intra-articular ketamine administration in equine midcarpal joint: clinical, biochemical and cytological evaluations

نویسندگان

a. raayat jahromi

a. tabatabaei naeini

s. nazifi

چکیده

providing suitable analgesia following diagnostic and therapeutic arthroscopic surgeries, that areconsidered to cause some degree of postoperative pain, is a necessity in equine practice. the aim of thepresent study was to evaluate the equine synovial fluid biochemical and cytological changes as well asclinical assessments of the joint following intra-articular administration of ketamine. six adult healthydonkeys were selected after clinical examination. synovial fluid samples were taken from both middle carpaljoints after routine preparation. ketamine 2 mg/kg and 100 mg lidocaine 2% were administered to the rightand left joints, respectively. synovial fluid collection from the joints was performed at 12, 24, 48 and 192 hafter medication. cytological examination, total protein, glucose, specific gravity, alkaline phosphates (alp),aspartate aminotransferase (ast), lactate dehydrogenase (ldh), viscosity and quality of mucin clot weremeasured. joint circumference, flexion test and lameness examination, stimulation of the joint skin area and radiographic examination were performed as clinical evaluations. comparison of treatments was performed by nonparametric sign test and wilcoxon rank sum test. significance level was set to p≤0.05. in the ketamine group, increased joint circumference, positive flexion test and negative response to the ball-point pressure of the joint skin area were seen, unlike that of lidocaine. mucin clot quality test and viscosity, the amount of total nucleated cell count (tncc), mononuclear and neutrophil count, specific gravity, total protein content, alp, ast and ldh of the ketamine treated joints revealed considerable differences between various sampling times compared to the 0 time and also between the ketamine and lidocaine groups (p>0.05). it was concluded that intra-articular ketamine administration in equine carpal joint resulted in acute inflammatory changes, and failed to demonstrate analgesia; therefore, it is not safe to the joint environment and is not recommended as a local analgesic following arthroscopic surgeries.

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Intra-articular ketamine administration in equine midcarpal joint: clinical, biochemical and cytological evaluations

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عنوان ژورنال:
iranian journal of veterinary research

ناشر: shiraz university

ISSN 1728-1997

دوره 13

شماره 3 2012

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