A partial knee replacement (or unicompartmental knee replacement) replaces one side of the knee with a metal and plastic implant.


Knee replacement and the concept of compartments

Where the bones articulate in the knee is called a 'compartment' - the two articulations of tibia and femur are called the medial and lateral compartments, while the articulation of patella and femur are called the patellofemoral compartment. Replacing the joint of any of these compartments is called a 'partial' or 'uni-compartmental' knee replacement.

partial knee replacement    
Tibiofemoral partial knee replacement, replacing one compartment of the joint.    
Unicompartmental knee replacement
Unicompartmental arthroplasty

Partial knee replacement

Replacing just one compartment with artificial components.

An 'interpretation' of a 2005 publication presenting the results of studies to determine whether age was a determinant of success of partial knee replacement using the Oxford prosthesis.

An 'interpretation' of an article published in 1998 describing the early outcomes of a particular partial knee replacement - the 'Oxford' unicompartmental prosthesis.



Unicompartmental knee arthroplasty. Rodríguez-Merchán EC and Gómez-Cardero P. EFORT Open Rev. 2018 Jun; 3(6): 363–373.

See also -

Knee arthritis interventions when you are too young for a total knee replacement - ebook