Soft tissue artefact introduces large errors in the joint kinematics estimated from skin markers. Multi-body optimization (MBO) methods have been proposed to reduce these errors. However, the validation of MBO methods using spherical or hinge knee kinematic models showed their inefficiency to estimate accurately the in vivo kinematics [1, 2]. A knee kinematic model with deformable ligaments has been developed on the basis of a previously proposed parallel mechanism [3, 4]. The objective of the study is to validate the model-based kinematics obtained with a MBO method using this knee kinematic model, against the kinematics measured in-vivo by bone pins.
Validation of a multi-body optimization with a knee model including deformable ligaments
SANCISI, NICOLA;PARENTI CASTELLI, VINCENZO;
2014
Abstract
Soft tissue artefact introduces large errors in the joint kinematics estimated from skin markers. Multi-body optimization (MBO) methods have been proposed to reduce these errors. However, the validation of MBO methods using spherical or hinge knee kinematic models showed their inefficiency to estimate accurately the in vivo kinematics [1, 2]. A knee kinematic model with deformable ligaments has been developed on the basis of a previously proposed parallel mechanism [3, 4]. The objective of the study is to validate the model-based kinematics obtained with a MBO method using this knee kinematic model, against the kinematics measured in-vivo by bone pins.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
