Cheung Jason Pui Yin, Fung Boris, Ip Wing Yuk
Department of Orthopaedics and Traumatology, University of Hong Kong Medical Centre, Queen Mary Hospital, Hong Kong.
Hand Surg. 2013;18(3):381-8. doi: 10.1142/S0218810413500433.
To identify the strongest peak load resistance among four mallet finger fracture fixation methods (Kirschner wire, pull-out wire, tension-band wiring and the JuggerKnot™ (Biomet) soft anchor fixation).
Fixation techniques were assigned among 24 specimens from six cadaveric human hands in a randomized block fashion. Peak load resistance was tested at 30°, 45° and 60° of flexion of the distal interphalangeal joint.
The mean peak load of tension-band wiring was 67.8 N at 60° of flexion which was most superior. The JuggerKnot™ fixation had mean peak loads of 13.35 N (30°), 22.51 N (45°) and 32.96 N (60°). No complications of implant failure or fragmentation of the dorsal fragment was noted.
Tension-band wiring was the strongest fixation method but was most prominent on the skin surface as seen in three specimens. The JuggerKnot™ soft anchor fixation had similar peak load resistance as k-wire fixation and pull-out wiring.
确定四种锤状指骨折固定方法（克氏针、抽出钢丝、张力带钢丝固定和JuggerKnot™（生物金属公司）软锚固定）中最强的抗峰值负荷能力。
以随机区组方式在来自六具尸体手部的24个标本上应用固定技术。在远侧指间关节屈曲30°、45°和60°时测试抗峰值负荷能力。
张力带钢丝固定在屈曲60°时的平均峰值负荷为67.8 N，最为优越。JuggerKnot™固定在30°时的平均峰值负荷为13.35 N，45°时为22.51 N，60°时为32.96 N。未观察到植入物失败或背侧碎片碎裂的并发症。
张力带钢丝固定是最强的固定方法，但如在三个标本中所见，在皮肤表面最为突出。JuggerKnot™软锚固定与克氏针固定和抽出钢丝固定具有相似的抗峰值负荷能力。
