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Shen Y, Li F, Cao L, Wang Y, Xiao J, Zhou X, Tian T. Hip Osteoarthritis and the Risk of Lacunar Stroke: A Two-Sample Mendelian Randomization Study. Genes (Basel) 2022; 13:genes13091584. [PMID: 36140752 PMCID: PMC9498627 DOI: 10.3390/genes13091584] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2022] [Revised: 08/26/2022] [Accepted: 09/01/2022] [Indexed: 11/16/2022] Open
Abstract
Whether hip osteoarthritis (OA) could increase the risk of lacunar stroke (LS) is not well understood. This two-sample Mendelian randomization (MR) study aimed to investigate in depth the effect of genetically predicted hip OA on LS risk. Hip OA-related instrumental variables (IVs) were selected from a genome-wide association study (GWAS) of 393,873 individuals. The summary data of LS were obtained from a GWAS meta-analysis, including 16,030 cases and 248,929 controls. We used the inverse-variance weighted (IVW) as the primary MR analysis method. Moreover, the weighted-median, MR-Egger regression, and the MR pleiotropy residual sum and outlier (MR-PRESSO) test were supplementary methods. The sensitivity analysis was performed using the leave-one-out test. We identified the positive causal relationship between hip OA and the risk of LS (odds ratio [OR] = 1.20, 95% confidence interval [CI]: 1.07, 1.36; p = 0.002 using the IVW method). The weighted median method provided similar results. There was no evidence of directed pleiotropy, and sensitivity analysis results were stable, suggesting the robustness of our study. This study showed a causal effect of hip OA on the risk of LS, and more efforts should be made to explore the potential mechanisms in the future.
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Affiliation(s)
- Yi Shen
- Department of Epidemiology & Health Statistics, School of Public Health, Nantong University, Nantong 226019, China
| | - Fuju Li
- Department of Epidemiology & Health Statistics, School of Public Health, Nantong University, Nantong 226019, China
| | - Lina Cao
- Department of Epidemiology & Health Statistics, School of Public Health, Nantong University, Nantong 226019, China
| | - Yunyun Wang
- Department of Epidemiology & Health Statistics, School of Public Health, Nantong University, Nantong 226019, China
| | - Jing Xiao
- Department of Epidemiology & Health Statistics, School of Public Health, Nantong University, Nantong 226019, China
| | - Xiaoyi Zhou
- Center for Disease Control and Prevention of Nantong, Nantong 226007, China
- Correspondence: (X.Z.); (T.T.); Tel.: +86-1891-439-6755 (X.Z.); +86-1599-655-5458 (T.T.)
| | - Tian Tian
- Department of Epidemiology & Health Statistics, School of Public Health, Nantong University, Nantong 226019, China
- Correspondence: (X.Z.); (T.T.); Tel.: +86-1891-439-6755 (X.Z.); +86-1599-655-5458 (T.T.)
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HAILER YD, KÄRRHOLM J, ERIKSSON N, HOLMBERG L, HAILER NP. Similar risk of cancer in patients younger than 55 years with or without a total hip arthroplasty (THA): a population- based cohort study on 18,771 exposed to THA and 87,683 controls. Acta Orthop 2022; 93:317-326. [PMID: 35138409 PMCID: PMC8826686 DOI: 10.2340/17453674.2022.2044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Indexed: 01/31/2023] Open
Abstract
BACKGROUND AND PURPOSE Concerns related to a potentially increased risk of cancer after total hip arthroplasty (THA) have frequently surfaced, especially since the novel EU medical device regulation classified cobalt as carcinogenic. We assessed the risk of cancer after THA in a nationwide cohort of patients younger than 55 years at surgery. PATIENTS AND METHODS In this population-based longitudinal cohort study, 18,771 individuals exposed to THA were identified in the Swedish Hip Arthroplasty Registry (SHAR) and compared with 87,683 unexposed individuals who were matched by age, sex, and residence. Diagnoses, socioeconomic background, and dates of death were obtained from the Swedish Cancer Register, the National Patient Register, and Statistics Sweden. Primary outcome was the adjusted risk of any cancer after the first THA; secondary outcomes were specific cancer forms. RESULTS We found no enhanced adjusted risk of developing any cancer, either in exposed females compared with unexposed females (hazard ratio [HR] 1.1, 95% confidence interval [CI] 0.95-1.2), or in exposed males (HR 1.1, CI 0.99-1.2). When analysing specific cancers, increased adjusted risks were found for thyroid and pancreas cancer in exposed females, and for cancer of the stomach, skin melanoma, and prostate cancer in exposed males. INTERPRETATION This study indicates that there is no statistically significant increased overall risk of cancer in young THA-exposed patients. The potentially slightly enhanced risk for specific cancers may be due to residual confounding resulting from risk factors not accounted for and merits further investigation.
