Stereotactic Radiosurgery (SRS) in Malignant Spasticity and Hypertonia

"The treatment will be administered with a TrueBeam™ (Varian Medical Systems, Palo Alto, CA, USA) linac, equipped with a Millenium 120-leaves MLC.~The target will be represented by 5 mm of the specific spinal nerve responsible for the spams. A lateral~1 mm margin will be added to the target to generate the corresponding planning treatment volume (PTV). The prescribed dose will be 45-60 Gy in a single fraction. The treatment dose will be chosen based on patients' general condition, and possibility to respect the dose limits (constraints) for the organs at risk (OARs)."