2

Key differences in preoperative and postoperative RT

ItemPreoperative RTPostoperative RT
DoseLower dose (50 Gy)Higher dose (60-66 Gy)
Treatment volumeSmaller treatment volumeLarger treatment volume
Rate of would complicationsMore acute wound complications (35%)Wound complications up to 17%
FeaturesOffers the possibility to perform translational research on the clinicopathological behaviour of individual sarcoma subtypes to RTIncrease late RT toxicities:increased fibrosisincreased edemaincreased joint stiffness
Rarely, may provide the option of omission of RT when adequate margins are achieved. Ideally this should be discussed in a multidisciplinary meeting