Utility of percutaneous catheters for local anaesthetics infusion for postoperative pain control in lumbar arthrodesis. A prospective cohort study. / Utilidad de los catéteres percutáneos para perfusión continua de anestésico local en el manejo del dolor postoperatorio en pacientes sometidos a artrodesis lumbar instrumentada. Estudio de cohortes prospectivas.

OBJECTIVE: To evaluate whether postoperative continuous wound infiltration of levobupivacaine through two submuscular catheters connected to two elastomeric pumps after lumbar instrumented arthrodesis is more effective than intravenous patient-controlled analgesia. MATERIAL AND METHODS: An observational, prospective cohorts study was carried out. The visual analogue scale, the need for additional rescue analgesia and the onset of adverse effects were recorded. RESULTS: Pain records measured with visual analogue scale scale were significantly lower in the 48hours postoperative record at rest (p=.032). The other records of visual analogue scale showed a clear tendency to lower levels of pain in the group treated with the catheters. No statistically significant differences were found in the rescue analgesia demands of the patients. The adverse effects were lower in the catheter group (6 cases versus 11 cases) but without statistical differences. CONCLUSIONS: A trend to lower pain records was found in the group treated with catheters, although differences were not statistically significant.

Utilidad de los catéteres percutáneos para perfusión continua de anestésico local en el manejo del dolor postoperatorio en pacientes sometidos a artrodesis lumbar instrumentada. Estudio de cohortes prospectivas / Utility of percutaneous catheters for local anaesthetics infusion for postoperative pain control in lumbar arthrodesis. A prospective cohort study

Objetivo: Valorar si la administración asociada de levobupivacaína a través de dos catéteres percutáneos submusculares conectados a dos bombas elastoméricas en el postoperatorio de la artrodesis instrumentada lumbar es más eficaz que el uso aislado de analgesia intravenosa controlada por el paciente con cloruro mórfico y comparar sus efectos secundarios. Material y método: Estudio observacional, prospectivo, de cohortes. Se comparó la necesidad de analgesia de rescate entre ambos grupos, la valoración subjetiva del dolor mediante la escala visual analógica y la presencia de efectos adversos con una y otra técnica. Resultados: No se encontraron diferencias estadísticamente significativas en cuanto a las necesidades de analgesia de rescate. El dolor medido con la escala visual analógica fue significativamente menor (p = 0,032) en reposo a las 48h postoperatorias en el grupo tratado con catéteres. La escala visual analógica media en el resto de momentos presentó una tendencia a un menor dolor postoperatorio en el grupo tratado con catéteres, pero sin significación estadística. No hubo diferencias estadísticamente significativas en los efectos adversos, aunque en el grupo tratado con catéteres hubo 6 casos de efectos adversos frente a 11 casos del grupo tratado con analgesia convencional. Conclusiones: Se observó una tendencia en el grupo tratado con catéteres a presentar menor dolor postoperatorio con menos efectos indeseables, aunque las diferencias no fueron estadísticamente significativas

Objective: To evaluate whether postoperative continuous wound infiltration of levobupivacaine through two submuscular catheters connected to two elastomeric pumps after lumbar instrumented arthrodesis is more effective than intravenous patient-controlled analgesia. Material and methods: An observational, prospective cohorts study was carried out. The visual analogue scale, the need for additional rescue analgesia and the onset of adverse effects were recorded. Results: Pain records measured with visual analogue scale scale were significantly lower in the 48hours postoperative record at rest (p=.032). The other records of visual analogue scale showed a clear tendency to lower levels of pain in the group treated with the catheters. No statistically significant differences were found in the rescue analgesia demands of the patients. The adverse effects were lower in the catheter group (6 cases versus 11 cases) but without statistical differences. Conclusions: A trend to lower pain records was found in the group treated with catheters, although differences were not statistically significant