High, open wedge tibial osteotomy: Finite element analysis of five internal fixation modalities
نویسندگان
چکیده
منابع مشابه
Finite element analysis of Puddu and Tomofix plate fixation for open wedge high tibial osteotomy.
The use of open wedge high tibial osteotomy (HTO) to correct varus deformity of the knee is well established. However, the stability of the various implants used in this procedure has not been previously demonstrated. In this study, the two most common types of plates were analysed (1) the Puddu plates that use the dynamic compression plate (DCP) concept, and (2) the Tomofix plate that uses the...
متن کاملHow plate positioning impacts the biomechanics of the open wedge tibial osteotomy; a finite element analysis.
A numerical model of the medial open wedge tibial osteotomy based on the finite element method was developed. Two plate positions were tested numerically. In a configuration, (a), the plate was fixed in a medial position and (b) in an anteromedial position. The simulation took into account soft tissues preload, muscular tonus and maximal gait load.The maximal stresses observed in the four struc...
متن کاملComparison of theoretical fixation stability of three devices employed in medial opening wedge high tibial osteotomy: a finite element analysis
BACKGROUND Medial open wedge high tibial osteotomy is a well-established procedure for the treatment of unicompartmental osteoarthritis and symptomatic varus malalignment. We hypothesized that different fixation devices generate different fixation stability profiles for the various wedge sizes in a finite element (FE) analysis. METHODS Four types of fixation were compared: 1) first and 2) sec...
متن کاملOpen wedge high tibial osteotomy: cause of patellar descent
This was a retrospective review of the nine open wedge high tibial osteotomy (HTO) done in a regional hospital in Hong Kong from 2006 to 2008. The mechanical hip-knee-ankle angle improved from average 169.5°(164°-175°) to average 183.9° (179°-187°). Patellar descent was noted in all patients postoperatively, with Blackburne-Peel (BP) index significantly changing from 0.78 (0.64-0.93) to 0.59 (0...
متن کاملHigh tibial osteotomy: closed wedge versus combined wedge osteotomy
BACKGROUND High tibial osteotomy is a common procedure to treat symptomatic osteoarthritis of the medial compartment of the knee with varus alignment. This is achieved by overcorrecting the varus alignment to 2-6° of valgus. Various high tibial osteotomy techniques are currently used to this end. Common procedures are medial opening wedge and lateral closing wedge tibial osteotomies. The latera...
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ژورنال
عنوان ژورنال: Military Medical and Pharmaceutical Journal of Serbia
سال: 2011
ISSN: 0042-8450,2406-0720
DOI: 10.2298/vsp1110867s