Contact area inside the distal radioulnar joint: Effect of axial loading and position of the forearm

2007 ◽  
Vol 22 (3) ◽  
pp. 313-318 ◽  
Author(s):  
H. Shaaban ◽  
G. Giakas ◽  
M. Bolton ◽  
R. Williams ◽  
P. Wicks ◽  
...  
Keyword(s):  
Contact Area ◽  
Axial Loading ◽  
Distal Radioulnar Joint ◽  
Joint Effect ◽  
Radioulnar Joint

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.

Ulnar Shortening for the Treatment of Early Post-Traumatic Osteoarthritis at the Distal Radioulnar Joint

2001 ◽  
Vol 26 (1) ◽  
pp. 41-44 ◽  
Author(s):  
L. R. SCHEKER ◽  
A. SEVERO
Keyword(s):  
Contact Area ◽  
Distal Radioulnar Joint ◽  
Early Osteoarthritis ◽  
Self Assessment ◽  
Radioulnar Joint ◽  
Ulnar Head ◽  
Relieve Pain ◽  
Post Traumatic ◽  
The Mean

This prospective study describes the outcome of ulnar shortening performed on 32 wrists with early osteoarthritis of the distal radiounlar joint (DRUJ) in an attempt to change the contact area between the ulnar head and the radial sigmoid notch. By changing the contact area, we attempted to relieve pain, while maintaining the function of the DRUJ. The mean age of the patients was 34 years, and the mean follow-up was three years and two months. The wrists were graded by the patients’ self-assessment of satisfaction and by a clinical wrist rating that assessed pain, functional status, range of motion, and grip strength. In terms of self-assessment, 16/32 patients were very satisfied, with complete pain relief. Of the 32 patients, 26 said that they would have surgery again if circumstances were similar. The postoperative wrist ratings were 7/32 excellent, 11/32 good, 9/32 fair, 5/32 poor. The most frequent postoperative complaint was plate irritation.

The Load-Bearing Characteristics of the Forearm: Pattern of Axial and Bending Force Transmitted Through Ulna and Radius

2006 ◽  
Vol 31 (3) ◽  
pp. 274-279 ◽  
Author(s):  
H. SHAABAN ◽  
G. GIAKAS ◽  
M. BOLTON ◽  
R. WILLIAMS ◽  
P. WICKS ◽  
...  
Keyword(s):  
Distal Radius ◽  
Axial Loading ◽  
Distal Radioulnar Joint ◽  
Biomechanical Study ◽  
Strain Gauges ◽  
Force Transmission ◽  
Distal Ulna ◽  
Radioulnar Joint ◽  
Bending Force ◽  
Ulnar Head

A biomechanical study was performed on 12 cadaveric arms to define the normal profiles of force transmission through the ulna and radius and demonstrate the effect on these of simulated injury of the distal radioulnar joint (DRUJ). Strain gauges were used to measure the axial and bending forces transmitted through each bone. Axial force transmitted through the ulna is, broadly, reciprocal to that seen in the radius, with the greatest force seen in supination. In all 12 arms, axial loading of the hand created an anterior bending force (to create a posterior convexity) in the distal radius. Axial loading of the hand created an anterior bending force in the distal ulna for half the specimens and a posterior bending force in the remaining half. Division and division with reconstruction of either the volar or the dorsal distal radioulnar ligament (DRUL) had no significant effect on force transmission through the ulna and radius, while excision of the ulnar head significantly disrupted the profiles of the axial and bending forces.

The biomechanical and functional relationships of the proximal radioulnar joint, distal radioulnar joint, and interosseous ligament

2014 ◽  
Vol 40 (5) ◽  
pp. 485-493 ◽  
Author(s):  
P. S. C. Malone ◽  
J. Cooley ◽  
J. Morris ◽  
G. Terenghi ◽  
V. C. Lees
Keyword(s):  
Pressure Sensors ◽  
Axial Loading ◽  
Distal Radioulnar Joint ◽  
Biomechanical Study ◽  
Axial Loads ◽  
Interosseous Ligament ◽  
Radioulnar Joint ◽  
Functional Relationships ◽  
Pressure Profiles ◽  
And Function

This biomechanical study assessed integrated function of the proximal radioulnar joint (PRUJ), interosseous ligament (IOL), and distal radioulnar joint (DRUJ). Tekscan™ pressure sensors were inserted into the DRUJ and PRUJ of 15 cadaveric specimens. MicroStrain® sensors were mounted onto the IOL on nine of these specimens. A customized biomechanical jig was used to apply axial loads and take measurements through pronosupination. The PRUJ, IOL, and DRUJ were shown to function as an integrated osseoligamentous system distributing applied load. The PRUJ has transmitted pressure profiles similar to those of the DRUJ. Different IOL components support loading at different stages of pronosupination. The IOL is lax during pronation. Mid-IOL tension peaks in the midrange of forearm rotation; distal-IOL tension peaks in supination. Axial loading consistently increases IOL strain in a non-linear fashion. There are clinical implications of this work: disease or surgical modification of any of these structures may compromise normal biomechanics and function.

