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33rd Annual Scientific Meeting proceedings
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Session:
Date/Time: 30-11--0001 (00:00 - 00:00)
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Location:
Use of needle arthroscopy in the canine coxofemoral joint and comparison with a standard 1.9-mm arthroscopy: an ex-vivo study.
Roels JR, Guillet MG, Cachon TC*
VetAgro-Sup, Marcy l'Etoile, France.
Objectives:
To describe needle arthroscopy in the canine coxofemoral joint, evaluate its feasibility and compare to a standard 1.9-mm arthroscopy.
Methods:
Twelve hindlimbs from six skeletally immature Beagle cadavers were collected. Preoperative computed tomography was performed to assess joint morphology. Each hindlimb underwent either a needle arthroscopy (NA) using a Nanoscope (Arthrex Inc, Naples, Florida) or a 1.9-mm standard arthroscopy (SA) (KARL STORZ SE & Co. KG, Tuttlingen, Germany). Feasibility of techniques were recorded. Three independent observers (an ECVS Diplomate, two ECVS trainees) subjectively assessed the quality of images between the NA and SA group. Hips were disarticulated and an India ink assay was performed to assess articular cartilage injury (ACI). Mean ACI and standard deviation were calculated.
Results:
The mean age was 5 months, and the median weight was 9.6 kg. Scope insertion and identification of intra-articular structures were achieved in all hips of the NA (n=6) and SA group (n=6). Image quality from needle arthroscopy was subjectively found to be superior compared to the SA group. ACI was documented in all cases in the NA group and in all but one case in the SA group and were all graded minor (< 10% total cartilage area). The ACI represented 0.25% ± 0.21 for the NA group and 0.35% ± 0.39 for the SA group with no significant difference.
Conclusions:
Needle coxofemoral arthroscopy is feasible in dogs and offers undeniable advantages with similar ACI compared to a 1.9-mm arthroscopy.
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