To the Editor,I read the article by Kuhn et al. [4] with great interest. I have several comments on the association of acetabular retro version with femoral neck stress fracture.Previous studies [1-3, 5] have linked the development of stress fracture to military training. I congratulate Kuhn et al. for their discussion of femoral neck stress fracture. As a former military physician who served U.S. Marines in basic training, I agree that early recognition and treatment of femoral neck stress fracture is a high priority. However, their assertion that a clear association exists between acetabular retroversion and femoral neck stress fracture is problematic. Femoral neck stress fracture occurred in their study group regardless of whether acetabular retro-version was present or absent (57% versus 43%, respectively). The authors did not present a statistical analysis delineating a difference between these subgroups.
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