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Total knee arthroplasty without patellar resurfacing.

M Soudry, L A Mestriner, R Binazzi

    Clinical Orthopaedics and Related Research
    |April 1, 1986
    PubMed
    Summary
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    Total condylar knee arthroplasty without patellar resurfacing showed similar overall results but impaired stair-climbing ability in one-third of patients. Patellar resurfacing may be omitted in select cases.

    Area of Science:

    • Orthopedic Surgery
    • Biomedical Engineering

    Background:

    • Total condylar knee arthroplasty (TCKA) is a common procedure for severe knee osteoarthritis.
    • Patellar resurfacing is a debated component of TCKA, with potential benefits and risks.

    Purpose of the Study:

    • To evaluate the outcomes of TCKA performed without patellar resurfacing.
    • To compare results with a historical cohort that underwent TCKA with patellar resurfacing.

    Main Methods:

    • Retrospective review of 27 TCKA cases performed without patellar resurfacing (1974-1980).
    • Average follow-up of 5.2 years.
    • Comparison with a previously reported cohort of 100 TCKA cases.

    Main Results:

    • Overall results were similar between the two groups.

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  • A significant difference was observed in stair-climbing ability.
  • One-third of patients in the non-resurfaced group could not use the operated knee for stair climbing.

    • Conclusions:

    • TCKA without patellar resurfacing may lead to functional deficits, particularly in stair-climbing.
    • Patellar resurfacing can likely be omitted in patients with normal patellar cartilage.
    • Consider omitting patellar resurfacing in young, active, or obese patients at high risk for patellar bone fracture.