ArticleWorld journal of orthopedics2025
Correlation between Kellgren-Lawrence classification of osteoarthritis and Knee Injury and Osteoarthritis Outcome Score.
Article in World journal of orthopedics, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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Who cites it
2 citing papers in PubMed.
- Characterizing symptom burden in knee osteoarthritis: the predominant role of Kellgren-Lawrence grade 4 in functional decline and pain severity.Rheumatology international · 2026Article
- Outcomes and short-term survivorship of fixed-bearing all-poly unicompartmental knee arthroplasty. A retrospective single-center study of 42 prostheses with a main follow-up of 32.3 months.Archives of orthopaedic and trauma surgery · 2026Article
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9 authors.
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Abstract
backgroundOsteoarthritis (OA) is a common degenerative joint disease that considerably affects the quality of life (QoL) of individuals, especially the elderly. The Kellgren-Lawrence (KL) grading system assesses the severity of OA through radiographic evaluation, whereas the Knee Injury and Osteoarthritis Outcome Score (KOOS) measures clinical symptoms and functional status.
aimTo analyze the relationship between KL grades and KOOS to elucidate the association between radiographic severity and clinical manifestations of knee OA.
methodsA cross-sectional study was performed at King Fahd Hospital of the University, involving 164 adult patients diagnosed with knee OA. Patients were evaluated using the KL system, based on standing knee X-rays performed within the last six months. The KOOS questionnaire was utilised for clinical assessment, evaluating five domains: (1) Pain; (2) Symptoms; (3) Activities of daily living; (4) Sport and recreation function; and (5) Knee-related QoL. Analysis of variance was utilised to examine variations in KOOS domain scores among different patient variables. The correlations between KOOS domains were determined using Pearson's correlation.
resultsKOOS scores demonstrated a significant decline in patients with elevated KL grades, with Grade 4 exhibiting the lowest scores and grade 1 the highest (
conclusionThe association between radiographic severity and clinical impact is shown by the substantial correlation between KL grading and KOOS results, especially in later stages of OA. The results highlight the necessity for thorough assessments that integrate radiographic and clinical evaluations for individualized therapy choices for OA patients.
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