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Open Access Research article

Comparing radiation exposure during percutaneous vertebroplasty using one- vs. two-fluoroscopic technique

Yen-Yao Li12*, Tsung-Jen Huang12, Chin-Chang Cheng12, Meng-Huang Wu1 and Ching-Yu Lee1

Author Affiliations

1 Department of Orthopedic Surgery, Chang Gung Memorial Hospital, Chiayi, No.6, W. Sec., Chia-pu Rd, Putz City, Chiayi County, 613, Taiwan

2 College of Medicine, Chang Gung University, Taoyuan, Taiwan

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BMC Musculoskeletal Disorders 2013, 14:38  doi:10.1186/1471-2474-14-38

Published: 22 January 2013

Abstract

Background

Percutaneous vertebroplasty (PV) requires relatively lengthy fluoroscopic guidance, which might lead to substantial radiation exposure to patients or operators. The two-fluoroscopic technique (two-plane radiographs obtained using two fluoroscopes) during PV can provide simultaneous two-planar projections with reducing operative time. However, the two-fluoroscopic technique may expose the operator or patient to increased radiation dose. The aim of this study was to quantify the amount of radiation exposure to the patient or operator that occurs during PV using one- vs. two-fluoroscopic technique.

Methods

Two radiation dosimeters were placed on the right flank of each patient and on the upper sternum of each operator during 26 single-level PV procedures by one senior surgeon. The use of two-fluoroscopic technique (13 patients) and one-fluoroscopic technique (13 patients) were allocated in a consecutive and alternative manner. The operative time and mean radiation dose to each patient and operator were monitored and compared between groups.

Results

Mean radiation dose to the patient was 1.97 ± 1.20 mSv (95% CI, 0.71 to 3.23) for the one-fluoroscopic technique group vs. 0.95 ± 0.34 mSv (95% CI, 0.85 to 1.23) for the two-fluoroscopic technique group (P =0.031). Mean radiation dose to the operator was 0.27 ± 0.12 mSv (95% CI, 0.17–0.56) for the one-fluoroscopic technique group vs. 0.25 ± 0.14 mSv (95% CI, 0.06–0.44) for the two-fluoroscopic technique group (P = 0.653). The operative time was significantly different between groups: 47.15 ± 13.48 min (range, 20–75) for the one-fluoroscopic technique group vs. 36.62 ± 8.42 min (range, 21–50) for the two-fluoroscopic technique group (P =0.019).

Conclusion

Compared to the one-fluoroscopic technique, the two-fluoroscopic technique used during PV provides not only shorter operative times but also reduces the radiation exposure to the patient. There was no significant difference between the two techniques with regards to radiation exposure to the operator.

Keywords:
Vertebral compression fracture; Osteoporosis; Vertebroplasty; Radiation dose