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Mortality was 10% at 3 months, 22% at 1 year and 47% at 3 years.We have identified that union can be achieved in the majority of cases after periprostheticfracture fixation. Cable fixation was associated with a high complication rate (7 cases: tworequiring revision surgery: one nonunion, one malunion).We recommend that Vancouver B1 periprosthetic fractures are treated with meticuloustechnique to achieve anatomical reduction and fracture compression using lag screw techniqueand plating. Further mechanical support can be provided through the use of a second plate,cables and/or strut grafts.FiguresSaturday, October 9, 2010, 9:00-9:30Session B17: Novel techniques in ArthroplastyAcetabular Reconstruction in Severe Bone Defects Using a New Cup WithIliac Screw: Presentation and Preliminary ResultsGiovanni Pignatti - Rizzoli Orthopedic Institute - Bologna, ItalyDante Dallari - - Medicina,*Nicola Rani - Istituti Rizzoli Bologna - Bologna, ItalyCesare Stagni - Rizzoli Orthopedic Institute - Bologna, ItalyNicolandrea Del Piccolo - Istituti Rizzoli Bologna - Bologna, ItalyArmando Giunti - - Bologna,*Email: nicola.rani@tiscali.itINTRODUCTION: Since July 2008 we are experimenting a new cup with iliac screw fixation,developed on the idea of Ring and Mc Minn. Iliac fixation is permitted by a polar screw oflarge diameter, coated by HA, which allows a compression to bone and a firm primary stability.Moreover it's possible to increase primary stability with further smaller peripherals screws. Wepresent this new cup and report the preliminary results.MATERIALS AND METHOD: Since July 2008 to April 2010, 51 cups were implanted. Thediagnosis was aseptic loosening in 36 cases, septic loosening treated by two-stage revision in 7,hip congenital dislocation in 5, one case of post-traumatic osteoarthritis, one case of instabilitydue to cup malposition and a case was an outcome of Girdlestone resection arthroplasty. Meanage was of 66 years (31-90).RESULTS: We report the results of our first 23 cases, with a minimal follow-up of 12 months.Patients were preoperatively evaluated from both clinical and radiological point of view. Bonedefect was analyzed according to the system of Paprosky. In 7 cases bone defect belonged totype 2C, in 8 cases to type 3A and in 8 cases to type 3B. We didn't observe any case of earlyloosening nor mechanical failure of the implant. The functional outcome, evaluated by HarrisHip Score, was good with a mean score of 82 (72-91).file:///E|/ISTA2010-Abstracts.htm[12/7/2011 3:15:47 PM]