New method of studying joint kinematics from three-dimensional reconstructions of MRI data

Hirsch, Bruce Elliot; Jk, Udupa; Samarasekera, Supun

doi:10.7547/87507315-86-1-4

Cited by 36 publications

(26 citation statements)

References 22 publications

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“…MRI as a method for studying joint kinematics was introduced by Hirsch et al (1996) with a tarsal (foot) joint as an example. The MRI images are segmented slice-by-slice to form the point cloud of the bone.…”

Section: Mrimentioning

confidence: 99%

See 1 more Smart Citation

Human hand modelling: kinematics, dynamics, applications

et al. 2012

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An overview of mathematical modelling of the human hand is given. We consider hand models from a specific background: rather than studying hands for surgical or similar goals, we target at providing a set of tools with which human grasping and manipulation capabilities can be studied, and hand functionality can be described. We do this by investigating the human hand at various levels: (1) at the level of kinematics, focussing on the movement of the bones of the hand, not taking corresponding forces into account; (2) at the musculotendon structure, i.e. by looking at the part of the hand generating the forces and thus inducing the motion; and (3) at the combination of the two, resulting in hand dynam- ics as well as the underlying neurocontrol. Our purpose is to not only provide the reader with an overview of current human hand modelling approaches but also to fill the gaps with recent results and data, thus allowing for an encompassing picture.

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Section: Mrimentioning

confidence: 99%

“…For registration, Hirsch et al (1996) match the principal axes of the point clouds, which are determined by a principal component analysis (PCA). This method seems to work fine in tarsal joints because of the particular shapes of the tarsal bones.…”

Section: Mrimentioning

confidence: 99%

Human hand modelling: kinematics, dynamics, applications

et al. 2012

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“…[15][16][17][18][19] These techniques offer three-dimensional (3D) quantification of in vivo morphology and positions of the AJC without using invasive markers. With these techniques however, the joint must be fixed in one position during CT or MR scanning, limiting the flexibility of the techniques to study various functional activities of the ankle.…”

Section: Introductionmentioning

confidence: 99%

Six DOF in vivo kinematics of the ankle joint complex: Application of a combined dual‐orthogonal fluoroscopic and magnetic resonance imaging technique

Wan

Rubash

et al. 2006

Journal Orthopaedic Research

148

128

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Accurate knowledge of in vivo ankle joint complex (AJC) biomechanics is critical for understanding AJC disease states and for improvement of surgical treatments. This study investigated 6 degrees-of-freedom (DOF) in vivo kinematics of the human AJC using a combined dual-orthogonal fluoroscopic and magnetic resonance imaging (MRI) technique. Five healthy ankles of living subjects were studied during three in vivo activities of the foot, including maximum plantarflexion and dorsiflexion, maximum supination and pronation, and three weight-bearing positions in simulated stance phases of walking. A three-dimensional (3D) computer model of the AJC (including tibia, fibula, talus, and calcaneus) was constructed using 3D MR images of the foot. The in vivo AJC position at each selected position of the foot was captured using two orthogonally positioned fluoroscopes. In vivo AJC motion could then be reproduced by coupling the orthogonal images with the 3D AJC model in a virtual dual-orthogonal fluoroscopic system. From maximum dorsiflexion to plantarflexion, the arc of motion of the talocrural joint (47.5 AE 2.28) was significantly larger than that of the subtalar joint (3.1 AE 6.88). Both joints showed similar degrees of internalexternal and inversion-eversion rotation. From maximum supination to pronation, all rotations and translations of the subtalar joint were significantly larger than those of the talocrural joint. From heel strike to midstance, the plantarflexion contribution from the talocrural joint (9.1 AE 5.38) was significantly larger than that of the subtalar joint (À0.9 AE 1.28). From midstance to toe off, internal rotation and inversion of the subtalar joint (12.3 AE 8.38 and À10.7 AE 3.88, respectively) were significantly larger than those of the talocrural joint (À1.6 AE 5.98 and À1.7 AE 2.78). Strong kinematic coupling between the talocrural and subtalar joints was observed during in vivo AJC activities. The contribution of the talocrural joint to active dorsi-plantarflexion was higher than that of the subtalar joint, whereas the contribution of the subtalar joint to active supination-pronation was higher than that of the talocrural joint. In addition, the talocrural joint demonstrated larger motion during the early part of stance phase while the subtalar joint contributes more motion during the later part of stance phase. The results add quantitative data to an in vivo database of normals that can be used in clinical diagnosis, treatment, and evaluation of the AJC after injuries. ß

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“…To overcome this limitation, this study recorded MPD from MR images reconstructed into 3-D virtual bone models. 34 The method is commonly used in motion analysis laboratories, 37,38 and its growing use in clinic-based studies can be traced to advancements in computer technology and commercially available software. The chief drawback remains the cost of 3-D imaging, but perhaps as more sophisticated data reduction methods are demonstrated reliable, such as generating 3-D finite element bone models from 2-D radiographs, 39 clinicians will be able to accurately quantify the morphological traits (size and shape) of the foot bones with radiographic evaluations.…”

Section: Discussionmentioning

confidence: 99%

“…19 Critical to the measurement of MPD, the first metatarsal, second metatarsal, and navicular were each embedded with a principal axis coordinate system. 34 The orthogonal coordinate systems defined the spatial orientation of the bone models, 9,29,31 such that the longitudinal axis ( Fig. 1) of the coordinate system located the distal most point of each bone.…”

Section: Methodsmentioning

confidence: 99%

An Imaged-Based Three-Dimensional Study of First Metatarsal Protrusion Distance in Women with and Without Hallux Valgus

Rodriguez

Pioske

Glasoe

2017

Journal of the American Podiatric Medical Association

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Background: First metatarsal protrusion distance (MPD) has been commonly studied as a characteristic of hallux valgus deformity. To date, the majority of investigations have used radiographic methods, with most reporting first metatarsal (ray) protrusion to be associated with deformity. As an alternative, this study used a three-dimensional (3-D) image acquisition and data analysis method to quantify MPD.

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New method of studying joint kinematics from three-dimensional reconstructions of MRI data

Cited by 36 publications

References 22 publications

Human hand modelling: kinematics, dynamics, applications

Human hand modelling: kinematics, dynamics, applications

Six DOF in vivo kinematics of the ankle joint complex: Application of a combined dual‐orthogonal fluoroscopic and magnetic resonance imaging technique

An Imaged-Based Three-Dimensional Study of First Metatarsal Protrusion Distance in Women with and Without Hallux Valgus

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