EDITORIAL
Overweight: its effect on the knee and the hip
Overweight: advancing our understanding of its impact on the knee and the hip
1 Department of Medicine, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, USA
2 Department of Physical Therapy and Human Movement Sciences, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, USA
Correspondence to:
Correspondence to:
Dr Leena Sharma
Division of Rheumatology, Feinberg School of Medicine, Northwestern University, 240 E Huron, Suite M300, Chicago, IL 60611, USA; l-sharma@northwestern.edu
Accepted 29 October 2006
Why the effect of excess body weight is greater at the knee
Abbreviations: BMI, body mass index
| The first 150 words of the full text of this article appear below. |
In their study, Reijman et al1(see page 158) report findings that show an association between an increased body mass index (BMI) and greater risk of both incident knee osteoarthritis and knee osteoarthritis progression, but no association between an increased BMI and risk of either incident or progressive hip osteoarthritis. These results confirm what previous studies—that is, studies that were not specifically designed to look at the effect of BMI on the knee and the hip—had hinted at, that BMI has no effect or a smaller effect at the hip than at the knee. As the first study in which BMI effects on the knee and hip were examined in the same population, the study by Reijman et al is a landmark study.
In the literature, summarised by Reijman et al1 in this issue of the journal, the evidence supporting a
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