Dose Evaluation of Medical Staff During Proximal Femur Fracture Surgery Using Fluoroscopy

At a glance

Type of study

Original research, Dosimetry measurement study

Who was studied

Orthopedic surgeons

Size

n = 40 procedures

Where

Brazil

Topics

Dosimetry and monitoringEye lens and cataractsDose reduction techniques

Summary based on

the abstract

What it found

• Estimated annual effective doses for leading and auxiliary surgeons were about 1.3-1.5 mSv, roughly 7.5% of the annual limit, assuming 325 procedures per year.

  Key figures: 1.3-1.5 mSv; ~7.5% of annual limit (n= 325 procedures yr-1)

• Estimated annual eye lens doses for both surgeons approached 30% of the current eye lens dose limit.

  Key figures: 4.7-5.8 mSv yr-1

• Hp(10) measured on the thyroid shield correlated with Hp(3) at the glabella, suggesting it can serve as a preliminary indicator (within ±15%) of the need for dedicated eye lens monitoring.

  Key figures: ±15%; 15 mSv threshold

• The glabella (forehead) was identified as the most appropriate eye lens dosimeter location; highest hand doses occurred in complex subtrochanteric fractures.

Limits to keep in mind

Single-hospital study of 40 procedures with annual doses extrapolated from an assumed workload of 325 procedures per year; only surgeons were monitored and details come from the abstract only.

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