Mr Freedman - Orthopaedic Surgeon
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Partial Knee Replacement, also known as Unicompartmental Knee Arthroplasty or Knee Hemiarthroplasty is an orthopaedic surgical procedure which resurfaces just one aspect of the knee joint rather than the whole joint: i.e. either the inside half of the knee (medial compartment); outside part of the knee (lateral compartment); or the kneecap (patellofemoral) joint.
Partial Knee Replacement is best reserved for patients with localised damage in only one aspect of the knee.
The incision for unicompartmental replacement is smaller, a more limited aspect of the knee is operated on, blood loss is reduced, less bone is removed and recovery is usually quicker than from a total knee arthroplasty. Patient satisfaction is usually high.
New advanced technologies are now available to assist orthopaedic surgeons to reliably achieve accurate implantation of partial knee replacement prostheses.
These technologies include (i) use of Patient-Specific Instruments and (ii) use of Robotic-assisted surgery. The most commonly used robotic platform is called “Mako” and therefore some people will refer to a partial knee replacement performed with the Mak robot as a “Makoplasty”procedure.
In Patient-Specific Instrument (PSI) Partial knee replacement, a three dimensional scan of the patient’s knee is performed. The scan is then sent (electronically) to Europe where the images are computer modelled and then a 3-D mould of the knee is printed on a high grade medical 3-D printer.
Patient-specific instruments are then be designed to fit the 3D printed model and are then be sent to Australia for your surgery. Use of pre-operative 3-D planning facilitates accurate and reliable surgery.
When strict selection criteria are followed, the results for partial knee replacement are generally very good. To be a candidate for partial knee replacement a patient requires:
(1) Minimal deformity of the knee joint
(2) A sufficient range of motion
(3) An intact anterior cruciate ligament
(4) Absence of inflammatory arthritis
(5) Isolated wear of only1 knee compartment
To discuss whether partial knee replacement is an option for you and/or to discuss the various new technologies available for parital knee replacement with Mr Freedman please contact our office for an appointment:
Tel (03) 9532 3333
At your consultation Mr Freedman will assess your knee symptoms and scans will and advise you as to whether you are a suitable candidate for partial knee (unicompartmental) replacement surgery.