Posterolateral plate fixation with Talarlock® is more stable than screw fixation in ankle arthrodesis in a biomechanical cadaver study

2018 ◽  
Vol 24 (3) ◽  
pp. 208-212 ◽  
Author(s):  
N. Gutteck ◽  
H. Martin ◽  
T. Hanke ◽  
J.B. Matthies ◽  
A. Heilmann ◽  
...  
Keyword(s):  
Screw Fixation ◽  
Plate Fixation ◽  
Ankle Arthrodesis ◽  
Cadaver Study

Biomechanical Evaluation of Calcaneocuboid Distraction Arthrodesis: A Cadaver Study of Two Different Fixation Methods

2000 ◽  
Vol 21 (10) ◽  
pp. 845-848 ◽  
Author(s):  
Hervey L. Kimball ◽  
Michael S. Aronow ◽  
Raymond J. Sullivan ◽  
Danyel J. Tarinelli ◽  
Michael D. Nowak
Keyword(s):  
Screw Fixation ◽  
Plate Fixation ◽  
Cadaver Study ◽  
Posterior Tibial Tendon ◽  
Posterior Tibial Tendon Dysfunction ◽  
Posterior Tibial ◽  
Plantar Aspect ◽  
Load To Failure ◽  
Biomechanical Evaluation ◽  
Joint Separation

Calcaneocuboid distraction arthrodesis can be used to treat stage 2 posterior tibial tendon dysfunction. Nonunion, graft resorption, and implant failure have been reported after this procedure. This study compared two of the most commonly used methods for fixation of calcaneocuboid distraction arthrodesis. Twelve pairs of cadaver feet underwent simulated calcaneocuboid distraction arthrodesis. One specimen in each pair was fixed with two crossed 3.5 mm cortical lag screws. The contralateral specimen was fixed with a cervical H-plate. The calcaneus was fixed and a load was applied to the plantar aspect of the cuboid at a rate of 5mm/minute until joint separation of 3mm or fracture occurred. The average applied load to failure at 1.0 mm of joint separation was 30.5 +/−11.6 N for the crossed screws and 77.7 +/− 36.4 N for the cervical H-plate (p = 0.001). The average stiffness at 1.0 mm of joint separation was 27.5 +/− 10.9 N/mm for the crossed screws and 43 +/− 21.2 N/mm for the cervical H-plate (p = 0.036). The higher stiffness and load to failure may account for the decreased nonunion rate noted anecdotally by some surgeons with H-plate fixation over crossed screw fixation for calcaneocuboid distraction arthrodesis.

A Biomechanical Evaluation of Three Forms of Internal Fixation Used in Ankle Arthrodesis

1994 ◽  
Vol 15 (6) ◽  
pp. 297-300 ◽  
Author(s):  
Michael P. Dohm ◽  
James B. Benjamin ◽  
Jeffrey Harrison ◽  
John A. Szivek
Keyword(s):  
Internal Fixation ◽  
Plate Fixation ◽  
Ankle Arthrodesis ◽  
Biomechanical Study ◽  
The Other ◽  
Fixation Failure ◽  
Plate Group ◽  
Biomechanical Evaluation ◽  
The Stability ◽  
Fibular Strut

A biomechanical study was undertaken to evaluate the relative stability of three types of internal fixation used for ankle arthrodesis. Crossed screw fixation, RAF fibular strut fixation, and T-plate fixation were tested in 30 cadaver ankles using an MTS machine. T-plate fixation consistantly provided the stiffest construct when compared with the other types of fixation. Failure occurred by distraction of bony surfaces, posterior to the plane of fixation, in the crossed screw and RAF groups. In contrast, failure in the T-plate group occurred through compression of bone anterior to the midcoronal plane of the tibia. Although the stability of fixation is only one factor in determining the success or failure of ankle arthrodesis, the results of this study would support T-plate fixation over the other forms tested.

Intramedullary screw fixation for metacarpal shaft fractures: a biomechanical human cadaver study

2020 ◽  
Vol 45 (6) ◽  
pp. 595-600
Author(s):  
Raffael Labèr ◽  
David Jann ◽  
Pascal Behm ◽  
Stephen J. Ferguson ◽  
Florian S. Frueh ◽  
...  
Keyword(s):  
Plate Fixation ◽  
Cadaver Study ◽  
Human Cadaver ◽  
Active Motion ◽  
Shaft Fractures ◽  
Metacarpal Shaft ◽  
Lower Load ◽  
Strength And Stiffness ◽  
Increasing Cyclic Loading ◽  
Intramedullary Screw

Intramedullary cannulated compression screws have been introduced for the fixation of unstable metacarpal fractures. In the present study, this technique was compared with dorsal compression plating to evaluate its biomechanical performance in stabilizing metacarpal shaft fractures. In a first set of experiments, the biomechanical characteristics of the screws were analysed in an artificial bone model. In subsequent experiments, midshaft osteotomies were performed in human cadaver metacarpals, followed by plating or intramedullary screw osteosynthesis. The metacarpals were tested to failure in cantilever bending, following a stepwise increasing cyclic loading protocol. We found a significantly lower load at failure and a significantly lower number of cycles to failure in the intramedullary screw group, but both methods offered sufficient stability under these loads. With reference to published loads on the metacarpals during use of the hand, we conclude that intramedullary osteosynthesis yields sufficient strength and stiffness for early active motion. A difference in its fixation stability is noted compared with plate fixation, which may not be clinically relevant.

scholarly journals Supplementary medial locking plate fixation of Ludloff osteotomy versus sole lag screw fixation: A biomechanical evaluation

2017 ◽  
Vol 47 ◽  
pp. 66-72
Author(s):  
Panagiotis E. Chatzistergos ◽  
George C. Karaoglanis ◽  
Stavros K. Kourkoulis ◽  
Minos Tyllianakis ◽  
Emmanouil D. Stamatis
Keyword(s):  
Locking Plate ◽  
Screw Fixation ◽  
Plate Fixation ◽  
Locking Plate Fixation ◽  
Lag Screw ◽  
Biomechanical Evaluation

Risk of Sural Nerve Injury with Intramedullary Screw Fixation of Fifth Metatarsal Fractures: A Cadaver Study

1999 ◽  
Vol 20 (3) ◽  
pp. 182-184 ◽  
Author(s):  
Brian G. Donley ◽  
Michael J. McCollum ◽  
G. Andrew Murphy ◽  
E. Greer Richardson
Keyword(s):  
Nerve Injury ◽  
Sural Nerve ◽  
Screw Fixation ◽  
Cadaver Study ◽  
Metatarsal Fractures ◽  
Intramedullary Screw
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