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Introduction Spasticity represents a medical problem whose incidence is increasing during the last years due to pathologies such as cerebral palsy , stroke, multiple sclerosis , trauma or encephalopathy, affecting both adults and children. The treatments include rehabilitation, pharmacotherapy and surgery, among which we highlight intrathecal baclofen infusion devices. Material and methods Intrathecal baclofen devices implanted patients in Clinical Hospital of Santiago de Compostela from 2005 to 2018 were selected for retrospective analysis using assessment of spasticity scales, such as Ashworth Scale. Complications are described. Results Surgery was performed in 17 patients for baclofen pump implant, achieving an improvement of 2 points on the Ashworth Scale in 88.2% of the patients and of 1 point on the Penn Scale in 94%. Complications were seen in 3 patients. Conclusions Intrathecal baclofen is a simple technique with good results for improving the quality of life of patients with spasticity.

Solitary fibrous tumours/haemangiopericytomas (SFT/HPC) are fibroblastic mesenchymal neoplasms that harbour a genetic fusion of NAB2/STAT6. There are few reported cases in the central nervous system (CNS), of which spinal tumours are minority. We present a case of a 63-year-old woman with progressive paraparesis and a sensory level of T6. On the MRI we detected an intradural extramedullary lesion on T9-T10. We performed a laminectomy with an intraoperative ultrasound study in which we observed a heterogeneous lesion with an infiltrating pattern affecting the medulla at several points, and resection of the lesion. Immunohistological findings revealed positivity for vimentin, CD34 and STAT6; Ki-67 was 2%. A final diagnosis of SFT/HPC with SFT phenotype was made. SFT/HPC of the CNS is a rare neoplasm that should be taken into account in the differential diagnosis of these kinds of lesions, as clinical and MRI findings often lead to errors in diagnostic approach. The support of intraoperative ultrasound can assist in surgical decision-making.