Conclusions
Minimally invasive UKA is reliable and effective for the treatment of isolated medial or lateral knee arthrosis. It offers a decreased morbidity, surgical option that satisfies patients, improves function, and has an economic advantage over TKR as a result of reduced implant cost, decreased acute hospitalization, lower transfusion incidence, lower complication rates, and the reduced need for subacute rehabilitation and outpatient physical therapy. Further economic advantages exist in that resurfacing type unicondylar components can be revised with primary total knee components, effectively eliminating the need for costly revision knee prostheses in most patients. Unicondylar procedures have a finite survivorship. Younger, heavier, or more active patients should be advised that the effective period for their implant may be shorter than the 10 years that the average patient experiences.6–14 Patients who are older or less active may function well with a unicondylar prosthesis for 12 or more years.9,10 Minimally invasive UKA is a technically demanding procedure, and early failures can be expected if the procedure is attempted without proper preoperative instruction. Centers performing UKA on a regular basis demonstrate better results than those centers where the procedure is done only occasionally.18,52,53 Surgeons not familiar with minimally invasive UKA benefit from appropriate preoperative instruction.
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Romanowski, M.R., Repicci, J.A. (2004). Unicondylar Knee Surgery: Development of the Minimally Invasive Surgical Approach. In: Scuderi, G.R., Tria, A.J. (eds) MIS of the Hip and the Knee. Springer, New York, NY. https://doi.org/10.1007/0-387-21715-0_7
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