Treatment of cranial cruciate ligament rupture in the feline stifle: Biomechanical comparison of a standard fabella-tibial suture and lateral sutures placed between quasi-isometric points
VCOT: Veterinary and Comparative Orthopaedics and Traumatology
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De, S. R., Sutcliffe, M., Rousset, N., Holmes, M., & Langley-‐Hobbs, S. (2015). Treatment of cranial cruciate ligament rupture in the feline stifle: Biomechanical comparison of a standard fabella-tibial suture and lateral sutures placed between quasi-isometric points. VCOT: Veterinary and Comparative Orthopaedics and Traumatology, 401-408. https://doi.org/10.3415/VCOT-14-05-0078
Objective: To determine whether a lateral suture placed with bone anchors between quasi-isometric points in a cat is superior to a standard fabella-tibial suture, for the stabilization of cranial cruciate ligament (CrCL) rupture compared to an intact stifle joint. Study design: Biomechanical cadaveric study. Methods: Six stifle joints with intact cruciate ligaments from three skeletally mature cats were placed in a loading mounting set and tested with axial loads of 20N and 60N at three different joint angles (75°,130° and 160°). The procedure was repeated with a transected CrCL; a stabilized stifle joint after a combination of three lateral suture techniques (fabella-tibial suture technique [SFT]; femoro-tibial suture technique 1 [FTS-1] and femoro-tibial suture technique 2 [FTS-2]). Radiographic examination of the relative position of the tibia to the fixed femur was compared. Results: Stabilization of the stifle joint with lateral sutures had comparable stability to the intact specimens in the cranio-caudal direction (p = 0.2) but not in the proximo-distal direction for the SFT (p = 0.04) and FTS-2 technique (p = 0.03). There was no significant difference between the three stabilization techniques (p >0.05). Clinical significance: Lateral sutures placed with bone anchors at quasi-isometric points performed better than SFT and FTS-2 in stabilizing the feline stifle after CrCL rupture in the proximo-distal plane. Biomechanical stability in the cranio-caudal plane after placement of a lateral suture across the feline stifle was similar to the intact CrCL.
The authors would like to recognise the British Veterinary Orthopaedic Association for funding this project.
External DOI: https://doi.org/10.3415/VCOT-14-05-0078
This record's URL: https://www.repository.cam.ac.uk/handle/1810/249203