
- The medial compartment (the inside part),
- The lateral compartment (the outside part) and
- The patellofemoral compartment (the front of the knee between the kneecap and thighbone).


Advantages:
The advantages of partial knee replacement include:- Much Quicker recovery as the patient starts walking almost immediately and is up and about his or her regular activities in practically no time.
- If both knees are involved, then the other knee also can be performed early or at the same setting, thus accelerating the recovery from both knees even earlier.
- Less pain after surgery as it is performed by a Minimally invasive technique and there is hardly any tissue trauma, during surgery.