From: Risk for surgical complications after previous stereotactic body radiotherapy of the spine
 | SBRT over all | Primary SBRT | Secondary SBRT | Prior conventional RT | ||||
---|---|---|---|---|---|---|---|---|
Number of treatments | Median prescription dose (range) | Number of treatments | Median prescription dose (range) | Number of treatments | Median prescription dose (range) | Number of treatments | Median prescription dose (range) | |
Over all | 32 | 19,3 (15–65) | 15 | 21.7 Gy (15.7–65 Gy) | 17 | 18 Gy (15–24 Gy) | 16 | 30 Gy (20–40 Gy) |
1 fraction | 25 | 18,4 Gy (15–24 Gy) | 10 | 20.5 Gy (15.7–24 Gy) | 15 | 18 Gy (15–20 Gy) | 3 | 20 Gy in 5 fractions |
2 fractions | 3 | 24Â Gy | 2 | 24Â Gy | 1 | 24Â Gy | 11 | 30Â Gy in 10 fractions |
3 fractions | 2 | 17,7 Gy (15–20,4 Gy) | 1 | 20.4 Gy | 1 | 15 Gy | 1 | 35 Gy in 14 fractions |
5 fractions | 1 | 25Â Gy | 1 | 25Â Gy | Â | Â | 1 | 40Â Gy in 20 fractions |
17 fractions | 1 | 65Â Gy | 1 | 65Â Gy | Â | Â | Â | Â |