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KMID : 0364920220470020086
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Journal of Radiation Protection and Research
2022 Volume.47 No. 2 p.86 ~ p.92
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Radiation Dose Distribution of a Surgeon and Medical Staff during Orthopedic Balloon Kyphoplasty in Japan
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Ono Koji
Kunugita Naoki
Kumasawa Takafumi
Shimatani Keiichi
Kanou Masatoshi
IchiroYamaguchi
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Abstract
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Background : The present study investigated the radiation dose distribution of balloon kyphoplasty (BKP) among surgeons and medical staff, and this is the first research to observe such exposure in Japan.
Materials and Methods : The study subjects were an orthopedic surgeon (n=1) and surgical staff (n=9) who intervened in BKP surgery performed at the National Hospital Organization Disaster Medical Center (Tokyo, Japan) between March 2019 and October 2019. Only disposable protective gloves (0.022 mmPb equivalent thickness or less) and trunk protectors were used, and no protective glasses or thyroid drapes were used.
Results and Discussion : The surgery time per vertebral body was 36.2 minutes, and the fluoroscopic time was 6.8 minutes. The average exposure dose per vertebral body was 1.46 mSv for the finger (70 μm dose equivalent), 0.24 mSv for the lens of the eye (3 mm dose equivalent), 0.11 mSv for the neck (10 mm dose equivalent), and 0.03 mSv for the chest (10 mm dose equivalent) under the protective suit. The estimated cumulative radiation exposure dose of 23 cases of BKP was calculated to be 50.37 mSv for the fingers, 8.27 mSv for the lens, 3.91 mSv for the neck, and 1.15 mSv for the chest.
Conclusion : It is important to know the exposure dose of orthopedic surgeons, implement measures for exposure reduction, and verify the safety of daily use of radiation during surgery and examination.
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KEYWORD
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Radiation Dose, Lens of the Eye, Balloon Kyphoplasty, Orthopedic Surgeons
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