Rankin Christopher C, Lintner David M, Noble Philip C, Paravic Vibor, Greer Erin
Baylor Sports Medicine Institute, Barnhart Department of Orthopedic Surgery, Baylor College of Medicine, Houston, Texas 77030, USA.
Am J Sports Med. 2002 Jul-Aug;30(4):492-7. doi: 10.1177/03635465020300040801.
Various methods are available for repair of meniscal tears: a biodegradable meniscal implant without sutures (Biofix meniscus arrow), a suture anchor device (T-fix), and horizontal and vertical mattress sutures.
There is no difference in repair strength or mode of failure among the techniques compared.
Controlled laboratory study.
Reproducible tears were created in bovine menisci and repaired with each of the techniques. Residual displacement of the tear immediately after repair and the resistance to displacement under load applied perpendicular to the tear were measured and compared.
The residual displacement after repair was highest in the Biofix arrow group (0.70 mm) and lowest in the vertical mattress suture group (0.21 mm). The ultimate strength of repair was strongest for the vertical sutures (202 +/- 7 N) and lowest for the arrow and T-fix (95.9 +/- 8 N and 99.4 +/- 8 N, respectively). The force required to generate 2 mm of tear displacement was greatest for the vertical sutures (143 N) and least for the arrow (43.6 N).
Suture techniques were stronger at all levels of testing.
Knowledge of biomechanical characteristics aids the surgeon in choosing the appropriate technique for each situation.
半月板撕裂的修复方法有多种：一种无需缝合的可生物降解半月板植入物（Biofix半月板箭头）、一种缝合锚定装置（T-fix）以及水平和垂直褥式缝合。
相比之下，这些技术在修复强度或失效模式方面没有差异。
对照实验室研究。
在牛半月板上制造可重现的撕裂，并采用每种技术进行修复。测量并比较修复后撕裂处的残余位移以及垂直于撕裂施加负荷时的抗位移能力。
Biofix箭头组修复后的残余位移最高（0.70毫米），垂直褥式缝合组最低（0.21毫米）。垂直缝合的最终修复强度最强（202±7牛），箭头和T-fix组最低（分别为95.9±8牛和99.4±8牛）。产生2毫米撕裂位移所需的力，垂直缝合最大（143牛），箭头最小（43.6牛）。
在所有测试水平上，缝合技术都更强。
了解生物力学特性有助于外科医生针对每种情况选择合适的技术。
