Can a reduction approach predict reliable joint contact and musculo-tendon forces?

Dumas, Raphaël; Barre, Annick; Moissenet, Florent; Aïssaoui, Rachid

doi:10.1016/j.jbiomech.2019.109329

Cited by 8 publications

(6 citation statements)

References 28 publications

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“…23 Tendon forces have been calculated through in vitro studies, 24 as well as have been estimated through in vivo indirect calculations based on body position, joint reaction forces and inverse dynamic models. [25][26][27] Additionally, as underlined by a previous review, invasive evaluations using force transducers and optic fibre techniques have enabled the direct measurement of forces in tendons of the hand and the Achilles and patellar tendons. 23 Medical imaging techniques such as ultrasound or MRI have previously made it possible to directly measure strain during isometric contractions, 28 walking, 29 30 running 27 31 and hopping.…”

Section: Strengths and Limitations Of This Studymentioning

confidence: 99%

Modelling and in vivo evaluation of tendon forces and strain in dynamic rehabilitation exercises: a scoping review

2022

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ObjectivesAlthough exercise is considered the preferred approach for tendinopathies, the actual load that acts on the tendon in loading programmes is usually unknown. The objective of this study was to review the techniques that have been applied in vivo to estimate the forces and strain that act on the human tendon in dynamic exercises used during rehabilitation.DesignScoping review.Data sourcesEmbase, PubMed, Web of Science and Google Scholar were searched from database inception to February 2021.Eligibility criteriaCross-sectional studies available in English or Spanish language were included if they focused on evaluating the forces or strain of human tendons in vivo during dynamic exercises. Studies were excluded if they did not evaluate tendon forces or strain; if they evaluated running, walking, jumping, landing or no dynamic exercise at all; and if they were conference proceedings or book chapters.Data extraction and synthesisData extracted included year of publication, study setting, study population characteristics, technique used and exercises evaluated. The studies were grouped by the types of techniques and the tendon location.ResultsTwenty-one studies were included. Fourteen studies used an indirect methodology based on inverse dynamics, nine of them in the Achilles and five in the patellar tendon. Six studies implemented force transducers for measuring tendon forces in open carpal tunnel release surgery patients. One study applied an optic fibre technique to detect forces in the patellar tendon. Four studies measured strain using ultrasound-based techniques.ConclusionsThere is a predominant use of inverse dynamics, but force transducers, optic fibre and estimations from strain data are also used. Although these tools may be used to make general estimates of tendon forces and strains, the invasiveness of some methods and the loss of immediacy of others make it difficult to provide immediate feedback to the individuals.

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Section: Strengths and Limitations Of This Studymentioning

confidence: 99%

Modelling and in vivo evaluation of tendon forces and strain in dynamic rehabilitation exercises: a scoping review

2022

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“…Medial knee contact forces were then calculated by balancing internal and external moments of force about the lateral tibiofemoral contact point (Miller, Esterson & Shim, 2015). This approach produces estimates of knee contact forces and medial-lateral force distributions that compare reasonably well with measurements from instrumented joint replacements, with typical errors in the range of 0.3-0.9x bodyweight (BW) (Miller, Esterson & Shim, 2015;Dumas et al, 2019).…”

Section: Knee Load Modelingmentioning

confidence: 99%

Medial knee cartilage is unlikely to withstand a lifetime of running without positive adaptation: a theoretical biomechanical model of failure phenomena

