SynthesisActa orthopaedica2011
Obesity in total hip arthroplasty--does it really matter? A meta-analysis.
Synthesis in Acta orthopaedica, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 62 papers, 1 of them a synthesis that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
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.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
62 citing papers in PubMed, 1 synthesis or guideline pooled it.
- [Perioperative management of obese patients undergoing elective hip and knee arthroplasty].Orthopadie (Heidelberg, Germany) · 2025Pooled it
- Contraindications of femoral implants in primary total hip arthroplasty : legal implications and strategies for orthopaedic surgeons.Bone & joint open · 2026Article
- Outcomes of primary total hip arthroplasty using dual mobility cups across body mass index categories: a multi-centric cohort study.International orthopaedics · 2026Observational
- Impact of Body Mass Index on Functional Recovery After Total Hip Arthroplasty: A Prospective Study.Arthroplasty today · 2026Article
- The effect of a total hip arthroplasty bundled payment program on perioperative smoking and obesity.Bulletin of the Hospital for Joint Disease (2013) · 2025Article
- Surgical approaches in total hip arthroplasty do not influence the bacterial spectrum of acute postoperative periprosthetic joint infections.Journal of bone and joint infection · 2025Article
- Dual-Mobility Total Hip Arthroplasty in Patients with Obesity, Morbid Obesity and Super-Obesity: Medium-Term Outcomes of a Series of 180 Hips.Indian journal of orthopaedics · 2025Article
- Robotic-assisted total hip arthroplasty outperforms manual technique in obese and overweight patients: a prospective comparative study.Journal of orthopaedic surgery and research · 2024Article
- A Novel Technique for Autograft Preparation Using Patient-Specific Instrumentation (PSI) Assistance in Total Hip Arthroplasty in Developmental Dysplasia of Hip (DDH).Journal of personalized medicine · 2023Article
- Body Mass Index (BMI) Cutoffs and Racial, Ethnic, Sex, or Age Disparities in Patients Treated With Total Ankle Arthroplasty.Foot & ankle orthopaedics · 2023Article
- Implications of obesity in patients with foot and ankle pathology.World journal of orthopedics · 2023Review
- Fast Track Protocols and Early Rehabilitation after Surgery in Total Hip Arthroplasty: A Narrative Review.Clinics and practice · 2023Review
- Epidemiology of total hip arthroplasty: demographics, comorbidities and outcomes.Arthroplasty (London, England) · 2023Article
- Bikini anterior hip replacements in obese patients are not associated with an increased risk of complication.Archives of orthopaedic and trauma surgery · 2022Article
- Robotic-assisted versus manual total hip arthroplasty in obese patients: a retrospective case-control study.Journal of orthopaedic surgery and research · 2022Article
- Total Hip Arthroplasty: Direct Anterior Approach Versus Posterior Approach in the First Year of Practice.The Iowa orthopaedic journal · 2022Article
- Obesity, preoperative weight loss, and telemedicine before total joint arthroplasty: a review.Arthroplasty (London, England) · 2022Review
- Article
- The Association of Body Mass Index with Surgical Time Is Mediated by Comorbidity in Patients Undergoing Total Hip Arthroplasty.Journal of clinical medicine · 2021Article
- Total Hip Replacement for Osteoarthritis-Evidence-Based and Patient-Oriented Indications.Deutsches Arzteblatt international · 2021Review
2 more citing papers are in PubMed but not listed here.
Corrections and comments
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Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
background and purposeDiscussion persists as to whether obesity negatively influences the outcome of hip arthroplasty. We performed a meta-analysis with the primary research question of whether obesity has a negative effect on short- and long-term outcome of total hip arthroplasty.
methodsWe searched the literature and included studies comparing the outcome of hip arthroplasty in different weight groups. The methodology of the studies included was scored according to the Cochrane guidelines. We extracted and pooled the data. For continuous data, we calculated a weighted mean difference and for dichotomous variables we calculated a weighted odds ratio (OR). Heterogeneity was calculated using I(2) statistics.
results15 studies were eligible for data extraction. In obese patients, dislocation of the hip (OR = 0.54, 95% CI: 0.38-0.75) (10 studies, n = 8,634), aseptic loosening (OR = 0.64, CI: 0.43-0.96) (6 studies, n = 5,137), infection (OR = 0.3, CI: 0.19-0.49) (10 studies, n = 7,500), and venous thromboembolism (OR = 0.56, CI: 0.32-0.98) (7 studies, n = 3,716) occurred more often. Concerning septic loosening and intraoperative fractures, no statistically significant differences were found, possibly due to low power. Subjective outcome measurements did not allow pooling because of high heterogeneity (I(2) = 68%).
interpretationObesity appears to have a negative influence on the outcome of total hip replacement.
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Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.