The sphericity deviation score: a quantitative radiologic outcome measure of Legg-Calvé Perthes disease applicable at the stage of healing and at skeletal maturity.

Details

Serval ID
serval:BIB_6BA8581D139B
Type
Article: article from journal or magazin.
Collection
Publications
Title
The sphericity deviation score: a quantitative radiologic outcome measure of Legg-Calvé Perthes disease applicable at the stage of healing and at skeletal maturity.
Journal
Journal of pediatric orthopedics
Author(s)
Siddesh N.D., Shah H., Tercier S., Pai H., Nair S., Joseph B.
ISSN
1539-2570 (Electronic)
ISSN-L
0271-6798
Publication state
Published
Issued date
2014
Peer-reviewed
Oui
Volume
34
Number
5
Pages
522-528
Language
english
Notes
Publication types: Journal Article ; Research Support, Non-U.S. Gov't
Publication Status: ppublish
Abstract
This study aimed to determine if a new measure of sphericity of the femoral head, the Sphericity Deviation Score (SDS), could be estimated reliably at the stage of healing of Legg-Calvé-Perthes disease (LCPD) and to determine if the SDS at the healing stage reflects the outcome at skeletal maturity.
The SDS was measured with image analysis software on radiographs of 120 children with unilateral LCPD at healing of the disease and at skeletal maturity. The reproducibility of measurement was assessed. SDS values for hips in different Stulberg classes were calculated. On the basis of SDS values at healing of 82 children, a logistic regression model was developed to determine the probability of a good outcome at skeletal maturity. The validity of the model was tested on another 38 children.
The SDS values at the stage of healing and at skeletal maturity were comparable. The SDS values were lowest for Stulberg Class I hips and highest for Class IV and V hips. The validated regression model showed a very high probability of a good outcome (Stulberg Class I or II) at skeletal maturity if the SDS at the stage of healing was below 10.
A reliable estimate of the outcome of LCPD at skeletal maturity can be made by computing the SDS as soon as the disease heals.

Keywords
Adolescent, Age Determination by Skeleton, Child, Child, Preschool, Female, Femur Head/diagnostic imaging, Humans, Image Processing, Computer-Assisted, Legg-Calve-Perthes Disease/diagnostic imaging, Legg-Calve-Perthes Disease/physiopathology, Male, Observer Variation, Outcome Assessment (Health Care), Reproducibility of Results, Wound Healing, Young Adult
Pubmed
Create date
14/06/2013 9:26
Last modification date
20/08/2019 15:25
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