Comparison of the Mechanical Properties of Nasal Cartilage Preserved in Ethanol at ۴°C versus Normal Saline at -۱۸°C for Rhinoplasty Reuse

Introduction: This study aimed to compare the mechanical properties of nasal cartilage preserved in ethanol at ۴ °C versus normal saline at -۱۸ °C, with the goal of assessing their suitability for reuse in subsequent nasal surgeries. Methods: Twenty nasal septal cartilage samples from patients who had undergone rhinoplasty were preserved for two months using two different methods. Ten cartilages were stored in alcohol at ۴ °C, while the remaining ten were stored in normal saline at -۱۸ °C. Additionally, a control group consisting of ten fresh cartilage samples was included for comparison. The mechanical properties (namely Young's modulus, fracture stress, yield stress, ductility, and tensile strength) were measured using a universal tensile testing machine STM-۲۰ and analyzed to evaluate the effects of the preservation methods. Results: Significant differences were observed between the groups in mean tensile strength, ductility, Young's modulus, and yield stress (P

کلیدواژه ها:

Nasal cartilage ، Rhinoplasty ، Secondary rhinoplasty ، Mechanical properties