A Cadaveric Study of The Anatomy and Stability of The Distal Radioulnar Joint in The Coronal and Transverse Planes

1996 ◽  
Vol 21 (5) ◽  
pp. 587-594 ◽  
Author(s):  
A. R. TOLAT ◽  
J. K. STANLEY ◽  
I. A. TRAIL
Keyword(s):  
Small Area ◽  
Articular Surface ◽  
Type A ◽  
Distal Radioulnar Joint ◽  
Transverse Plane ◽  
Cadaveric Study ◽  
Interosseous Membrane ◽  
Radioulnar Joint ◽  
Face Type ◽  
Sigmoid Notch

Fifty preserved cadaver wrist specimens were studied. The anatomy of the distal radioulnar joint is complex, with varying configurations in the transverse and midcoronal planes. There is disparity in the radii of curvature of the sigmoid notch and the ulna-articular surface in the transverse plane, with resultant articular incongruity. Motion at the distal radioulnar joint is, hence, likely to be a combination of sliding and rotation with a small area of true appositional contact. The palmar osteocartilaginous lip of the sigmoid notch, along with the interosseous membrane, may be of importance in distal radioulnar stability. Palmar and dorsal radioulnar ligaments may act as “check-rein” ligaments, especially when seen with the “flat face” (type A) sigmoid notch.

Morphological characteristics of the sigmoid notch of the distal radius affect the stress distribution patterns in the distal radioulnar joint

2018 ◽  
Vol 44 (5) ◽  
pp. 496-502 ◽  
Author(s):  
Yukinori Tsukuda ◽  
Daisuke Kawamura ◽  
Yuichiro Matsui ◽  
Norimasa Iwasaki
Keyword(s):  
Stress Distribution ◽  
Articular Surface ◽  
Morphological Characteristics ◽  
Distribution Patterns ◽  
Distal Radioulnar Joint ◽  
High Density ◽  
Radioulnar Joint ◽  
Sigmoid Notch ◽  
Group 16 ◽  
Morphological Differences

The aim of this study was to clarify the effects of morphological patterns of the sigmoid notch on the stress distribution across the articular surface of the distal radioulnar joint using a computed tomography osteoabsorptiometry method. Fourteen wrists from 13 patients were classified into two groups according to the type of sigmoid notch, namely the ‘C’ type and ski-slope sigmoids, and the percentages of high-density areas on the articular surface were quantitatively analysed. The percentage of the high-density area of the dorsal region in the ski-slope sigmoid group was significantly greater than that of the ‘C’ type sigmoid group (16% vs 4.1%) and of the volar region of the ski-slope sigmoid group (16% vs 2.4%). The results indicate that bony morphological differences in the radial sigmoid notch affect the stress distribution pattern through the distal radioulnar joint.

The Interosseous Membrane and its Influence on the Distal Radioulnar Joint

1998 ◽  
Vol 23 (2) ◽  
pp. 179-182 ◽  
Author(s):  
M. GABL ◽  
R. ZIMMERMANN ◽  
P. ANGERMANN ◽  
P. SEKORA ◽  
H. MAURER ◽  
...  
Keyword(s):  
Distal Radioulnar Joint ◽  
Structure And Function ◽  
Interosseous Membrane ◽  
Radioulnar Joint ◽  
Ulnar Head ◽  
Sigmoid Notch ◽  
Extensor Carpi Ulnaris ◽  
Triangular Fibrocartilage ◽  
And Function

From the interosseous membrane of the forearm a tract extends to the dorsal capsule of the distal radioulnar joint. The structure and function of this tract have been investigated. The tract originates from the radius 22 mm proximal to the distal dorsal corner of the sigmoid notch. Central fibres are attached there with fibrous cartilage and superficial bundles mix with the periosteum. The tract is 8 mm wide, 31 mm long and 1 mm thick. Distally it inserts at the capsule of the distal radioulnar joint between the tendon sheaths of extensor digiti minimi and extensor carpi ulnaris. Deep fibres insert directly at the triangular fibrocartilage. The tract of the interosseous membrane is taut in pronation and loose in supination. It strengthens the dorsal capsule of the distal radioulnar joint. During pronation the tract protects the ulnar head in a sling. Its attachment at the triangular fibrocartilage influences the distal radioulnar joint. Its insertion at the triangular fibrocartilage and the support of the weakest part of the dorsal capsule are of interest.

scholarly journals Three-Dimensional Automated Assessment of the Distal Radioulnar Joint Morphology According to Sigmoid Notch Surface Orientation

