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Selected Instructional Course Lecture   |    
Patellar Instability
Daniel E. Redziniak, MD1; David R. Diduch, MD1; William M. Mihalko, MD, PhD2; John P. Fulkerson, MD3; Wendy M. Novicoff, PhD1; Shahin Sheibani-Rad, MD, MS4; Khaled J. Saleh, MD, MSc, FRCSC5
1 Department of Orthopaedic Surgery, University of Virginia, Box 800159, HSC, Charlottesville, VA 22908
2 Department of Orthopaedic Surgery, Campbell Clinic, 1458 West Poplar Avenue, Suite 100, Collierville, TN 38017
3 Orthopedic Associates of Hartford, 499 Farmington Avenue, Suite 300, Farmington, CT 06032
4 Brown Medical School/Rhode Island Hospital, 593 Eddy Street, Providence, RI 02903
5 Division of Orthopaedic Surgery, Department of Surgery, Southern Illinois University School of Medicine, 701 North First Street, P.O. Box 19679, Springfield, IL 62794. E-mail address: ksaleh@siumed.edu
View Disclosures and Other Information
Disclosure: The authors did not receive any outside funding or grants in support of their research for or preparation of this work. One or more of the authors or a member of his or her immediate family received, in any one year, payments or other benefits in excess of $10,000 or a commitment or agreement to provide such benefits from commercial entities (Elsevier, Aesculap, DJ Orthopedics, and Stryker).
Printed with permission of the American Academy of Orthopaedic Surgeons. This article, as well as other lectures presented at the Academy's Annual Meeting, will be available in March 2010 in Instructional Course Lectures, Volume 59. The complete volume can be ordered online at www.aaos.org, or by calling 800-626-6726 (8 a.m.-5 p.m., Central time).
An Instructional Course Lecture, American Academy of Orthopaedic Surgeons

The Journal of Bone and Joint Surgery, Inc.
J Bone Joint Surg Am, 2009 Sep 01;91(9):2264-2275
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Extract

Patellar instability is a generic term that describes patellar dislocation, patellar subluxation, and general symptomatic patellar instability1. It is estimated that patellar instability affects between seven and forty-nine people per 100,0002,3. It accounts for 11% of the musculoskeletal symptoms seen in the office setting as well as 16% to 25% of all injuries in runners. There is a higher incidence in females4.
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    These activities have been planned and implemented in accordance with the Essential Areas and policies of the Accreditation Council for Continuing Medical Education (ACCME) through the joint sponsorship of the American Academy of Orthopaedic Surgeons and The Journal of Bone and Joint Surgery, Inc. The American Academy of Orthopaedic Surgeons is accredited by the ACCME to provide continuing medical education for physicians.
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