The DOI matches its Crossref record; 31 of the 31 references it cites were found in a registry or an index.
Total knee replacement in morbidly obese patients: RESULTS OF A PROSPECTIVE, MATCHED STUDY
Open accessAbstract
The results of 41 consecutive total knee replacements performed on morbidly obese patients with a body mass index > 40 kg/m 2, were compared with a matched group of 41 similar procedures carried out in non-obese patients (body mass index < 30 kg/m 2). The groups were matched for age, gender, diagnosis, type of prosthesis, laterality and pre-operative Knee Society Score. We prospectively followed up the patients for a mean of 38.5 months (6 to 66). No patients were lost to follow-up. At less than four years after operation, the results were worse in the morbidly obese group compared with the non-obese, as demonstrated by inferior Knee Society Scores (mean knee score 85.7 and 90.5 respectively, p = 0.08; mean function score 75.6 and 83.4, p = 0.01), a higher incidence of radiolucent lines on post-operative radiographs (29% and 7%, respectively, p = 0.02), a higher rate of complications (32% and 0%, respectively, p = 0.001) and inferior survivorship using revision and pain as end-points (72.3% and 97.6%, respectively, p = 0.02). Patients with a body mass index > 40 kg/m 2 should be advised to lose weight prior to total knee replacement and to maintain weight reduction. They should also be counselled regarding the inferior results which may occur if they do not lose weight before surgery.
Overview
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Integrity signals
Registry
Cites
Statistics
Verification
Claims the paper makes
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Self-check
Percentages, sums and reported differences re-computed from the paper’s own numbers.
The self-check needs the paper’s full text.
Citations
Cites
Rationale, of The Knee Society Clinical Rating System
INSALL, J. N., DORR, L. D., SCOTT, R. D., & NORMAN, W. (1989) · Clinical Orthopaedics and Related Research · doi:10.1097/00003086-198911000-00004 · Cited by 4,793
The Knee Society Total Knee Arthroplasty Roentgenographic Evaluation and Scoring System
Ewald, F. C. (1989) · Clinical Orthopaedics and Related Research · doi:10.1097/00003086-198911000-00003 · Cited by 1,971
Contingency Tables Involving Small Numbers and the χ2 Test
Yates, F. (1934) · Journal of the Royal Statistical Society Series B: Statistical Methodology · doi:10.2307/2983604 · Cited by 1,281
Willett, W. C., Dietz, W. H., & Colditz, G. A. (1999) · New England Journal of Medicine · doi:10.1056/nejm199908053410607 · Cited by 1,143
The mechanics of the knee joint in relation to normal walking
Morrison, J. B. (1970) · Journal of Biomechanics · doi:10.1016/0021-9290(70)90050-3 · Cited by 1,055
(1998) · Obesity Research · doi:10.1002/j.1550-8528.1998.tb00690.x · Cited by 758
Wound Tissue Oxygen Tension Predicts the Risk of Wound Infection in Surgical Patients
Hopf, H. W. (1997) · Archives of Surgery · doi:10.1001/archsurg.1997.01430330063010 · Cited by 635
Obesity and Perioperative Morbidity in Total Hip and Total Knee Arthroplasty Patients
Namba, R. S., Paxton, L., Fithian, D. C., & Stone, M. L. (2005) · The Journal of Arthroplasty · doi:10.1016/j.arth.2005.04.023 · Cited by 486
Obesity Decreases Perioperative Tissue Oxygenation
Kabon, B., Nagele, A., Reddy, D., Eagon, C., Fleshman, J. W., Sessler, D. I., & Kurz, A. (2004) · Anesthesiology · doi:10.1097/00000542-200402000-00015 · Cited by 376
Total Knee Arthroplasty in Morbidly Obese Patients*
WINIARSKY, R., BARTH, P., & LOTKE, P. (1998) · The Journal of Bone & Joint Surgery · doi:10.2106/00004623-199812000-00006 · Cited by 356
Cited by
Garvey, W. T., Mechanick, J. I., Brett, E. M., Garber, A. J., Hurley, D. L., Jastreboff, A. M., Nadolsky, K., Pessah-Pollack, R., & Plodkowski, R. (2016) · Endocrine Practice · doi:10.4158/ep161365.gl · Cited by 1,914
Mechanick, J. I., Apovian, C., Brethauer, S., Garvey, W. T., Joffe, A. M., Kim, J., Kushner, R. F., Lindquist, R., Pessah-Pollack, R., Seger, J., et al. (2020) · Surgery for Obesity and Related Diseases · doi:10.1016/j.soard.2019.10.025 · Cited by 608
Mechanick, J. I., Apovian, C., Brethauer, S., Garvey, W. T., Joffe, A. M., Kim, J., Kushner, R. F., Lindquist, R., Pessah-Pollack, R., Seger, J., et al. (2019) · Endocrine Practice · doi:10.4158/gl-2019-0406 · Cited by 510
Kerkhoffs, G. M. M. J., Servien, E., Dunn, W., Dahm, D., Bramer, J. A. M., & Haverkamp, D. (2012) · The Journal of Bone & Joint Surgery · doi:10.2106/jbjs.k.00820 · Cited by 503
Kulkarni, K., Karssiens, T., Kumar, V., & Pandit, H. (2016) · Maturitas · doi:10.1016/j.maturitas.2016.04.006 · Cited by 465
Metadata
- Authors
- Amin, A. K., Clayton, R. A. E., Patton, J. T., Gaston, M., Cook, R. E., & Brenkel, I. J.
- Venue
- The Journal of Bone and Joint Surgery. British volume
- Published
- 2006-10
- Volume
- 88-B
- Issue
- 10
- Pages
- 1321-1326
- ISSN
- 0301-620X (ISSN-L)
- 2044-5377
- OpenAlex
- W2263870577
- Cited by
- 263
- References
- 31
- FWCI
- 9.66
- Type
- journal article
- Language
- en
- Open access
- bronze
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
Are you an author, or do you see a problem with this page? Request a review
How to cite
Cite CoChat for the checks on this page, and the paper for its own findings.
- This page
- CoChat. (2026). Citation check: Total knee replacement in morbidly obese patients: RESULTS OF A PROSPECTIVE, MATCHED STUDY. https://app.cochat.ai/papers/10.1302/0301-620x.88b10.17697
- The paper
- Amin, A. K., Clayton, R. A. E., Patton, J. T., Gaston, M., Cook, R. E., & Brenkel, I. J. (2006). Total knee replacement in morbidly obese patients: RESULTS OF A PROSPECTIVE, MATCHED STUDY. The Journal of Bone and Joint Surgery. British volume. https://doi.org/10.1302/0301-620x.88b10.17697
Data sources
Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