2020 ◽  
Vol 45 (11) ◽  
pp. 1083.e1-1083.e11
Author(s):  
Simon Roner ◽  
Philipp Fürnstahl ◽  
Anne-Gita Scheibler ◽  
Reto Sutter ◽  
Ladislav Nagy ◽  
...  
Keyword(s):  
Three Dimensional ◽  
Distal Radioulnar Joint ◽  
Surface Orientation ◽  
Automated Assessment ◽  
Radioulnar Joint ◽  
Sigmoid Notch ◽  
Joint Morphology

scholarly journals Reconstruction of the Distal Oblique Bundle of the Interosseous Membrane with Extensor Carpi Radialis Hemitendon: A New Minimally-Invasive Technique

2020 ◽  
Vol 48 (02) ◽  
pp. 138-142
Author(s):  
Francisco Martínez-Martínez ◽  
Alberto Giménez-Ros ◽  
Vicente J. León-Muñoz ◽  
Fernando Santonja-Medina
Keyword(s):  
Minimally Invasive ◽  
Therapeutic Option ◽  
Distal Radioulnar Joint ◽  
Minimally Invasive Technique ◽  
Interosseous Membrane ◽  
Invasive Technique ◽  
Radioulnar Joint ◽  
Triangular Fibrocartilage ◽  
Extensor Carpi Radialis ◽  
Stabilizing Element

AbstractThe main stabilizing element of the distal radioulnar joint (DRUJ) is the triangular fibrocartilage complex (TFCC). Secondary stabilizers include the distal oblique band (DOB), which is inconsistently found. When TFCC repair has failed or cannot be performed, DOB reconstruction is a therapeutic option. Even though distal radioulnar ligamentoplasty remains the technique of choice, recent papers show similar outcomes from both methods. We present two cases of successful DOB repair with the extensor carpi radialis longus (ECRL) hemitendon.

The Stabilizing Effect of the Distal Interosseous Membrane on the Distal Radioulnar Joint in an Ulnar Shortening Procedure: A Biomechanical Study

2011 ◽  
Vol 93 (21) ◽  
pp. 2022-2030 ◽  
Author(s):  
Sayuri Arimitsu ◽  
Hisao Moritomo ◽  
Takashi Kitamura ◽  
Lawrence J Berglund ◽  
Kristin D Zhao ◽  
...  
Keyword(s):  
Distal Radioulnar Joint ◽  
Biomechanical Study ◽  
Interosseous Membrane ◽  
Radioulnar Joint ◽  
Stabilizing Effect

scholarly journals Stress distribution pattern in the distal radioulnar joint before and after ulnar shortening osteotomy in patients with ulnar impaction syndrome

2021 ◽  
Author(s):  
Kazutoshi Hontani ◽  
Yuichiro Matsui ◽  
Daisuke Kawamura ◽  
Atsushi Urita ◽  
Daisuke Momma ◽  
...  
Keyword(s):  
Stress Distribution ◽  
Distribution Pattern ◽  
Distal Radioulnar Joint ◽  
Radioulnar Joint ◽  
Sigmoid Notch ◽  
Ulnar Shortening Osteotomy ◽  
Ulnar Impaction ◽  
Shortening Osteotomy ◽  
Type C ◽  
Ulnar Impaction Syndrome

Abstract Ulnar shortening osteotomy (USO) for ulnar impaction syndrome potentially leads to degenerative changes of the distal radioulnar joint (DRUJ). The aim of this study was to evaluate the effect of the sigmoid notch morphology on the stress distribution pattern of the DRUJ using computed tomography (CT) osteoabsorptiometry (CT-OAM). We reviewed the pre- and postoperative transverse CT images of 15 wrists that had undergone USO. The examined wrists were classified into two groups based on the sigmoid notch morphology: the linear-type notch (type L) and the curved-type notch (type C). We calculated and statistically compared the percentage of the high-density area (%HDA) in each divided region of the sigmoid notch. In type L, %HDA was significantly larger in the distal-dorsal region of the sigmoid notch before USO. Postoperatively, in type L, no specific regions showed significantly different %HDA. In type C, %HDA was significantly larger in the distal-volar region of the sigmoid notch before USO. Postoperatively, %HDA of type C was significantly larger in the proximal-volar region. Our results suggest that in patients with USO, morphological evaluation of the sigmoid notch can serve as a predictor of osteoarthritis in the DRUJ with or without USO.

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