What is Osteoarthritis ?


OA is the breakdown of articular cartilage, the firm gel-like tissue that covers the ends of your bones. The articular cartilage should not be confused with the meniscal cartilage, as sometimes both are called called “cartilage”. The articular cartilage starts to become thin, soft and takes on a “crab meat” appearance.  With early osteoarthritis, the knee starts to ache with impact loading activity such as running. As the OA progresses, the ache is constantly present, and worse with activity such as walking.  As it progresses it starts to interfere with most activities and sleep. Osteoarthritis treatment options include non-operative and operative management.  

What does osteoarthritis look like ?


This video demonstrates severe osteoarthritis, with all the articular surface of the knee worn done to bone.  Some small remmants of articular cartilage remain to the right. This patient required a partial knee replacement due to the severity of the pain. 


Osteoarthritis is characterised by aching pain with activity, and as it worsens, the pain also worsens.





This video demonstrates a normal knee articular surface.



The meniscus is the structure sitting between the femur and tibia near the metal probe. Its acts to spread the joint load and decrease contact stress.



Tears of the meniscus usually occur in isolation, due to softening & degeneration.


Preservation of the meniscus is vital to prevent later osteoarthritis.


Operative Options Osteoarthritishttp://www.kneesurgeons.com.au/Website/Procedures.html

Non-Operative Options Osteoarthritishttp://www.kneesurgeons.com.au/Website/Non-operative_Management_Osteoarthritis.html


This video demonstrates mild osteoarthritis, with only small areas of softening and fibrillation. This patient had some aching after running, but mostly had no pain. 




Osteoarthritis is thinning of the normal articular cartilage in the knee, starting with fissuring, fibrillation and ulceration.


Osteoarthritis

Dr Christopher Vertullo

 

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