Biomechanical study of prophylactic internal fixation of the radial osteocutaneous donor site using the sheep tibia model

2007 ◽  
Vol 45 (6) ◽  
pp. 441-446 ◽  
Author(s):  
C.M.E. Avery ◽  
A. Best ◽  
P. Patterson ◽  
J. Rolton ◽  
A.R.S. Ponter
1994 ◽  
Vol 15 (6) ◽  
pp. 297-300 ◽  
Author(s):  
Michael P. Dohm ◽  
James B. Benjamin ◽  
Jeffrey Harrison ◽  
John A. Szivek

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.


2011 ◽  
Vol 11 (1) ◽  
pp. 30-35 ◽  
Author(s):  
Josue P. Gabriel ◽  
Aditya M. Muzumdar ◽  
Saif Khalil ◽  
Aditya Ingalhalikar

Orthopedics ◽  
2018 ◽  
Vol 41 (5) ◽  
pp. e643-e648
Author(s):  
Shuai Han ◽  
Dongdong Li ◽  
Peixun Zhang ◽  
Xiaofeng Yin ◽  
Yuhui Kou ◽  
...  

1986 ◽  
Vol 15 (2) ◽  
pp. 191-198 ◽  
Author(s):  
MARY C. WALTER ◽  
GAIL K. SMITH ◽  
CHARLES D. NEWTON

1995 ◽  
Vol 16 (7) ◽  
pp. 437-439 ◽  
Author(s):  
Mark P. Slovenkai ◽  
Daniel Linehan ◽  
Linda McGrady ◽  
Tae-Hong Lim ◽  
Gerald F. Harris ◽  
...  

Two methods of internal fixation of oblique lesser metatarsal osteotomies were compared biomechanically using fresh-frozen human cadaver bones. Osteotomies were made obliquely through the metatarsal shafts and fixed with either crossed Kirschner wires or a single AO screw using the lag technique. The specimens were then fixed at their proximal end and loaded to failure using an axial torsion material testing system (MTS, Minneapolis, MN). Load displacement curves were obtained and the stiffness of the constructs was determined. Single-screw fixation was found to be significantly stiffer than the crossed wire configuration ( P < .01). Single-screw fixation resulted in a stiffness of 211.2 ± 111.7 N/cm (mean ± SD), while stiffness of the crossed wire configuration averaged 56.9 ± 25.1 N/cm.


2011 ◽  
Vol 24 (01) ◽  
pp. 1-8 ◽  
Author(s):  
D. J. Griffon ◽  
G. R. Ragetly

SummaryAutograft is considered ideal for grafting procedures, providing osteoinductive growth factors, osteogenic cells, and an osteoconductive scaffold. Limitations, however, exist regarding donor site morbidity and graft availability. Although allograft provides an osteoconductive matrix with some osteoinductivity, its availability is limited. To achieve optimal bone graft properties, researchers are developing new materials with the goal of designing synthetics as close to autograft as possible while still facilitating their clinical use. However, the constant evolution of internal fixation stimulates the search for growth factors and cells which could stimulate bone healing.


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