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Affiliation(s)
- Yasmin D HAILER
- Section of Orthopaedics, Department of Surgical Sciences, Uppsala University Hospital, Sweden
| | - Johan KÄRRHOLM
- Swedish Arthroplasty Register, Gothenburg, Sweden,Department of Orthopaedics, Institute of Clinical Sciences, The Sahlgrenska Academy, University of Gothenburg, Sweden
| | | | - Lars HOLMBERG
- Department of Surgical Sciences, Uppsala University Hospital, Sweden,King’s College London, School of Cancer and Pharmaceutical Sciences, Translational Oncology & Urology Research (TOUR), London, UK
| | - Nils P HAILER
- Section of Orthopaedics, Department of Surgical Sciences, Uppsala University Hospital, Sweden,Swedish Arthroplasty Register, Gothenburg, Sweden
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Macêdo MB, Santos VMOS, Pereira RMR, Fuller R. Association between osteoarthritis and atherosclerosis: A systematic review and meta-analysis. Exp Gerontol 2022; 161:111734. [DOI: 10.1016/j.exger.2022.111734] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Revised: 01/17/2022] [Accepted: 02/04/2022] [Indexed: 11/04/2022]
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Wadström MG, Hailer NP, Hailer YD. No increased mortality after total hip arthroplasty in patients with a history of pediatric hip disease: a matched, population-based cohort study on 4,043 patients. Acta Orthop 2021; 92:673-677. [PMID: 34392791 PMCID: PMC8635541 DOI: 10.1080/17453674.2021.1963582] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
Background and purpose - Patients with pediatric hip diseases are more comorbid than the general population and at risk of premature, secondary osteoarthritis, often leading to total hip arthroplasty (THA). We investigated whether THA confers an increased mortality in this cohort.Patients and methods - We identified 4,043 patients with a history of Legg-Calvé-Perthes disease (LCPD), slipped capital femoral epiphysis (SCFE), or developmental dysplasia of the hip (DDH) in the Swedish Hip Arthroplasty Register (SHAR) between 1992 and 2012. For each patient, we matched 5 controls from the general population for age, sex, and place of residence, and acquired information on all participants' socioeconomic background and comorbidities. Mortality after THA was estimated according to Kaplan-Meier, and Cox proportional hazard models were fitted to estimate adjusted hazard ratios (HRs) for the risk of death.Results - Compared with unexposed individuals, patients exposed to a THA due to pediatric hip disease had lower incomes, lower educational levels, and a higher degree of comorbidity but a statistically non-significant attenuation of 90-day mortality (HR 0.9; 95% CI 0.4-2.0) and a lower risk of overall mortality (HR 0.8; CI 0.7-0.9).Interpretation - Patients exposed to THA due to a history of pediatric hip disease have a slightly lower mortality than unexposed individuals. THA seems not to confer increased mortality risks, even in these specific patients with numerous risk factors.
