Authors : Woo-Dae Park, Ki-Rae Cho, Young-Sook Lee, Chun Sik Bae and Sung Chul Lim
Abstract: The purpose of this study was to verify the efficacy of a Saphenous Nerve Block (SNB) in the decrease of surgical stress induced by post-operative pain following surgical realignment of the medial patellar luxation in dogs. All subjects were divided into 3 groups according to post-operative analgesic methods: a group with SNB (Sn, n = 5), a group with the intra-articular injection using bupivacaine (Ac, n = 5) and a control group with SNB using saline (Ct, n = 5). Surgical stress from pain was assessed at variable times after surgery using Heart Rate Variability (HRV), a Numerical Rating Scale (NRS) and measurement of blood glucose level. No significant differences in HRV were found between the Sn and Ac groups while there were significant differences between the Ac and control groups. However, the LF of the Sn group was significantly higher than that of the Ct group at 30 min. The values of the NRS in the Ac and Sn groups decreased significantly more than that of the Ct group. However, no statistical differences were found in the NRS between the Ac and Sn groups. There were no statistical differences among the groups in terms of blood glucose levels. Some evidence was found to suggest that SNB for pain reduction after realignment surgery of the medial patellar luxation in dogs is an easy technique to acquire some analgesic effects. However, the single use of SNB for pain control in realignment surgery of the medial patellar luxation is not recommended because of its weak analgesic effects.
Woo-Dae Park, Ki-Rae Cho, Young-Sook Lee, Chun Sik Bae and Sung Chul Lim, 2012. The Effect of Saphenous Nerve Block on the Surgical Stress Induced by Pain Following the Surgical Realignment of Medial Patellar Luxation in Dogs. Journal of Animal and Veterinary Advances, 11: 2270-2275.