The reliability and prognostic implications of a simplified bone age classification system for adolescent idiopathic scoliosis

L Dolan; K Masrouha; G El-Khoury; S Weinstein

doi:10.1186/1748-7161-7-S1-O14

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The reliability and prognostic implications of a simplified bone age classification system for adolescent idiopathic scoliosis

Journal article

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The reliability and prognostic implications of a simplified bone age classification system for adolescent idiopathic scoliosis

L Dolan, K Masrouha, G El-Khoury and S Weinstein

Scoliosis, Vol.7(Suppl 1), pp.O14-O14

01/27/2012

DOI: 10.1186/1748-7161-7-S1-O14

PMCID: PMC3305081

PMID: 22376598

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https://doi.org/10.1186/1748-7161-7-S1-O14View

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Abstract

Background Sanders et al. [1, 2] describe a simplified system for determining digital skeletal age (DSA) and its use in predicting the likelihood a curve will reach surgical magnitude. We assessed the inter-and intra-rater reliability and prognostic implications of this classification system using data from a multicenter trial of outcomes in AIS (BrAIST). Material and methods 36 subjects were randomly selected. We determined the predicted prognosis by cross-classifying the DSA and Cobb angle using Sanders’ estimates. Results Kappa coefficients ranged from 0.76 to 0.88. For example, one rater’s reading corresponded to a 0% risk of the curve reaching surgical magnitude, while the other rater’s reading for the same subject corresponded to a 92% risk. The high level of agreement in DSA found by Sanders et. al was replicated in this study, and would be considered “substantial” to “almost perfect” using widely applied standards [3] Despite this agreement, different prognoses were predicted for 11% of these subjects. Conclusions Clinicians and researchers should consider seeking a second review of the DSA (especially if it appears to be in the DSA 2 to 3 range), and the Cobb angle, prior to using it to make prognostic predictions and treatment decisions.

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Title: Subtitle: The reliability and prognostic implications of a simplified bone age classification system for adolescent idiopathic scoliosis
Creators: L Dolan - University of Iowa, Department of Orthopaedic Surgery, Iowa City, IA 52242-1007, USA
K Masrouha - University of Iowa, Department of Orthopaedic Surgery, Iowa City, IA 52242-1007, USA
G El-Khoury - University of Iowa, Department of Radiology, Iowa City, USA
S Weinstein - University of Iowa, Department of Orthopaedic Surgery, Iowa City, IA 52242-1007, USA
Resource Type: Journal article
Publication Details: Scoliosis, Vol.7(Suppl 1), pp.O14-O14
DOI: 10.1186/1748-7161-7-S1-O14
PMID: 22376598
PMCID: PMC3305081
NLM abbreviation: Scoliosis
ISSN: 1748-7161
eISSN: 1748-7161
Publisher: BioMed Central
Language: English
Date published: 01/27/2012
Academic Unit: Radiology; Stead Family Department of Pediatrics; Orthopedics and Rehabilitation
Record Identifier: 9984040358702771

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