title: Porous tantalum implant in early osteonecrosis of the hip: preliminary report on operative, survival, and outcomes results.
abstract: Porous tantalum implants are used in early osteonecrosis of the hip. Device evaluation included surgical time, blood loss, hospitalization, patient-controlled analgesia use, transfusions, implant survival, and outcomes. Mean blood loss was 70 mL. Mean operative time was 36 minutes. Average hospitalization was less than 1 day. No patient required patient-controlled analgesia use or transfusions. Results were compared to a historical vascularized fibular graft population. All parameters were less than the fibular graft groups (P < .00001). All surviving implants (86%) resulted in good to excellent outcomes. Kaplan-Meier analysis at 39 months was 86% and 67% for the implant and fibular graft, respectively (P = .21). Early outcomes demonstrate that porous tantalum implants are a safe option for femoral head salvage. Continued follow-up is necessary to determine the long-term success.
authors.affiliation: Department of Orthopaedics, Emory University, Atlanta, Georgia, USA.
authors.forename: Michael S
authors.initials: MS
authors.lastname: Shuler
authors.forename: Michael D
authors.initials: MD
authors.lastname: Rooks
authors.forename: James R
authors.initials: JR
authors.lastname: Roberson
mesh_terms: D000328:Adult; D019644:Arthroplasty, Replacement, Hip / Q000009:adverse effects / Q000295:instrumentation / Q000379:methods*; D016025:Bone Transplantation / Q000009:adverse effects / Q000295:instrumentation / Q000379:methods; D005260:Female; D005271:Femur Head Necrosis / Q000601:surgery*; D006621:Hip Joint / Q000000981:diagnostic imaging; D006622:Hip Prosthesis; D006801:Humans; D008297:Male; D008875:Middle Aged; D011446:Prospective Studies; D011859:Radiography; D016019:Survival Analysis; D013635:Tantalum; D016896:Treatment Outcome
chemical_list: D013635:Tantalum