Knee Osteoarthritis: AI Imaging Assessment
Upload knee MRI or X-rays for AI-powered osteoarthritis grading and cartilage assessment. Kellgren-Lawrence and Outerbridge grading included.
Overview
Knee osteoarthritis (OA) is a degenerative joint disease characterized by progressive cartilage loss, subchondral bone changes, and osteophyte formation. Imaging plays a crucial role in grading severity and monitoring progression. Our AI consortium evaluates both MRI and X-ray studies, providing Kellgren-Lawrence grading on radiographs and detailed Outerbridge cartilage grading on MRI. The multi-model analysis identifies compartmental involvement, subchondral changes, and associated findings like meniscal degeneration and ligament laxity.
Common Symptoms
- Gradual onset of knee pain, worse with activity
- Morning stiffness lasting less than 30 minutes
- Crepitus or grinding sensation during movement
- Progressive loss of range of motion
- Knee swelling after prolonged activity
- Pain going up or down stairs
- Visible joint deformity (varus or valgus alignment)
Key Imaging Findings
- Joint space narrowing on weight-bearing radiographs
- Marginal osteophyte formation at joint margins
- Subchondral sclerosis (increased bone density below cartilage)
- Subchondral cyst formation
- Cartilage thinning or full-thickness loss on MRI
- Bone marrow edema pattern (bone bruise-like changes) on MRI
- Meniscal degeneration and extrusion
Frequently Asked Questions
What is Kellgren-Lawrence grading?
Kellgren-Lawrence (KL) is a radiographic grading system for knee OA: Grade 0 (normal), Grade 1 (doubtful narrowing, possible osteophytes), Grade 2 (definite osteophytes, possible narrowing), Grade 3 (moderate osteophytes, definite narrowing, some sclerosis), Grade 4 (large osteophytes, marked narrowing, severe sclerosis, bone deformity). Our AI provides KL grading on knee X-rays.
Is MRI or X-ray better for evaluating knee arthritis?
Both have roles. Weight-bearing X-rays are the standard for grading severity (Kellgren-Lawrence). MRI provides detailed cartilage assessment (Outerbridge grading), detects early changes invisible on X-ray, and shows associated soft tissue findings. Our AI analyzes both modalities when available.
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Upload your MRI or X-ray DICOM files for private, AI-powered analysis. 4 models analyze independently â all data stays in your browser.
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Medical Disclaimer: This page is for informational and educational purposes only. It does not constitute medical advice, diagnosis, or treatment. AI-generated analysis may contain errors. Always consult a qualified healthcare professional for medical decisions. Full Disclaimer