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Delayed Union of Tibial Plateau Frx

- Discussion:
    - most tibial plateau frx exhibits bony healing withing 3 months of frx;
    - any frx that fails to heal clinically & radiologically in 3 mo is considered to have a delayed union;
    - most common cause of delayed union is gradual loss of frx reduction over period of wks because of inadequate treatment that allows frx movement or hold fragments apart;
    - if delayed union occurs despite accurate bony approximation, cast immobilization for a few weeks is used;
    - if there is poor bony contact, ORIF is performed