ArticleArthroplasty (London, England)2023
The effect of body mass index and preoperative weight loss in people with obesity on postoperative outcomes to 6 months following total hip or knee arthroplasty: a retrospective study.
Article in Arthroplasty (London, England), 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
5 citing papers in PubMed, 11 citations in OpenAlex.
- The Impact of Preoperative Weight Loss on 90-Day Complications Following Primary Total Knee Arthroplasty.Arthroplasty today · 2026Article
- Outcomes of total hip arthroplasty in obese patients with and without preoperative weight loss: A systematic review and meta-analysis.Journal of experimental orthopaedics · 2026Review
- Impact of functional evaluation 3D software on impingement and clinical outcomes in robotic-arm assisted total hip arthroplasty.Arthroplasty (London, England) · 2025Article
- Automatic measurement of lower limb alignment in portable devices based on deep learning for knee osteoarthritis.Journal of orthopaedic surgery and research · 2024Article
- Influencing factors on the quality of recovery after total knee arthroplasty: development of a predictive model.Frontiers in medicine · 2024Article
Corrections and comments
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Authors and funding
6 authors at 4 institutions in 1 country.
Funding
Abstract
backgroundFew studies have investigated the association between obesity, preoperative weight loss and postoperative outcomes beyond 30- and 90-days post-arthroplasty. This study investigated whether body mass index (BMI) and preoperative weight loss in people with obesity predict postoperative complications and patient-reported outcomes 6 months following total knee or hip arthroplasty.
methodsTwo independent, prospectively collected datasets of people undergoing primary total knee or hip arthroplasty for osteoarthritis between January 2013 and June 2018 at two public hospitals were merged. First, the sample was grouped into BMI categories, < 35 kg/m
resultsFrom 3,552 and 9,562 patients identified from the datasets, 1,337 were included in the analysis after merging. After adjustment for covariates, there was no difference in postoperative complication rate to 6 months post-surgery according to BMI category (OR 1.0, 95%CI 0.8-1.4, P = 0.8) or preoperative weight loss (OR 1.1, 95%CI 0.7-1.8, P = 0.7). There was no between-group difference according to BMI or preoperative weight change for any patient-reported outcomes 6 months post-surgery.
conclusionPreoperative BMI or a 5% reduction in preoperative BMI in people with obesity was not associated with postoperative outcomes to 6 months following total knee or hip arthroplasty.
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Registered trials
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