The risk of surgical site infection and re-admission in obese patients undergoing total joint replacement who lose weight before surgery and keep it off post-operatively
2014
This study evaluated whether obese patients who
lost weight before their total joint replacement and kept it off post-operatively
were at lower risk of surgical site infection (SSI) and re-admission
compared with those who remained the same weight. We reviewed 444 patients who underwent a total hip replacement
and 937 with a total knee replacement who lost weight pre-operatively
and sustained their weight loss after surgery. After adjustments,
patients who lost weight before a total hip replacement and kept
it off post-operatively had a 3.77 (95% confidence interval (CI)
1.59 to 8.95) greater likelihood of deep SSIs and those who lost
weight before a total knee replacement had a 1.63 (95% CI 1.16 to
2.28) greater likelihood of re-admission compared with the reference
group. These findings raise questions about the safety of weight management
before total replacement of the hip and knee joints. Cite this article: Bone Joint J 2014;96-B:629–35.
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