Effect of Intraarticular Bupivacaine Administration on Postoperative Pain Relief after Arthrotomic or Arthroscopic Management of Cranial Cruciate Ligament Rupture in Dogs

Abstract

The goal of the study was to disclose superiority of either arthroscopy or arthrotomy in the treatment of CCL rupture with respect to post-surgical pain, to find whether bupivacaine administered intraarticularly is of any value in reducing postoperative pain, and through the present pain scoring system consisting of degree of the lameness, CPS and VAS to recommend therapeutical plan of CCL repair offering the better analgesia.Thirty-seven dogs with cranial crucial ligament (CCL) rupture were randomly assigned to arthrotomy (20 dogs) or arthroscopy (17 dogs). The dogs were subjected to the intraarticular administration of bupivacaine 2.5 mg/kg or saline 0.5 ml/kg (control group) after the closure of joint capsule, the two protocols being distributed at random. Postoperative analgesia was assessed with regard to the degree of the lameness, cumulative pain score (CPS) and visual analogue scale (VAS), recorded at 1, 2, 3, 4, 5, 6, 8, 12 and 24 hours after intraarticular administration of bupivacaine or saline. Postoperative analgesia was most of the time significantly (p < 0.01) better in dogs that underwent arthroscopy and received bupivacaine intraarticularly when compared to the other groups. There was no significant difference in postoperative analgesia between arthroscopic control group and arthrotomy groups, both with and without bupivacaine. The results of this study suggest that intraarticular administration of bupivacaine after arthroscopic surgical management of cranial crucial ligament rupture provides satisfactory postoperative analgesia 24 hours after the arthroscopy.

Controle da dor em pequenos animais

“…A anestesia epidural é indicada para procedimentos cirúrgicos nos membros pélvicos, coxal, região anal, perineal e caudal (RAUSER et al, 2005;SKARDA, 1996), cirurgias retro umbilicais como, cesariana, ovariohisterectomia, redução de prolapsos, caudectomia, orquiectomia e osteossíntese em membros pélvicos (LUNA, 2005).…”

Analgesic effect of intra-articular ropivacaine injection after arthroscopic surgery on the shoulder joint in dogs

“…Intra-articular injection of local anaesthetics with adjuvants has been introduced as an alternative to post-operative analgesia (Rauser et al 2005;Vintar et al 2005), and most studies con-ducted to date have reported that intra-articular injection of a drug is sufficiently effective for diagnostic procedures (Boden et al 1994;Convery et al 1998;Moiniche et al 1999;Rauser et al 2005). Ropivacaine (s-(-)-l-propyl-2',6'-pipecoloxylidide hydrochloride monohydrate) is a new amide local anaesthetic single isomer drug (McCrae et al 1995).…”