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Related Experiment Video

Updated: Apr 25, 2026

Treatment of Ankle Osteoarthritis with Total Ankle Replacement Through a Lateral Transfibular Approach
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Radiation exposure in total ankle replacement.

Chayanin Angthong1, Samuel B Adams2, Mark E Easley2

  • 1Thammasat University, Klong Luang, Pathum Thani, Thailand.

Foot & Ankle International
|August 28, 2014
PubMed
Summary
This summary is machine-generated.

Total ankle replacement surgery involves low radiation exposure, about one-fifth of the yearly limit. Minimizing fluoroscopy duration and choosing implants with extramedullary alignment can reduce radiation risks for patients and staff.

Keywords:
anklearthroplastyfluoroscopyradiation

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Area of Science:

  • Orthopedic Surgery
  • Medical Imaging
  • Radiation Oncology

Background:

  • Diagnostic imaging radiation increases cancer risk.
  • No prior data on ionizing radiation in total ankle replacement (TAR).
  • This study quantifies radiation exposure during TAR.

Purpose of the Study:

  • Quantify intraoperative fluoroscopic dose and duration in TAR.
  • Examine patient and technical factors influencing radiation exposure.
  • Assess radiation dose variations across different implant designs.

Main Methods:

  • 55 patients undergoing TAR with STAR, Salto-Talaris, or INBONE prostheses were studied.
  • Intraoperative fluoroscopic dose, duration, patient demographics, and implant details were recorded.
  • Statistical analysis identified relationships between variables and radiation exposure.

Main Results:

  • Mean fluoroscopic dose was 1.15 mGy and duration was 77 seconds.
  • Radiation dose positively correlated with fluoroscopy duration (r = .50, P < .001).
  • INBONE implants showed higher radiation doses (1.53 mGy) compared to STAR (0.99 mGy) and Salto-Talaris (0.88 mGy), influenced by intramedullary referencing guides (P = .035).

Conclusions:

  • Average patient radiation dose in TAR is low, approximately 20% of the annual limit.
  • Radiation dose is directly associated with fluoroscopy duration.
  • Surgeon-controlled factors like implant choice (extramedullary systems) and minimizing fluoroscopy time can reduce radiation exposure and associated cancer risk.