Title
Do K-wires made from shape memory alloys increase pull-out forces? A preliminary experimental cadaver study in bovine bone.
Abstract
After osteosynthesis of the proximal humerus by Kirschner wires (K-wire), loosening and secondary loss can occur. This study tested primary fixation of wires made from a shape memory alloy (SMA) Nitinol (NiTi), compared to conventional steel K-wires by pull-out tests. Blocks of cancellous bone were tested with three wire types: NiTi-K-wire with split apex geometry and conventional steel K-wires with and without threads. We found that NiTi-wires can be pulled out of bone more easily than steel wires (P=0.05), even though the former had rougher surfaces. The application of NiTi-wires through bone produced no better stability in comparison to normal steel K-wires, because of triggering the memory effect. Further studies are required to determine if NiTi wires of another appropriate design, surface and localization are superior to conventional wires in the context of this application.
Year
DOI
Venue
2007
10.1007/s11517-007-0193-y
Med. Biol. Engineering and Computing
Keywords
Field
DocType
fracture fixationkirschner wires � shape memory alloyosteosynthesis,shape memory,memory effect,shape memory alloy
SMA*,Cadaver,Composite material,Thread (computing),Electronic engineering,Shape-memory alloy,Osteosynthesis,Fixation (histology),Cancellous bone,Mathematics,Nickel titanium,Structural engineering
Journal
Volume
Issue
ISSN
45
6
0140-0118
Citations 
PageRank 
References 
0
0.34
0
Authors
5
Name
Order
Citations
PageRank
U. Wiebking13120.71
Thomas Gösling2556.52
W Monschizada300.34
T Rau401.01
Christian Krettek5387.93