Miller

Krupenevich

2020

PeerJ

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Runners on average do not have a high risk of developing knee osteoarthritis, even though running places very high loads on the knee joint. Here we used gait analysis, musculoskeletal modeling, and a discrete-element model of knee contact mechanics to estimate strains of the medial knee cartilage in walking and running in 22 young adults (age 23 ± 3 years). A phenomenological model of cartilage damage, repair, and adaptation in response to these strains then estimated the failure probability of the medial knee cartilage over an adult lifespan (age 23–83 years) for 6 km/day of walking vs. walking and running 3 km/day each. With no running, by age 55 the cumulative probability of medial knee cartilage failure averaged 36% without repair and 13% with repair, similar to reports on incidence of knee osteoarthritis in non-obese adults with no knee injuries, but the probability for running was very high without repair or adaptation (98%) and remained high after including repair (95%). Adaptation of the cartilage compressive modulus, cartilage thickness, and the tibiofemoral bone congruence in response to running (+1.15 standard deviations of their baseline values) was necessary for the failure probability of walking and running 3 km/day each to equal the failure probability of walking 6 km/day. The model results suggest two conclusions for further testing: (i) unlike previous findings on the load per unit distance, damage per unit distance on the medial knee cartilage is greater in running vs. walking, refuting the “cumulative load” hypothesis for long-term joint health; (ii) medial knee cartilage is unlikely to withstand a lifetime of mechanical loading from running without a natural adaptation process, supporting the “cartilage conditioning” hypothesis for long-term joint health.

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“…On one end of the spectrum, finite element models provide high-resolution estimates of tissuelevel stress and strain but at high computational cost (Kazemi et al, 2013;Shriram et al, 2019). Conversely, reductionist models (Morrison, 1968;Wismans et al, 1980;Yamaguchi and Zajac, 1989) rely on simplifying assumptions to lump or omit some tissues, but may still be of sufficient quality to reveal the net action of load-bearing structures of the knee (Dumas et al, 2019) and to estimate the unloading effect of a knee brace (Pollo et al, 2002;Budarick et al, 2020). Regardless of the modeling approach, validation is both crucial and challenging (Hicks et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

Biomechanical Study of a Tricompartmental Unloader Brace for Patellofemoral or Multicompartment Knee Osteoarthritis

McGibbon

Brandon

Bishop

et al. 2021

Front. Bioeng. Biotechnol.

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Objective: Off-loader knee braces have traditionally focused on redistributing loads away from either the medial or lateral tibiofemoral (TF) compartments. In this article, we study the potential of a novel “tricompartment unloader” (TCU) knee brace intended to simultaneously unload both the patellofemoral (PF) and TF joints during knee flexion. Three different models of the TCU brace are evaluated for their potential to unload the knee joint.Methods: A sagittal plane model of the knee was used to compute PF and TF contact forces, patellar and quadriceps tendon forces, and forces in the anterior and posterior cruciate ligaments during a deep knee bend (DKB) test using motion analysis data from eight participants. Forces were computed for the observed (no brace) and simulated braced conditions. A sensitivity and validity analysis was conducted to determine the valid output range for the model, and Statistical Parameter Mapping was used to quantify the effectual region of the different TCU brace models.Results: PF and TF joint force calculations were valid between ~0 and 100 degrees of flexion. All three simulated brace models significantly (p < 0.001) reduced predicted knee joint loads (by 30–50%) across all structures, at knee flexion angles >~30 degrees during DKB.Conclusions: The TCU brace is predicted to reduce PF and TF knee joint contact loads during weight-bearing activity requiring knee flexion angles between 30 and 100 degrees; this effect may be clinically beneficial for pain reduction or rehabilitation from common knee injuries or joint disorders. Future work is needed to assess the range of possible clinical and prophylactic benefits of the TCU brace.

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Can a reduction approach predict reliable joint contact and musculo-tendon forces?

Cited by 8 publications

References 28 publications

Modelling and in vivo evaluation of tendon forces and strain in dynamic rehabilitation exercises: a scoping review

Modelling and in vivo evaluation of tendon forces and strain in dynamic rehabilitation exercises: a scoping review

Medial knee cartilage is unlikely to withstand a lifetime of running without positive adaptation: a theoretical biomechanical model of failure phenomena

Biomechanical Study of a Tricompartmental Unloader Brace for Patellofemoral or Multicompartment Knee Osteoarthritis

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