Vet Comp Orthop Traumatol 2008; 21(01): 8-14
DOI: 10.3415/VCOT-06-12-0099
Original Research
Schattauer GmbH

Pressure distributions on the medial tibial plateau after medial meniscal surgery and tibial plateau levelling osteotomy in dogs

A. Pozzi
1   Department of Veterinary Clinical Sciences,The Ohio State University, Columbus, Ohio, USA
,
A. S. Litsky
3   The Orthopaedic BioMaterials Laboratory, Departments of Orthopaedics and Biomedical Engineering, The Ohio State University, Columbus, Ohio, USA
,
J. Field
4   Orthopedic Unit, Repatriation General Hospital, Flinders University of South Australia, Australia
,
D. Apelt
1   Department of Veterinary Clinical Sciences,The Ohio State University, Columbus, Ohio, USA
,
C. Meadows
2   Department of Preventive Medicine, The Ohio State University, Columbus, Ohio, USA
,
K. A. Johnson
1   Department of Veterinary Clinical Sciences,The Ohio State University, Columbus, Ohio, USA
› Author Affiliations
Further Information

Publication History

Received 18 December 2006

Accepted 20 April 2007

Publication Date:
17 December 2017 (online)

Summary

Objective: To evaluate the effect of medial meniscal release (MMR) and medial, caudal pole hemimeniscectomy (MCH) on pressure distribution in the cranial cruciate ligament (CCL) deficient canine stifle, and with tibial plateau levelling osteotomy (TPLO). Animals: Twelve adult dogs. Methods: In experiment one, six pairs of cadaveric canine stifles with an intact CCL were axially loaded with a servo-hydraulic material testing machine and pressure distributions were mapped and quantified using pressure sensitive films. Axial loading of each joint was then repeated following MMR, and again after MCH. In experiment two, six pairs of cadaveric canine stifles with or without TPLO were tested before and after CCL transection, and each MMR and MCH procedure using the same methods of experiment 1. Results: In experiment one, MMR and MCH had significant effects on the pressure distribution resulting in a 2.5-fold increase in the percentage of surface area with pressure higher than 10 MPa. In experiment two, CCL transection resulted in a significant change in pressure distribution only in the stifle without TPLO (P<0.05). Both MMR and MCH resulted in a 1.7-fold increase in the percentage of area with peak pressure in the stifle with TPLO (P<0.05). Conclusions: Meniscal surgery results in a change in pressure distribution and magnitude within the medial compartment of the stifle. Clinical relevance: Compromised function of the meniscus by either MMR or MCH result in stress concentration which may predispose to osteoarthritis.