منابع مشابه
The envelope of passive knee joint motion.
The purpose of this study is to create an accurate experimental database for the passive (in vitro) freedom-of-motion characteristics of the human knee joint on a subject to subject basis, suitable for the verification and enhancement of mathematical knee-joint models. Knee-joint specimens in a six degree-of-freedom motion rig are moved through flexion under several combinations of external loa...
متن کاملHelical axes of passive knee joint motions.
The purpose of this study was to determine finite helical axes for passive knee joint motions in vitro and to evaluate the descriptive value of the finite helical axes for step-by-step flexion motions, with respect to consistency and reproducibility. An accurate Roentgenstereophotogrammetric system was used for motion measurements. Four knees were tested in a motion and loading rig with one and...
متن کاملHinged external fixation of the knee: intrinsic factors influencing passive joint motion.
OBJECTIVE To measure changes in knee kinematics after the application of articulated external fixators along a previously described knee flexion/extension axis and 16 specific "off-axis" fixator hinge configurations. DESIGN Cadaver, biomechanical study. SETTING Biomechanics laboratory. PARTICIPANTS Nine fresh cadaver knee specimens. INTERVENTION Each specimen was mounted on a custom-bui...
متن کاملEffects of Implant Alignment on Passive Knee Envelope
INTRODUCTION: A successful surgical outcome in total knee arthroplasty (TKA) depends on multiple factors, including proper rotational and translational alignment of the femoral and tibial components. Small variation in surgical alignment of an implant could potentially have a large impact on knee performance. Several authors have studied the effects of tibial and femoral component’s internal-ex...
متن کاملEffect of continuous passive motion on knee flexion range of motion after total knee arthroplasty.
OBJECTIVE To compare mean knee flexion in patients on continuous passive motion and those without it after total knee arthroplasty. METHODS The randomised controlled study was conducted at Aga Khan University Hospital, from July 2013 to June 2014, and comprised patients who underwent total knee arthroplasty. Patients were randomly assigned to either group, with Group A receiving standardised ...
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ژورنال
عنوان ژورنال: Journal of Biomechanics
سال: 1988
ISSN: 0021-9290
DOI: 10.1016/0021-9290(88)90280-1