Zaffagnini S, Allen A A, Suh J K, Fu F H
Istituto Ortopedico Rizzoli, Università di Bologna, Italy.
Knee Surg Sports Traumatol Arthrosc. 1996;3(4):199-201. doi: 10.1007/BF01466616.
Normal joint conditions are altered during arthroscopic surgery, and these changes have uncertain ultrastructural and biomechanical effects on articular cartilage. Experimental studies have shown that temperature variations affect the biomechanical properties of articular cartilage. We documented the temperature of the knee joint in 40 patients at the beginning and end of an arthroscopic procedure (anterior cruciate ligament reconstruction or meniscectomy). The intra-articular measurements were obtained using a digital thermometer connected to a sterile stainless steel probe. Correlation coefficients and linear regression techniques were used to determine which variables are independent predictors of joint temperature at the end of surgery. The mean knee joint temperature before surgery was 35.1 degrees +/- 1.0 degrees C and at the end of surgery 24.6 degrees +/- 1.5 degrees C. The joint temperature at the end of surgery was significantly affected by the temperature of the saline irrigant used and the length of arthroscopic procedure. The clinical implications of our findings must be clarified in animal models.
正常的关节状况在关节镜手术过程中会发生改变，并且这些变化对关节软骨具有不确定的超微结构和生物力学影响。实验研究表明，温度变化会影响关节软骨的生物力学特性。我们记录了40例患者在关节镜手术（前交叉韧带重建或半月板切除术）开始和结束时膝关节的温度。关节内测量是使用连接到无菌不锈钢探头的数字温度计进行的。相关系数和线性回归技术用于确定哪些变量是手术结束时关节温度的独立预测因素。手术前膝关节平均温度为35.1摄氏度±1.0摄氏度，手术结束时为24.6摄氏度±1.5摄氏度。手术结束时的关节温度受所用生理盐水灌洗液的温度和关节镜手术时间的显著影响。我们研究结果的临床意义必须在动物模型中加以阐明。
