Three-dimensional computer simulation of radiostereometric analysis (RSA) in distal radius fractures

2007 ◽  
Vol 40 (8) ◽  
pp. 1855-1861 ◽  
Author(s):  
Rami Madanat ◽  
Niko Moritz ◽  
Hannu T. Aro
Keyword(s):  
Computer Simulation ◽  
Distal Radius ◽  
Three Dimensional ◽  
Distal Radius Fractures ◽  
Radiostereometric Analysis ◽  
Radius Fractures

CLINICAL APPLICATION OF DOUBLE DORSAL PLATES FOR THE DISTAL RADIUS FRACTURES

Hand Surgery ◽  
2005 ◽  
Vol 10 (02n03) ◽  
pp. 213-224
Author(s):  
Noriyuki Yoshida ◽  
Kazuhiko Matsushita ◽  
Takeshi Arai ◽  
Ko Izumiyama ◽  
Moroe Beppu ◽  
...  
Keyword(s):  
Cortical Bone ◽  
Clinical Application ◽  
Distal Radius ◽  
Three Dimensional ◽  
Clinical Results ◽  
Distal Radius Fractures ◽  
Radius Fractures ◽  
Radial Margin ◽  
Dimensional Models ◽  
Three Dimensional Models

The purpose of this study was to develop plates that fit the contour of the distal radius of the Japanese and can be inserted less invasively. Three-dimensional models of 36 radii of 18 volunteers were prepared. Using these models, the shape of the cortical bone on the radial margin of the distal radius and just below the dorsal fourth compartment of the wrist, to which the plates were expected to be applied, was measured, and the curves of the plates were determined. The functions of approximated curves of the plates were: [ y = -2 × 10-8 x 5 - 2 × 10-6 x 4 + 0.0006 x 3 - 0.0312 x 2 + 0.3274 x + 15.224 on the radial margin of the distal radius and [ y = 7 × 10-7 x 5 - 0.0001 x 4 + 0.0078 x 3 - 0.2355 x 2 + 3.1815 x - 5.6383 just below the fourth compartment. The clinical results of the application of double dorsal plates were satisfactory in clinical cases for the distal radius fractures.

Three-dimensional in vivo kinematics of the distal radioulnar joint in malunited distal radius fractures

2002 ◽  
Vol 27 (2) ◽  
pp. 233-242 ◽  
Author(s):  
Douglas C. Moore ◽  
Kathleen A. Hogan ◽  
Joseph J. Crisco ◽  
Edward Akelman ◽  
Manuel F. DaSilva ◽  
...  
Keyword(s):  
Distal Radius ◽  
Three Dimensional ◽  
Distal Radioulnar Joint ◽  
Distal Radius Fractures ◽  
Radius Fractures ◽  
Radioulnar Joint ◽  
In Vivo Kinematics

Three-dimensional deformity analysis of malunited distal radius fractures and their influence on wrist and forearm motion

2012 ◽  
Vol 37 (6) ◽  
pp. 506-512 ◽  
Author(s):  
J. Miyake ◽  
T. Murase ◽  
Y. Yamanaka ◽  
H. Moritomo ◽  
K. Sugamoto ◽  
...  
Keyword(s):  
Range Of Motion ◽  
Distal Radius ◽  
Three Dimensional ◽  
Axial Rotation ◽  
Computer Models ◽  
Distal Radius Fractures ◽  
Wrist Flexion ◽  
Radius Fractures ◽  
Ct Data ◽  
Flexion And Extension

Little information exists about three-dimensional (3-D) deformity patterns of malunited distal radius fractures including axial deformity. The current study aimed to clarify the 3-D deformity pattern of malunited distal radius fractures and reveal the influence of osseous deformities, including axial rotation deformity, on wrist and forearm motion. The deformity of 20 dorsally tilted malunions were evaluated using 3-D computer models created from CT data, and correlations between deformity components and range of motion were assessed. The 3-D deformity analysis showed that axial malalignment in pronation, which showed a correlation with the degree of radial tilt deformity, was very common. A radial tilt deformity of > 5° was observed in only 45% of cases. Although the range of wrist flexion and extension showed a correlation with dorsal tilt deformity, the range of forearm pronation and supination did not correlate with distal radius deformities.

scholarly journals 3D virtual pre-operative planning may reduce the incidence of dorsal screw penetration in volar plating of intra-articular distal radius fractures

2021 ◽  
Author(s):  
Jasper Prijs ◽  
Bram Schoolmeesters ◽  
Denise Eygendaal ◽  
Jean-Paul P. M. de Vries ◽  
Paul C. Jutte ◽  
...  
Keyword(s):  
Diagnostic Imaging ◽  
Distal Radius ◽  
Three Dimensional ◽  
Imaging Study ◽  
Distal Radius Fractures ◽  
Volar Plating ◽  
Radius Fractures ◽  
Operative Planning ◽  
Screw Penetration ◽  
Diagnostic Imaging Study

