The author compares this new plate with other type of fixation described by Weber that employed a semitubular plate based on tension band principle. The mecanical tests were perfomed in a universal test machine of the "Laboratório de Bioengenharia da Faculdade de Medicina de Ribeirão Preto, Campus Universitário, Universidade de São Paulo". A three-point-flexion test established was employed dislocation.The weak point in the semitubular plate model ocurred mainly where it was bent at is external hole, displaying hole enlargement at loads of less than 30 N.m. The author choosed the 3-points flexion test, which provides a qualitative indication of the material resistivity. The conclusion was that the new implant showed stability and resistance superior to the semitubular plate when submitted to flexion tests.
Knee; high tibial osteotomy; fixation
