Biomedical Engineering Reference
In-Depth Information
obtained using intracortical pins, by limiting their
comparison to the stance phase of gait. Sati
et al
. [SAT 96]
evaluated the harness developed by LIO (Research
Laboratory in Imagery and Orthopedics) in Montreal, and
found an average error of 0.4° in the varus-valgus and 2.3°
in the axial rotation with regard to fluoroscopic data during
flexion of the knee up to 65°. The reproducibility of this
harness during walking has since been improved [HAG 05,
LAB 08], and it is now used in clinical applications
[GAU 11].
Figure 4.2.
Harness developed by the LIO (Research
Laboratory in Imagery and Orthopedics, Montreal) and
marketed by the Emovi society under the name KneeKG™
Another approach, known as multicalibration, proposes
the development of
a posteriori
correction algorithms for the
trajectories of cutaneous markers, based on the errors in
the measurement of marker position with regard to the
