Radiographic grading for knee osteoarthritis. A revised scheme that relates to alignment and deformity.

Document Type

Article

Abstract

OBJECTIVE: To develop a radiographic grading scheme for osteoarthritis of the knee that would relate to arthritic progression and deformity.

METHODS: The scheme of Scott, et al was revised to include new fields of Tibial Erosion and Subluxation; the fields of Tibial Osteophytes and Sclerosis were removed. The worst affected compartment only was scored on frontal Standardized Knee Images, which were used to define knee alignment variables.

RESULTS: The interreader reliability (kappa = 0.92) and correlation for total scores (r = 0.94) were both excellent (p < 0.001). Individual field scores and total knee scores both correlated well with most limb alignment variables, especially the hip-knee-ankle angle (r = 0.77, p < 0.001).

CONCLUSION: These findings encourage further evaluations for outcome measurement, diagnostic sensitivity, and sensitivity to define arthritic change over time.

Keywords

Arthroscopy, Biomechanical Phenomena, Disease Progression, Female, Humans, Joint Dislocations, Knee Joint, Male, Middle Aged, Observer Variation, Osteoarthritis, Knee, Radiography, Reproducibility of Results, Single-Blind Method, Tibia

Medical Subject Headings

Arthroscopy; Biomechanical Phenomena; Disease Progression; Female; Humans; Joint Dislocations; Knee Joint; Male; Middle Aged; Observer Variation; Osteoarthritis, Knee; Radiography; Reproducibility of Results; Single-Blind Method; Tibia

Publication Date

3-1-1999

Publication Title

The Journal of rheumatology

ISSN

0315-162X

Volume

26

Issue

3

First Page

641

Last Page

644

PubMed ID

10090176

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