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Raspanti F, Zanna L, Sangaletti R, Innocenti M, Benazzo F, Civinini R, Mugnaini M. The role of acetabular cement augmentation in 2-stage revision arthroplasty for prosthetic joint infection of the hip. Arch Orthop Trauma Surg 2024:10.1007/s00402-024-05541-w. [PMID: 39259308 DOI: 10.1007/s00402-024-05541-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/03/2024] [Accepted: 09/03/2024] [Indexed: 09/13/2024]
Abstract
INTRODUCTION In the treatment of chronic prosthetic joint infection (PJI) of the hip, two-stage exchange arthroplasty is commonly employed. Various spacer designs, including Hemi-Spacers and Articulating Spacers, are utilized during this process. However, these spacers are associated with a high rate of mechanical complications and pose a risk of progressive bone loss. This study aims to compare these two types of spacers in terms of mechanical complications, center of rotation (COR) restoration, and preservation of acetabular bone stock. MATERIALS AND METHODS From 2019 to 2022, patients who underwent two-stage exchange arthroplasty for hip PJI across three hospitals were retrospectively reviewed. Data including demographic, clinical, and microbiological information were collected. Radiographic imaging was analyzed to measure acetabular bone erosion, COR, and periacetabular bone resected. Additionally, the average surgical time in the first and second stages, mechanical complications, and the mean duration of the inter-stage period were recorded. RESULTS Forty patients were divided into two groups: Group A (Articulating Spacer, n = 23) received a preformed femur spacer with acetabular cement augmentation, while Group B (Hemi-Spacer, n = 17) received a preformed femur spacer alone. Acetabular cement augmentation slightly prolonged the first stage but facilitated a faster second stage during subsequent reimplantation. Spacer dislocation rates were 8.7% in Group A and 17.6% in Group B during the interstage period. Radiographic analysis revealed a statistically significant greater degree of acetabular erosion in Group B. A significant difference in Vertical-COR differential was observed, with a more proximalized revision cup compared to the primary cup in Group B, and Horizontal-COR values closer to the native hip in Group A. CONCLUSIONS Dynamic spacers with acetabular cement augmentation help preserve peri-acetabular bone stock and prevent progression of acetabular bone erosion during the inter-stage period. Additionally, these spacers reduce the dislocation rates, making reimplantation easier and leading to better restoration of hip biomechanics during the second procedure.
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Affiliation(s)
- Francesco Raspanti
- Department of Orthopaedic Surgery, Santa Maria Annunziata Hospital, Azienda USL Toscana Centro, Bagno A Ripoli, FI, Italy
| | - Luigi Zanna
- Department of Orthopaedic Surgery, Santa Maria Annunziata Hospital, Azienda USL Toscana Centro, Bagno A Ripoli, FI, Italy.
| | - Rudy Sangaletti
- Sezione di Chirurgia Protesica ad Indirizzo Robotico - Unità di Traumatologia dello Sport, U.O.C Ortopedia e Traumatologia, Fondazione Poliambulanza, Via Bissolati 57, Brescia, 25124, Italy
| | - Matteo Innocenti
- Department of General Orthopaedics, University of Florence, A.O.U. Careggi CTO - Largo Palagi 1, Florence, 50139, Italy
| | - Francesco Benazzo
- Sezione di Chirurgia Protesica ad Indirizzo Robotico - Unità di Traumatologia dello Sport, U.O.C Ortopedia e Traumatologia, Fondazione Poliambulanza, Via Bissolati 57, Brescia, 25124, Italy
- IUSS Istituto Universitario di Studi Superiori, Pavia, Italy
| | - Roberto Civinini
- Department of General Orthopaedics, University of Florence, A.O.U. Careggi CTO - Largo Palagi 1, Florence, 50139, Italy
| | - Marco Mugnaini
- Department of Orthopaedic Surgery, Santa Maria Annunziata Hospital, Azienda USL Toscana Centro, Bagno A Ripoli, FI, Italy
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Young JJ, Zywiel MG, Skou ST, Chandran V, Davey JR, Gandhi R, Mahomed NN, Syed K, Veillette CJH, Rampersaud YR, Perruccio AV. Total Hip Arthroplasty Versus Education and Exercise: A Propensity-Matched Analysis of 266 Patients Who Have Hip Osteoarthritis. J Arthroplasty 2024; 39:S261-S269. [PMID: 38697319 DOI: 10.1016/j.arth.2024.04.072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Revised: 04/25/2024] [Accepted: 04/25/2024] [Indexed: 05/04/2024] Open
Abstract
BACKGROUND Total hip arthroplasty (THA) for osteoarthritis (OA) is a major health system cost. Education and exercise (Edu + Ex) programs may reduce the number of THAs needed, but supporting data are limited. This study aimed to estimate the treatment effect of THA versus Edu + Ex on pain, function, and quality of life outcomes 3 and 12 months after treatment initiation for hip OA. METHODS Patients who had hip OA who underwent THA or an Edu + Ex program were included in this propensity-matched study. In 778 patients (Edu + Ex, n = 303; THA, n = 475), propensity scores were based on pretreatment characteristics, and patients were matched on a 1:1 ratio. Between-group treatment effects (pain, function, and quality of life) were estimated as the mean difference (MD) in change from pretreatment to 3-month and 12-month follow-up using linear mixed models. RESULTS The matched sample consisted of 266 patients (Edu + Ex, n = 133; THA, n = 133) who were balanced on all pretreatment characteristics except opioid use. At 12-month follow-up, THA resulted in significantly greater improvements in pain (MD 35.4; 95% confidence interval [CI] 31.4 to 39.4), function (MD 30.5; 95% CI 26.3 to 34.7), and quality of life (MD 33.6; 95% CI 28.8 to 38.4). Between 17% and 30% of patients receiving Edu + Ex experienced a surgical threshold for clinically meaningful improvement in outcomes, compared to 84% and 90% of THA patients. CONCLUSIONS A THA provides greater improvements in pain, function, and quality of life. A notable proportion of Edu + Ex patients had clinically meaningful improvements, suggesting Edu + Ex may result in THA deferral in some patients, but confirmatory trials are needed.