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Affiliation(s)
- Miriam G Wadström
- Section of Orthopedics, Department of Surgical Sciences, Uppsala University, Sweden,Correspondence:
| | - Nils P Hailer
- Section of Orthopedics, Department of Surgical Sciences, Uppsala University, Sweden
| | - Yasmin D Hailer
- Section of Orthopedics, Department of Surgical Sciences, Uppsala University, Sweden
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Tischler EH, Restrepo C, Ponzio DY, Austin MS. Routine Postoperative Chemistry Panels Are Not Necessary for Most Total Joint Arthroplasty Patients. J Bone Joint Surg Am 2021; 103:968-976. [PMID: 34038395 DOI: 10.2106/jbjs.20.01530] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
BACKGROUND The routine use of traditional chemistry-7 (chem-7) laboratory tests following total joint arthroplasty (TJA) has been called into question with the advent of short-stay procedures. Our objective was to determine the incidence, risk factors, and clinical interventions associated with inpatient abnormal routine postoperative chem-7 panels. METHODS From 2015 to 2017, 3,162 patients underwent a total of 3,721 TJA procedures, including primary total hip arthroplasty (THA) (n = 1,939; 52.1%) or primary total knee arthroplasty (TKA) (n = 1,782; 47.9%). Patients underwent routine preoperative and postoperative chem-7 testing. Clinical interventions were identified. With use of mixed-effects multivariate logistic regression, potential risk factors for abnormal chemistry panel values (including preoperative chem-7 results, type of surgery, age, sex, race, comorbidities, American Society of Anesthesiologists [ASA] score, and medications) were analyzed. RESULTS The rates of abnormal preoperative laboratory results were 3.4% for sodium (Na+), 7.4% for potassium (K+), 15.8% for blood urea nitrogen (BUN), and 26.4% for creatinine (Cr). The incidence of abnormal postoperative results was low for K+ (9.7%) and higher for Na+ (25.6%), BUN (55.6%), and Cr (27.9%). Preoperative abnormal laboratory results were a significant predictor of a postoperative abnormality for Na+ (odds ratio [OR] = 2.15; 95% confidence interval [CI] = 1.82 to 2.54), K+ (OR = 4.22; 95% CI = 3.03 to 5.88), and Cr (OR = 3.00; 95% CI = 2.45 to 3.68). Bilateral TJA was associated with increased odds of abnormal postoperative Na+ (OR = 1.56; 95% CI = 1.44 to 1.68). Renal disease was associated with increased odds of abnormal postoperative Cr (OR = 15.21; 95% CI = 5.67 to 40.77). Patients taking loop diuretics had increased odds of abnormal postoperative K+ (OR = 2.10; 95% CI = 1.42 to 3.11) and Cr (OR = 2.28; 95% CI = 1.56 to 3.33). Regarding intervention, 6.7% of hypokalemic patients received potassium chloride (KCl) fluid/tablets. Forty percent of hyponatremic patients received sodium chloride (NaCl) fluid/tablets. The electrolyte-related medicine consultation rate was 0.3% (13 of 3,721). CONCLUSIONS On the basis of our findings, we recommend postoperative chem-7 testing for patients with an abnormal preoperative laboratory result (Na+, K+, BUN, Cr), preexisting renal disease, bilateral TJA, and prescribed angiotensin-converting enzyme inhibitors (ACE), angiotensin II receptor blockers (ARB), and diuretics. LEVEL OF EVIDENCE Prognostic Level IV. See Instructions for Authors for a complete description of levels of evidence.
