CT Motion-Analysis of Implant Loosening in Total Wrist Arthroplasty: A Pilot Study.

Daniel Reiser¹, Sanj Kakar², Olof Sandberg³, Per Wretenberg¹, Marcus Sagerfors¹

¹Department of Orthopedics and Hand Surgery, Faculty of Medicine and Health, Örebro University, Örebro, Sweden.

²Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota.

³Sectra AB, Linköping, Sweden.

PubMed PMC DOI PDF

Abstract

INTRODUCTION: Total wrist arthroplasty (TWA) is a motion-preserving treatment option for wrist arthritis. High-precision measurement methods for implant migration such as computed tomography motion-analysis (CTMA) can potentially detect poor implant fixation. The aim of this pilot study was to assess CTMA as a complementary method to diagnose aseptic loosening of TWA. MATERIALS AND METHODS: Three…

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