Lemos Stephen E, Ebramzedeh Edward, Kvitne Ronald S
Lahey Clinic, Burlington, Massachusetts, USA.
Am J Sports Med. 2004 Mar;32(2):406-10. doi: 10.1177/0363546503261720.
Suture anchor and bone tunnel fixations are used for distal biceps tendon repairs and have not been compared.
Suture anchor fixation is equal or superior to bone tunnel fixation.
Randomized controlled in vitro study.
A new fixation technique was compared to traditional bone tunnel fixation of distal biceps tendon ruptures between randomly selected sides of nine matched-pair, fresh-frozen elbow specimens from cadaveric donors (mean age = 74.7 years). Bone densities were determined. The distal biceps tendon was attached to the actuator of a servohydraulic load frame and loaded to tensile failure at a constant rate of 4 mm/sec. Bone density, sex, age, side, tuberosity area, repair, failure type, repair stiffness, and yield strength were compared.
Superior yield strength of suture anchor fixation (263 N) compared to bone tunnel fixation (203 N) (P = 0.0233) were demonstrated. When suture anchor fixation failure (1 of 9) occurred, the matched pair also failed.
Suture anchor fixation offers an equal if not superior alternative to bone tunnel fixation for repair of the distal biceps tendon in the specimens tested.
Suture anchor fixation may be used for distal biceps tendon repairs.
缝线锚钉固定和骨隧道固定用于肱二头肌远端肌腱修复，但尚未进行比较。
缝线锚钉固定等同于或优于骨隧道固定。
随机对照体外研究。
将一种新的固定技术与传统的骨隧道固定技术相比较，用于修复来自尸体供体的9对匹配的新鲜冷冻肘部标本（平均年龄 = 74.7岁）随机选择一侧的肱二头肌远端肌腱断裂。测定骨密度。将肱二头肌远端肌腱连接到伺服液压加载框架的驱动器上，并以4毫米/秒的恒定速率加载至拉伸破坏。比较骨密度、性别、年龄、侧别、结节面积、修复方式、破坏类型、修复刚度和屈服强度。
显示缝线锚钉固定的屈服强度（263牛）优于骨隧道固定（203牛）（P = 0.0233）。当缝线锚钉固定失败（9例中的1例）时，匹配的对侧也失败。
在测试的标本中，对于肱二头肌远端肌腱修复，缝线锚钉固定提供了一种等同于或优于骨隧道固定的替代方法。
缝线锚钉固定可用于肱二头肌远端肌腱修复。