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Affiliation(s)
- Eric H Tischler
- Rothman Orthopaedic Institute at Thomas Jefferson University, Philadelphia, Pennsylvania
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Jemt T. Implant failures and age at the time of surgery: A retrospective study on implant treatment in 2915 partially edentulous jaws. Clin Implant Dent Relat Res 2019; 21:686-692. [DOI: 10.1111/cid.12812] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2019] [Revised: 05/06/2019] [Accepted: 06/02/2019] [Indexed: 12/26/2022]
Affiliation(s)
- Torsten Jemt
- Department of Prosthetic Dentistry/Dental Materials Science; Institute of Odontology, Sahlgrenska Academy at Göteborg University; Göteborg Sweden
- Prosthodontist, Brånemark Clinic, Public Dental Health Service; Västra Götaland Sweden
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Abstract
BACKGROUND Mortality after THA and TKA is lower than expected for several years after surgery when compared with age- and sex-adjusted population data. With long-term followup (beyond approximately 10 years), some evidence has suggested that this trend reverses, such that postsurgical mortality is higher than expected as more time passes. However, the degree to which this may be the case has not been clearly established. QUESTIONS/PURPOSES In this large-registry study, we asked: What is the long-term mortality after THA and TKA compared with the expected mortality, adjusted for age, sex, and calendar year. METHODS Using data on 243,057 THAs and 363,355 TKAs performed for osteoarthritis from the Australian Orthopaedic Association National Joint Replacement Registry (AOANJRR) from 2003 to 2016, and life tables from the Australian Bureau of Statistics the Standardised Mortality Ratio (SMR), relative mortality and excess mortality (relative to the expected mortality for people of the same sex and age in the same country) was calculated separately for hips and knees. The AOANJRR contains near-complete (98%-100%) data from all hospitals in Australia performing arthroplasty but does not include followup data on people who have left the country. Followup was from the date of surgery to 13 years, mean 5.8 years. RESULTS We found a lower-than-expected mortality for THA and TKA in the early years after surgery. This association diminished over time and the mortality became higher than expected after 12 years for both THA and TKA. For THA, the excess mortality (per thousand people) increased from 11 fewer deaths (95% CI, 10-11 fewer) after 1 year to four more deaths (95% CI, 0-9 more) in the 13th year, and the SMR increased from 0.50 (95% CI, 0.48-0.52) after 1 year to 1.07 (95% CI, 0.99-1.14) in the 13th year. For TKA, the excess mortality (per thousand people) increased from 12 fewer deaths (95% CI, 12-13 fewer) after 1 year to five more deaths (95% CI 2-9 more) in the 13th year, and the SMR increased from 0.39 (95% CI, 0.37-0.40) after 1 year to 1.09 (95% CI, 1.03-1.15) in the 13th year. CONCLUSIONS Mortality after hip and knee arthroplasty is lower than expected (based on population norms) in the first 8 years to 9 years but gradually increases over time, becoming higher than expected after 12 years. The lower-than-expected mortality in the early years after surgery is likely the result of patient selection with patients undergoing primary arthroplasty having better health at the time of surgery than that of the age- and sex-matched population. The increasing mortality over time cannot be regression to the mean, as late mortality is higher than expected, moving beyond the mean. It is important to understand if there are modifiable factors associated with this increased mortality. The reasons for the change are uncertain. Factors to consider in future research include determining the effect of different patient factors on late mortality. Some of these included higher obesity rates for joint replacement patients and the association or causal impact of osteoarthritis and/or its treatment to increase late mortality in a similar manner to other forms of arthritis. There is also a possibility that the arthroplasty device itself may affect late mortality. LEVEL OF EVIDENCE Level III, therapeutic study.
