1990). Extensive functional adaptation of the navicular bone develops over time (Pool et al. Each group included nine adult, male canines who received unilateral arthroplasties for a period of six months. Summary This study examined the human mandible from the biomechanical point of view. Functional Adaptation of the Calcaneus in Historical Foot Binding J Bone Miner Res . Epub 2017 Jul 6.
For example, insufficient dietary protein during exercise can impair bone development and remodeling. To understand why different levels of exercise are beneficial or detrimental or why altered joint loading leads to changes in periarticular bone structure, underlying mechanisms must be understood by which bone interprets its mechanical environment.We use cookies to help provide and enhance our service and tailor content and ads. The animals with the low stiffness stems tended to lose less proximal cortical bone than the animals with high stiffness stems (4%±9 as opposed to 11%±14), but the difference was not statistically significant (We use cookies to help provide and enhance our service and tailor content and ads. Distal limb bones in the horse experience large cyclic loads, particularly during athletic activity (Nunamaker et al.
Early changes in the periarticular cancellous bone may play a role in the development of knee osteoarthritis. Bone adapts to altered physical stimuli, dietary changes, or injury.
2017 Sep;32(9):1915-1925. doi: 10.1002/jbmr.3185. Urban a1 J.O. Galante a1 Show more The purpose of the present study was to test the hypothesis that cortical bone loss, trabecular bone density and the amount of bone ingrowth vary as a function of stem stiffness in a canine cementless hip replacement model. Exercise helps maintain bone mass and counter osteoporosis, but exercise can also have detrimental effects-particularly for immature bone. The study was motivated by the problem of cortical bone atrophy in the proximal femur following cementless total hip replacement. Some negative exercise effects may also be linked to diet. By continuing you agree to the Copyright © 2020 Elsevier B.V. or its licensors or contributors. ScienceDirect ® is a registered trademark of Elsevier B.V.Functional adaptation and ingrowth of bone vary as a function of hip implant stiffnessCopyright © 1998 Elsevier Science Ltd. All rights reserved.ScienceDirect ® is a registered trademark of Elsevier B.V.
Zernicke: Functional adaptation of tendon and ligament entheses 36 gradually merged into one another, providing a gradual change in structural composition from ligament through to mineralized bone. 2008).
Introduction Loading is known to augment bone, 1 whereas disuse leads to bone loss. Introduction Bone is not a single material but a class of composites with varying proportions of mineral, organic material, and water, and consequently, a wide range of mechanical properties. Anterior cruciate ligament injury, for example, commonly leads to osteoarthritis. Doschak and R.F. The high stiffness stem caused ∼26% cortical bone stress-shielding and the low stiffness stem caused ∼7.5% stress-shielding, as assessed by beam theory.
M.R. Sumner a1 a2 T.M. 2 At a less dramatic scale, the parallel processes of bone augmentation and loss via remodeling take place throughout life and arguably drive functional adaptation of the skeleton—the process of simultaneous optimization of mechanical performance and reduction of the metabolic cost. Their
Although these factors influence skeletal health, the mechanisms remain unclear by which bone interprets its environment and responds to mechanical stimuli or injury. Evidence of trabecular bone functional adaptation The general functional role of trabecular bone is to provide strength and transfer external load away from the joint and toward the cortical bone (Currey, 2002; Barak et al.
Turner a1 R. Igloria a1 R.M. Bone remodeling is a potent example of tissue repair. Authors Natalie Reznikov 1 …
Chronically altered loading after a joint injury, however, can result in remodeling processes that can be detrimental to the joint. 1989). Dietary calcium and vitamins play important role in maintaining skeletal health, but high-fat diets are pervasive in western cultures and may contribute to the increasing prevalence of osteoporosis and incidence of related hip fractures. This chapter covers two subjects: mechanical events that occur in the human mandible during biting, and the basic behavior of the functional adaptation of bone.
Two stem stiffnesses were used and both designs were identical in external geometry and porous coating placement. By continuing you agree to the Copyright © 2020 Elsevier B.V. or its licensors or contributors. ScienceDirect ® is a registered trademark of Elsevier B.V.Functional adaptation of bone to exercise and injuryScienceDirect ® is a registered trademark of Elsevier B.V. Functional adaptation and ingrowth of bone vary as a function of hip implant stiffness Author links open overlay panel D.R. Bone adapts to altered physical stimuli, dietary changes, or injury.
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