Kellgren-Lawrence grading
Trauma and orthopaedics
Also known as: Kellgren-Lawrence-Klassifikation (Arthrose) · Kellgren-Lawrence sınıflaması (osteoartrit) · Kellgren-Lawrence grading (radiographic osteoarthritis)
What it is for
Five-grade radiographic grading of osteoarthritis (most often of the knee, also hip and hand) based on osteophytes, joint space narrowing, subchondral sclerosis and bone-end deformity.
Classification
| Category | Description |
|---|---|
| Grade 0 (none) | no radiographic features of osteoarthritis. |
| Grade 1 (doubtful) | doubtful joint space narrowing, possible osteophytic lipping. |
| Grade 2 (minimal) | definite osteophytes, possible joint space narrowing. |
| Grade 3 (moderate) | moderate multiple osteophytes, definite joint space narrowing, some sclerosis, possible bone-end deformity. |
| Grade 4 (severe) | large osteophytes, marked joint space narrowing, severe sclerosis, definite bone-end deformity. |
| Threshold | radiographic osteoarthritis is usually defined as grade 2 or higher. |
Source
Radiological assessment of osteo-arthrosis
Ann Rheum Dis 1957;16:494–502 (Kellgren JH, Lawrence JS)
DOI: 10.1136/ard.16.4.494
PMID: 13498604
- Edition
- Kellgren & Lawrence 1957 (grade descriptions as commonly used today)
- Checked on
Summary of the published classification in our own words. Not a substitute for the original publication.
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