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Causes of Death in Implant Patients Treated in the Edentulous Jaw: A Comparison between 2098 Deceased Patients and the Swedish National Cause of Death Register. Int J Dent 2019; 2019:7315081. [PMID: 30984265 PMCID: PMC6432731 DOI: 10.1155/2019/7315081] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2018] [Accepted: 02/14/2019] [Indexed: 01/11/2023] Open
Abstract
Background Previous research has reported an association between tooth loss and patient mortality, while the cause of death has not been elucidated. Objective The purpose was to describe and compare the cause of death in implant patients treated consecutively in the edentulous arch with a reference population. Methods Altogether, 3902 patients were included between 1986 and 2014. Data on the causes of death for deceased patients were compared to the Swedish National Cause of Death Register for a comparable time period. Standardised mortality ratios (SMRs) were calculated based on gender and age and tested for statistical significance. Results Most deceased patients (2,098) died from diseases in the circulatory system (CVD; 42%) and from cancers (26%). SMR indicated a generally increased mortality (total group) compared to the reference population during inclusion (P < 0.05; 1986–2014). Patients treated early (1986–1996) showed a lower SMR compared to patients treated later (P < 0.05; 1997–2014) especially related to CVDs. Younger patients (<60 years at surgery) showed an increased mortality due to CVDs when treated late (1997–2014; SMR = 5.4, P < 0.05). Elderly patients (>79 years at surgery) showed a significantly lower mortality in almost all observed causes of death (1986–2014; P < 0.05) with also a significantly lower mortality due to CVDs during the early period (1986–1996; SMR = 0.3, P < 0.05). Conclusion An overall increased mortality was observed for the edentulous implant patient compared to the reference population. Elderly patients (>79 years) showed significantly lower mortality for all causes of death independent of the time period of implant surgery. Younger patients (<60 years) present an increased risk for early mortality related to CVD. SMR for all causes of death increased for patients treated late (1997–2014) as compared to patients treated early (1986–1996).
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Rysinska A, Sköldenberg O, Garland A, Rolfson O, Aspberg S, Eisler T, Garellick G, Stark A, Hailer N, Gordon M. Aseptic loosening after total hip arthroplasty and the risk of cardiovascular disease: A nested case-control study. PLoS One 2018; 13:e0204391. [PMID: 30427844 PMCID: PMC6235257 DOI: 10.1371/journal.pone.0204391] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2017] [Accepted: 09/07/2018] [Indexed: 11/18/2022] Open
Abstract
Background Patients with surgically treated osteoarthritis of the hip have an increased risk of cardiovascular morbidity and mortality many years after the operation compared with controls. Our hypothesis is that this increased risk after total hip arthroplasty (THA) is mediated by development of periprosthetic osteolysis leading to aseptic loosening of the implant. Methods We conducted a nation-wide, nested, case-control study consisting of patients receiving a cemented THA due to osteoarthritis between the years 1992 and 2005. Our study population included a total of 14,430 subjects identified in the Swedish hip arthroplasty register and linked to the Swedish National Patient Register. The case group consisted of patients (n = 2,886) who underwent reoperation of the treated hip due to osteolysis or aseptic loosening at any time within five years after the index surgery. Each case was matched with four controls (n = 11,544) who had not undergone reoperation. The main outcomes were cardiovascular events i.e. myocardial infarction, heart failure and cerebral infarction according to ICD-codes and time to the first cardiovascular event during the exposure period. Outcomes were subgrouped into cardiac and cerebral events. We used regression models to calculate the incidence rates and adjusted our results for confounders. Findings Overall, 5.1% of patients had cardiac events, with slightly more overall cardiovascular events occurring in the control group (8.1% vs. 6.7%, odds ratio 0.8, 95% confidence interval (CI) 0.7 to 1.0). After adjusting for confounders, the case group had an increased relative risk of 1.3 (95% confidence interval (CI) 1.1 to 1.3) for total number of cardiovascular events. Similar effect sizes were observed for time to first event. Interpretation Patients with osteoarthritis who received THA and subsequently underwent a revision operation due to loosening had a higher relative risk of developing cardiovascular events than controls. Thus there is an association which could be explained by a common inflammatory disease pathway that requires further experimental research.
