aimed to evaluate CTMA for quantifying fracture displacement, surgical reduction, and postoperative fragment movement in trochanteric hip fractures, and assessed measurement agre…

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