Comparison of Three Techniques for Arthrocentesis of the Carpal Joint in Dromedary Camels: A Prospective Study
Keywords:Arthrocentesis Camel Dromedary Carpus joint capsule CT
The aim of this prospective study was to determine the appropriate approaches for arthrocentesis of the carpal joint in dromedary camels and to compare between these approaches with regard to their success rate, feasibility, accuracy and ease of performance. Twenty-two cadaveric camel forelimbs obtained from 11 camel cadavers, and 4 living camels (6 joints) underwent arthrocentesis for therapeutic and diagnostic purposes, were used in this study. For studying gross anatomy of the suggested approaches, 4 forelimbs were used. For CT anatomy 3 forelimbs (one/each technique) were scanned before and after injection of iodinated contrast medium. For in-vitro evaluation of the techniques 15 forelimbs were used (5/each technique). To test the ease of performance in the living camels, arthrocentesis of 6 joints in 4 camels was performed by a single operator while the animal sited in kneeling position (3 camels) and standing position (one camel). Based on the results, there were three feasible approaches for arthrocentesis of carpal joint in camel, the dorso-medial, dorso-lateral, and the lateral approaches. The dorso-medial approach was easily performed and more accurate than the other approaches. The dorso-medial approach was successful with accuracy index of 100% after the first attempts, whilst the dorso-lateral and the lateral approaches have lower rates of success. The procedure was well tolerated in all camels.
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