ArticleOsteoarthritis and cartilage2014
Body mass index is not a clinically meaningful predictor of patient reported outcomes of primary hip replacement surgery: prospective cohort study.
Article in Osteoarthritis and cartilage, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers, 3 of them syntheses that pooled it.
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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
23 citing papers in PubMed, 3 syntheses or guidelines pooled it.
- Predictors of physical functioning after total hip arthroplasty: a systematic review.BMJ open · 2016Pooled it
- Preoperative predictors for outcomes after total hip replacement in patients with osteoarthritis: a systematic review.BMC musculoskeletal disorders · 2016Pooled it
- [Personality and comorbidity: are there "difficult patients" in hip arthroplasty?].Der Orthopade · 2015Pooled it
- Trial
- Patient Acceptable Symptom State (PASS) Threshold in the Oxford Hip Score 12 Months Following Primary Total Hip Arthroplasty: Factors Associated with Failure to Achieve the Threshold and the Impact on Hip-Specific Outcomes, Quality of Life, and Satisfaction.Journal of clinical medicine · 2026Article
- Impact of Body Mass Index on Functional Recovery After Total Hip Arthroplasty: A Prospective Study.Arthroplasty today · 2026Article
- Functional Recovery After Hip Arthroplasty with a Minimal Invasive or Classical Approach Eight Years After Intervention.Journal of functional morphology and kinesiology · 2024Article
- The influence of body mass index on patient-reported outcome measures following total hip arthroplasty: a retrospective study of 3,903 Cases.Archives of orthopaedic and trauma surgery · 2024Article
- Review
- Risk factors for pain after total hip arthroplasty: a systematic review.Arthroplasty (London, England) · 2023Review
- What is the minimum response rate on patient-reported outcome measures needed to adequately evaluate total hip arthroplasties?Health and quality of life outcomes · 2020Article
- Predictors of Health-Related Quality of Life After Revision Total Hip Arthroplasty for Aseptic Loosening.Indian journal of orthopaedics · 2020Article
- Clinical Faceoff: Should Orthopaedic Surgeons Have Strict BMI Cutoffs for Performing Primary TKA and THA?Clinical orthopaedics and related research · 2019Review
- Influence of body mass index on sagittal hip range of motion and gait speed recovery six months after total hip arthroplasty.International orthopaedics · 2019Article
- General and Abdominal Obesity as Risk Factors for Late-Life Mobility Limitation After Total Knee or Hip Replacement for Osteoarthritis Among Women.Arthritis care & research · 2018Article
- Letter to the Editor on "Implementation of Preoperative Screening Criteria Lowers Infection and Complication Rates Following Elective Total Hip Arthroplasty and Total Knee Arthroplasty in a Veteran Population".The Journal of arthroplasty · 2018Article
- Can Patient Selection Explain the Obesity Paradox in Orthopaedic Hip Surgery? An Analysis of the ACS-NSQIP Registry.Clinical orthopaedics and related research · 2018Observational
- Observational
- Risk Reduction Compared with Access to Care: Quantifying the Trade-Off of Enforcing a Body Mass Index Eligibility Criterion for Joint Replacement.The Journal of bone and joint surgery. American volume · 2018Article
- Functional Gain and Pain Relief After Total Joint Replacement According to Obesity Status.The Journal of bone and joint surgery. American volume · 2017Article
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Authors and funding
12 authors.
Funding
Abstract
objectivesTo describe whether body mass index (BMI) is a clinically meaningful predictor of patient reported outcomes following primary total hip replacement (THR) surgery.
designCombined data from prospective cohort studies. We obtained information from four cohorts of patients receiving primary THR for osteoarthritis: Exeter Primary Outcomes Study (EPOS) (n = 1431); EUROHIP (n = 1327); Elective Orthopaedic Centre (n = 2832); and St. Helier (n = 787). The exposure of interest was pre-operative BMI. Confounding variables included: age, sex, SF-36 mental health, comorbidities, fixed flexion, analgesic use, college education, OA in other joints, expectation of less pain, radiographic K&L grade, ASA grade, years of hip pain. The primary outcome was the Oxford Hip Score (OHS). Regression models describe the association of BMI on outcome adjusting for all confounders.
resultsFor a 5-unit increase in BMI, the attained 12-month OHS decreases by 0.78 points 95%CI (0.27-1.28), P-value 0.001. Compared to people of normal BMI (20-25), those in the obese class II (BMI 35-40) would have a 12-month OHS that is 2.34 points lower. Although statistically significant this effect is small and not clinically meaningful in contrast to the substantial change in OHS seen across all BMI groupings. In obese class II patients achieved a 22.2 point change in OHS following surgery.
conclusionsPatients achieved substantial change in OHS after THR across all BMI categories, which greatly outweighs the small difference in attained post-operative score. The findings suggest BMI should not present a barrier to access THR in terms of PROMs.
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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.