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Affiliation(s)
- James J Young
- Schroeder Arthritis Institute, Krembil Research Institute, University Health Network, Toronto, Canada; Department of Sports Science and Clinical Biomechanics, Center for Muscle and Joint Health, University of Southern Denmark, Odense, Denmark
| | - Michael G Zywiel
- Schroeder Arthritis Institute, Krembil Research Institute, University Health Network, Toronto, Canada; Institute of Health Policy, Management and Evaluation, Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada; Faculty of Medicine, Department of Surgery, University of Toronto, Toronto, Ontario, Canada
| | - Søren T Skou
- Department of Sports Science and Clinical Biomechanics, Center for Muscle and Joint Health, University of Southern Denmark, Odense, Denmark; The Research and Implementation Unit PROgrez, Department of Physiotherapy and Occupational Therapy, Næstved-Slagelse-Ringsted Hospitals, Slagelse, Denmark
| | - Vinod Chandran
- Schroeder Arthritis Institute, Krembil Research Institute, University Health Network, Toronto, Canada; Department of Medicine, Division of Rheumatology, University of Toronto, Toronto, Canada; Institute of Medical Science, University of Toronto, Toronto, Canada; Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Canada
| | - J Rod Davey
- Schroeder Arthritis Institute, Krembil Research Institute, University Health Network, Toronto, Canada; Faculty of Medicine, Department of Surgery, University of Toronto, Toronto, Ontario, Canada
| | - Rajiv Gandhi
- Schroeder Arthritis Institute, Krembil Research Institute, University Health Network, Toronto, Canada; Faculty of Medicine, Department of Surgery, University of Toronto, Toronto, Ontario, Canada
| | - Nizar N Mahomed
- Schroeder Arthritis Institute, Krembil Research Institute, University Health Network, Toronto, Canada; Institute of Health Policy, Management and Evaluation, Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada; Faculty of Medicine, Department of Surgery, University of Toronto, Toronto, Ontario, Canada
| | - Khalid Syed
- Schroeder Arthritis Institute, Krembil Research Institute, University Health Network, Toronto, Canada
| | - Christian J H Veillette
- Schroeder Arthritis Institute, Krembil Research Institute, University Health Network, Toronto, Canada; Faculty of Medicine, Department of Surgery, University of Toronto, Toronto, Ontario, Canada
| | - Y Raja Rampersaud
- Schroeder Arthritis Institute, Krembil Research Institute, University Health Network, Toronto, Canada; Faculty of Medicine, Department of Surgery, University of Toronto, Toronto, Ontario, Canada
| | - Anthony V Perruccio
- Schroeder Arthritis Institute, Krembil Research Institute, University Health Network, Toronto, Canada; Institute of Health Policy, Management and Evaluation, Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada; Faculty of Medicine, Department of Surgery, University of Toronto, Toronto, Ontario, Canada
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Steinbeck V, Bischof AY, Schöner L, Langenberger B, Kuklinski D, Geissler A, Pross C, Busse R. Gender health gap pre- and post-joint arthroplasty: identifying affected patient-reported health domains. Int J Equity Health 2024; 23:44. [PMID: 38413981 PMCID: PMC10900674 DOI: 10.1186/s12939-024-02131-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Accepted: 02/15/2024] [Indexed: 02/29/2024] Open
Abstract
BACKGROUND As patient-reported outcomes (PROs) gain prominence in hip and knee arthroplasty (HA and KA), studies indicate PRO variations between genders. Research on the specific health domains particularly impacted is lacking. Hence, we aim to quantify the gender health gap in PROs for HA/KA patients, differentiating between general health, health-related quality of life (HrQoL), physical functioning, pain, fatigue, and depression. METHODS The study included 3,693 HA patients (1,627 men, 2,066 women) and 3,110 KA patients (1,430 men, 1,680 women) receiving surgery between 2020 to 2021 in nine German hospitals, followed up until March 2022. Questionnaires used were: EQ-VAS, EQ-5D-5L, HOOS-PS, KOOS-PS, PROMIS-F-SF, PROMIS-D-SF, and a joint-specific numeric pain scale. PROs at admission, discharge, 12-months post-surgery, and the change from admission to 12-months (PRO-improvement) were compared by gender, tested for differences, and assessed using multivariate linear regressions. To enable comparability, PROs were transformed into z-scores (standard deviations from the mean). RESULTS Observed differences between genders were small in all health domains and differences reduced over time. Men reported significantly better health versus women pre-HA (KA), with a difference of 0.252 (0.224) standard deviations