Ultrasound-Guided Genicular Nerve Block in Chronic Knee Pain: A Prospective Longitudinal Study

• Autor(a) principal: Albuquerque, Nelson; Serviço de Medicina Física e de Reabilitação do hospital de S. Teotónio, Viseu, Portugal
• Data de Publicação: 2021
• Outros Autores: Pinto, Joana; Serviço de Anestesiologia do hospital de S. Teotónio, Viseu, Portugal, Loureiro, Maria Do Céu; Serviço de Anestesiologia do hospital de S. Teotónio, Viseu, Portugal, Félix, Tiago; Serviço de Medicina Física e de Reabilitação do hospital de S. Teotónio, Viseu, Portugal, Peixoto, Irina; Serviço de Medicina Física e de Reabilitação do hospital de S. Teotónio, Viseu, Portugal
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
• Texto Completo: https://doi.org/10.25759/spmfr.375
• topic: Nerve Block; Knee Joint; Osteoarthritis, Knee; Pain Management; Articulação do Joelho; Bloqueio Nervoso; Osteoartrite do Joelho; Tratamento da Dor

Introduction: Chronic knee pain is multifactorial and its management is multimodal, with peripheral nerve blocks being a therapeutic alternative after failure of conservative first-line treatment. our objective was to evaluate the immediate and short-term symptomatic improvement of patients with gonarthrosis submitted to genicular nerve block.Material and Methods: Twenty blockades of the genicular nerves (ropivacaine and methylprednisolone) were performed, after which questionnaires were carried out to characterize the knee pain in several time frames. The data obtained were processed using IBM-SPSS Software version 24.0.Results: The 20 patients included in the study (3 men and 17 women) had a median age of 74.5 years, the median pain before the procedure was 9, after was 2 and a month later was 6 (according to numeric rating scale). A percentage of 30% of patients had side effects, particularly paresthesia. There was a positive correlation that tended to be significant (p <0.10) between pain before the procedure and pain 1 month after the procedure and a statistically significant positive correlation (p <0.05) between pain with the procedure and pain 1 month after. Conclusion: Genicular nerve block has contributed to the symptomatic relief of chronic knee pain in the short term and it seems that the intensity of pre-procedure pain and procedural pain are factors that influence the analgesic response to this intervention.