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Affiliation(s)
- Agata Rysinska
- Karolinska Institutet, Department of Clinical Sciences at Danderyd Hospital, Stockholm, Stockholm, Sweden
- * E-mail:
| | - Olof Sköldenberg
- Karolinska Institutet, Department of Clinical Sciences at Danderyd Hospital, Stockholm, Stockholm, Sweden
| | - Anne Garland
- Department of Orthopaedics, Institute of Surgical Sciences, Uppsala University Hospital, Uppsala, Sweden
| | - Ola Rolfson
- Swedish Hip Arthroplasty Register, Gothenburg, Sweden
- Department of Orthopaedics, Institute of Clinical Sciences, Sahlgrenska Academy, Gothenburg, University of Gothenburg, Gothenburg, Sweden
- Harris Orthopaedic Laboratory, Massachusetts General Hospital, Boston MA, United States of America, and Harvard Medical School, Boston, MA, United States of America
| | - Sara Aspberg
- Karolinska Institutet, Department of Clinical Sciences at Danderyd Hospital, Stockholm, Stockholm, Sweden
| | - Thomas Eisler
- Karolinska Institutet, Department of Clinical Sciences at Danderyd Hospital, Stockholm, Stockholm, Sweden
| | - Göran Garellick
- Swedish Hip Arthroplasty Register, Gothenburg, Sweden
- Department of Orthopaedics, Institute of Clinical Sciences, Sahlgrenska Academy, Gothenburg, University of Gothenburg, Gothenburg, Sweden
- Harris Orthopaedic Laboratory, Massachusetts General Hospital, Boston MA, United States of America, and Harvard Medical School, Boston, MA, United States of America
| | - Andreas Stark
- Karolinska Institutet, Department of Clinical Sciences at Danderyd Hospital, Stockholm, Stockholm, Sweden
| | - Nils Hailer
- Department of Orthopaedics, Institute of Surgical Sciences, Uppsala University Hospital, Uppsala, Sweden
| | - Max Gordon
- Karolinska Institutet, Department of Clinical Sciences at Danderyd Hospital, Stockholm, Stockholm, Sweden
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CORR Insights®: Is There a Cardiotoxicity Associated With Metallic Head Hip Prostheses? A Cohort Study in the French National Health Insurance Databases. Clin Orthop Relat Res 2018; 476:1452-1454. [PMID: 29846204 PMCID: PMC6437569 DOI: 10.1097/corr.0000000000000355] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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Cnudde P, Rolfson O, Timperley AJ, Garland A, Kärrholm J, Garellick G, Nemes S. Do Patients Live Longer After THA and Is the Relative Survival Diagnosis-specific? Clin Orthop Relat Res 2018; 476:1166-1175. [PMID: 29489471 PMCID: PMC6263594 DOI: 10.1007/s11999.0000000000000097] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND Hip replacements are successful in restoring mobility, reducing pain, and improving quality of life. However, the association between THA and the potential for increased life expectancy (as expressed by mortality rate) is less clear, and any such association could well be influenced by diagnosis and patient-related, socioeconomic, and surgical factors, which have not been well studied. QUESTIONS/PURPOSES (1) After controlling for birth year and sex, are Swedish patients who underwent THA likely to survive longer than individuals in the general population? (2) After controlling for relevant patient-related, socioeconomic/demographic factors and surgical factors, does relative survival differ across the various diagnoses for which THAs were performed in Sweden? METHODS Data from the Swedish Hip Arthroplasty Register, linked to administrative health databases, were used for this study. We identified 131,808 patients who underwent THA between January 1, 1999, and December 31, 2012. Of these, 21,755 had died by the end of followup. Patient- and surgery-specific data in combination with socioeconomic data were available for analysis. We compared patient survival (relative survival) with age- and sex-matched survival data in the entire Swedish population according to Statistics Sweden. We used multivariable modeling proceeded with a Cox proportional hazards model in transformed time. RESULTS Patients undergoing elective THA had a slightly improved survival rate compared with the general population for approximately 10 years after surgery. At 1 year after surgery, the