Caldow Jonathon, Richardson Martin, Balakrishnan Subash, Sobol Tony, Lee Peter V S, Ackland David C
Department of Mechanical Engineering, University of Melbourne, Parkville, VIC, 3010, Australia.
Knee Surg Sports Traumatol Arthrosc. 2015 Feb;23(2):619-26. doi: 10.1007/s00167-014-3474-7. Epub 2014 Dec 14.
Re-establishment of the native footprint during rotator cuff repair is important for maximizing healing potential and fixation strength. The purpose of this study was to evaluate the contact area, contact pressure, stiffness and tensile strength of a new single-row cruciate suture repair and to compare these results to those of the Mason-Allen, double-row and transosseous repairs.
Infraspinatus tendons from fifty-six lamb shoulders were harvested and randomly assigned to cruciate suture, Mason-Allen, double-row and transosseous repair groups. Repairs were performed over pressure-sensitive film and footprint contact area and pressure measured. Repaired tendon specimens were also loaded in uniaxial tension, and ultimate tensile strength and stiffness measured.
The cruciate suture repair established significantly greater footprint contact area compared to the Mason-Allen repair (mean difference = 101 mm(2), p = 0.003). The ultimate tensile strength and stiffness of the double-row repair was significantly higher than that of all other repair groups (p < 0.05). The average footprint contact pressure of the cruciate suture repair (0.78 MPa) was similar to that of the Mason-Allen (0.74 MPa) and double-row repairs (0.79 MPa). The ultimate tensile strength of the cruciate suture repair was significantly greater than that of the transosseous repair (mean difference 62.4 N, p = 0.002).
The cruciate suture repair may improve strength and healing at the repaired tendon rotator cuff insertion relative to other single-row repair techniques. It may represent a faster, easier and more cost-effective alternative to double-row repairs.
在肩袖修复过程中重建天然足迹对于最大化愈合潜力和固定强度至关重要。本研究的目的是评估一种新型单排十字缝合法修复的接触面积、接触压力、刚度和拉伸强度，并将这些结果与梅森 - 艾伦缝合法、双排缝合法和经骨缝合法的结果进行比较。
从五十六只羊的肩部获取冈下肌腱，并随机分配到十字缝合法、梅森 - 艾伦缝合法、双排缝合法和经骨缝合法修复组。在压敏膜上进行修复，并测量足迹接触面积和压力。对修复后的肌腱标本也进行单轴拉伸加载，并测量极限拉伸强度和刚度。
与梅森 - 艾伦缝合法相比，十字缝合法修复建立的足迹接触面积显著更大（平均差异 = 101 mm²，p = 0.003）。双排缝合法的极限拉伸强度和刚度显著高于所有其他修复组（p < 0.05）。十字缝合法修复的平均足迹接触压力（0.78 MPa）与梅森 - 艾伦缝合法（0.74 MPa）和双排缝合法（0.79 MPa）相似。十字缝合法修复的极限拉伸强度显著大于经骨缝合法（平均差异62.4 N，p = 0.002）。
相对于其他单排修复技术，十字缝合法修复可能会提高修复后的肌腱肩袖插入处的强度和愈合能力。它可能是一种比双排缝合法更快、更简便且更具成本效益的替代方法。
