DETERMINATION OF BIOMECHANICAL PROPERTIES OF PATELLAR LIGAMENT IN DOGS (CANIS FAMILIARIS LINNAEUS, 1758)

Abstract The biomechanical study of articular ligaments generate subsidies for research of biomaterials or treatment techniques for replacement or repair of these structures on the occasion of rupture or degeneration. Therefore, We carried out a biomechanical traction assay of the patellar ligament in 53 dogs, totaling 106 patellar ligaments, determining maximum resistance in Newtons (N) and deformation in millimeters (mm). These data were correlated to body biometrics of the dogs used. The strength of the left and right patellar ligaments in the female group were 642.6N ±297.2N and 627.0N ±300.6N (p=0.028), respectively. Males presented higher values (p=0.035). The right patellar ligament had a maximum capacity of resistance of 850.8N ±299.9N, and the left one of 729.3N ±283.5N. Statistically, there is no significant correlation (r> 0.7) between the biometric parameters measured and the bodily strength or deformation of the patellar ligament. Despite no statistical significant correlation, data from the strength and deformation of the canine patellar ligament can support further research aimed at correcting ruptures of joint ligaments.

摘要
关节韧带的生物力学研究可为韧带断裂或退变后的修复、置换相关生物材料研发及治疗技术开发提供重要参考。为此，本研究对53只犬的髌韧带（patellar ligament）开展生物力学牵拉试验，共纳入106份髌韧带样本，测定其最大抗载荷能力（单位：牛顿，N）与形变值（单位：毫米，mm），并将所得数据与受试犬的身体生物测量参数进行相关性分析。雌性组左侧及右侧髌韧带的抗载荷能力分别为642.6N±297.2N与627.0N±300.6N（p=0.028）；雄性组抗载荷能力显著更高（p=0.035）。右侧髌韧带最大抗载荷能力为850.8N±299.9N，左侧为729.3N±283.5N。统计学分析表明，受试犬的身体生物测量参数与髌韧带的抗载荷能力及形变值之间无显著相关性（r>0.7）。尽管未发现显著统计学相关性，但犬髌韧带抗载荷能力与形变值的相关数据仍可为后续关节韧带断裂修复相关研究提供可靠的实验依据。