中国组织工程研究 ›› 2021, Vol. 25 ›› Issue (36): 5777-5781.doi: 10.12307/2021.341

• 骨与关节生物力学 bone and joint biomechanics • 上一篇    下一篇

OmniSpan与RapidLoc半月板修复系统的生物力学特性比较

张  强,岳宪虎,张  抒,谷铭勇,李  瑞   

  1. 解放军联勤保障部队第九六〇医院骨科,山东省济南市   250031
  • 收稿日期:2021-02-04 修回日期:2021-02-20 接受日期:2021-03-16 出版日期:2021-12-28 发布日期:2021-09-17
  • 通讯作者: 李瑞,硕士,副主任医师,解放军联勤保障部队第九六〇医院骨科,山东省济南市 250031
  • 作者简介:张强,男,1973年生,山东省潍坊市人,汉族,2003年第二军医大学毕业,副主任医师,博士,主要从事关节镜与运动医学方面的研究。
  • 基金资助:
    解放军联勤保障部队第九六〇医院院长基金面上项目(2017MS08),项目负责人:张强

Biomechanical properties of the OmniSpan device versus the RapidLoc device for meniscus repair

Zhang Qiang, Yue Xianhu, Zhang Shu, Gu Mingyong, Li Rui   

  1. Department of Orthopedics, The 960th Hospital of the PLA Joint Logistice Support Force, Jinan 250031, Shandong Province, China
  • Received:2021-02-04 Revised:2021-02-20 Accepted:2021-03-16 Online:2021-12-28 Published:2021-09-17
  • Contact: Li Rui, Master, Associate chief physician, Department of Orthopedics, The 960th Hospital of the PLA Joint Logistice Support Force, Jinan 250031, Shandong Province, China
  • About author:Zhang Qiang, MD, Associate chief physician, Department of Orthopedics, The 960th Hospital of the PLA Joint Logistice Support Force, Jinan 250031, Shandong Province, China
  • Supported by:
    the General Project of President’s Fund of The 960th Hospital of the PLA Joint Logistice Support Force, No. 2017MS08 (to ZQ)

摘要:


文题释义:

骨科生物力学:是利用生物力学实验方法将工程原理,尤其是机械力学原理应用于临床医学中,测试和测量骨、骨骼肌、肌腱、韧带、关节和脊柱等骨骼肌肉系统的力学特性参数,对标本进行综合评价。
半月板修复系统:用于修复半月板损伤的一系列工具的总称,包括OmniSpan、RapidLoc、FasTFix和半月板箭等,它们在结构、修复机制和操作方法等方面各具特点。

背景:半月板撕裂是临床上常见的一种损伤,用于半月板修复的方法很多,既往对各种半月板修复系统的生物力学性质和临床效果做了大量研究。但是,OmniSpan和RapidLoc半月板修复系统的生物力学比较尚未见报道。
目的:比较采用OmniSpan和RapidLoc半月板修复系统修复半月板撕裂的生物力学差异。
方法:将20只新鲜猪半月板标本随机分为RapidLoc半月板修复系统组和OmniSpan半月板修复系统组,每组10只,均制作猪半月板纵行撕裂的模型。建模后,RapidLoc半月板修复系统组按照操作指南采用单点缝合,OmniSpan半月板修复系统组采用交叉缝合的方式,每组缝合2针。然后对修复后的标本进行循环加载实验,拉力范围5-20 N,等速拉伸速度30 mm/min,循环500次。循环加载实验完成后,测定半月板撕裂区在5 N拉力下的位移度。最后进行极限载荷实验,等速拉伸速度为30 mm/min,实验完成后对标本的最大负荷和刚度进行测量比较。

结果与结论:①循环加载实验中,循环500次并在5 N的拉力下,OmniSpan半月板修复系统和RapidLoc半月板修复系统的平均位移度分别为(1.47±0.09) mm和(1.63±0.08) mm,两者比较差异有显著性意义(P=0.000 8)。②与RapidLoc半月板修复系统相比,OmniSpan半月板修复系统的最大负荷更大[(257±52) N vs. (210±35) N,P=0.029 5],两种修复系统刚度比较无显著性差异(P=0.339 0)。③上述结果显示,OmniSpan半月板修复系统修复半月板纵行撕裂的生物力学特性优于RapidLoc半月板修复系统。因此,作者推荐在进行半月板撕裂全内缝合时,采用OmniSpan半月板修复系统代替RapidLoc半月板修复系统以获得更好的临床治疗效果。

https://orcid.org/0000-0002-3515-139x (张强) 

中国组织工程研究杂志出版内容重点:人工关节;骨植入物;脊柱;骨折;内固定;数字化骨科;组织工程

关键词: 半月板, 损伤, 修复, RapidLoc半月板修复系统, OmniSpan半月板修复系统, 生物力学, 循环加载实验, 极限载荷实验

Abstract: BACKGROUND: Meniscus tears are commonly encountered in clinical practice. Many meniscus repair devices have been designed and compared in biomechanical experiment and clinical practice, but to our knowledge, the OmniSpan device has not been compared with the RapidLoc device in biomechanical configurations.  
OBJECTIVE: To compare the biomechanical characteristics of the OmniSpan device with the RapidLoc device in meniscus repair.
METHODS:  Twenty fresh porcine menisci were randomly assigned to the RapidLoc device group (n=10) and the OmniSpan device group (n= 10). Longitudinal vertical tear was created in the menisci and was subjected to repair according to its grouping. RapidLoc device adopted single point suture according to the operation guideline with a total of two stitches. OmniSpan device adopted cross suture with a total of two stitches. Once repaired, the specimen was subjected to cyclic loading with the tensile force between 5 N and 20 N at a rate of 30 mm/min for 500 cycles. Displacement was recorded at a load of 5 N. Loading to failure was performed at a rate of 30 mm/min, and maximum failure load and stiffness were recorded and evaluated after the experiment.  
RESULTS AND CONCLUSION: (1) In cyclic loading experiment, the average displacement was (1.47±0.09) mm and (1.63±0.08) mm for the OmniSpan and RapidLoc devices at a load of 5 N after cycles of 500, respectively. This difference was significant (P=0.000 8). (2) The OmniSpan device repairs exhibited higher maximum failure load compared with the RapidLoc device repairs [(257±52) N vs. (210±35) N, P=0.029 5]. There was no significant difference between two groups with respect to stiffness (P=0.339 0). (3) The results of this study indicate that when addressing a longitudinal meniscus tear, the OmniSpan device shows better biomechanical properties than the RapidLoc device. Surgeons may use the OmniSpan instead of the RapidLoc as all-inside meniscus repair devices for their patients.

Key words: meniscus, tear, repair, RapidLoc device, OmniSpan device, biomechanics, cyclic loading, loading to failure

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