Scientific Exhibits   |    
Failure of Sex to Predict the Size and Shape of the Knee
J. David Blaha, MD1; Corrie A. Mancinelli, PT, PhD2; Kristi A. Overgaard, BSc1
1 Department of Orthopaedic Surgery, University of Michigan, 1500 East Medical Center Drive, TC 2912, Ann Arbor, MI 48109. E-mail address for J.D. Blaha: jdblaha@med.umich.edu
2 Division of Physical Therapy, Department of Human Performance and Applied Exercise Science, West Virginia University, P.O. Box 9226, Morgantown, WV 26506-9226
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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 a commercial entity (Wright Medical Technology).

The Journal of Bone and Joint Surgery, Inc.
J Bone Joint Surg Am, 2009 Nov 01;91(Supplement 6):19-22. doi: 10.2106/JBJS.I.00563
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The concept of sex-related differences in knee morphology that has led to sex specificity in total knee replacement has generated a great deal of interest in both the popular press and the orthopaedic literature. Some clinicians and implant designers purport that there are sex-based anatomical differences in the size and shape of the female knee. Because of these differences, they add, women need an implant that is "just for them." Sex-specific knees have been touted as "the next level of sophistication."1 There is, however, legitimate skepticism about the scientific evidence supporting this view; thus, the need for these implants is a matter of debate.
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    knee joint ; women ; femur

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