A 3D lower limb musculoskeletal model for simultaneous estimation of musculo-tendon, joint contact, ligament and bone forces during gait

Moissenet, Florent; Chèze, Laurence; Dumas, Raphaël

doi:10.1016/j.jbiomech.2013.10.015

Cited by 66 publications

(80 citation statements)

References 70 publications

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“…A previously described [22,23] 3D lower limb musculoskeletal model consisting of 5 segments (i.e. pelvis, thigh, patella, shank and foot) and 5 degrees of freedom was used to perform this study.…”

Section: Musculoskeletal Modelmentioning

confidence: 99%

“…This geometry consisted of 129 muscular lines of action representing 38 muscles, divided into 55 units with up to 6 bundles. Both hip and knee contact forces estimated with this model were validated against instrumented prosthesis measurements [22,23]. The muscular redundancy problem was solved 3 at the musculo-tendon forces level, without the use of a muscle model.…”

Section: Musculoskeletal Modelmentioning

confidence: 99%

“…However, one part of these Lagrange multipliers, corresponding straightforwardly to the joint contact, ligament and bone forces (i.e. 1 λ ) [22] can be kept as unknowns using a partial parameter reduction [22]:…”

Section: Simultaneous Estimation Of Musculo-tendon Joint Contact LImentioning

confidence: 99%

“…Otherwise, when the optimisation weight is null, the associated force is only constrained to be positive. The optimisation weights used for this study are the same as in [22,23] and have been defined through an iterative process (i.e. 1 for musculotendon forces, 1e-6 for ligament, bone and patellofemoral joint forces, 1 for hip and ankle joint forces, 2 and 4 for medial and lateral tibiofemoral joint forces, respectively).…”

Section: Simultaneous Estimation Of Musculo-tendon Joint Contact LImentioning

confidence: 99%

“…For that, the pseudo-inverse method [7] was used on a 3D lower limb musculoskeletal model which particularity is to simultaneously estimate musculotendon forces and joint contact, ligament and bone (i.e. compression-traction of bony segments) forces [22,23]. Our aim was to provide a comprehensive investigation of how individual muscles contribute both to ground reaction and to joint contact, ligament and bone forces during normal gait.…”

Section: Introductionmentioning

confidence: 99%

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Individual muscle contributions to ground reaction and to joint contact, ligament and bone forces during normal gait

2017

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Recent developments in musculoskeletal modelling have enabled numerous studies to explore how individual muscles contribute to progression, support and mechanical loading during gait. However, the literature still lacks data on the contributions of musculo-tendon forces to several structures, making it difficult to determine the primary contributors. The aim of the present study was thus to provide a comprehensive investigation of individual muscle contributions to ground reaction (i.e. 3D ground reaction force and moment), and to joint contact, ligament and bone (i.e. compression-traction of bony segments) forces during normal gait. We used a 3D lower limb musculoskeletal model coupled with a static optimisation method using a pseudo-inverse, which indeed yielded data on individual muscle contributions currently missing from the literature. We report the individual muscle contributions to 1) 3D ground reaction force and moment, 2) hip, tibiofemoral, patellofemoral, and ankle joint contact forces, 3) tibiofemoral and ankle ligament forces and 4) femur, patella and tibia bone forces. In line with the recent literature, the primary contributors are the vastii, gluteus medius, soleus, rectus femoris, gemellus, quadratus femoris, gluteus maximus and adductors. While the current observations are made on a generic model, the present method offers a comprehension tool that can shed light on the underlying mechanisms governing the musculoskeletal system.

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Section: Musculoskeletal Modelmentioning

confidence: 99%

Section: Musculoskeletal Modelmentioning

confidence: 99%

Section: Simultaneous Estimation Of Musculo-tendon Joint Contact LImentioning

confidence: 99%

Section: Simultaneous Estimation Of Musculo-tendon Joint Contact LImentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Individual muscle contributions to ground reaction and to joint contact, ligament and bone forces during normal gait

