Abstract
Background
In the treatment of transverse olecranon fractures, complicated tension band wiring
(TBW) has high rates of re-operations. Besides, plate fixation (PF) and TBW both have
large surgical incisions and soft-tissue irritation. Therefore, the new cross-locking
intramedullary nail (CIN) with easy handling and minimally invasive features is significantly
advantageous. The goal of this study was to biomechanically compare CIN with TBW for
fixing transverse olecranon fracture.
Methods
The transverse olecranon fracture models were created with 15 fresh-frozen cadaveric
ulnae which were randomly divided into 3 groups: one group for TBW fixation, another
for CIN fixation with 1 conical locking screw (CIN-1), and the last for CIN fixation
with 3 conical locking screws (CIN-3). The stiffness, cyclic stability, and failure
strength of the fixed fracture models were compared after the corresponding experimental
tests.
Results
The failure strength of TBW, CIN-1 and CIN-3 were (313.38±27.68) N, (528.56±53.58)
N and (871.04±94.95) N. There was a significant difference between them. However,
as for dynamic stability and stiffness, CIN-3 was higher and TBW was lower, with no
significant differences between the groups.
Conclusion
The biomechanical properties of CIN were superior to those of TBW, and CIN was more
stable and solid for fixing transverse olecranon fracture, of which CIN-3 was the
strongest.
Keywords
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Article info
Publication history
Published online: July 07, 2022
Accepted:
July 3,
2022
Publication stage
In Press Journal Pre-ProofIdentification
Copyright
© 2022 Elsevier Ltd. All rights reserved.
