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contributor authorYamakawa, Satoshi
contributor authorFu, Freddie H.
contributor authorMusahl, Volker
contributor authorDebski, Richard E.
date accessioned2024-12-24T19:17:51Z
date available2024-12-24T19:17:51Z
date copyright8/20/2024 12:00:00 AM
date issued2024
identifier issn0148-0731
identifier otherbio_146_10_104501.pdf
identifier urihttp://yetl.yabesh.ir/yetl1/handle/yetl/4303682
description abstractA bone bruise is generated by a bony collision that could occur when the anterior cruciate ligament (ACL) is injured, and its pattern reflects the injury mechanism and skeletal maturity. Thus, the bone bruise pattern is useful to predict a subject-specific injury mechanism, although the sensitivity and/or effect of the material property and the knee position at injury is still unclear. The objective of the present study was to determine the effect of the material property and knee position on the bone bruise pattern in skeletally mature and immature subjects using finite element analysis. Finite element models were created from a magnetic resonance (MR) image in the sagittal plane of a skeletally mature (25 y. o.) and immature (9 y. o.) male subject. The femur and tibia were collided at 2 m/s to simulate the impact trauma and determine the maximum principal stress. The analysis was performed at 15, 30, and 45 deg of knee flexion, and neutral, 10 mm anterior and posterior translated position at each knee flexion angle. Although high stress was distributed toward the metaphysis area in the mature model, the stress did not cross the growth plate in the immature model. The size of the stress area was larger in the mature model than those in the immature model. The location of the stress area changed depending on the joint position. Young's modulus of cartilage and trabecular bone also affected the location of the stress area. The Young's modulus for the cartilage affected peak stress during impact, while the size of the stress area had almost no change. These results indicate that the bone bruise pattern is strongly associated with subject-specific parameters. In addition, the bone bruise pattern was affected not only by knee position but also by tissue qualities. In conclusion, although the bone bruise distribution was generally called footprint of the injury, the combined evaluation of the quality of the structure and the bone bruise distribution is necessary for properly diagnosing tissue injury based on the MR imaging.
publisherThe American Society of Mechanical Engineers (ASME)
titleEffect of the Material Properties and Knee Position to the Bone Bruise Pattern in Skeletally Mature and Immature Subjects
typeJournal Paper
journal volume146
journal issue10
journal titleJournal of Biomechanical Engineering
identifier doi10.1115/1.4066006
journal fristpage104501-1
journal lastpage104501-7
page7
treeJournal of Biomechanical Engineering:;2024:;volume( 146 ):;issue: 010
contenttypeFulltext


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