Continuous femoral nerve blockade and single-shot sciatic nerve block promotes better analgesia and lower bleeding for total knee arthroplasty compared to intrathecal morphine: a randomized trial

BMC Anesthesiology

Research Article

Joaquim Edson Vieira¹  Nora Elizabeth Rojas Álvarez²  Rosemberg Jairo Gomez Ledesma²  Marcelo Waldir Mian Hamaji³  Adilson Hamaji³ 

[1] Department of Surgery, University of São Paulo Medical School, Av. Dr. Arnaldo 455, sala 2345, Cerqueira César, CEP 01246-903, São Paulo, SP, Brazil;Hospital das Clínicas, Divisão de Anestesia, Rua Dr. Ovídio Pires de Campos, 471, Cerqueira César, CEP 05403-010, São Paulo, SP, Brazil;Institute of Orthopedics and Trauma Surgery, Hospital das Clínicas, Rua Dr. Ovídio Pires de Campos, 333, Cerqueira César, CEP 05403-010, São Paulo, SP, Brazil;

关键词: Analgesia;    Nerve Block;    Pain;    Postoperative;    Arthroplasty;    Replacement;    Knee;    Anesthesia;    Conduction;   

DOI  :  10.1186/s12871-017-0355-x

 received in 2017-02-02, accepted in 2017-05-08,  发布年份 2017

来源: Springer

【 摘 要 】

BackgroundKnee arthroplasty leads to postoperative pain. This study compares analgesia and postoperative bleeding achieved by intrathecal morphine with a continuous femoral plus single-shot sciatic nerve block.MethodsA randomized non-blinded clinical trial enrolled patients aged over 18 years old, ASA I to III who underwent total knee arthroplasty. All patients underwent spinal anesthesia with isobaric bupivacaine, 20 mg. One group received 100 mcg of intrathecal morphine (M group), and the other received a femoral nerve block by continuous infusion plus a "single shot" block of the sciatic nerve at the end of the surgery (FI group). Pain score from verbal numeric rating scale (VNRS) and morphine consumption during the first 72 h, as well as motor blockade, adverse effects, and postoperative bleeding were recorded. Analysis of variance of repeated measures with Bonferroni post-test, t-test and Fisher exact test were used for statistical analysis.ResultsThirty nine patients completed the study (M = 20; FI = 19 patients) and were similar except for higher age in the FI group. Motor blockade as well as movement pain during postanesthesia care unit (PACU) staying were not different between the groups, but movement pain was significantly lower in FI group after 24 h. Postoperative bleeding (ml) was lower in FI group.ConclusionsContinuous femoral nerve block combined with sciatic nerve block provides effective for postoperative analgesia in patients undergoing total knee arthroplasty, with lower pain scores after 24 h and a lower incidence of adverse effects and bleeding compared to intrathecal morphine.Trial registrationRetrospectively registered on https://clinicaltrials.gov/ under identifier NCT02882152, 23rd December, 2016.

【 授权许可】

CC BY   
© The Author(s). 2017