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Grading Osteoarthritic Changes of the Zygapophyseal Joints from Radiographs: A Reliability Study
Grading Osteoarthritic Changes of the Zygapophyseal Joints from Radiographs: A Reliability Study
- Source :
- Journal of Manipulative and Physiological Therapeutics. 38:344-351
- Publication Year :
- 2015
- Publisher :
- Elsevier BV, 2015.
-
Abstract
- Objective This study tested the reliability of a 5-point ordinal scale used to grade the severity of degenerative changes of zygapophyseal (Z) joints on standard radiographs. Methods Modifications were made to a Kellgren grading system to improve agreement for grading the severity of osteoarthritic changes in lumbar Z joints. These included adding 1 grade of no degeneration, multiple radiographic views, and structured examiner training. Thirty packets of radiographic files were obtained, which included representation of all 5 grades including no degeneration (0) and Kellgren's 4-point (1-4) joint degeneration classification criteria. Radiographs were digitized to create a radiographic atlas that was given to examiners for individual study and blinded evaluation sessions. Intrarater and interrater agreement was determined by weighted κ ( κ w ) from the examination of 79 Z joints (25 packets). Results Using the modified scale and after training, examiners demonstrated a moderate-to-substantial level of interrater agreement ( κ w = 0.57, 0.60, and 0.68). Intrarater agreement was moderate ( κ w = 0.42 and 0.54). Conclusions The modified Kellgren 5-point grading system provides acceptable intrarater and interrater reliability when examiners are adequately trained. This grading system may be a useful method for future investigations assessing radiographic osteoarthritis of the Z joints.
- Subjects :
- musculoskeletal diseases
medicine.medical_specialty
Radiography
Zygapophyseal Joint
Lumbar vertebrae
Osteoarthritis
Severity of Illness Index
Article
Lumbar
Reliability study
Humans
Medicine
Arthrography
Grading (education)
Orthodontics
business.industry
Reproducibility of Results
medicine.disease
Inter-rater reliability
medicine.anatomical_structure
Physical therapy
Chiropractics
Joint Diseases
Tomography, X-Ray Computed
business
Subjects
Details
- ISSN :
- 01614754
- Volume :
- 38
- Database :
- OpenAIRE
- Journal :
- Journal of Manipulative and Physiological Therapeutics
- Accession number :
- edsair.doi.dedup.....9b908f506d8b96e4f201326c2454810c
- Full Text :
- https://doi.org/10.1016/j.jmpt.2014.12.009