Biomechanical Study of the Fixation Plates For Opening Wedge High Tibial Osteotomy
The Journal of Korean Knee Society
;
: 181-186, 2015.
Artigo
em Inglês
| WPRIM
| ID: wpr-759180
ABSTRACT
PURPOSE:
The purpose of this study was to compare the mechanical stability of three types of plate systems for opening wedge high tibial osteotomy. MATERIALS ANDMETHODS:
Forty-eight fresh frozen porcine tibia specimens were assigned to three different fixation device groups Aescular group (16 specimens) was fixed with Aescular plates; Puddu group (16 specimens) with a Puddu plate, and TomoFix group (16 specimens) with a TomoFix plate. We compared axial displacements under compression loads from 200 to 2,000 N and maximal loads at failure among 8 specimens per group. We also compared displacements under cyclic load after 100 cycles at a compressive load of 2,000 N among 8 specimens per group.RESULTS:
In all three groups, displacement under compression load increased with the increase in the axial compressive load; however, no significant intergroup differences were observed in the mean values under tested loading conditions. The mean maximal loads at failure were not significantly different (6,055, 6,798, and 6,973 N in the Aescular, Puddu, and TomoFix groups, respectively; p=0.41). While the TomoFix group showed less extension and strain during the cyclic load test, the mean values showed no significant differences among groups.CONCLUSIONS:
All three plate systems were found to provide fixation stability suitable for bearing axial compression and cyclic loads while walking.
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Assunto principal:
Osteotomia
/
Tíbia
/
Caminhada
/
Joelho
Idioma:
Inglês
Revista:
The Journal of Korean Knee Society
Ano de publicação:
2015
Tipo de documento:
Artigo
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