Stefan Calin-Daniel, Marsavina Liviu, Miu Catalin Adrian
Department of Mechanics and Strength of Materials, Politehnica University Timisoara, Timisoara, Romania.
Orthopedics Unit, "Dr. Victor Popescu" Emergency Military Hospital, Timisoara, România.
Open Vet J. 2024 Nov;14(11):3108-3112. doi: 10.5455/OVJ.2024.v14.i11.40. Epub 2024 Nov 30.
Cancellous bone mechanical properties are directly linked to structural integrity, which is a result of bone quantity, the quality of its bone matrix, and its microarchitecture. Several studies highlighted the bone behavior under specific loads, contributing to understanding risk factors and developing more effective therapeutic strategies. The anatomy and stability of iliac bone fractures, providing insight into pelvic trauma management.
To evaluate the anisotropic behavior of fracture toughness of porcine iliac bone.
Longitudinal and transversal specimens from pork iliac bone were cut and tested in three-point bending fixtures at room temperature, in order to determine the fracture toughness of the cancellous iliac bone.
The tests on the entire iliac bone reveal a brittle behavior. The tests on notched specimens cut on longitudinal and transversal directions show different fracture toughness values. Also, a brittle behavior occurs. The obtained results are at the lower limit of other fracture toughness results of cancellous bones.
Our results point out the anisotropic behavior of the cancellous iliac bone. Higher fracture toughness values were obtained in the longitudinal direction comparing with the transversal direction with 36.5 %.
松质骨的力学性能与结构完整性直接相关，而结构完整性是骨量、骨基质质量及其微观结构共同作用的结果。多项研究着重探讨了特定载荷下的骨行为，这有助于理解风险因素并制定更有效的治疗策略。髂骨骨折的解剖结构与稳定性，为骨盆创伤的处理提供了见解。
评估猪髂骨断裂韧性的各向异性行为。
从猪髂骨切取纵向和横向标本，在室温下于三点弯曲夹具中进行测试，以测定松质髂骨的断裂韧性。
对整个髂骨的测试显示出脆性特征。对沿纵向和横向切割的带缺口标本进行的测试显示出不同的断裂韧性值。同样呈现出脆性特征。所获结果处于其他松质骨断裂韧性结果的下限。
我们的结果表明松质髂骨具有各向异性行为。纵向方向获得的断裂韧性值比横向方向高36.5%。
