Four-dimensional CT Analysis of Wrist Kinematics during Radioulnar Deviation

Rauch, Aymeric; Arab, Waled Abou; Dap, F.; Dautel, G.; Blum, Alain; Teixeira, Pedro Augusto Gondim

doi:10.1148/radiol.2018180640

Cited by 33 publications

(29 citation statements)

References 29 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The current study is consistent with that of Rauch et al 13 and confirm the benefits of using 4DCTwith RUD movements during the imaging work-up of patients with suspected chronic SLI.…”

Section: Discussionsupporting

confidence: 92%

Four-Dimensional CT Analysis of Dorsal Intercalated Segment Instability in patients with Suspected Scapholunate Instability

Athlani

Granero²,

Rouizi

et al. 2021

J Wrist Surg

Self Cite

View full text Add to dashboard Cite

Background In this study we sought to evaluate the contribution of dynamic four-dimensional computed tomography (4DCT) relative to the standard imaging work-up for the identification of the dorsal intercalated segment instability (DISI) in patients with suspected chronic scapholunate instability (SLI). Methods Forty patients (22 men, 18 women; mean age 46.5 ± 13.1 years) with suspected SLI were evaluated prospectively with radiographs, arthrography, and 4DCT. Based on radiographs and CT arthrography, three groups were defined: positive SLI (n = 16), negative SLI (n = 19), and questionable SLI (n = 5). Two independent readers used 4DCT to evaluate the lunocapitate angle (LCA) (mean, max, coefficient of variation [CV], and range values) during radioulnar deviation. Results The interobserver variability of the 4DCT variables was deemed excellent (intraclass correlation coefficient = 0.79 to 0.96). Between the three groups, there was no identifiable difference for the LCAmean. The LCAmax values were lower in the positive SLI group (88 degrees) than the negative SLI group (102 degrees). The positive SLI group had significantly lower LCAcv (7% vs. 12%, p = 0.02) and LCArange (18 vs. 27 degrees, p = 0.01) values than the negative SLI group. The difference in all the LCA parameters between the positive SLI group and the questionable SLI group was not statistically significant. When comparing the negative SLI and questionable SLI groups, the LCAcv (p = 0.03) and LCArange (p = 0.02) values were also significantly different. The best differentiation between patients with and without SLI was obtained with a LCAcv and LCArange threshold values of 9% (specificity of 63% and sensitivity of 62%) and 20 degrees (specificity of 71% and sensitivity of 63%), respectively. Conclusion In this study, 4DCT appeared as a quantitative and reproducible relevant tool for the evaluation of DISI deformity in cases of SLI, including for patients presenting with questionable initial radiography findings. Level of evidence This is a Level III study.

show abstract

“…The current study is consistent with that of Rauch et al 13 and confirm the benefits of using 4DCTwith RUD movements during the imaging work-up of patients with suspected chronic SLI.…”

Section: Discussionsupporting

confidence: 92%

Four-Dimensional CT Analysis of Dorsal Intercalated Segment Instability in patients with Suspected Scapholunate Instability

Athlani

Granero²,

Rouizi

et al. 2021

J Wrist Surg

Self Cite

View full text Add to dashboard Cite

show abstract

“…More recently, 4D CT has been used in cadaveric studies of the ankle to quantify kinematic changes following ligament sectioning [23]. Similarly, there have been other studies focused on scapholunate instability and calculating angles using 4D-CT [24]. However, the tracking technique utilised has been user-dependent.…”

Section: Discussionmentioning

confidence: 99%

Four-Dimensional CT Assessment of the Transverse Carpal Ligament Attachments-A Pilot Study

Deek¹,

Petric²,

Kruger³

et al. 2020

JOSR

View full text Add to dashboard Cite

“…Clinical applicability has been shown for either technique in recent years. However, both dynamic CT and MRI are still considered specialized procedures not regularly performed in the clinical routine [21,22].…”

Section: Novel Imaging Techniquesmentioning

confidence: 99%

Imaging of Carpal Instabilities

Grunz

Gietzen

Grunz

et al. 2020

Rofo

View full text Add to dashboard Cite

Background The term “carpal instability” describes different debilitating wrist conditions, in which the carpus is unable to maintain its physiological range of motion and load transfer. Depending on the cause and location of the dysfunction, four groups can be defined: dissociative, non-dissociative, complex, and adaptive carpal instability. As the most common form by far, dissociative carpal instability can further be categorized as dorsal or palmar intercalated segment instability, contingent on the afflicted interosseous ligament. Method This review article outlines the different entities of carpal instability, their pathophysiology, and their clinical presentation. It further discusses the diagnostic significance of different imaging methods as well as the established treatment options for each form of instability in context with the current literature. Results and Conclusion Early detection and treatment of carpal instability are essential for preventing carpal osteoarthritis. Traumatic lesions of the scapholunate interosseous ligament are the most frequent cause of instability. They can occur in an isolated fashion or in context with other carpal injuries. While stress imaging and fluoroscopy facilitate the differentiation between dynamic and static forms of carpal instability, only MRI and CT/MR arthrography can directly reveal the extent of ligament discontinuity. Key Points: Citation Format

show abstract

Four-dimensional CT Analysis of Wrist Kinematics during Radioulnar Deviation

Cited by 33 publications

References 29 publications

Four-Dimensional CT Analysis of Dorsal Intercalated Segment Instability in patients with Suspected Scapholunate Instability

Four-Dimensional CT Analysis of Dorsal Intercalated Segment Instability in patients with Suspected Scapholunate Instability

Four-Dimensional CT Assessment of the Transverse Carpal Ligament Attachments-A Pilot Study

Imaging of Carpal Instabilities

Contact Info

Product

Resources

About