Key result
Heavy tobacco use and obesity increased the risk of systemic post-operative complications by 121% and 58%, respectively, in patients undergoing primary total hip replacement (p=0.004).
Why the study?
Does tobacco use and high body mass index increase the length of stay and risk of post-operative complications in patients undergoing total hip replacement?
Cohort (n=3,309)
Does tobacco use and high body mass index increase the length of stay and risk of post-operative complications in patients undergoing total hip replacement?
p-value: p=0.004
Smoking and high body mass index significantly increase the risk of systemic complications and length of hospital stay following total hip replacement.
Supports preoperative risk stratification in hip replacement; leaves open whether interventions on tobacco use or BMI improve outcomes.
We carried out a retrospective cohort study of 3309 patients undergoing primary total hip replacement to examine the impact of tobacco use and body mass index on the length of stay in hospital and the risk of short term post-operative complications. Heavy tobacco use was associated with an increased risk of systemic post-operative complications (p = 0.004). Previous and current smokers had a 43% and 56% increased risk of systemic complications, respectively, when compared with non-smokers. In heavy smokers, the risk increased by 121%. A high body mass index was significantly associated with an increased mean length of stay in hospital of between 4.7% and 7%. The risk of systemic complications was increased by 58% in the obese. Smoking and body mass index were not significantly related to the development of local complications. Greater efforts should be taken to reduce the impact of preventable life style factors, such as smoking and high body mass index, on the post-operative course of total hip replacement.
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Bellocco et al. (2006) conducted a cohort in primary total hip replacement (n=3,309). Tobacco use and high body mass index vs. Non-smokers and non-obese patients was evaluated on systemic post-operative complications (p=0.004). Heavy tobacco use and obesity increased the risk of systemic post-operative complications by 121% and 58%, respectively, in patients undergoing primary total hip replacement (p=0.004).
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