(Fig 5-D.07) Polyethylene Wear-Induced Synovitis and Osteolysis

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📌 Polyethylene Wear-Induced Synovitis and Osteolysis

• Polyethylene wear-induced synovitis and osteolysis are significant complications that can occur following joint replacement surgery.

✅  Polyethylene Wear-Induced Synovitis

• Frond-like synovial proliferation 
• Dense synovial proliferation
• Debris with low-to-intermediate signal intensity
• Variable amounts of joint fluid and distention

 

✅  Polyethylene Wear-Induced Osteolysis

• Geographic pattern
• Particulate debris with intermediate signal intensity
• Replacement of normal periprosthetic trabecular bone and marrow fat

 

 ✅  Complications of Polyethylene Wear

• Bone Erosion: Occurs with increasing burden of intracapsular synovial proliferation and debris
• Neurovascular Compression: Formation of polyethylene granulomas and Focal expansion of the joint capsule
• Diagnostic Value: Sharp contrast resolution for accurate diagnosis and Allows segmentational quantitative volumetry for longitudinal monitoring

 

References

1. RadioGraphics 2015; 35:1483–1501

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