survival in patients undergoing THA was 1% better than the expected survival (r = 1.01; 95% confidence interval [CI], 1.01-1.02; p < 0.001); at 5 years, this increased to 3% (r = 1.03; 95% CI, 1.03-1.03; p < 0.001); at 10 years, the difference was 2% (r = 1.02; 95% CI, 1.02-1.03; p < 0.001); and by 12 years, there was no difference between patients undergoing THA and the general population (r = 1.01; 95% CI, 0.99-1.02; p = 0.13). Using the diagnosis of primary osteoarthritis as a reference, hip arthroplasties performed for sequelae of childhood hip diseases had a similar survival rate (hazard ratio [HR], 1.02; 95% CI, 0.88-1.18; p = 0.77). Patients undergoing surgery for osteonecrosis of the femoral head (HR, 1.69; 95% CI, 1.60-1.79; p < 0.001), inflammatory arthritis (HR, 1.49; 95% CI, 1.38-1.61; p < 0.001), and secondary osteoarthritis (HR, 2.46; 95% CI, 2.03-2.99; p < 0.001) all had poorer relative survival. Comorbidities and the Elixhauser comorbidity index had a negative association with relative survival. Level of achieved education (middle level of education: HR, 0.90, 95% CI, 0.87-0.93, p < 0.001; high level: 0.76, 95% CI, 0.73-0.80, p < 0.001) and marital status (single status: HR, 1.33; 95% CI, 1.28-1.38; p < 0.001) were also negatively associated with survival. CONCLUSIONS Whereas it has been known that in most patients, THA improves quality of life, this study demonstrates that it also is associated with a slightly increased life expectancy that lasts for approximately 10 years after surgery, especially among patients whose diagnosis was primary osteoarthritis. This adds further proof of a health-economic value for this surgical intervention. The reasons for the increase in relative survival are unknown but are probably multifactorial. LEVEL OF EVIDENCE Level III, therapeutic study.
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Affiliation(s)
- Peter Cnudde
- P. Cnudde, O. Rolfson, A. Garland, J. Kärrholm, G. Garellick, S. Nemes, Swedish Hip Arthroplasty Register, Centre of Registers Västra Götaland, Gothenburg, Sweden A. J. Timperley, Hip Unit, Princess Elizabeth Orthopaedic Centre, Royal Devon & Exeter Hospital, Exeter, UK P. Cnudde, O. Rolfson, J. Kärrholm, G. Garellick, S. Nemes, Department of Orthopaedics, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden A. Garland, Department of Orthopaedics, Institute of Surgical Sciences, Uppsala University Hospital, Uppsala, Sweden
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Lübbeke A, Silman AJ, Prieto-Alhambra D, Adler AI, Barea C, Carr AJ. The role of national registries in improving patient safety for hip and knee replacements. BMC Musculoskelet Disord 2017; 18:414. [PMID: 29037237 PMCID: PMC5644143 DOI: 10.1186/s12891-017-1773-0] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/08/2016] [Accepted: 10/04/2017] [Indexed: 12/12/2022] Open
Abstract
Background The serious adverse events associated with metal on metal hip replacements have highlighted the importance of improving methods for monitoring surgical implants. The new European Union (EU) device regulation will enforce post-marketing surveillance based on registries among other surveillance tools. Europe has a common regulatory environment, a common market for medical devices, and extensive experience with joint replacement registries. In this context, we elaborate how joint replacement registries, while building on existing structure and data, can better ensure safety and balance risks and benefits. Main text Actions to improve registry-based implant surveillance include: enriching baseline and diversifying outcomes data collection; improving methodology to limit bias; speeding-up failure detection by active real-time monitoring; implementing risk-benefit analysis; coordinating collaboration between registries; and translating knowledge gained from the data into clinical decision-making and public health policy. Conclusions The changes proposed here will improve patient safety, enforce the application of the new legal EU requirements, augment evidence, improve clinical decision-making, facilitate value-based health-care delivery, and provide up-to-date guidance for public health.