2017

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Malrotated tibial component increases medial collateral ligament tension in total knee arthroplasty

et al. 2014

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SUMMARY: Malrotation of the tibial component can lead to complications after total knee arthroplasty (TKA). Despite reports of internal rotation being associated with more severe pain or stiffness than external rotation, the biomechanical reasons remain largely unknown. We used a computer simulation model and evaluated traction forces in the lateral collateral ligament (LCL) and medial collateral ligament (MCL) with a malrotated tibial component during squatting. We also examined tibiofemoral and patellofemoral contact forces and stresses under similar conditions. A dynamic musculoskeletal knee model was simulated in three different constrained tibial geometries with a prototype component. The testing conditions were changed between 15˚external and 15˚internal rotation of the tibial component. With internal rotation of the tibial component, the MCL force increased progressively; the LCL force also increased, but only up to less than half of the MCL force values. A higher degree of constraint of the tibial component was associated with greater femoral rotational movement and higher MCL forces. The tibiofemoral and patellofemoral contact forces were not influenced by malrotation of the tibial component, but the contact stresses increased because of decreased contact area. This altered loading condition could cause patient complaints and polyethylene problems after TKA. Proper positioning of the components is critical for ensuring a good clinical outcome of total knee arthroplasty (TKA). Surgeons focus on rotational alignment because correct rotational alignment is related to better function, clinical score, and range of motion after TKA. Excessive malposition of the tibial component, especially internal rotation, can lead to complications such as a painful knee, 1,2 a stiff knee, 3 patellofemoral instability, 4-6 or excessive polyethylene wear in the tibial component.7 Accurate rotational placement of the tibial component is difficult to achieve freehand. Landmarks for rotational alignment are ambiguous compared with femoral rotational alignment, because the method of defining the tibial AP axis is variable. 8,9 Previous studies showed that internal rotational errors in the tibial component can be >20˚in conventional TKA.2,5 Even if a navigation system is used, the variation from the ideal rotational angle is larger for tibial than for femoral alignment. 10,11The etiology of knee joint pain or stiffness with a malrotated tibial component is unclear and may result from increased tension or pressure on soft tissue because of altered kinematics. Despite reports that internal rotation is associated with more severe pain or stiffness than external rotation, the biomechanical reasons remain largely unknown. We suppose that the symptoms associated with a malrotated tibial component could be affected by its surface geometry.We used a musculoskeletal computer model to analyze three different constrained geometries for the tibial polyethylene insert during simulated weightbearing deep knee flexion under quadriceps control. ...

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Higher knee contact forces might underlie increased osteoarthritis rates in high functioning amputees: A pilot study

Ding

Jarvis

Bennett

et al. 2020

Journal Orthopaedic Research

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High functioning military transtibial amputees (TTAs) with well-fitted state of the art prosthetics have gait that is indistinguishable from healthy individuals, yet they are more likely to develop knee osteoarthritis (OA) of their intact limbs. This contrasts with the information at the knees of the amputated limbs that have been shown to be at a significantly reduced risk of pain and OA. The hypothesis of this study is that biomechanics can explain the difference in knee OA risk. Eleven military unilateral TTAs and eleven matched healthy controls underwent gait analysis. Muscle forces and joint contact forces at the knee were quantified using musculoskeletal modeling, validated using electromyography measurements. Peak knee contact forces for the intact limbs on both the medial and lateral compartments were significantly greater than the healthy controls (P ≤ .006). Additionally, the intact limbs had greater peak semimembranosus (P = .001) and gastrocnemius (P ≤ .001) muscle forces compared to the controls. This study has for the first time provided robust evidence of increased force on the non-affected knees of high functioning TTAs that supports the mechanically based hypothesis to explain the documented higher risk of knee OA in this patient group. The results suggest several protentional strategies to mitigate knee OA of the intact limbs, which may include the improvements of the prosthetic foot control, socket design, and strengthening of the amputated muscles. K E Y W O R D S knee contact force, knee osteoarthritis, musculoskeletal modeling, unilateral transtibial amputee 1 | INTRODUCTION Recent conflicts in Afghanistan and Iraq have resulted in a large number of United Kingdom military traumatic amputees. Explosions, including those by improvised explosive devices and mines, are the leading causes of these traumatic amputations followed by small arms fire, which includes gunshot wounds and grenades. 1 In comparison to the civilian population, for whom the predominant mechanism of traumatic amputations is through road traffic accidents and work-based accidents, military traumatic amputees have specifically benefited from the high-quality care from the point of trauma on the battlefield to arrival back in the UK for intensive, continued

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A 3D lower limb musculoskeletal model for simultaneous estimation of musculo-tendon, joint contact, ligament and bone forces during gait

Cited by 66 publications

References 70 publications

Individual muscle contributions to ground reaction and to joint contact, ligament and bone forces during normal gait

Individual muscle contributions to ground reaction and to joint contact, ligament and bone forces during normal gait

Malrotated tibial component increases medial collateral ligament tension in total knee arthroplasty

Higher knee contact forces might underlie increased osteoarthritis rates in high functioning amputees: A pilot study

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