The effect of obesity and increasing age on operative time and length of stay in primary hip and knee arthroplasty.
retrospective_cohort · Level III
Where this comes from
- Record sourced from PubMed, PMID 25081514.
- Also identified by DOI 10.1016/j.arth.2014.06.002.
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Abstract
We retrospectively reviewed 589 patients undergoing lower-limb arthroplasty, recording age, body mass index (BMI) and co-morbidities. The effect of these on operative duration and length of stay (LOS) was analysed. For a 1 point increase in BMI we expect LOS to increase by a factor of 2.9% and mean theatre time to increase by 1.46minutes. For a 1-year increase in age, we expect LOS to increase by a factor of 1.2%. We have calculated the extra financial costs associated. The current reimbursement system underestimates the financial impact of BMI and age. The results have been used to produce a chart that allows prediction of LOS following lower limb arthroplasty based on BMI and age. These data are of use in planning operating lists.
Medical subject headings
- Arthroplasty, Replacement, Knee
- Length of Stay
- Obesity
- Operative Time
- Osteoarthritis, Knee
Anatomy
- hip
- knee