Abstract Purpose To evaluate the effect of three-dimensional virtual pre-operative planning (3DVP) on the incidence of dorsal screw penetration after volar plating of distal radius fractures. Methods A cross-sectional diagnostic imaging study was performed. Twenty out of 50 patients were randomly selected from our index prospective cohort (IPC): a prior study evaluating dorsal tangential views (DTVs) in reducing dorsal screw penetration in internal fixation of intra-articular distal radius fractures using post-operative CT scans to quantify screw protrusion. Pre-operative CTs from this cohort were now used for 3DVP by three experienced orthopaedic trauma surgeons (supplementary video). 3DVP was compared with the corresponding post-operative CT for assessing screw lengths and incidence of dorsal penetration. The Wilcoxon Signed Ranks test was used to compare screw lengths and the Fishers’ exact for incidence of penetration. Results Three surgeons performed 3DVP for 20 distal radius fractures and virtually applied 60 volar plates and 273 screws. Median screw length was shorter in the 3DVP when compared to IPC: 18 mm (range, 12–22) versus 20 mm (range, 14–26) (p < 0.001). The number of penetrating screws was 5% (13/273 screws) in the 3DVP group compared to 11% (10/91 screws) in the IPC (p = 0.047). Corresponding to a reduction in incidence of at least one dorsally penetrating screw in 40% of patients in the IPC group, to 18% in the 3DVP group (p = 0.069). Conclusion Three-Dimensional Virtual Pre-Operative Planning (3DVP) may reduce the incidence of dorsally penetrating screws in patients treated with volar plating for intra-articular distal radius fractures. Level of evidence II, diagnostic imaging study.

scholarly journals Three‐Dimensional In Vivo Analysis of Malunited Distal Radius Fractures With Restricted Forearm Rotation

2019 ◽  
Vol 37 (9) ◽  
pp. 1881-1891 ◽  
Author(s):  
Shingo Abe ◽  
Kunihiro Oka ◽  
Satoshi Miyamura ◽  
Atsuo Shigi ◽  
Hiroyuki Tanaka ◽  
...  
Keyword(s):  
Distal Radius ◽  
Three Dimensional ◽  
Distal Radius Fractures ◽  
Radius Fractures ◽  
Forearm Rotation ◽  
In Vivo Analysis

scholarly journals Three-dimensional evaluations of preoperative planning reproducibility for the osteosynthesis of distal radius fractures

2021 ◽  
Vol 16 (1) ◽  
Author(s):  
Yuichi Yoshii ◽  
Takeshi Ogawa ◽  
Atsuo Shigi ◽  
Kunihiro Oka ◽  
Tsuyoshi Murase ◽  
...  
Keyword(s):  
Distal Radius ◽  
Reference Point ◽  
Preoperative Planning ◽  
Three Dimensional ◽  
Reference Points ◽  
Distal Radius Fractures ◽  
Radius Fractures ◽  
3D Images ◽  
Radial Inclination ◽  
Preoperative Plan

Abstract Background Three-dimensional preoperative planning was applied for the osteosynthesis of distal radius fractures. The objective of this study was to evaluate the reproducibility of three-dimensional preoperative planning for the osteosynthesis of distal radius fractures with three-dimensional reference points. Methods Sixty-three wrists of 63 distal radius fracture patients who underwent osteosynthesis with three-dimensional preoperative planning were evaluated. After taking preoperative CT scans of the injured wrists, 3D images of the distal radius were created. Fracture reduction, implants choices, and placements simulation were performed based on the 3D images. One month after the surgery, postoperative CT images were taken. The reproducibility was evaluated with preoperative plan and postoperative 3D images. The images were compared with the three-dimensional coordinates of radial styloid process, volar and dorsal edges of sigmoid notch, and the barycentric coordinates of the three reference points. The reproducibility of the preoperative plan was evaluated by the distance of the coordinates between the plan and postoperative images for the reference points. The reproducibility of radial inclination and volar tilt on three-dimensional images were evaluated by intra-class correlation coefficient (ICC). Results The distances between the preoperative plan and the postoperative reduction for each reference point were (1) 2.1±1.3 mm, (2) 1.9±1.2 mm, and (3) 1.9±1.2 mm, respectively. The distance between the preoperative plan and postoperative reduction for the barycentric coordinate was 1.3±0.8 mm. ICCs were 0.54 and 0.54 for the volar tilt and radial inclination, respectively (P<0.01). Conclusions Three-dimensional preoperative planning for the osteosynthesis of distal radius fracture was reproducible with an error of about 2 mm for each reference point and the correlations of reduction shapes were moderate. The analysis method and reference points may be helpful to understand the accuracy of reductions for the three-dimensional preoperative planning in the osteosynthesis of distal radius fractures. Trial registration Registered as NCT02909647 at ClinicalTrials.gov

Sign in / Sign up

Export Citation Format

Share Document