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Affiliation(s)
- Anne Lübbeke
- Division of Orthopaedic Surgery and Traumatology, Geneva University Hospitals and Geneva University, Geneva, Switzerland. .,Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, UK.
| | - Alan J Silman
- Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, UK
| | - Daniel Prieto-Alhambra
- Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, UK
| | - Amanda I Adler
- Wolfson Diabetes and Endocrine Clinic, Institute of Metabolic Science, Addenbrooke's Hospital, Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK.,National Institute for Health and Care Excellence, 10 Spring Gardens, London, UK
| | - Christophe Barea
- Division of Orthopaedic Surgery and Traumatology, Geneva University Hospitals and Geneva University, Geneva, Switzerland
| | - Andrew J Carr
- Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, UK
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Claßen T, Scheid C, Landgraeber S, Jäger M. Besonderheiten beim elektiven Hüftgelenkersatz des älteren Menschen. DER ORTHOPADE 2016; 46:25-33. [DOI: 10.1007/s00132-016-3364-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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Tootsi K, Märtson A, Zilmer M, Paapstel K, Kals J. Increased arterial stiffness in patients with end-stage osteoarthritis: a case-control study. BMC Musculoskelet Disord 2016; 17:335. [PMID: 27515421 PMCID: PMC4982219 DOI: 10.1186/s12891-016-1201-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/11/2015] [Accepted: 08/03/2016] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND Both osteoarthritis (OA) and cardiovascular diseases (CVD) are prevalent conditions which often co-exist. Vascular involvement in the pathogenesis of these diseases, as well as increased cardiovascular risk in OA patients give occasion to investigate arterial stiffness in OA. The aim of this study was to establish associations between OA and arterial stiffness. METHODS The characteristics of arterial stiffness were measured with Sphygmocor and HDI devices in 48 patients (age 63 ± 7 years (mean ± SD)) with end-stage OA awaiting knee and hip replacement and in 49 age and gender matched controls (61 ± 7 years). Independent Student's t-test or the Mann-Whitney U test was used to compare means between the groups. Correlation between variables was determined using Pearson's or Spearman's correlation analysis and stepwise multiple regression analysis. RESULTS Carotid-femoral pulse wave velocity (car-fem PWV) was increased in the patients with OA compared to the controls (9.6 ± 2.4 and 8.4 ± 1.9 m/s, p = 0.015 respectively). High-sensitivity C-reactive protein and white blood cells count were significantly higher in the OA patients compared with the controls (1.80 ± 1.10 and 1.48 ± 1.32 mg/l, p = 0.042; 6.5 ± 1.5 and 5.6 ± 1.9 10(9)/l, p = 0.001 respectively). In multiple regression analysis age (p < 0.001), mean arterial blood pressure (p = <0.001) and OA status (p = 0.029) were found to be independent predictors of car-fem PWV. CONCLUSIONS This study showed that patients with OA had increased aortic stiffness compared to non-OA controls. The potential link between arterial stiffening and OA suggests that vascular alterations are involved in OA pathogenesis and could be responsible for increased cardiovascular risk in end-stage OA patients.
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Affiliation(s)
- Kaspar Tootsi
- Department of Traumatology and Orthopaedics, University of Tartu, Puusepa street 8, Tartu, Estonia.
| | - Aare Märtson
- Department of Traumatology and Orthopaedics, University of Tartu, Puusepa street 8, Tartu, Estonia.,Clinic of Traumatology and Orthopaedics, Tartu University Hospital, Tartu, Estonia
| | - Mihkel Zilmer
- Institute of Biomedicine and Translational Medicine, Centre of Excellence for Genomics and Translational Medicine, University of Tartu, Tartu, Estonia
| | - Kaido Paapstel
- Department of Vascular Surgery, Tartu University Hospital, Tartu, Estonia
| | - Jaak Kals
- Institute of Biomedicine and Translational Medicine, Centre of Excellence for Genomics and Translational Medicine, University of Tartu, Tartu, Estonia.,Department of Vascular Surgery, Tartu University Hospital, Tartu, Estonia.,Department of Surgery, University of Tartu, Tartu, Estonia
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Erratum: Increased Long-Term Cardiovascular Risk After Total Hip Arthroplasty: A Nationwide Cohort Study: Erratum. Medicine (Baltimore) 2016; 95:e373b. [PMID: 31265587 PMCID: PMC4902441 DOI: 10.1097/01.md.0000484043.51237.3b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
[This corrects the article DOI: 10.1097/MD.0000000000002662.].
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