Evaluation of the accuracy and intra- and interobserver reliability of three manual laxity tests for canine cranial cruciate ligament rupture—An ex vivo kinetic and kinematic study

Marina Lampart, Brian H. Park, Benjamin Husi, Richard Evans, Antonio Pozzi

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

Objectives: To investigate the accuracy and intra- and interobserver reliability of the cranial drawer test (CD), tibial compression test (TCT), and the new tibial pivot compression test (TPCT) in an experimental setting resembling acute cranial cruciate ligament rupture (CCLR) and to elucidate the ability to subjectively estimate cranial tibial translation (CTT) during testing. Study design: Experimental ex vivo study. Sample population: Ten cadaveric hindlimbs of large dogs. Methods: Kinetic and 3D-kinematic data was collected while three observers performed the tests on each specimen with intact (INTACT) and transected cranial cruciate ligament (CCLD) and compared using three-way repeated-measures ANOVA. Subjectively estimated CTT (SCTT), obtained during a separate round of testing, was compared to kinematic data by Pearson correlation. Results: CTT was significantly higher for CCLD than for INTACT for all tests, resulting in 100% sensitivity and specificity. TPCT induced the highest CTT and internal rotation. Intra- and interobserver agreement of translation was excellent. For rotation and kinetics, agreement was more variable. SCTT strongly correlated with the objectively measured values. Conclusion: The CD, TCT and the new TPCT were all accurate and reliable. The high translations and rotations during TPCT are promising, encouraging further development of this test. SCTT was reliable in our experimental setting. Clinical significance: Veterinary manual laxity tests are accurate and reliable in acute CCLR. The TPCT might have potential for the assessment of subtle and rotational canine stifle instabilities. The high reliability of SCTT implies that grading schemes for stifle laxity, similar to human medicine, could be developed.

Original languageEnglish (US)
Pages (from-to)704-715
Number of pages12
JournalVeterinary Surgery
Volume52
Issue number5
DOIs
StatePublished - Jul 2023
Externally publishedYes

Bibliographical note

Funding Information:
This study was supported by a grant from the Albert Heim Foundation of the Swiss Cynological Society.

Funding Information:
The authors would like to thank the team of Prof. Dr. med. vet Michael Weishaupt for their support with the use of their facilities during data collection. We also gratefully acknowledge Michelle Aimée Oesch from Vetcom for the photographs. Open access funding provided by Universitat Zurich.

Publisher Copyright:
© 2023 The Authors. Veterinary Surgery published by Wiley Periodicals LLC on behalf of American College of Veterinary Surgeons.

PubMed: MeSH publication types

  • Journal Article

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