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the Nitinol ® tabs are in the “restrained” configuration. Just at the time of surgery procedure,the stem is taken out of the refrigerator and inserted into the femoral diaphysis. At corporealtemperature, the Nitinol tabs enlarge, compressing the metaphyseal cancellous femoral regionand give an immediate primary stability. We report clinical and radiological results of 15patients ( mean follow-up: 8 months ) that underwent surgical procedure of bipolarhemiarthroplasty with F.G.L. stem in our department from March 2008 to December 2009. Wehad no perioperative complications and the results overlapped those of patients that underwentstandard cemented bipolar hemiarthroplasty. The advantage of the use of F.G.L. stem is that itallows an immediate primary stability without searching an extreme press-fit. The disadvantageis the higher cost respect a standard cemented bipolar hemiarthroplasty. Therefore its useshould be limited to those patients in which the surgery time must be contained for severecomorbidity, or in patients in which specific cardio-pulmonary complaints make dangerous theuse of cement.FiguresSaturday, October 9, 2010, 10:30-11:05Session B18: Pot Pourri!A Minimally Invasive Interpretation of the Smith-Petersen Approach: TheAnterior Lateral Decubitus Intermuscolar (ALDI) Approach.Serafino Carta - - Siena,*Mattia Fortina - University Hospital F Siena - Rosia - Sovicille, ItalyPaolo Ferrata - University Hospital of Siena - Siena, Italy*Email: tia1974@libero.itBackground: The increasing desire to protect the periarticular structures led the need of a TissueSparing Surgery. The accesses most widely used are the direct-lateral approach and the posterolateralone, both with patient in lateral decubitus. Aim: This accesses require however anincision of tendons and muscles even in their minimally invasive technique, so we looked foran approach that would wholly protect the periarticular structures and allow us not to revise ourexperience in patient positioning, preparation of the operating field and surgeon’s positionduring surgery. Our intent was to leave the acquired knowledge unchanged and to preserveunaltered the anatomical landmarks that we had previously identified and consolidated for thecorrect positioning of the components. Methods: We have used this approach in more than 180cases of primary hip arthroplasty. Clinical control includes: Oxford Hip Score, VAS and X-Ray. Results: OHS mean:44, range 37-48. On X-Ray no signs of components migration,radioucent lines or osteolysis. We didn’t have dislocations or other complications. Discussion:The only approach that safeguard really the periarticular structures is the anterior one (Smith-Petersen), which actually is performed placing the patient in supine decubitus, with obviousdifficulties in preparing the operating field and a complete change of the anatomical landmarks.We have combined the advantages of the anterior access with the ones linked to the lateraldecubitus. The rewards of this new approach are: easiest preparation of the operating field, nospecial bed or supports are required, the inferior limb can be easly moved, it is a real tissuesparing approach, good acetabular exposition, surgeon placed traditionally on the posterior sidefile:///E|/ISTA2010-Abstracts.htm[12/7/2011 3:15:47 PM]