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Development and assessment of a digital X-ray software tool to determine vertebral rotation in adolescent idiopathic scoliosis
- Source :
- Spine Journal, 17(2), 260-265. Elsevier, The Spine Journal, 17(2), 260-265. Elsevier Science, The Spine Journal, 17(2), 260-265. Elsevier Inc.
- Publication Year :
- 2017
-
Abstract
- BACKGROUND CONTEXT: The amount of vertebral rotation in the axial plane is of key importance in the prognosis and treatment of adolescent idiopathic scoliosis (AIS). Current methods to determine vertebral rotation are either designed for use in analogue plain radiographs and not useful in digital images, or lack measurement precision and are therefore less suitable for the follow-up of rotation in AIS patients.PURPOSE: This study aimed to develop a digital X-ray software tool with high measurement precision to determine vertebral rotation in AIS, and to assess its (concurrent) validity and reliability.STUDY DESIGN/SETTING: In this study a combination of basic science and reliability methodology applied in both laboratory and clinical settings was used.METHODS: Software was developed using the algorithm of the Perdriolle torsion meter for analogue AP plain radiographs of the spine. Software was then assessed for (1) concurrent validity and (2) intra-and interobserver reliability. Plain radiographs of both human cadaver vertebrae and outpatient AIS patients were used. Concurrent validity was measured by two independent observers, both experienced in the assessment of plain radiographs. Reliability-measurements were performed by three independent spine surgeons.RESULTS: Pearson correlation of the software compared with the analogue Perdriolle torsion meter for mid-thoracic vertebrae was 0.98, for low-thoracic vertebrae 0.97 and for lumbar vertebrae 0.97. Measurement exactness of the software was within 5 degrees in 62% of cases and within 10 degrees in 97% of cases. Intraclass correlation coefficient (ICC) for inter-observer reliability was 0.92 (0.91-0.95), ICC for intra-observer reliability was 0.96 (0.94-0.97).CONCLUSIONS: We developed a digital X-ray software tool to determine vertebral rotation in AIS with a substantial concurrent validity and reliability, which may be useful for the follow-up of vertebral rotation in AIS patients. (C) 2015 Elsevier Inc. All rights reserved.
- Subjects :
- medicine.medical_specialty
Adolescent
Rotation
Intraclass correlation
Concurrent validity
Scoliosis/diagnostic imaging
Validity
Lumbar vertebrae
Scoliosis
Radiography, Thoracic/methods
03 medical and health sciences
symbols.namesake
0302 clinical medicine
Software
Vertebral rotation
Medicine
Humans
Orthopedics and Sports Medicine
Orthodontics
Observer Variation
030222 orthopedics
Thoracic/methods
business.industry
Reproducibility of Results
Spine/diagnostic imaging
medicine.disease
Prognosis
Reliability
Spine
Pearson product-moment correlation coefficient
EVOLUTION
Radiography
medicine.anatomical_structure
symbols
Radiography, Thoracic
Surgery
Neurology (clinical)
Radiology
business
030217 neurology & neurosurgery
Subjects
Details
- Language :
- English
- ISSN :
- 15299430
- Volume :
- 17
- Issue :
- 2
- Database :
- OpenAIRE
- Journal :
- Spine Journal
- Accession number :
- edsair.doi.dedup.....f89a589e209a2779d7dbd93a2f65a153