Imaging Recognition of Morphological Variants at the Midcarpal Joint

McLean, James M.; Bain, Gregory I.; Watts, Adam C.; Mooney, Luke; Turner, Perry C.; Moss, Mary

doi:10.1016/j.jhsa.2009.03.002

Cited by 20 publications

(39 citation statements)

References 36 publications

(92 reference statements)

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“…Based on our results, plain radiographs, 2D-CT, 3D-CT, and MRI were all unable to reliably predict X-ray plain radiography, 2D-CT two-dimensional computed tomography, 3D-CT three-dimensional computed tomography, MRI magnetic resonance imaging, PPV positive predictive value, NPV negative predictive value capitate morphology and specific detection of V-shaped capitates was poor. These findings corroborate a study by McLean et al which concluded that direct visualization (i.e., surgical dissection) was necessary to determine V-shaped capitates [7]. Our data demonstrate that the most sensitive and specific modality for determining capitate morphology was 2D-CT.…”

Section: Discussionsupporting

confidence: 91%

“…Each specimen was thawed and prepared for radiographic analysis. For each specimen, three views (anteroposterior, lateral, and oblique views) of the wrist were obtained using standard protocols for plain film imaging [7]. The wrists were held in neutral radioulnar deviation, and straight alignment was maintained between the long finger metacarpal, capitate, and radius.…”

Section: Methodsmentioning

confidence: 99%

See 1 more Smart Citation

Common Radiographic Imaging Modalities Fail to Accurately Predict Capitate Morphology

Niacaris

Wong

Patel

et al. 2015

Hand (New York, N,Y.)

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Section: Discussionsupporting

confidence: 91%

Section: Methodsmentioning

confidence: 99%

Common Radiographic Imaging Modalities Fail to Accurately Predict Capitate Morphology

Niacaris

Wong

Patel

et al. 2015

Hand (New York, N,Y.)

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“…The neutral wrist position on radiography was defined as less than a 20-degree angle between the axes of the radius and third metacarpal bone. MR arthrography was considered our reference standard for classifying lunate morphology because its accuracy for this purpose is comparable with anatomic dissection [18]. Due to sex-specific data regarding C-T distance being unavailable before we started the study, we were unable to determine sample sizes a priori .…”

Section: Methodsmentioning

confidence: 99%

Association of lunate morphology, sex, and lunotriquetral interosseous ligament injury with radiologic measurement of the capitate-triquetrum joint

et al. 2017

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Objective Radiologic presentation of carpal instability at the radial side of the carpus, e.g. scapholunate diastasis following scapholunate interosseous ligament injury, has been studied extensively. By comparison, presentation at the ulnar-sided carpus has not. The purpose of this study was to assess the effects of lunate morphology, sex, and lunotriquetral interosseous ligament (LTIL) status on the radiologic measurement of the capitate-triquetrum joint (C-T distance). Further, we sought to evaluate the diagnostic accuracy of C-T distance for assessing LTIL injuries. Materials & Methods We retrospectively identified 223 wrists with wrist radiographs and MR arthrograms with contrast injection. Data collected included sex, lunate morphology and LTIL status from MR arthrography, and C-T distance from radiography. The effects of lunate morphology, sex, and LTIL injury status on C-T distance were evaluated using generalized linear models. Diagnostic performance of C-T distance was assessed by the area under receiver-operator characteristic curve (AUROC). Results and conclusion Lunate morphology, sex, and LTIL injury status all had significant effects on C-T distance; wrists with type II lunates, men, and wrists with LTIL injuries had greater C-T distances than wrists with type I lunates, women, and wrists without LTIL injuries, respectively (p<0.01). The diagnostic value of the C-T distance was sufficient for women with type I (AUROC=0.67) and type II lunates (0.60) and good for men with type I (0.72) and type II lunates (0.77). The demonstrated influence of LTIL status on C-T distance supports the use of C-T distance as a tool for assessing full-thickness LTIL tears.

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“…Magnetic resonance imaging (MRI) has been widely used in clinical musculoskeletal evaluation diagnosis (Chang et al, 2007; Feydy et al, 2009; Hayter et al, 2013; McLean et al, 2009). MRI has been used in research to assess joint contact areas (Johnson et al, 2013a; Pillai et al, 2007), kinematics (Goto et al, 2005; Patterson et al, 2007), and cartilage deformation (McLean et al, 2009).…”

Section: Introductionmentioning

confidence: 99%

“…MRI has been used in research to assess joint contact areas (Johnson et al, 2013a; Pillai et al, 2007), kinematics (Goto et al, 2005; Patterson et al, 2007), and cartilage deformation (McLean et al, 2009). MRI-based surface contact modeling can be used to evaluate contact mechanics (Johnson et al, 2013a, b).…”

Section: Introductionmentioning

confidence: 99%

Evaluation of midcarpal capitate contact mechanics in normal, injured and post-operative wrists

Modaresi

Kallem

Lee

et al. 2017

Clinical Biomechanics

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Background Scapholunate ligament injury is a commonly occurring carpal ligament injury. Pathology associated with scapholunate ligament injury depends on several factors such as the time after injury, type of injury (instability) and the development of osteoarthritis. The aim of this study was to investigate and compare contact mechanics in the lunocapitate and scaphocapitate joints in the normal, injured (scapholunate dissociation) and repaired (postoperative) wrist. Methods Four human subjects with scapholunate ligament dissociation participated in this study. MR images of normal (contralateral), injured and postoperative wrists were obtained during relaxed condition and during active light grasp. Relaxed MR images were used to construct model geometry (bones with cartilage) for the capitate, lunate and scaphoid. Kinematic transformations were obtained by using image registration between the unloaded and functionally loaded image sets. Joint surface contact mechanics were then calculated. Findings All contact measures (contact force, pressure, mean pressure and area) tended to increase with injury in both articulations. A significantly higher contact area was found in the injured scaphocapitate joint compared to normal. A significant increase in peak pressure was observed in the postoperative state compared to normal. Interpretation Injury to the scapholunate ligament increased contact measures, suggesting a risk for onset of osteoarthritis in both the scaphocapitate and lunocapitate joints. Surgical repair appeared to restore most measures of contact mechanics to near normal values, more so for the lunocapitate joint when compared to scaphocapitate joint. The elevated postoperative peak pressures indicate the difficulty to fully restore joint mechanics.

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Imaging Recognition of Morphological Variants at the Midcarpal Joint

Cited by 20 publications

References 36 publications

Common Radiographic Imaging Modalities Fail to Accurately Predict Capitate Morphology

Common Radiographic Imaging Modalities Fail to Accurately Predict Capitate Morphology

Association of lunate morphology, sex, and lunotriquetral interosseous ligament injury with radiologic measurement of the capitate-triquetrum joint

Evaluation of midcarpal capitate contact mechanics in normal, injured and post-operative wrists

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