In a partial knee replacement (unicompartmental knee arthroplasty), only the damaged compartment of your knee is replaced, retaining the healthy compartments. This enables you to retain more of your natural bone, tissue and ligaments.
Your knee is divided into three compartments: medial (inside part), lateral (outside part) and patellofemoral (under the kneecap). The medial compartment is most commonly affected by arthritis and is the one most commonly replaced.
A partial knee replacement is less invasive, which may afford you a faster recovery, less time in the hospital, and a more active function than with a total knee replacement. Only some patients, however, may be suitable for a partial knee replacement as most patients have two or more areas that are damaged or diseased. A total knee replacement is the best solution for these patients.
Advantages of Partial Knee Replacement
Many studies show good to excellent results for the majority of patients that have a unicompartmental knee replacement, if chosen for the correct indications.
The potential advantages of partial knee replacement over total knee replacement include:
- Quicker recovery
- Less pain after surgery
- Less blood loss
- Better range of motion
- A more natural feeling knee
Disadvantages of Partial Knee Replacement
The main disadvantage of partial knee replacement compared with total knee replacement is the potential need for revision surgery. In particular, a total knee replacement may be necessary in the future if arthritis develops in the parts of the knee that have not been replaced.
The main disadvantage of partial knee replacement compared with total knee replacement is the potential need for revision surgery. In particular, a total knee replacement may be necessary in the future if arthritis develops in the parts of the knee that have not been replaced.
Candidates for Surgery
In order to be a candidate for unicompartmental knee replacement, your arthritis must be limited to one compartment of your knee and your knee ligaments should be functioning.
If you think you are an appropriate candidate, you can discuss the surgical options further with Mr Will Blakeney.
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WA Orthopaedic Consulting Rooms
Perth
St John of God
Medical Clinic
Suite 213
25 McCourt Street,
Subiaco WA 6008
Albany
Great Southern
Specialist Centre,
55 Cockburn Rd ,
Mira Mar WA 6330
Phone: 08 9489 8733
Email: blakeney@wcortho.com.au
Fax: 08 9489 8735
Perth Orthopaedic Operating Theatres
St John of God Hospital
12 Salvado Rd, Subiaco WA 6008



