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Inicio Revista Española de Anestesiología y Reanimación (English Edition) Ultrasound-guided saphenous nerve block is an effective technique for perioperat...
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Vol. 62. Issue 8.
Pages 428-435 (October 2015)
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Vol. 62. Issue 8.
Pages 428-435 (October 2015)
Original Article
Ultrasound-guided saphenous nerve block is an effective technique for perioperative analgesia in ambulatory arthroscopic surgery of the internal knee compartment
El bloqueo ecoguiado del nervio safeno resulta efectivo para la analgesia perioperatoria en los procedimientos ambulatorios artroscópicos realizados en el compartimento interno de la rodilla
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A. Bonet
Corresponding author
abonetb@gmail.com

Corresponding author.
, M. Koo, A. Sabaté, I. Otero, J. Bocos, A. Pi
Servicio de Anestesiología y Reanimación, Hospital Universitario de Bellvitge, L’Hospitalet de Llobregat, Barcelona, Spain
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Tables (3)
Table 1. Patient demographics and intraoperative hemodynamic data of the overall group (internal and external meniscus surgery).
Table 2. Pain, analgesic requirements and quality in the overall group.
Table 3. Pain, analgesic requirements and quality in the internal compartment and external compartment surgery subgroups.
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Abstract
Objectives

Arthroscopic knee surgery is a minimally invasive technique with moderate pain during the first 24h. Our main objective was to evaluate the efficacy of ultrasound-guided saphenous nerve block as a method of pain control intraoperatively and postoperatively for this surgery.

Materials and methods

This is a prospective and observational study. All patients received general anesthesia with laryngeal mask in the saphenous group; nerve block was performed with 10ml ropivacaine 0.475%. Location of the surgery (external compartment group/internal compartment group), morphine consumption, VAS for pain at 5, 30, 60 and 120min and 24h after surgery, need for rescue medication, onset of nausea and vomiting, length of stay in PACU, delayed discharge and satisfaction were evaluated.

Results

The study included 73 patients. Of these, 46 received saphenous nerve block and 27 did not receive it. Consumption of intraoperative, postoperative and total morphine was significantly lower in the saphenous group as well as VAS at 24h. In the subgroup of internal compartment surgery differences in VAS 24h, morphine consumed and length of stay in PACU were maintained.

Conclusions

The ultrasound-guided block of saphenous nerve, particularly in the internal compartment arthroscopic knee surgery, decreases analgesic requirements, obtaining more effective pain control in the first 24h postoperatively and without any known side effects.

Keywords:
Saphenous block
Arthroscopic knee surgery
Analgesia
Resumen
Objetivos

La cirugía artroscópica de rodilla es una técnica mínimamente invasiva con un dolor moderado durante las primeras 24h. Nuestro objetivo principal ha sido determinar el valor del bloqueo ecoguiado del nervio safeno como método de control analgésico intraoperatorio y postoperatorio inmediato.

Material y métodos

Estudio observacional y prospectivo. Todos los pacientes recibieron anestesia general con mascarilla laríngea. En el grupo de bloqueo safeno se realizó el bloqueo con 10ml de ropivacaína al 0,475%. Se determinó la localización de la cirugía (grupo compartimento externo/grupo compartimento interno), el consumo de morfina, la EVA a los 5, 30, 60 y 120min después de la cirugía y a las 24h, la necesidad de fármaco de rescate, la aparición de náuseas y vómitos, el tiempo de estancia en la URPA, el retraso en el alta y el grado de satisfacción.

Resultados

Se incluyeron 73 pacientes; en 46 la cirugía fue realizada con bloqueo safeno y en 27 sin bloqueo. El consumo de morfina intraoperatorio, postoperatorio y total fue significativamente menor en el grupo safeno, así como la EVA a las 24h. En el subgrupo de cirugía de compartimento interno se mantuvieron las diferencias en la EVA 24h, el consumo de morfina y el tiempo de estancia en la URPA.

Conclusiones

El bloqueo ecoguiado del nervio safeno, especialmente en la cirugía artroscópica del compartimento interno de la rodilla, disminuye los requerimientos analgésicos obteniendo una mejor calidad en el control del dolor, mayoritariamente a las 24h de la realización de la cirugía y sin ningún efecto secundario.

Palabras clave:
Bloqueo safeno
Cirugía artroscópica de rodilla
Analgesia

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