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Comparison of dorsal and medial arthroscopic approach to canine coxofemoral joint: a cadaveric study

  • Sangjun Oh (Department of Surgery, School of Veterinary Medicine, Jeonbuk National University) ;
  • Jinsu Kang (Department of Surgery, School of Veterinary Medicine, Jeonbuk National University) ;
  • Namsoo Kim (Department of Surgery, School of Veterinary Medicine, Jeonbuk National University) ;
  • Suyoung Heo (Department of Surgery, School of Veterinary Medicine, Jeonbuk National University)
  • Received : 2022.09.13
  • Accepted : 2022.12.06
  • Published : 2023.01.31

Abstract

Background: Arthroscopic exploration of ventromedial part of canine coxofemoral joint is limited in conventional dorsal approach. Objectives: We evaluated the efficacy of a medial arthroscopic approach to the coxofemoral joint of dogs by analyzing the joint visible area and performing a safety analysis. Methods: Arthroscopic approaches to the coxofemoral joint were made in five cadavers using a traditional (dorsal) and novel (medial) approach. Three observers scored the visible area of images and videos of the acetabulum and femur. A safety analysis was performed via dissection of the medial hind limb. The distance between neurovascular structures and arthroscopic portals was measured. Results: The acetabulum was more visible in the dorsal than in the medial approach, with mean visualization scores of 16 ± 0.00 and 11.83 ± 1.26, respectively. The medioventral side of the femur was significantly more visible in the medial than in the dorsal approach, with mean visualization scores of 3.9 ± 0.99 and 6.93 ± 0.58, respectively. Safety analysis confirmed the medial portal site was safe, provided that the surgeon has comprehensive knowledge of the joint. The minimum distance from the arthroscopic medial portals to the nearest neurovascular structures was 2.5 mm. Conclusions: A medial arthroscopic approach to the canine coxofemoral joint has potential clinical application. Dorsal and medial approaches differ significantly and have distinct purposes. The medial approach is useful to access the ventromedial joint, making it an eligible diagnostic method for an arthroscopic evaluation of this area.

Keywords

Acknowledgement

The authors would like to thank M.Y., J.E., J.Y., and the members of surgery laboratory team at the School of Veterinary Medicine, Jeonbuk National University, for their support.

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