A Hydroxyapatite Coated Collar Reduces Aseptic Loosening of Cemented Distal Femoral Massive Bone Tumour Prostheses
نویسندگان
چکیده
Background: Aseptic loosening of massive bone tumour implants remains one of the major causes of prosthesis failure. Question: The hypothesis of this study was that an osteointegrated hydroxyapatite (HA) coated collar would reduce the incidence of aseptic loosening around the cemented intramedullary stem in distal femoral bone tumour prostheses. Methods: Twenty-two patients were pair matched into either; (1) implants with a HA coated ingrowth collar (HA Collar group) and (2) implants without an ingrowth collar (Non-Collar Group). Radiographs obtained throughout the follow-up period were analysed and osteointegration at the shaft of the implant quantified. Cortical bone loss at the boneshoulder-implant junction was also measured and radiolucent line progression around the cemented stem was scored.
منابع مشابه
Aseptic loosening in cemented custom-made prosthetic replacements for bone tumours of the lower limb.
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