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can affect any site in the body, however lower limbs are more commonly affected. It classicallypresents on only one side of the cortex of long bones. It is common in synovial joints andcrosses the joint line in 35% cases. Its etiology is unknown and it is a benign condition but thereare 3 reported cases in literature associated with malignancy. Chronic pain and deformity frommelorheostosis can be severely debilitating for patients. Its management in most cases isconservative. Surgical intervention is advocated in chronic debilitating symptoms. Successfulresection of these lesions can translate into near complete resolution of the symptoms. A Totalhip replacement can be used to treat severe melorheostosis of the hip joint with complete reliefof symptoms and achieving a good functional outcome in the short term.FiguresFigure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6Thursday, October 7, 2010, 16:30-17:20Session A8: Periprosthetic Fractures in THAComplications Associated With Operative Treatment of Peri-ProstheticFemur Fractures Sustained in the Acute Post-Operative Period FollowingPrimary Total Hip Arthroplasty*Neil Sheth - OrthoCarolina - Charlotte, USANick Brown - Rush University - Chicago, USACraig Della Valle - Rush University - Chicago, USA*Email: neilshethmd@gmail.comINTRODUCTION: The purpose of this study was to determine the rate of complications andre-operations after operative treatment of peri-prosthetic femur fractures sustained within 90days following primary total hiparthroplasty (THA).METHODS: 4,433 patients (5,196 consecutive primary THAs) over 10 years at a singleinstitution were retrospectively reviewed. Thirty-five (0.67%) peri-prosthetic fractures that weretreated operatively in 32 patients were identified and classified using the VancouverClassification. There were 9 patients with a type Agfracture, 2 patients with a type B1 fracture, 17 patients with a type B2 fracture, 1 patient with atype B3fracture, and 3 patients with a concomitant type Ag and B2 fracture. Eleven (34%) patientswere treatedwith isolated ORIF: greater trochanter (9) or femoral shaft (2). Twenty-one (66%) were treatedfile:///E|/ISTA2010-Abstracts.htm[12/7/2011 3:15:47 PM]