Abstract
Introduction: Pyramidal muscle syndrome is a signs and symptoms set caused by sciatic nerve compression and its exit from the pelvis through the channel between the pyramidal muscle and the superior genus. We present a series of cases of oncological patients with this syndrome with the aim of describing the therapeutic result of steroid infiltration in the pyramidal muscle without perineural hydrodissection of the sciatic nerve.
Methods: A prospective study of 10 cases, evaluated between February 2014 and May 2015, in the pain and palliative care service of the National Oncological Institute "Dr. Juan Tanca Marengo "-SolcaGuayaquil. Patients with cancer of any etiology and diagnostic criteria of pyramidal syndrome entered the study. The patients were treated with corticosteroid infiltrations without perineural hydrodissection of the sciatic nerve, directed by pyramid-shaped muscle ultrasound and physical therapy.
Results: Ten cases of patients with pyramidal syndrome (9 women) are included. With age ranges between 50 and 70 years. The most affected side was the right in 5 cases. In 8 cases the magnetic resonance was normal and in 2 cases muscle hypertrophy was described. The infiltration procedure was completed without complications and the patients received additional physiotherapy. The initial EVA was> 6 in 8 patients and 2 cases with VAS of 5. The patients had a functional limitation of 10-20%. The post-blocking EVA decreased to 0-1 in all cases.
Conclusion: In the present series of cases the pyramidal syndrome was successfully controlled with steroid infiltration without perineural hydrodissection of the sciatic and physical therapy.