from the mean for pain, 0.353 (0.243) for fatigue (PROMIS-F-SF), 0.327 (0.310) for depression (PROMIS-D-SF), 0.336 (0.273) for functionality (H/KOOS-PS), 0.177 (0.186) for general health (EQ-VAS) and 0.266 (0.196) for HrQoL (EQ-5D-5L). At discharge, the gender health gap reduced and even disappeared for some health dimensions since women improved in health to a greater extent than men. No gender health gap was observed in most PRO-improvements and at month 12. CONCLUSIONS Men experiencing slightly better health than women in all health dimensions before surgery while experiencing similar health benefits 12-months post-surgery, might be an indicator of men receiving surgery inappropriately early, women unnecessarily late or both. As studies often investigate the PRO-improvement, they miss pre-surgery gender differences, which could be an important target for improvement initiatives in patient-centric care. Moreover, future research on cutoffs for meaningful between-group PRO differences per measurement time would aid the interpretation of gender health disparities. TRIAL REGISTRATION German Register for Clinical Trials, DRKS00019916, 26 November 2019.
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Affiliation(s)
- Viktoria Steinbeck
- Department of Healthcare Management, School of Economics and Management, Technical University Berlin, Strasse Des 17 Juni 135, Berlin, 10623, Germany.
| | - Anja Yvonne Bischof
- School of Medicine, Chair of Health Economics, Policy and Management, University of St. Gallen, St. Gallen, Switzerland
| | - Lukas Schöner
- Department of Healthcare Management, School of Economics and Management, Technical University Berlin, Strasse Des 17 Juni 135, Berlin, 10623, Germany
| | - Benedikt Langenberger
- Department of Healthcare Management, School of Economics and Management, Technical University Berlin, Strasse Des 17 Juni 135, Berlin, 10623, Germany
| | - David Kuklinski
- School of Medicine, Chair of Health Economics, Policy and Management, University of St. Gallen, St. Gallen, Switzerland
| | - Alexander Geissler
- School of Medicine, Chair of Health Economics, Policy and Management, University of St. Gallen, St. Gallen, Switzerland
| | - Christoph Pross
- Department of Healthcare Management, School of Economics and Management, Technical University Berlin, Strasse Des 17 Juni 135, Berlin, 10623, Germany
| | - Reinhard Busse
- Department of Healthcare Management, School of Economics and Management, Technical University Berlin, Strasse Des 17 Juni 135, Berlin, 10623, Germany
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Parperis K, Lampi M, Constantinou M, Bhattarai B. Outcomes of total hip arthroplasty in calcium pyrophosphate deposition disease patients. Semin Arthritis Rheum 2023; 63:152300. [PMID: 37931491 DOI: 10.1016/j.semarthrit.2023.152300] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2023] [Revised: 10/22/2023] [Accepted: 10/26/2023] [Indexed: 11/08/2023]
Abstract
OBJECTIVE We aim to examine the demographics, clinical characteristics, outcomes, and resource utilization following total hip arthroplasty (THA) in patients with and without calcium pyrophosphate deposition (CPPD) disease. METHODS We queried the National Inpatient Sample database to identify patients who underwent THA between 2006 and 2014. The ICD-9 code 81.51 was used to determine the patients who underwent THA, and of those, we classified 2 groups of patients: (i) those with ICD-9 codes defining CPPD and (ii) those without any CPPD code. Data collection included patient demographics and comorbidities. Outcomes post-THA were mortality, length of stay (LOS), and costs. Associations between CPPD and specific morbidity were evaluated with chi-square tests. T tests were used for continuous variables. RESULTS Among the 4,111,808 patients who underwent THA, 6198 (0.15 %) had CPPD, with a mean age of 77 years and 64.2 % were females. CPPD patients were more likely to be older (mean age 77 vs 72.7 years; p<0.001) than non-CPPD patients. The Charlson Comorbidity Index score ≥ 2 was more frequently seen in CPPD, however, the mortality post-THA was lower in the CPPD patients (0.7 % vs 1.7 %, OR 0.35, 95 % CI 0.26- 0.47). THA in CPPD patients was associated with a longer mean length of stay (LOS) (6.04 vs 5.15 days, OR 1.15, 95 % CI 1.09-1.22) while mean total charges were not statistically different between the 2 groups (p = 0.344). CPPD patients were more likely to be discharged to rehabilitation or other nursing facilities (42.5 % vs 35.3 %, p<0.001). The number of THA procedures increased in both CPPD and non-CPPD patients over time. CONCLUSIONS CPPD patients who underwent THA were more likely to be older, with a greater comorbidity burden, longer LOS and discharged to a non-home setting.
