An Alternative Technique to Treat Tibia Bone Loss in Revision Total Knee Arthroplasty
Komson Plangsiri MD*
Affiliation : * Department of Orthopaedics, Faculty of Medicine, Srinakharinwirot University, Nakhon Nayok, Thailand
The author report a case of aseptic loosening total knee arthroplasty with AORI type IIB tibia bone defect that were revived by an alternative technique using MBT revision tray and Metaphyseal Sleeves. The uncontained defect were converted to contained defect by metal mesh fixation on tibia circumferentially and 40 grams of tricalcium phosphate mixed with 1 cc of demineralized bone matrix (DBM) were impacted into defect. Patient was regularly followed-up and ambulated by non-weight bearing for one year. Knee Society Score was improved from 50 at the index of revision surgery to 85 at 24 months at last follow up. Flexion of right knee was 105 degree.
Keywords : Metal mesh, Tricalcium phosphate, Bone loss, Revision total knee arthroplasty, Demineralized bone matrix
