Journal: Animals : an Open Access Journal from MDPI

Article Title: Multibody Computer Model of the Entire Equine Forelimb Simulates Forces Causing Catastrophic Fractures of the Carpus during a Traditional Race

doi: 10.3390/ani12060737

Figure Lengend Snippet: Workflow used to build a simplified equine carpus model ( A – E ). The radial carpal bone (Cr) was fractured into two main pieces ( A ). The fractured volumes of the Cr were segmented ( B ). The Cr was virtually reconstructed by aligning the bone fragments and applying a wrapping function to reproduce the non-fractured bone surface ( C ). All the articulating bones of the carpal joint were segmented, and the respective three-dimensional (3D) solid geometries were created using software for 3D image processing. The 3D model was imported in multibody software and the gravity, and the weight forces were introduced ( D ). The collateral ligaments and the dorsal retinaculum were modelled ( E ). The short and long medial collateral ligaments (s-MCL and l-MCL), and the short and long lateral collateral ligaments (s-LCL and l-LCL) were introduced in the model. The short and long medial retinaculum (s-MR and l-MR) blended with the dorsal joint capsule and fascia were modelled. The intercarpal ligaments were modelled as bushing elements, acting between two bones proportionally to their relative linear and angular displacements and velocities.

Article Snippet: Thus, the obtained 3D geometries were imported into multibody software (v.2017, MD Adams, MSC Software Corporation GmbH, Munich, Germany), where a dynamic model was implemented.

Techniques: Software

Journal: Scientific Reports

Article Title: Kinematics and kinetics comparison of ultra-congruent versus medial-pivot designs for total knee arthroplasty by multibody analysis

doi: 10.1038/s41598-022-06909-x

Figure Lengend Snippet: Ligament bundles and muscles included into the multibody model. ( a ) Lateral view; ( b ) medial view; ( c ) frontal view. Red ellipsoids represent tendons of the M. quadriceps femoris and black upward arrows indicate the initial action lines of the Vastus medialis (Vmed), Vastus lateralis (Vlat), Vastus intermedius (Vint), and Rectus femoris (RF).

Article Snippet: The multibody model of a right lower limb was created in the multibody dynamic analysis program ADAMS (v. 2017, MSC Software Corporation, Santa Ana, CA) assembling standardized (medium size) bone geometries (Sawbones ® Europe AB, Malmoe, Sweden) equipped with a bicondylar total knee implant (K-MOD, Gruppo Bioimpianti, Peschiera Borromeo, Milan, Italy) including two alternative insert designs, that are, the UC and MP.

Techniques: Muscles

Journal: Scientific Reports

Article Title: Kinematics and kinetics comparison of ultra-congruent versus medial-pivot designs for total knee arthroplasty by multibody analysis

doi: 10.1038/s41598-022-06909-x

Figure Lengend Snippet: ( a ) Multibody model of the lower right limb with black arrows indicating the DOF assigned to the pelvis, hip, and ankle during the squat simulation; ( b ) lateral view of the model in extension and 90° flexion.

Article Snippet: The multibody model of a right lower limb was created in the multibody dynamic analysis program ADAMS (v. 2017, MSC Software Corporation, Santa Ana, CA) assembling standardized (medium size) bone geometries (Sawbones ® Europe AB, Malmoe, Sweden) equipped with a bicondylar total knee implant (K-MOD, Gruppo Bioimpianti, Peschiera Borromeo, Milan, Italy) including two alternative insert designs, that are, the UC and MP.

Techniques: