Evaluation of the Lateral Collateral Ligament After Fibular Head Transposition in Dogs |
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| Authors: | JACQUES DUPUIS DMV MS Diplomate ACVS JOSEPH HARARI MS DVM Diplomate ACVS DONALD M BLACKKETTER PhD ANTHONY M GALLINA DVM PhD |
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| Institution: | Department of Veterinary Clinical Sciences, College of Veterinary Medicine, Washington State University, Pullman, WA;Department of Mechanical Engineering, College of Engineering, University of Idaho, Moscow, ID;Department of Veterinary Pathology and Microbiology, College of Veterinary Medicine, University of Illinois, Urbana, IL. |
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| Abstract: | Cranial transposition of the fibular head stabilizes the stifle joint by displacing the distal attachment of the lateral collateral ligament (LCL). The forces applied to the LCL after displacement may cause ligamentous elongation. This investigation evaluated the morphological, histological, and biomechanical changes of the LCL after fibular head transposition (FHT) in dogs. Unilateral cranial cruciate ligament (CCL) excision and FHT were performed on 25 dogs. Cross-sectional area, length, histological, and structural properties of the LCL were evaluated 3 weeks, 4 months, and 10 months after surgery. Ligament length means were significantly increased at week 3, month 4, and month 10 compared with intraoperative length means. No significant changes in elongation were observed after week 3. Fibrovascular proliferation within the LCL increased the cross-sectional area and associated structural properties. |
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