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Radiographic grading of the severity of knee osteoarthritis: relation of the Kellgren and Lawrence grade to a grade based on joint space narrowing, and correlation with arthroscopic evidence of articular cartilage degeneration
- Source :
- Arthritis and rheumatism. 34(11)
- Publication Year :
- 1991
-
Abstract
- We examined standing knee radiographs of 92 patients who had chronic knee pain and radiographic evidence of mild or moderate osteoarthritis (OA) according to the Kellgren and Lawrence (K/L) criteria. Because the K/L criteria overemphasize osteophytosis relative to joint space narrowing (JSN), we graded OA severity also with a scoring system that placed greater emphasis on JSN than on osteophytes. In each case, the articular cartilage was visualized directly at arthroscopy. Of 17 patients whose radiographic findings were normal by both the K/L criteria and our JSN-weighted criteria, 7 had advanced tibiofemoral and/or patellofemoral compartment changes of OA seen at arthroscopy, emphasizing the insensitivity of the radiograph for detecting early articular cartilage loss. In addition, tibiofemoral JSN was common in the presence of normal articular cartilage. The JSN-weighted scale provided no advantage over the K/L criteria for assessing the severity of articular cartilage changes of OA.
- Subjects :
- musculoskeletal diseases
Adult
Cartilage, Articular
Joint space narrowing
medicine.medical_specialty
Scoring system
Knee Joint
Radiography
Immunology
Articular cartilage
Osteoarthritis
Severity of Illness Index
Arthroscopy
Rheumatology
Severity of illness
medicine
Immunology and Allergy
Humans
Pharmacology (medical)
False Positive Reactions
Orthodontics
medicine.diagnostic_test
business.industry
Cartilage
Age Factors
Middle Aged
musculoskeletal system
medicine.disease
Surgery
medicine.anatomical_structure
business
Subjects
Details
- ISSN :
- 00043591
- Volume :
- 34
- Issue :
- 11
- Database :
- OpenAIRE
- Journal :
- Arthritis and rheumatism
- Accession number :
- edsair.doi.dedup.....c650bcb3c9219c9fbd5398e40b88ba79