Contact areas of the tibiotalar joint

Windisch, G.; Odehnal, Boris; Reimann, R; Anderhuber, Friedrich; Stachel, Hellmuth

doi:10.1002/jor.20429

Cited by 12 publications

(10 citation statements)

References 24 publications

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“…According to Equation 2, strained springs exhibited higher stiffness and therefore created regions where the pressure peaked, leaving the remaining springs a minor share of load to hold. Peaks of cartilage strain were also observed by Wan et al 1 . In DEM the talus was never displaced from its initial position, causing the springs to have more uniform thickness and a more even pressure distribution.…”

Section: Discussionsupporting

confidence: 75%

“…The determination of contact patterns of cartilage in the ankle can give an insight on the physiological behaviour of the joint 1 . Also, abnormalities in such patterns have been linked to the onset of osteoarthritis 2 , making therefore the investigation of the contact characteristics of the ankle of paramount importance.…”

Section: Introductionmentioning

confidence: 99%

“…The determination of contact patterns of cartilage in the ankle can give an insight on the physiological behaviour of the joint. 1 Also, abnormalities in such patterns have been linked to the onset of osteoarthritis, 2 making therefore the investigation of the contact characteristics of the ankle of paramount importance. Early attempts of measuring the contact features of the ankle date back to cadaveric studies in the 1970s 3 , 4 and since then many different methodologies have been developed for the ex vivo investigation of the contact characteristics of the joint.…”

Section: Introductionmentioning

confidence: 99%

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An extended discrete element method for the estimation of contact pressure at the ankle joint during stance phase

Benemerito

Modenese

Montefiori

et al. 2020

Proc Inst Mech Eng H

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Abnormalities in the ankle contact pressure are related to the onset of osteoarthritis. In vivo measurements are not possible with currently available techniques, so computational methods such as the finite element analysis (FEA) are often used instead. The discrete element method (DEM), a computationally efficient alternative to time-consuming FEA, has also been used to predict the joint contact pressure. It describes the articular cartilage as a bed of independent springs, assuming a linearly elastic behaviour and absence of relative motion between the bones. In this study, we present the extended DEM (EDEM) which is able to track the motion of talus over time. The method was used, with input data from a subject-specific musculoskeletal model, to predict the contact pressure in the ankle joint during gait. Results from EDEM were also compared with outputs from conventional DEM. Predicted values of contact area were larger in EDEM than they were in DEM (4.67 and 4.18 cm2, respectively). Peak values of contact pressure, attained at the toe-off, were 7.3 MPa for EDEM and 6.92 MPa for DEM. Values predicted from EDEM fell well within the ranges reported in the literature. Overall, the motion of the talus had more effect on the extension and shape of the pressure distribution than it had on the magnitude of the pressure. The results indicated that EDEM is a valid methodology for the prediction of ankle contact pressure during daily activities.

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Section: Discussionsupporting

confidence: 75%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

An extended discrete element method for the estimation of contact pressure at the ankle joint during stance phase

Benemerito

Modenese

Montefiori

et al. 2020

Proc Inst Mech Eng H

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show abstract

“…This may be due to the fact the facet joint is small and thus has most, if not all, of its articulating surfaces in contact with one another (congruent) throughout spine motion. This is unlike the situation with joints such as the hip and knee, in particular, in which the regions of weight‐bearing change through the gait cycle; some areas even being of low‐load and/or with reduced contact 19–24…”

Section: Discussionmentioning

confidence: 97%

Prevalence of facet joint degeneration in association with intervertebral joint degeneration in a sample of organ donors

Muehleman

Abe

et al. 2011

Journal Orthopaedic Research

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Among the most common causes of low back pain are strain on the muscles and ligaments associated with the spine, degeneration of the intervertebral discs (IVD), and osteoarthritis of the facet joints. It is not clear, however, how these latter two conditions are related to each other in terms of their development during a patient's lifetime. The facet joint is the sole synovial joint of the spine but because it is difficult to image its degenerative history as well as its relationship to other degenerative factors within the spine remain elusive. We compared the gross and histologic characteristics of the lumbar spine from a sample of organ donors to the integrity of their associated IVDs as assessed through magnetic resonance imaging. In our study sample, we found that facet joint degeneration was common, occurring as early as 15 years of age, while the IVD could still remain intact. Facet degeneration was more severe at the L4/5 level and progressed along with IVD degeneration with age. Because such early degenerative changes in the facet joint are somewhat surprising, degeneration of this joint should not be overlooked when assessing OA of the spine and causes of lower back pain.

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“…Some authors completed this analysis by proposing distance maps, which give the nearest region on the opposite bone (Anderst et al 2003;Windisch et al 2007). The distance maps are a simple but powerful tool to detect abnormal situations.…”

Section: Introductionmentioning

confidence: 99%

Detection of incoherent joint state due to inaccurate bone motion estimation

Schwartz

Leboeuf

Rémy-Néris

et al. 2013

Computer Methods in Biomechanics and Biomedical Engineering

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In biomechanical modeling and motion analysis, the use of personalized data such as bone geometry would provide more accurate and reliable results. However, there is still a limited number of tools used to measure the evolution of articular interactions. This paper proposes a coherence index to describe the articular status of contact surfaces during motion. The index relies on a robust estimation of the evolution of surfacic interactions between the joint surfaces. The index is first compared to distance maps on simulated motions. It is then used to compare two motion capture protocols (two different localizations of the markers for scapula tracking). The results show that the index detects progressive modifications in the joint and allows to distinguish the two protocols, in accordance with the literature. In the future, the index could, among other things, be used to compare / improve biomechanical models and motion analysis protocols.

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Contact areas of the tibiotalar joint

Cited by 12 publications

References 24 publications

An extended discrete element method for the estimation of contact pressure at the ankle joint during stance phase

An extended discrete element method for the estimation of contact pressure at the ankle joint during stance phase

Prevalence of facet joint degeneration in association with intervertebral joint degeneration in a sample of organ donors

Detection of incoherent joint state due to inaccurate bone motion estimation

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