Knee Relacement



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KNEE JOINT:

The knee joint is the joint between the femur (thigh bone) and tibia (leg bone) and also the patella (kneecap).  The surface of these bones are covered with special cartilage called the articular cartilage.  The smooth surface of the articular cartilage along with the natural lubrication allows smooth gliding movement of the joint surface.







ARTHRITIS OF THE KNEE:

Knee arthritis is very common and mainly results from wear and tear called osteoarthritis or degeneration.  The knee joint can also be affected by inflammatory arthritis such as rheumatoid arthritis and gout etc.  







SYMPTOMS AND SIGNS:

Patients complain of pain particularly on weight bearing and walking.  They also find the knee to be swollen and visible deformity develops in the later stages.  The patient’s knee becomes stiff and they struggle to walk, climb stairs and carry out other activities of daily living.  







ASSESSMENT:

After a careful history, the knee is clinically examined.  In most cases a plain x-ray of the knee particularly on weight bearing position provides the appropriate diagnosis.  In some cases, particularly when patients have mechanical symptoms such as locking, jamming, catching and giving way an MRI scan may be helpful.  



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