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Showing 1 to 20 of 20 for “"Metacarpophalangeal"”.
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A new metacarpophalangeal joint replacement arthroplasty
The metacarpophalangeal joint is vital for hand function. It is frequently affected by rheumatoid arthritis or osteoarthritis and in some cases the diseased joint is replaced with an implant. The past and current metacarpophalangeal joint replacements can be divided into three main categories: …
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Correlation of the Epiphyseal Closure and Ossification of the Ulnar Sesamoid Bone of the Metacarpophalangeal Joint of the Thumb
… of ossification of the ulnar sesamoid of the metacarpophalangeal joint of the thumb.</p> <p>The time for these events was studied in twenty-three males and fourteen females for which appropriate hand radiographs were available. Radiographs were made every three months and epiphyseal closure …
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The Effect of Two Maintenance Procedures on an Equine Arena Surface in Relation to Motion of the Hoof and Metacarpophalangeal Joint
… of motion (ROM) and displacement as well as metacarpophalangeal joint (MCPJ) extension and third metacarpal (MCIII) inclination were analysed using ANOVA. Surface hardness and traction were also measured. Speed was monitored using a marker on the sternum. No difference was found between …
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Perceptual and comparative analyses of a passive, linear, multiple degree-of-freedom skin stretch device for proprioceptive substitution
… and that are each attached by a wire to the metacarpophalangeal joint of one prosthetic finger. When a finger rotates about its metacarpophalangeal joint, the attached wire pulls the corresponding contact pad, which stretches the skin to an extent proportional to the angle of rotation. The …
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The effect of an abrupt change in functional surface properties on equine kinematics and neuromuscular activity
… 7.82, P =0.007 significantly increased and peak metacarpophalangeal extension significantly F (1, 93) = 7.85, P =0.006 reduced as the horses stepped onto the firm surface. Awareness of the abrupt change significantly increased stance duration F (1, 99) = 14.92, P <0.0001, duty factor F (1, 61) = …
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Osteochondral properties and relationships in the synovial joint
… articular cartilage surfaces from the equine metacarpophalangeal joint. The error involved in this process, including the image acquisition system, data analysis, and induced friction, was on the order of 7600 μstrain (0.76%). The present study demonstrated that superficial cartilage strains …
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Finger joint impedance control applications to investigate spasticity
… implemented to investigate the impedances at the metacarpophalangeal (MCP) joint of the index finger. The model was fit to approximately 25 milliseconds of force and displacement data to determine the mechanical impedances at the finger tip. Ranges of damping and stiffness were optimized over a …
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The biomechanical analysis of the hand in rheumatoid arthritis patients with MCP arthroplasty
… used to determine range of motion (ROM) of the metacarpophalangeal (MCP) joints in patients with rheumatoid arthritis, both without and with arthroplasty, to determine how the procedure affects motion of the joint. A 12 camera motion capture system was used to capture hand kinematic data. …
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Effects of beta-hydroxy beta-methylbutyrate (HMB) supplementation on gluteus medius muscle fiber composition and muscle performance in adult Thoroughbred horses exercising to fatigue on a high-speed treadmill
… surface electromyograms, and fore- and hindlimb metacarpophalangeal joint angles were captured for the duration of the SET. Results demonstrate that HMB supplementation increased (P < 0.05) the percentage of type IIA muscle fibers in the GM with a corresponding decrease (P < 0.05) in type IIX …
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Cutaneous innervation of the hand
… from the distal half of the forearm to the metacarpophalangeal joints. Nerves under investigation were identified, dissected, and traced. Sketches, photographs, and measurements to predefined landmarks including the wrist crease (WC), bistyloid line (BSL) and the third metacarpophalangeal …
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Adaptive, Anthropomorphic Robot Hands for Grasping and In-Hand Manipulation
… and adduction/abduction, on the finger's metacarpophalangeal joint, by using two actuators. Moment arm pulleys are employed to drive the tendon laterally, such that an amplification on the abduction motion occurs, while also maintaining the flexion motion. Particular emphasis has been …
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Estimulación de la síntesis de colágeno en cultivos celulares. Posible tratamiento de enfermedades degenerativas mediante la dieta
… as well as chondrocytes of cartilage of bovine metacarpophalangeal joints to see the effect of the different amino acids on cartilage joint collagen synthesis. Colorimetric, immunofluorescence and ELISAs techniques were used to quantify the synthesis of collagen. The enrichment of the culture …
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Analysis of dynamic contrast enhanced MRI datasets
… and blood vessels from data volumes of the metacarpophalangeal joints are introduced. Performance of the segmentation algorithms is evaluated with both state-of-the-art and novel techniques developed as a part of this thesis. We have utilised and enhanced a supervised approach and developed …
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Measurement of physiological variables by dynamic Gd-DTPA enhanced MRI
… In a randomised controlled study of early RA in metacarpophalangeal joints, a significant reduction in the QDEMRI variable which reflects fractional volume of the extravascular extracellular space was found three months after the start of therapy in 20 patients treated with methotrexate and …
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Biomechanical models of the finger in the sagittal plane
… consist of flexion and extension about the metacarpophalangeal (MCP) and proximal interphalangeal (PIP) joints. The purpose of this study was to develop a biomedical finger model and to validate it by comparing finger strength and muscular forces in static exertions, which predicated from …
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Evaluation of allogeneic bone marrow-derived mesenchymal stem cells for use in equine joints: in vitro to preclinical evaluation
… into clinically normal, contralateral, metacarpophalangeal joints. No difference was detected in the clinical or cytological response of the normal equine joint to allogeneic versus autologous BMDMSCs. After establishing the response of the equine tibiotarsal joint to recombinant IL-1β …
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Biomechanische Untersuchungen am Fesselgelenk (Articulatio metacarpophalangea) des Pferdes
… of loading in the equine fetlock joint (metacarpophalangeal articulation). 45 specimens of 26 horses of different breeds and sizes, male and female were examined. Their age ranged from foal to 30 years. Using Computertomographic Osteoabsorptiometry (CT-OAM) and Chondrocrassometry (CT-CCM) …
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Longitudinal measures of lameness in an induced model of equine post-traumatic osteoarthritis
Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2027-08-01
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Funktionell-anatomische Untersuchungen an den Zehengelenken (Articulationes interphalangeae) der Schultergliedmaße des Pferdes
… of the reasons being that the trochlea of the metacarpophalangeal bone is about 20% smaller than the trochlea of the proximal interphalangeal bone. This means that the same weight has to be carried by a smaller area; thus increasing the relative load of the articular surface and resulting in a …
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Astronaut Extravehicular Activity : safety, injury & countermeasures; &, Orbital collisions & space debris : incidence, impact & international policy
… Center. Hand circumference and width of the metacarpophalangeal (MCP) joint were found to be significantly associated with injuries by the Kruskal-Wallis test. Experimental testing was conducted to characterize skin blood flow and contact pressure inside the glove. This was done as part of …