Computerized Measurement on Angular Parameters for Hallux Valgus: Comparison of 100% and 150% Magnified Digital Radiography / 대한족부족관절학회지
Journal of Korean Foot and Ankle Society
; : 53-57, 2012.
Article
in Korean
| WPRIM (Western Pacific)
| ID: wpr-94396
Responsible library:
WPRO
ABSTRACT
PURPOSE:
To study computerized measurements of angular parameters on 100% and 150% resized digital radiography of hallux valgus deformity. MATERIALS ANDMETHODS:
30 digital radiography of standing foot anteroposterior view of hallux valgus patients were included. Two observers(A, B) independently measured hallux valgus angle (HVA), 1-2 intermetatarsal angle (IMA), and distal metatarsal articular angle (DMAA) in two times on both 100%-size and 150% magnified images respectively, using computerized measurement software tools. The results were interpreted with the statistical software program, Statistical Analysis System, version 9.2.RESULTS:
In repeated measurements of each observer, measurements on 150% magnified image showed no differences of all three parameters and with 100%-size image, there were differences of HVA (observer A) and 1-2 IMA (observer B) (p>0.05). When testing interobserver reliability, both observers showed differences in measurement of HVA and DMAA (p<0.05), but no differences in measurement of 1-2 IMA in both images. Within the 95% confidence interval, limits of error of measurements between two observers on HVA, IMA and DMAA were 2.7degrees 1.4degrees and 5.0degrees respectively in 100%-size images, and 2.6degrees, 1.6degrees and 4.7degrees respectively in 150% magnified images.CONCLUSION:
In computerized measurements for angular parameters of hallux valgus with digital radiography, 150% magnified images showed intraobserver reliability. Both 100% and 150% magnified images failed to show interobserver reliability. Measurement of 1-2 IMA in both 100% and 150% images showed less interobserver error.
Full text:
Available
Database:
WPRIM (Western Pacific)
Main subject:
Dihydrotestosterone
/
Azasteroids
/
Software
/
Metatarsal Bones
/
Hallux
/
Hallux Valgus
/
Radiographic Image Enhancement
/
Foot
Limits:
Humans
Language:
Korean
Journal:
Journal of Korean Foot and Ankle Society
Year:
2012
Document type:
Article