Top-Ten Tips for Imaging the Triangular Fibrocartilaginous Complex

2019 ◽  
Vol 23 (04) ◽  
pp. 436-443
Author(s):  
Alex W.H. Ng ◽  
Cina S.L. Tong ◽  
Esther H.Y. Hung ◽  
James F. Griffith ◽  
W.L Tse ◽  
...  
Keyword(s):  
Complex Structure ◽  
Axial Loading ◽  
Distal Radioulnar Joint ◽  
Resonance Imaging ◽  
Joint Injury ◽  
Radioulnar Joint ◽  
Triangular Fibrocartilage ◽  
Magnetic Resonance Imaging Mri ◽  
The Stability ◽  
Chronic Wrist Pain

AbstractThe triangular fibrocartilage complex (TFCC) is a crucial structure for both maintaining the stability of the distal radioulnar joint (DRUJ) and acting as a cushion for axial loading of the ulnocarpal joint. Injury to the TFCC can lead to early degeneration of the DRUJ and ulnocarpal joint, with resultant chronic wrist pain and weakness. The TFCC is a moderately complex structure with several attachments to the adjacent bony and cartilaginous structures. Familiarity with the anatomy of the TFCC is a prerequisite for identification of TFCC tears. Several pitfalls can occur while assessing the TFCC on magnetic resonance imaging (MRI) if one is not familiar with the MRI appearances. This article illustrates key tips for diagnosing TFCC tears on MRI.

Range of Motion after the Sauvé–Kapandji and Darrach Procedures without Extensor Tendon Rupture

2020 ◽  
Author(s):  
Tomoyuki Kato ◽  
Taku Suzuki ◽  
Makoto Kameyama ◽  
Masato Okazaki ◽  
Yasushi Morisawa ◽  
...  
Keyword(s):  
Range Of Motion ◽  
Tendon Rupture ◽  
Extensor Tendon ◽  
Distal Radioulnar Joint ◽  
Wrist Flexion ◽  
Level Of Evidence ◽  
Radioulnar Joint ◽  
The Mean ◽  
Therapeutic Study ◽  
Loss Of Motion

Abstract Background Previous study demonstrated that distal radioulnar joint (DRUJ) plays a biomechanical role in extension and flexion of the wrist and suggested that fixation of the DRUJ could lead to loss of motion of the wrist. Little is known about the pre- and postoperative range of motion (ROM) after the Sauvé–Kapandji (S-K) and Darrach procedures without tendon rupture. To understand the accurate ROM of the wrist after the S-K and Darrach procedures, enrollment of patients without subcutaneous extensor tendon rupture is needed. Purpose This study aimed to investigate the pre- and postoperative ROM after the S-K and Darrach procedures without subcutaneous extensor tendon rupture in patients with rheumatoid arthritis (RA) and osteoarthritis (OA). Methods This retrospective study included 36 patients who underwent the S-K procedure and 10 patients who underwent the Darrach procedure for distal radioulnar joint disorders without extensor tendon rupture. Pre- and postoperative ROMs after the S-K and Darrach procedures were assessed 1 year after the surgery. Results In the S-K procedure, the mean postoperative ROM of the wrist flexion (40 degrees) was significantly lower than the mean preoperative ROM (49 degrees). In wrist extension, there were no significant differences between the mean preoperative ROM (51 degrees) and postoperative ROM (51 degrees). In the Darrach procedure, the mean postoperative ROM of the wrist flexion and extension increased compared with the mean preoperative ROM; however, there were no significant differences. Conclusion In the S-K procedure, preoperative ROM of the wrist flexion decreased postoperatively. This study provides information about the accurate ROM after the S-K and Darrach procedures. Level of Evidence This is a Level IV, therapeutic study.

The congruence of the distal radioulnar joint

1988 ◽  
Vol 59 (2) ◽  
pp. 183-185
Author(s):  
Claes Olerud ◽  
Jorgen Kongsholm ◽  
Karl-ÅKe Thuomas
Keyword(s):  
Distal Radioulnar Joint ◽  
Radioulnar Joint
Sign in / Sign up

Export Citation Format

Share Document