Ulnar corner

2011 ◽  
Author(s):  
David Warwick ◽  
Roderick Dunn ◽  
Erman Melikyan ◽  
Jane Vadher
Keyword(s):  
Distal Radius ◽  
Distal Radioulnar Joint ◽  
Non Union ◽  
Radioulnar Joint ◽  
Sigmoid Notch ◽  
Variable Contribution ◽  
Distal Radius Malunion ◽  
Carpal Joint ◽  
Hook Of Hamate ◽  
Radius Malunion

Anatomy 470Causes of ulnar corner pain 472Tendon 474Hook of hamate non-union 475Luno-triquetral instability 476Ulnar translation of carpus 477Distal radioulnar joint 478Ulno–carpal joint 480Pisotriquetral joint 482Other causes of ulnar corner pain 484Surgical procedures 486Ulnar head—270° cartilage, articulates with sigmoid notch of distal radius. Variable concavity of sigmoid notch = variable contribution to stability and variable exposure to ulnar corner symptoms after distal radius malunion....

scholarly journals Effects of distal radius malunion on distal radioulnar joint mechanics—an in vivo study

2007 ◽  
Vol 25 (4) ◽  
pp. 547-555 ◽  
Author(s):  
Joseph J. Crisco ◽  
Douglas C. Moore ◽  
G. Elisabeta Marai ◽  
David H. Laidlaw ◽  
Edward Akelman ◽  
...  
Keyword(s):  
Distal Radius ◽  
Distal Radioulnar Joint ◽  
In Vivo Study ◽  
Joint Mechanics ◽  
Radioulnar Joint ◽  
Distal Radius Malunion ◽  
Radius Malunion

CORRECTIVE OSTEOTOMY FOR INTRA-ARTICULAR MALUNION OF THE SIGMOID NOTCH OF THE DISTAL PART OF THE RADIUS: A CASE REPORT

Hand Surgery ◽  
2008 ◽  
Vol 13 (02) ◽  
pp. 93-97 ◽  
Author(s):  
Chun-Ying Cheng ◽  
Chung-Hsun Chang
Keyword(s):  
Distal Radius Fracture ◽  
Distal Radius ◽  
Distal Part ◽  
Corrective Osteotomy ◽  
Distal Radioulnar Joint ◽  
Radius Fracture ◽  
Radioulnar Joint ◽  
Sigmoid Notch ◽  
Radiocarpal Joint ◽  
Joint Incongruity

Joint incongruity at radiocarpal joint is a common complication of the distal radius fracture, and has received much attention and study. However, the problem and outcome of treatment of intra-articular incongruity at the sigmoid notch after distal radius fracture is rarely reported. We describe a patient with deformity of the distal radioulnar joint, and impairment of supination after distal radius fracture. The evaluation of the distal radioulnar joint revealed the absence of degenerative arthritis and malunion of the sigmoid notch of the distal radius with a prominent volar lip limiting supination. We present a method of corrective osteotomy for the malunited sigmoid notch of the distal radius, to correct the incongruity of the distal radioulnar joint and restore supination.

Sigmoid Notch Reconstruction and Limited Carpal Arthrodesis for a Severely Comminuted Distal Radius Malunion: Case Report

2012 ◽  
Vol 37 (3) ◽  
pp. 481-485 ◽  
Author(s):  
Francisco del Piñal ◽  
Alexis Studer ◽  
Carlos Thams ◽  
Eduardo Moraleda
Keyword(s):  
Case Report ◽  
Distal Radius ◽  
Sigmoid Notch ◽  
Distal Radius Malunion ◽  
Radius Malunion

Three-Dimensional Versus Radiographic Measurements for Analyzing Extra-Articular Distal Radius Malunion

2020 ◽  
Vol 45 (10) ◽  
pp. 984.e1-984.e7
Author(s):  
Lionel Athlani ◽  
Audrey Chenel ◽  
Philippe Berton ◽  
Romain Detammaecker ◽  
Gilles Dautel
Keyword(s):  
Distal Radius ◽  
Three Dimensional ◽  
Radiographic Measurements ◽  
Distal Radius Malunion ◽  
Radius Malunion

In vivo measurement of distal radioulnar translation following distal radius fracture

2021 ◽  
pp. 175319342110166
Author(s):  
Grey E. B. Giddins ◽  
Greg T. Pickering
Keyword(s):  
Distal Radius Fracture ◽  
Distal Radius ◽  
Distal Radioulnar Joint ◽  
Wrist Fracture ◽  
Radius Fracture ◽  
Normal Range ◽  
Radioulnar Joint ◽  
In Vivo Measurement ◽  
Objectively Measured

The incidence of distal radioulnar joint instability following a distal radius fracture is estimated around one in three based upon clinical examination. Using a validated rig, we objectively measured distal radioulnar joint translation in vivo following distal radius fracture. Dorsopalmar translation of the distal radioulnar joint was measured in 50 adults with previous distal radius fractures. Measurements were compared with the uninjured wrist and against a database of previous measurements within healthy and clinically lax populations. Translation at the distal radioulnar joint was greater in injured wrists at 12.2 mm (range 10–15, SD 1.2) than the uninjured wrists at 6.4 (range 4–9, SD 0.8) ( p < 0.001) and was always outside the established normal range. There was no statistically significant link between translation and the severity of the injury. Instability appears almost inevitable following a distal radius (wrist) fracture, albeit subclinical in the vast majority.

scholarly journals The Effect of Dorsal Angulation on Distal Radioulnar Joint Arthrokinematics Measured Using Intercartilage Distance

2018 ◽  
Vol 08 (01) ◽  
pp. 010-017
Author(s):  
Emily Lalone ◽  
Masao Nishiwaki ◽  
Ryan Willing ◽  
James Johnson ◽  
Graham King ◽  
...  
Keyword(s):  
Distal Radius ◽  
Contact Area ◽  
Three Dimensional ◽  
Distal Radioulnar Joint ◽  
Radioulnar Joint ◽  
Motion Data ◽  
Contact Patterns ◽  
Dorsal Angulation ◽  
Triangular Fibrocartilage

Background The effects of dorsal angulation deformity on in vitro distal radioulnar joint (DRUJ) contact patterns are not well understood. Purpose The purpose of this study was to utilize intercartilage distance to examine the effects of forearm rotation angle, distal radius deformity, and triangular fibrocartilage complex (TFCC) sectioning on DRUJ contact area and centroid position. Methods An adjustable implant permitted the creation of simulated intact state and dorsal angulation deformities of 10, 20, and 30 degrees. Three-dimensional cartilage models of the distal radius and ulna were created using computed tomography data. Using optically tracked motion data, the relative position of the cartilage models was rendered and used to measure DRUJ cartilage contact mechanics. Results DRUJ contact area was highest between 10 and 30 degrees of supination. TFCC sectioning caused a significant decrease in contact area with a mean reduction of 11 ± 7 mm2 between the TFCC intact and sectioned conditions across all variables. The position of the contact centroid moved volarly and proximally with supination for all variables. Deformity had a significant effect on the location of the contact centroid along the volar–dorsal plane. Conclusion Contact area in the DRUJ was maximal between 10 and 30 degrees of supination during the conditions tested. There was a significant effect of simulated TFCC rupture on contact area in the DRUJ, with a mean contact reduction of 11 ± 7 mm2 after sectioning. Increasing dorsal angulation caused the contact centroid to move progressively more volar in the sigmoid notch.

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