Ultrasound findings in patients with knee osteoarthritis: Relationships with clinical characteristics, radiographic findings and generalized osteoarthritis

Objective: To evaluate the relationship between ultrasound (US) findings and radiographic Kellgren–Lawrence (K/L) grades, symptom severity, and the presence of generalized osteoarthritis (GOA) in patients with knee osteoarthritis (OA), and to identify key US parameters associated with OA severity. M...

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Main Authors: Ahmet Sumen, Kubra Neslihan Kurt Oktay
Format: Article
Language:English
Published: Elsevier 2025-09-01
Series:Osteoarthritis and Cartilage Open
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Online Access:http://www.sciencedirect.com/science/article/pii/S2665913125000925
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author Ahmet Sumen
Kubra Neslihan Kurt Oktay
author_facet Ahmet Sumen
Kubra Neslihan Kurt Oktay
author_sort Ahmet Sumen
collection DOAJ
description Objective: To evaluate the relationship between ultrasound (US) findings and radiographic Kellgren–Lawrence (K/L) grades, symptom severity, and the presence of generalized osteoarthritis (GOA) in patients with knee osteoarthritis (OA), and to identify key US parameters associated with OA severity. Methods: This cross-sectional study included 166 patients (332 knees) with radiographically confirmed knee OA. US assessments included medial and lateral meniscus extrusion (MME, LME), suprapatellar effusion, synovitis, femoral cartilage thickness (FCT), femoral cartilage lesions, Baker's cyst, pes anserine bursitis, patellar tendinopathy, and Hoffa's fat pad pathology. K/L grades were determined by radiography. Pain and function were evaluated using the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC). GOA was defined as OA in five or more joints or the presence of Heberden's nodes with additional joint involvement. Results: MME showed a strong correlation with K/L grade (r ​= ​0.954, p ​< ​0.001), with 91.57 ​% exact agreement. LME showed a moderate correlation (r ​= ​0.693, p ​< ​0.001). GOA was identified in 12.65 ​% of patients and was independently associated with lower BMI, reduced FCT (<2 ​mm), and the presence of femoral cartilage lesions. Moderate correlations were observed between K/L grade and pain, WOMAC scores, and symptom duration. Conclusion: MME and FCT measured by US are strong indicators of OA severity and may help identify patients at risk for GOA. US appears to be a practical, radiation-free tool for assessing and monitoring OA progression. Further validation in larger cohorts is recommended.
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spelling doaj-art-d633578e5e9944c1bcc677ebb820b89f2025-08-20T04:00:43ZengElsevierOsteoarthritis and Cartilage Open2665-91312025-09-017310065610.1016/j.ocarto.2025.100656Ultrasound findings in patients with knee osteoarthritis: Relationships with clinical characteristics, radiographic findings and generalized osteoarthritisAhmet Sumen0Kubra Neslihan Kurt Oktay1BAM Private Physical Medicine and Rehabilitation Clinic, Istanbul, TurkeyUniversity of Health Sciences, Haydarpasa Numune Training and Research Hospital, Department of Physical Medicine and Rehabilitation, Istanbul, Turkey; Corresponding author. Haydarpasa Numune Training and Research Hospital, Selimiye, Tibbiye Cd No:23, Uskudar, 34668, Istanbul, Turkey.Objective: To evaluate the relationship between ultrasound (US) findings and radiographic Kellgren–Lawrence (K/L) grades, symptom severity, and the presence of generalized osteoarthritis (GOA) in patients with knee osteoarthritis (OA), and to identify key US parameters associated with OA severity. Methods: This cross-sectional study included 166 patients (332 knees) with radiographically confirmed knee OA. US assessments included medial and lateral meniscus extrusion (MME, LME), suprapatellar effusion, synovitis, femoral cartilage thickness (FCT), femoral cartilage lesions, Baker's cyst, pes anserine bursitis, patellar tendinopathy, and Hoffa's fat pad pathology. K/L grades were determined by radiography. Pain and function were evaluated using the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC). GOA was defined as OA in five or more joints or the presence of Heberden's nodes with additional joint involvement. Results: MME showed a strong correlation with K/L grade (r ​= ​0.954, p ​< ​0.001), with 91.57 ​% exact agreement. LME showed a moderate correlation (r ​= ​0.693, p ​< ​0.001). GOA was identified in 12.65 ​% of patients and was independently associated with lower BMI, reduced FCT (<2 ​mm), and the presence of femoral cartilage lesions. Moderate correlations were observed between K/L grade and pain, WOMAC scores, and symptom duration. Conclusion: MME and FCT measured by US are strong indicators of OA severity and may help identify patients at risk for GOA. US appears to be a practical, radiation-free tool for assessing and monitoring OA progression. Further validation in larger cohorts is recommended.http://www.sciencedirect.com/science/article/pii/S2665913125000925Knee osteoarthritisUltrasoundKellgren–lawrenceMeniscus extrusionCartilage thicknessGeneralized osteoarthritis
spellingShingle Ahmet Sumen
Kubra Neslihan Kurt Oktay
Ultrasound findings in patients with knee osteoarthritis: Relationships with clinical characteristics, radiographic findings and generalized osteoarthritis
Osteoarthritis and Cartilage Open
Knee osteoarthritis
Ultrasound
Kellgren–lawrence
Meniscus extrusion
Cartilage thickness
Generalized osteoarthritis
title Ultrasound findings in patients with knee osteoarthritis: Relationships with clinical characteristics, radiographic findings and generalized osteoarthritis
title_full Ultrasound findings in patients with knee osteoarthritis: Relationships with clinical characteristics, radiographic findings and generalized osteoarthritis
title_fullStr Ultrasound findings in patients with knee osteoarthritis: Relationships with clinical characteristics, radiographic findings and generalized osteoarthritis
title_full_unstemmed Ultrasound findings in patients with knee osteoarthritis: Relationships with clinical characteristics, radiographic findings and generalized osteoarthritis
title_short Ultrasound findings in patients with knee osteoarthritis: Relationships with clinical characteristics, radiographic findings and generalized osteoarthritis
title_sort ultrasound findings in patients with knee osteoarthritis relationships with clinical characteristics radiographic findings and generalized osteoarthritis
topic Knee osteoarthritis
Ultrasound
Kellgren–lawrence
Meniscus extrusion
Cartilage thickness
Generalized osteoarthritis
url http://www.sciencedirect.com/science/article/pii/S2665913125000925
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