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KNEE

The knee joint, which appears like a simple hinge-joint, is one of the most complex joints in the body.

The knee joint is made up of the femur (thigh bone), tibia (lower leg bone) and patella (the kneecap). All these bones are lined with articular cartilage (surface cartilage). This articular cartilage acts like a shock absorber and allows a smooth, low friction surface for the knee to move on. Between the tibia and femur lie two floating cartilages called menisci. The medial (inner) meniscus and the lateral (outer) meniscus rest on the tibial surface cartilage and are mobile. The menisci also act as shock absorbers and stabilizers. The knee is stabilized by ligaments that are both inside and outside the joint. The medial and lateral collateral ligaments support the knee from excessive side to side movement. The (internal) anterior and posterior cruciate ligaments support the knee from buckling and giving way. The knee joint is surrounded by a capsule (envelope) that produces a small amount of synovial (lubricating) fluid to help with smooth motion. Thigh muscles are important secondary knee stabilizers.

We tend to ignore our knees until something happens to them that causes pain. If we take good care of our knees now, before there is a problem, we can really help ourselves. In addition, if some problems with the knees develop, an exercise program can be extremely beneficial. To understand the functions, conditions, surgeries & procedures of the knee better, we have included an interactive animated presentation.

Click on the topics below to go the desired section

:: Knee anatomy
:: Knee arthritis
:: Total Knee Replacement
:: Knee Arthroscopy
:: ACL Reconstruction
:: Robotic Assist Bicompartmental Knee Resurfacing
:: Robotic Assist Unicompartmental Knee Resurfacing


Normal anatomy of the Knee Joint

How does the Knee joint work? Find out more in this web based movie.

        




Arthritis of the Knee joint

The term arthritis literally means inflammation of a joint, but is generally used to describe any condition in which there is damage to the cartilage.

Click here to go to the section on arthritis.




Total Knee Replacement

A total knee replacement (TKR) or total knee arthroplasty is a surgery that resurfaces an arthritic knee joint with artificial metal or plastic replacement parts called the ‘prostheses'.

Doctors may recommend surgery for people suffering from severe arthritis in the knee to decrease the pain and to improve the patient's ability to walk.

Find out more about Total Knee Replacement from the following links.

Total Knee Replacement
Interactive Movie Text version Patient Info Handout




Arthroscopy of the knee joint.

Arthroscopy is a surgical procedure in which an arthroscope is inserted into a joint. Arthroscopy is a term that comes from two Greek words "arthro", meaning "joint" and "skopein", meaning to "examine".

The benefits of arthroscopy involve smaller incisions, faster healing, a more rapid recovery, and less scarring. Arthroscopic surgical procedures are often performed on an outpatient basis and the patient is able to return home on the same day.

Find out more about Knee Arthroscopy from the following links.

Knee Arthroscopy
Interactive Movie Text version Patient Info Handout




ACL reconstruction

The anterior cruciate ligament is one of the major stabilising ligaments in the knee. It is a strong rope like structure located in the centre of the knee running from the femur to the tibia. When this ligament tears unfortunately it doesn’t heal and often leads to the feeling of instability in the knee.

ACL reconstruction is a commonly performed surgical procedure and with recent advances in arthroscopic surgery can now be performed with minimal incisions and low complication rates.

ACL Reconstruction Hamstring tendon.

Interactive Movie Text version Patient Info Handout


ACL Reconstruction Patellar tendon.

Interactive Movie Text version Patient Info Handout


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