(Fig 5-D.25) Excessive Remodeling of Unresurfaced Patella After TKA

https://youtu.be/lg5hMQm_36s

 

https://youtu.be/POoP1plqOoI

 

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📌 Excessive Remodeling of Non-Resurfaced Patella in TKA

 

• The non-resurfaced patella becomes exposed to the metallic surface of the femoral component after TKA.
• Excessive remodeling can cause anterior knee pain

 

✅ Adaptation Process

• Also known as stress contouring
• Produces gradual adaptation of the retropatellar surface and subchondral bone plate to the trochlear shape

• Due to differences in the modulus of elasticity
• The articular surface of the patella must adapt to the geometry of the opposing surface

 

Reference

AJR 2014; 202:W76–W86

 

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#TKA, #Patella, #Remodeling, #KneeArthroplasty, #AnteriorKneePain, #BiologicRemodeling, #StressContouring, #OrthopedicSurgery, #JointReplacement, #KneeBiomechanics