Arthroscopy of the normal cadaveric ovine femorotibial joint: a systematic approach to the cranial and caudal compartments

R. B. Modesto; K. A. Mansmann; T. P. Schaer

doi:10.3415/VCOT-14-03-0039

Veterinary and Comparative Orthopaedics and Traumatology, Table of Contents

Vet Comp Orthop Traumatol 2014; 27(05): 387-394
DOI: 10.3415/VCOT-14-03-0039

Original Research

Schattauer GmbH

Arthroscopy of the normal cadaveric ovine femorotibial joint: a systematic approach to the cranial and caudal compartments

Authors

R. B. Modesto

¹Department of Veterinary Population Medicine, College of Veterinary Medicine, University of Minnesota-Twin Cities, Saint Paul, Minnesota, USA
K. A. Mansmann

²Arthroscopy Research Institute, Orthopaedic Sports & Arthritis Surgery, Paoli, PA, USA
T. P. Schaer

³Comparative Orthopaedic Research Laboratory, Department of Clinical Studies, New Bolton Center, University of Pennsylvania, PA, USA

Abstract

Summary

Objectives: Preclinical studies using large animal models play an intergral part in translational research. For this study, our objectives were: to develop and validate arthroscopic approaches to four compartments of the stifle joint as determined via the gross and arthroscopic anatomy of the cranial and caudal aspects of the joint.

Methods: Cadaveric hindlimbs (n = 39) were harvested from mature ewes. The anatomy was examined by tissue dissection (n = 6), transverse sections (n = 4), and computed tomography (n = 4). The joint was arthroscopically explored in 25 hindlimbs.

Results: A cranio-medial portal was created medial to the patellar ligament. The craniolateral portal was made medial to the extensor digitorum longus tendon. The medial femoral condyle was visible, as well as the cranial cruciate ligament, caudal cruciate ligament and both menisci with the inter-meniscal ligament. Valgus stress improved visibility of the caudal horn of the medial meniscus and tibial plateau. To explore the caudal compartments, a portal was created 1 cm proximal to the most caudal aspect of the tibial condyle. Both femoral condyles, menisci, caudal cruciate ligament, the popliteal tendon and the menisco-femoral ligament were visible. The common peroneal nerve and popliteal artery and vein are vulnerable structures to injury during arthroscopy.

Clinical significance: The arthroscopic approach developed in this research is ideal to evaluate the ovine stifle joint.

Keywords

Sheep - stifle - meniscus - second-look arthroscopy - translational research

Full Text

References

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