Carpal Kinematics in Madelung Deformity

Purpose: The purpose of this study was to investigate the kinematics of seven carpal bones during a simulated active (tendon-driven) and passive (externally-assisted) motion of the wrist.

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The use of bone contour registration to investigate carpal kinematics

Journal of Biomechanics ◽

10.1016/0021-9290(94)90138-4 ◽

1994 ◽

Vol 27 (5) ◽

pp. 616

Keyword(s):

Carpal Kinematics

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Three-dimensional kinematics of the lunate, hamate, capitate and triquetrum with type 1 or 2 lunate morphology

Journal of Hand Surgery (European Volume) ◽

10.1177/1753193417744420 ◽

2017 ◽

Vol 43 (4) ◽

pp. 380-386 ◽

Cited By ~ 4

Author(s):

Shingo Abe ◽

Hisao Moritomo ◽

Kunihiro Oka ◽

Kazuomi Sugamoto ◽

Kenji Kasubuchi ◽

...

Keyword(s):

Standard Deviation ◽

Wrist Joint ◽

Three Dimensional ◽

Wrist Flexion ◽

Ulnar Deviation ◽

Dart Throwing ◽

Carpal Kinematics ◽

Throwing Motion

The purpose of this study was to investigate the differences in three-dimensional carpal kinematics between type 1 and 2 lunates. We studied 15 instances of wrist flexion to extension (nine type 1, six type 2), 13 of radial to ulnar deviation (seven type 1, six type 2), and 12 of dart-throwing motion (six each of type 1 and 2) in 25 normal participants based on imaging with computerized tomography. Mean proximal translation of the distal articular midpoint of the triquetrum relative to type 2 lunates during wrist radioulnar deviation was 2.9 mm (standard deviation (SD) 0.7), which was significantly greater than for type 1 lunates, 1.6 mm (SD 0.6). The hamate contacted the lunate in ulnar deviation and ulnar flexion of wrists with type 2 lunates but not with type 1. We conclude that the four-corner kinematics of the wrist joint are different between type 1 and 2 lunates.

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Treatment of Madelung Deformity With Vicker Ligament Release and Radial Physiolyses: A Case Series

The Journal Of Hand Surgery ◽

10.1016/j.jhsa.2018.04.033 ◽

2019 ◽

Vol 44 (2) ◽

pp. 158.e1-158.e9 ◽

Cited By ~ 1

Author(s):

Jeffrey E. Otte ◽

James E. Popp ◽

Julie Balch Samora

Keyword(s):

Case Series ◽

Madelung Deformity

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A rare, late presentation of pseudo-Madelung deformity

British Journal of Hospital Medicine ◽

10.12968/hmed.2021.0037 ◽

2021 ◽

pp. 1-2

Author(s):

Ullas Jayaraju ◽

Jennifer Waterman ◽

Angus D Maclean

Keyword(s):

Late Presentation ◽

Madelung Deformity

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Madelung Deformity

Diagnostic Imaging: Musculoskeletal Non-Traumatic Disease ◽

10.1016/b978-0-323-39252-5.50183-9 ◽

2016 ◽

pp. 710-713

Keyword(s):

Madelung Deformity

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Carpal Kinematics following Sequential Scapholunate Ligament Sectioning

Journal of Wrist Surgery ◽

10.1055/s-0038-1676865 ◽

2019 ◽

Vol 08 (02) ◽

pp. 124-131 ◽

Cited By ~ 3

Author(s):

Clare Padmore ◽

Helen Stoesser ◽

G. Daniel Langohr ◽

James Johnson ◽

Nina Suh

Keyword(s):

Treatment Strategies ◽

Biomechanical Study ◽

Wrist Flexion ◽

Scapholunate Ligament ◽

Wrist Extension ◽

Intact State ◽

Carpal Kinematics ◽

Significant Change ◽

Flexion And Extension

Background The scapholunate ligament (SLL) is the most commonly injured intercarpal ligament of the wrist. It is the primary stabilizer of the scapholunate (SL) joint, but the scaphotrapeziotrapezoid (STT) and radioscaphocapitate (RSC) ligaments may also contribute to SL stability. The contributions of SL joint stabilizers have been reported previously; however, this study aims to examine their contributions to SL stability using a different methodology than previous studies. Purpose The purpose of this in vitro biomechanical study was to quantify changes in SL kinematics during wrist flexion and extension following a previously untested sequential sectioning series of the SL ligament and secondary stabilizers. Methods Eight cadaveric upper extremities underwent active wrist flexion and extension in a custom motion wrist simulator. SL kinematics were captured with respect to the distal radius. A five-stage sequential sectioning protocol was performed, with data analyzed from 45-degree wrist flexion to 45-degree wrist extension. Results Wrist flexion and extension caused the lunate to adopt a more extended posture following sectioning of the SLL and secondary stabilizers compared with the intact state (p < 0.009). The isolated disruption to the dorsal portion of the SLL did not result in significant change in lunate kinematics compared with the intact state (p > 0.05). Scaphoid kinematics were altered in wrist flexion following sequential sectioning (p = 0.013). Additionally, disruption of the primary and secondary stabilizers caused significant change to SL motion in both wrist flexion and wrist extension (p < 0.03). Conclusions The SLL is the primary stabilizer of the SL articulation, with the STT and RSC ligaments playing secondary stabilization roles. Clinical Relevance Understanding the role primary and secondary SL joint stabilizers may assist in the development of more effective treatment strategies and patient outcomes following SLL injuries.

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