... the functional deficit of the meniscus prevents it from performing its role of distributing forces. The objective of this study was to quantify joint kinematics in an intact joint, after a meniscus root tear, and after suture repair in cadaveric porcine knees, a frequently used in vivo model. We utilized...

... sesamoid bone and proximal phalange motion are currently sparse. To express joint kinematics and compare various clinical cohorts, future studies of first ray motion will necessitate robust coordinate frames that respect the variations in underlying anatomy while also aligning closely with the functional...

...Vikranth H. Nagaraja; Jeroen H. M. Bergmann; Michael S. Andersen; Mark S. Thompson Reliably and accurately estimating joint/segmental kinematics from optical motion capture data has remained challenging. Studies objectively characterizing human movement patterns have typically involved inverse...

... constituents and the severity of degeneration or injury. This also enables the preclinical estimation of spinal implant functionality and the success of operative procedures. The purpose of this review paper was to compile methodologies and results from various studies addressing spinal kinematics in pre...

...) characterize load transmission paths and kinematics of the subaxial cervical spine under shear loading, and (2) assess a contemporary finite element cervical spine model using this data. Subaxial functional spinal units (FSUs) were subjected to anterior, posterior, and lateral shear forces (200 N) applied...

... and ankle using a distractive force, allowing more natural sagittal and frontal plane ankle motion during gait. To evaluate its efficacy, this study compared ankle joint kinematics and plantar pressures among the DAO, standard double upright ankle-foot orthosis (DUAFO), and a nonorthosis control (CON...

... will influence the resulting kinematics and injury mechanisms. Therefore, the objective of this study was to document differences in the kinematics, kinetics, and injuries of ex vivo osteoligamentous human cervical spine and surrogate head complexes that were instrumented with simulated musculature relative...

...; published online July 10, 2013. Assoc. Editor: Richard Neptune. 17 07 2012 28 05 2013 05 06 2013 This study presents a methodology to determine thumb and index finger kinematics while utilizing a minimal set of markers. The motion capture of skin-surface markers presents inherent...

..., and articular congruence. The results of this study provide insight into the mechanisms of carpal tunnel adaptations in response to biomechanical alterations of the structural components. 01 05 2012 30 08 2012 25 09 2012 01 10 2012 carpal bones kinematics carpal arch width distal...

... of the amount of error in the kinematic and muscle Jacobians and found to remain superior to the performance of the squared muscle stress cost function throughout the range examined. References 1 Fraysse , F. , Dumas , R. , Cheze , L. , and Wang , X. , 2009 , “ Comparison of Global...

...Yun-Seok Kang; Kevin Moorhouse; John H. Bolte, IV The ability to measure six degrees of freedom (6 DOF) head kinematics in motor vehicle crash conditions is important for assessing head-neck loads as well as brain injuries. A method for obtaining accurate 6 DOF head kinematics in short duration...

... software packages such as OpenSim are used to minimize soft tissue artifact and estimate skeletal position; however, using different methods for analysis may produce differing kinematic results which could lead to differences in clinical interpretation such as a misclassification of normal or pathological...

..., and internal rotation to maximum dorsiflexion, eversion, and external rotation with relatively little user processing time. 09 09 2011 13 09 2011 14 09 2011 03 11 2011 03 11 2011 biomechanics biomedical MRI bone computerised tomography kinematics imaging segmentation...

... increased from 35 to 12 μm/pixel. In addition, data collection in 10 ms, rather than 50 ms, intervals was found to be preferable. Increasing heart rate and systolic duration showed little change in wall shear rate patterns, with wall shear rate magnitude scaling by approximately the kinematic viscosity...

... to promote fusion via a balance of stability, intra- and inter-level load sharing, and durability. The purpose of this study was to characterize the mechanical and biomechanical properties of a pedicle screw-based polyetheretherketone (PEEK) SRF system for the lumbar spine to compare its kinematic...

.... , and Garrett , W. E. , 2005 , “ Age and Gender Effects on Lower Extremity Kinematics of Youth Soccer Players in a Stop-Jump Task ,” Am. J. Sports. Med. , 33 ( 9 ), pp. 1356...

... 05 2011 bone gait analysis humanoid robots mobile robots motion measurement ACL kinematics gait robot stifle joint ligament knee The ligaments of the knee are complex structures that act to support and guide the motion of that joint. To accomplish this, these ligaments...

... and with a greater accuracy, and then a custom device typically allows. We created a six degree of freedom robotic cadaveric simulator and used it with a flatfoot model to quantify static bone positions at ten discrete instants over the stance phase of gait. In vivo tibial gait kinematics and ground reaction forces...

... image motion analysis kinematics medical image processing orthopaedics photogrammetry video signal processing An important assumption in this validation for video-based motion analysis as the measurement modality was the absence of skin motion artifact. It is our intention to use...

...Joonbum Bae; Kyoungchul Kong; Nancy Byl; Masayoshi Tomizuka Conventional gait rehabilitation treatment does not provide quantitative information on abnormal gait kinematics, and the match of the intervention strategy to the underlying clinical presentation may be limited by clinical expertise...