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Research Article| Volume 62, ISSUE 1, P102-106, January 2023

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Use of a Lightweight Portable Fluoroscopy Device for Obtaining Weightbearing Ankle Images

  • Haggai Schermann
    Correspondence
    Address correspondence to: Haggai Schermann, MD, MPH, Foot and Ankle Research and Innovation Laboratory, Massachusetts General Hospital, Boston, MA.
    Affiliations
    Foot & Ankle Research and Innovation Laboratory (FARIL), Department of Orthopaedic Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA

    Foot and Ankle Service, Department of Orthopaedic Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA

    Division of Orthopedic Surgery, Tel Aviv Sourasky Medical Center, Tel Aviv University, Tel Aviv, Israel
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  • Soheil Ashkani-Esfahani
    Affiliations
    Foot & Ankle Research and Innovation Laboratory (FARIL), Department of Orthopaedic Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA

    Foot and Ankle Service, Department of Orthopaedic Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA
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  • John Zhao
    Affiliations
    Foot & Ankle Research and Innovation Laboratory (FARIL), Department of Orthopaedic Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA

    Foot and Ankle Service, Department of Orthopaedic Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA
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  • Bart Lubberts
    Affiliations
    Foot & Ankle Research and Innovation Laboratory (FARIL), Department of Orthopaedic Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA
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  • Philip Kaiser
    Affiliations
    Foot & Ankle Research and Innovation Laboratory (FARIL), Department of Orthopaedic Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA

    Foot and Ankle Service, Department of Orthopaedic Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA
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  • Gregory Waryasz
    Affiliations
    Foot & Ankle Research and Innovation Laboratory (FARIL), Department of Orthopaedic Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA

    Foot and Ankle Service, Department of Orthopaedic Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA
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      Abstract

      Portable fluoroscopy devices provide point-of-care imaging in emergency and out-patient clinics. In this prospective study, we compared weightbearing images of syndesmosis obtained using a novel lightweight portable battery-powered fluoroscopy device with those obtained with a conventional radiography device. Eleven healthy participants underwent bilateral 3-view weightbearing imaging of both ankles using a radiography (X-ray group) device and a portable fluoroscopy system (LPF group). Anteroposterior, mortise, and lateral views were compared between the 2 techniques. Radiographic measurements were done by 2 observers. These measurements included talar tilt, tibiofibular clear space, tibiofibular overlap, plafond malleolar angle, medial distal tibial angle, medial clear space, lateral distal tibial angle, anterior and posterior tibiofibular distance were measured using the appropriate view. Data were compared between the 2 techniques; the interobserver agreement was calculated within each group. P < .05 was considered statistically significant. Comparing the 2 imaging modalities, there was no significant difference between the measurements in LPF and X-ray groups except plafond malleolar angle. The overall interobserver agreement was excellent between the 2 observers. There was no significant difference between the measures by the 2 observers and between the bilateral ankles. Fluoroscopy was associated with about 50% extra radiation exposure, although the absolute amount of radiation was not clinically significant. These results support the use of weightbearing images using portable fluoroscopy device as an alternative for the conventional radiography systems.

      Level of Clinical Evidence

      Keywords

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