Caudal Pole Hemi-meniscectomy Through an Arthroscopic Caudomedial Portal: A Cadaveric Study

Introduction: Medial meniscal injury is common in dogs with cranial cruciate disease. Arthroscopic resection of the caudal pole without damaging the cartilage is challenging. The purpose of this study was to verify the benefits of a caudomedial arthroscopic port (CAPG) for caudal pole hemi-meniscectomy.

Materials and Methods: Ten paired canine pelvic limbs were used. Each cadaver was used for arthroscopy using the standard cranial portals in one leg, and the contralateral leg for the additional CAPG. Specimen were disarticulated afterward and the completeness of caudal pole hemimeniscectomy was documented. Iatrogen articular cartilage injury (IACI) was recorded using India ink for staining articular surface.

Results: The extent of the caudal pole hemimeniscectomy (mean ± SD, percentage of the medial meniscus, which was removed) was significantly greater when performed through a caudal portal (29,75 ± 12,89%) compared with the cranial portal (8,53 ± 6,26%) (p = 0.015). There was no significant difference in surgical duration or overall IACI comparing the two groups.

Discussion/Conclusion: A caudomedial portal for caudal pole hemimeniscectomy is feasible and allows more complete resection of meniscal tissue. No major difference was found between the two procedures regarding iatrogenic damage to neurovascular or intra-articular structures, however, cartilage damage was mostly identified in non-weight bearing areas in the CAPG.

Acknowledgements: The authors declare that equipment was provided by ArthrexVet (Naples, Florida, United States), of which A.P. and S.P.A. are course instructors/consultants.

 

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Artikel online veröffentlicht:
26. Oktober 2022