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Affiliation(s)
- Konstantinos Parperis
- Department of Medicine, Division of Rheumatology University of Arizona College of Medicine Phoenix, AZ, USA; University of Cyprus Medical School, Nicosia, Cyprus
| | - Marios Lampi
- University of Cyprus Medical School, Nicosia, Cyprus
| | | | - Bikash Bhattarai
- Department of Research, Valleywise Health, Department of Obstetrics and Gynecology, University of Arizona College of Medicine Phoenix, Department of Clinical Research and Public Health, Creighton University School of Medicine, Arizona, USA
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Dell'Isola A, Nero H, Dahlberg LE, Ignjatovic MM, Lohmander LS, Cronström A, Kiadaliri A. Within-person change in patient-reported outcomes and their association with the wish to undergo joint surgery during a digital first-line intervention for osteoarthritis. Osteoarthritis Cartilage 2023; 31:1257-1264. [PMID: 37268286 DOI: 10.1016/j.joca.2023.05.011] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Revised: 05/10/2023] [Accepted: 05/19/2023] [Indexed: 06/04/2023]
Abstract
AIM To study the association between within-person changes in patient-reported outcomes (PROMs) and wish for joint surgery during participation in a digital first-line intervention comprising exercise and education for knee/hip osteoarthritis (OA). METHODS Retrospective observational registry study. Participants enrolled between June 1, 2018 and October 30, 2021, with follow-up data at three months (n = 13,961). We used asymmetric fixed effect (conditional) logistic regressions to study the association between change in wish to undergo surgery at last available time point (3, 6, 9, or 12 months) and improvement or worsening of PROMs pain (0-10), quality of life (QoL) (EQ5D-5L, 0.243-0.976), overall health (0-10), activity impairment (0-10), walking difficulties (yes/no), fear of movement (yes/no), and Knee/Hip injury and Osteoarthritis Outcome Score 12 Items (KOOS-12/HOOS-12, 0-100) function and QoL subscales. RESULTS The proportion of participants wishing to undergo surgery declined by 2% (95% CI: 1.9, 3.0), from 15.7% at the baseline to 13.3% at 3 months. Generally, improvements in PROMs were associated with reduced likelihood of wishing for surgery, while worsening was associated with increased likelihood. For pain, activity impairment EQ-5D and KOOS/HOOS QoL, a worsening led to a change in the probability of wish for surgery of larger absolute magnitude than an improvement in the same PROM. CONCLUSIONS Within-person improvements in PROMs are associated with reduced wish for surgery while worsenings with an increased wish for surgery. Larger improvements in PROMs may be needed to match the magnitude of the change in wish for surgery associated with a worsening in the same PROM.
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Affiliation(s)
- Andrea Dell'Isola
- Clinical Epidemiology Unit, Department of Clinical Sciences Lund, Orthopedics, Lund University, Lund, Sweden.
| | - Håkan Nero
- Department of Clinical Sciences Lund, Orthopedics, Lund University, Lund, Sweden; Joint Academy, Malmö, Sweden.
| | - Leif E Dahlberg
- Department of Clinical Sciences Lund, Orthopedics, Lund University, Lund, Sweden; Joint Academy, Malmö, Sweden.
| | | | - L Stefan Lohmander
- Department of Clinical Sciences Lund, Orthopedics, Lund University, Lund, Sweden; Joint Academy, Malmö, Sweden.
| | - Anna Cronström
- Department of Health Sciences, Lund University, Lund, Sweden; Department of Community Medicine and Rehabilitation, Umeå University, Umeå, Sweden.
| | - Ali Kiadaliri
- Clinical Epidemiology Unit, Department of Clinical Sciences Lund, Orthopedics, Lund University, