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📷 X-ray Changes in Knee Arthritis - X-rays remain the gold standard for diagnosing and monitoring knee #osteoarthritis changes. While they may look like simple black and white images, radiographs tell an important story about your joint health. Key radiographic changes to watch include: - Joint space narrowing - showing where #kneecartilage has worn away between bones - Osteophytes (bone spurs) - bony projections that form along joint margins - Subchondral sclerosis - increased bone density under damaged cartilage - Bone cysts - fluid-filled cavities that develop as the condition progresses . Knee arthritis typically follows predictable patterns on x-ray: - Early changes often begin in the medial (inner) compartment - Standing "weight-bearing" views best show actual joint space loss - Special angles/views help detect early cartilage wear - Alignment issues can be assessed that may affect progression #kneearthritis While MRI provides detailed soft tissue imaging, standard x-rays remain crucial for: ✓ Initial diagnosis ✓ Disease staging ✓ Monitoring progression ✓ Surgical planning Important note: X-ray changes don't always match symptoms. Some people with severe radiographic arthritis have minimal pain, while others with mild changes experience significant discomfort. Understanding your knee x-rays helps inform treatment decisions + track changes over time. Priority is to work w/ your healthcare provider to interpret what your images reveal about your joint health. . 👇 How many X-rays have you had? SHARE your experience & tips #kneexray #Radiology

Quick Knee X-ray Challenge 1️⃣ What is knee arthritis? THIS 75yo w/ chronic knee pain X-ray: Marked, predominantly medial joint space narrowing + subchondral sclerosis; periarticular osteophyte formation. Secondary varus deformity. Typical of advanced (Kellgren-Lawrence grade III) knee joint #osteoarthritis [Bálint Botz, Radiopaedia.org] 2️⃣ Osteochondroma 25 yo w/ swelling of RT lower thigh X-ray: Growth on medial aspect of distal. Knee joint normal. Proximal ends of tibia/fibula appear normal. [Aditya Shetty, Radiopaedia.org] Did you know? Osteochondroma can present at any age and accounts for 10% of all bone tumors (20% of benign bone tumors). Differential diagnosis: ossifying hematoma, juxtacortical chondroma 3️⃣ Osteoporosis X-ray: increased radiolucency (appears more transparent), decreased bone density, cortical thinning (bone outer layer or cortex becomes thinner), loss of trabeculae (trabeculae or honeycomb-like structure within bones become less dense) FYI - osteoporosis itself does NOT directly cause joint pain, but can increase fracture risk + indirectly lead to pain in certain areas like spine due to compression fractures (can manifest as back pain) 4️⃣ Osteomyelitis 4yo male w/ LT #kneepain X-ray: Lucent lesion in the lateral aspect of the left distal femoral epiphysis. Small joint effusion [Townsville radiology training, Radiopaedia.org] 5️⃣ Osteosarcoma 12yo male w/ painful mass in lower LT femur X-ray: bone tumor with wide zone of transition, osteoid matrix + aggressive periosteal reaction at distal femur [Osama Hussein Yonso, Radiopaedia.org] Osteosarcoma is 2nd most common primary #bonetumor after multiple myeloma Primary osteosarcoma: typically in younger (10-20 yrs), 75% occurring <20yo Secondary osteosarcoma: occurs in elderly, usually secondary to malignant degeneration of Paget disease, extensive bone infarcts or post-radiotherapy for other conditions. Differential considerations include : Osteomyelitis, Ewing sarcoma . 👇 Which condition is most common? Which is most painful? SHARE your #kneexray