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Replacement

The knee joint endures more load across it than any other joint in the human body and can develop wear and tear loss of cartilage commonly referred to as osteoarthritis which is the most common form of arthritis, affecting nearly 2 million Australians. Depending on the severity of the arthritis and the patient’s symptoms, it may be appropriate to consider replacing the knee with a prosthetic device or knee replacement. If a knee replacement resurfaces both the inside (medial compartment) and the outside (lateral compartment) parts of the knee with or without resurfacing the patella (patellofemoral compartment), it is considered a total knee replacement (TKR). If just one compartment is replaced, it is known as a unicompartmental knee replacement (UKR). If patients have significant bone loss (severe arthritis, previous trauma or surgery) or pronounced deformity with poorly functioning ligaments, a more complex knee replacement prosthesis (complex primary TKR) may be required. Similarly, when an existing knee replacement fails and needs revision, the revision replacement (revision TKR) often will require metallic augments and long stems to allow for stable fixation and correct alignment and possibly a more constrained plastic liner or hinged articulation to provide a stable knee joint. If a knee replacement is being revised for infection, it will usually be done in at least two stages with one operation for removal of the knee replacement and infected tissue and implantation of a temporary knee replacement spacer impregnated with antibiotics, and another operation to re-replace the knee replacement, after a period of antibiotic therapy and eradication of the infection.

  • UKRHERO

    TIBIOFEMORAL PARTIAL KNEE REPLACEMENT – OXFORD UKR

    The medial or inner most compartment of the knee is the most commonly worn and symptomatic part of the human knee. The medial compartment will often develop a pattern of wear and tear affecting the front (anterior) and inside ...

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  • avon her

    PATELLOFEMORAL PARTIAL KNEE REPLACEMENT – AVON UKR

    Patients with severe arthritis affecting the front part of the knee, known as the patellofemoral joint (PFJ), including the patella and/or trochlea, usually experience frontal discomfort, a grinding sensation and/or noise ...

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  • totalhero

    STANDARD TOTAL KNEE REPLACEMENT – PRIMARY TKR

    The majority of patients with symptomatic knee arthritis (three out of every four), will have at least two of the three compartments (medial tibiofemoral, lateral tibiofemoral, patellofemoral) involved and will require consideration ...

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  • complex hero

    COMPLEX TOTAL KNEE REPLACEMENT – COMPLEX TKR

    Where patients have a painful arthritic knee with other conditions near or involving the knee joint, such as an old fracture of the lower femur or upper tibia which healed in a deformed or malunited position, or previous surgery ...

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  • aseptic hero

    ASEPTIC REVISION REPLACEMENT – NON INFECTED REVISION TKR

    Knee replacements can fail for a number of reasons but most commonly due to loosening of components over a long period of time, resulting in a recurrence of pain and swelling. Other reasons for revision of a knee replacement include ...

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  • infected hero

    SEPTIC REVISION REPLACEMENT – INFECTED REVISION TKR

    In general terms, the likelihood of developing a deep infection in the knee following a knee replacement is low, with less than 1% developing a deep infection. There are some patient specific risk factors such as; diabetes, smoking, ...

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