Effect on Dynamic Mechanical Stability and Interfragmentary Movement of Angle-Stable Locking of Intramedullary Nails in Unstable Distal Tibia Fractures: A Biomechanical Study

2011 ◽  
Vol 70 (2) ◽  
pp. 358-365 ◽  
Author(s):  
Boyko Gueorguiev ◽  
Dirk Wähnert ◽  
Daniel Albrecht ◽  
Ben Ockert ◽  
Markus Windolf ◽  
...  
2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Julia Greenfield ◽  
Philipp Appelmann ◽  
Yoann Lafon ◽  
Karine Bruyère-Garnier ◽  
Pol Maria Rommens ◽  
...  

AbstractThe Distal Tibia Nail (DTN; Mizuho, Japan) has demonstrated higher biomechanical stiffness to locking plates in previous research for A3 distal tibia fractures. It is here investigated as a fixation option for supramalleolar corrective osteotomies (SMOT). Sixteen Sawbones tibiae were implanted with either a DTN (n = 8) or Medial Distal Tibia Plate (MDTP; n = 8) and a SMOT simulated. Two surgical outcome scenarios were envisaged: “best-case” representing an intact lateral cortex, and “worst-case” representing a fractured lateral cortex. All samples were subjected to compressive (350 N, 700 N) and torsional (± 4 Nm, ± 8 Nm) testing. Samples were evaluated using calculated construct stiffness from force–displacement data, interfragmentary movement and Von Mises’ strain distribution. The DTN demonstrated a greater compressive stiffness for the best-case surgical scenario, whereas the MDTP showed higher stiffness (p < 0.05) for the worst-case surgical scenario. In torsional testing, the DTN proved more resistant to torsion in the worst-case surgical setup (p < 0.05) for both ± 4 Nm and ± 8 Nm. The equivalent stiffness of the DTN against the MDTP supports the use of this implant for SMOT fixation and should be considered as a treatment option particularly in patients presenting vascularisation problems where the MDTP is an inappropriate choice.


2013 ◽  
Vol 14 (1) ◽  
Author(s):  
Dirk Wähnert ◽  
Yves Stolarczyk ◽  
Konrad L Hoffmeier ◽  
Michael J Raschke ◽  
Gunther O Hofmann ◽  
...  

2014 ◽  
Vol 38 (6) ◽  
pp. 1255-1260 ◽  
Author(s):  
Sebastian Kuhn ◽  
Philipp Appelmann ◽  
Philip Pairon ◽  
Dorothea Mehler ◽  
Frank Hartmann ◽  
...  

2014 ◽  
Vol 100 (8) ◽  
pp. 901-905 ◽  
Author(s):  
P. Boyer ◽  
P. Charles ◽  
P. Loriaut ◽  
J. Alkhaili ◽  
G. Mylle ◽  
...  

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