Dikici Alper Emre, Eken Gokay, Atici Teoman
Faculty of Medicine, Orthopedics and Traumatology Department, Uludag University, Gorukle Campus, Nilüfer , Bursa, 16059, Turkey.
BMC Musculoskelet Disord. 2025 Sep 1;26(1):821. doi: 10.1186/s12891-025-09083-z.
The aim of this study was to biomechanically compare three different cementing techniques for patellar component fixation in total knee arthroplasty. MATERIALS AND METHODS: Synthetic patellar bone model (Selbones© Research Laboratory, Kayseri, Turkey) was implanted with an all-polyethylene universal dome patellar component (Trauson universal dome, Stryker, Changzhou, China) using bone cement (Surgical Simplex P, Stryker, Limerick, Ireland). The test specimens were divided into three groups according to the cementing technique. Group 1 was named as "partial cementing", Group 2 as "full cementing" and Group 3 as "modification" technique. Modification technique was performed with a 50 cc injector. After fixation of the materials, the strength of fixation was tested biomechanically by applying force with isolated scissors produced using a tensile compression testing machine (UVE, Bursa-Turkey). Curves and peak stress pressures were statistically analyzed to determine which cementing technique provided the best fixation strength.
The mean peak stress pressure of a total of 30 test specimens was 1305.86 (± 24.72) N (Newton) and these values were determined as 1013.00 (± 24.72), 1334.60 (± 37.17) and 1570.00 (± 26.56) N for group 1, group 2 and group 3, respectively (p < 0.001). A statistically significant difference was found in the multiple comparisons of all groups with each other and fixation of group 3 was found to be better than group 1 and 2 (p < 0.001). CONCLUSION: The modified cementing technique demonstrated superior biomechanical fixation strength compared to conventional methods in this in vitro study. This low-cost and easily applicable technique may help reduce patellar component-related complications and warrants further evaluation in clinical settings.
本研究的目的是对全膝关节置换术中三种不同的髌骨部件固定骨水泥技术进行生物力学比较。
使用骨水泥（外科用 Simplex P，史赛克公司，爱尔兰利默里克）将合成髌骨骨模型（Selbones© 研究实验室，土耳其开塞利）与全聚乙烯通用穹顶髌骨部件（Trauson 通用穹顶，史赛克公司，中国常州）植入。根据骨水泥技术将测试样本分为三组。第 1 组命名为“部分骨水泥固定”，第 2 组为“全骨水泥固定”，第 3 组为“改良”技术。改良技术使用 50 毫升注射器进行。材料固定后，使用拉伸压缩试验机（UVE，土耳其布尔萨）制造的分离剪刀施加力，对固定强度进行生物力学测试。对曲线和峰值应力压力进行统计分析，以确定哪种骨水泥技术提供最佳的固定强度。
总共 30 个测试样本的平均峰值应力压力为 1305.86（±24.72）N（牛顿），第 1 组、第 2 组和第 3 组的这些值分别确定为 1013.00（±24.72）、1334.60（±37.17）和 1570.00（±26.56）N（p < 0.001）。在所有组之间的多重比较中发现了统计学上的显著差异，并且发现第 3 组的固定优于第 1 组和第 2 组（p < 0.001）。
在本体外研究中，改良骨水泥技术与传统方法相比显示出卓越的生物力学固定强度。这种低成本且易于应用的技术可能有助于减少与髌骨部件相关的并发症，并值得在临床环境中进一步评估。
