Motion analysis in two dimensions of radial-ulnar deviation of type I versus type II lunates

Nakamura, Koji; Beppu, Masatoshi; Patterson, Rita M.; Hanson, Curtis A.; Hume, Paul J.; Viegas, Steven F.

doi:10.1053/jhsu.2000.9411

Cited by 85 publications

(63 citation statements)

References 16 publications

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“…The presence of a medial distal facet in type II lunate is associated with different movement patterns and ligamentous attachment in the wrist (Galley et al). More important, it is associated with cartilage erosion and arthrosis at the HLJ which causes ulnar-sided wrist pain (Nakamura et al, 2000;Haase et al). In a study based on 2D motion analysis of the lunate, Nakamura et al (2000) suggested that differences in motion, joint loading and injury patterns may contribute to this higher incidence of arthrosis in wrists with Type II lunate.…”

Section: Discussionmentioning

confidence: 99%

“…More important, it is associated with cartilage erosion and arthrosis at the HLJ which causes ulnar-sided wrist pain (Nakamura et al, 2000;Haase et al). In a study based on 2D motion analysis of the lunate, Nakamura et al (2000) suggested that differences in motion, joint loading and injury patterns may contribute to this higher incidence of arthrosis in wrists with Type II lunate. Subsequently, it was also noted that there was a higher incidence of arthrosis at the HLJ if the medial facet was 3 mm or more (Nakamura et al, 2001).…”

Section: Discussionmentioning

confidence: 99%

“…Type II lunate is more prone to degenerative changes in the hamato-lunate joint (HLJ) that may cause ulnar-sided wrist pain (Burgess, 1990;Viegas et al, 1993;Nakamura et al, 2000;Galley et al, 2007;Haase et al, 2007). In Type II lunates the width of the accessory facet ranges from 1-12 mm (Viegas et al, 1993;Lamas et al, 2007).…”

Section: Introductionmentioning

confidence: 99%

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Morphology and Morphometry of the Distal Articular Surface of Lunate Bone in a Kenyan Population

et al. 2016

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SUMMARY:The morphology and morphometry of the distal articular surface of the lunate exhibits inter-population variations. They are of clinical importance to hand surgeons due to their influence on the occurrence of proximal pole arthrosis which is a cause of ulnar-side wrist pain. The objective of the study was to determine the morphology and morphometry of the distal articular surface of the lunate bone in an adult Kenyan population. A descriptive cross-sectional study at the Department of Human Anatomy, University of Nairobi. Fifty-six human hands obtained for routine dissection were used. The morphology of the distal articular surface of the lunate was classified as either Type I or Type II depending on the absence or presence of a medial facet for articulation with the hamate respectively. The width of the wrists and of the medial facet in Type II lunates was measured with SOMETTM CN-25 1234 vernier calipers (accurate to 1mm). Photomacrographs of representative lunate were taken. Data were analyzed using SPSS version 17.0. The Pearson correlation test was used to check for any correlations. Type II lunate morphology was more common with a prevalence of 34 (61 %) while 19 (34 %) were Type I. The mean width of wrists with Type I lunate was 41.1±2.8 mm while those with Type II had a mean width of 46.1±4.3 mm. The mean width of the medial facet in lunate type II was 4.4±1.4 mm. Lunotriquetral fusion was demonstrated in 3 (5 %) wrists. Prevalence of Type II lunate was higher than Type I. Wrists with a Type II lunate were wider than those with Type I. There was no correlation between the width of the wrist and the width of the medial facet of the lunate.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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Morphology and Morphometry of the Distal Articular Surface of Lunate Bone in a Kenyan Population

et al. 2016

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“…On the basis of more data, we could further explore the relationship potentially associating the poses and shapes of bones. Nakamura et al [24] have shown that carpal movement is affected by variation in the shape of the lunate. This raises the possibility that there may be more general relationships between bone shape and kinematics.…”

Section: Discussionmentioning

confidence: 99%

Automatic Inference and Measurement of 3D Carpal Bone Kinematics From Single View Fluoroscopic Sequences

Chen

Graham

Hutchinson

et al. 2013

IEEE Trans. Med. Imaging

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A note on versions:The version presented here may differ from the published version or from the version of record. If you wish to cite this item you are advised to consult the publisher's version. Please see the repository url above for details on accessing the published version and note that access may require a subscription.For more information, please contact eprints@nottingham.ac.ukCopyright (c) 2011 IEEE. Personal use is permitted. For any other purposes, permission must be obtained from the IEEE by emailing pubs-permissions@ieee.org. This article has been accepted for publication in a future issue of this journal, but has not been fully edited. Content may change prior to final publication. Abstract-We present a novel framework for estimating the 3D poses and shapes of the carpal bones from single view fluoroscopic sequences. A hybrid statistical model representing both the pose and shape variation of the carpal bones is built, based on a number of 3D CT data sets obtained from different subjects at different poses. Given a fluoroscopic sequence, the wrist pose, carpal bone pose and bone shapes are estimated iteratively by matching the statistical model with the 2D images. A specially designed cost function enables smoothed parameter estimation across frames and constrains local bone pose with a penalty term. We have evaluated the proposed method on both simulated data and real fluoroscopic sequences and demonstrated that the relative poses of carpal bones can be accurately estimated. One condition that may be assessed using this measurement is dissociation, where the distance between the bones is larger than normal. Scaphoid-Lunate dissociation is one of the most common of these. The error of the measured 3D Scaphoid-Lunate distances were 0.75 ± 0.50 mm for simulated data (25 subjects) and 0.93 ± 0.47 mm for real data (15 subjects). We also propose a method for constructing a 'standard' pathology measurement tool for automatically detecting Scaphoid-Lunate dissociation conditions, based on single-view fluoroscopic sequences. For the simulated data, it produced 100% sensitivity and specificity. For the real data, it achieved 83% sensitivity and 78% specificity.

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“…The latter variation in the lunate is of importance since significant cartilage erosion at the proximal pole of the hamate is evident at dissection in more than half of the type II lunates, but is not seen in type I lunates (Viegas et al, 1993;Sagerman et al, 1995;Nakamura et al, 2001). Nakamura et al (2000) demonstrated that the kinematics of type lunates are different from those of type II lunates during radial-ulnar deviations.…”

Section: Shape Variations Of the Lunatementioning

confidence: 96%

Statistical descriptions of scaphoid and lunate bone shapes

Giessen

Foumani

Streekstra

et al. 2010

Journal of Biomechanics

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Motion analysis in two dimensions of radial-ulnar deviation of type I versus type II lunates

Cited by 85 publications

References 16 publications

Morphology and Morphometry of the Distal Articular Surface of Lunate Bone in a Kenyan Population

Morphology and Morphometry of the Distal Articular Surface of Lunate Bone in a Kenyan Population

Automatic Inference and Measurement of 3D Carpal Bone Kinematics From Single View Fluoroscopic Sequences

Statistical descriptions of scaphoid and lunate bone shapes

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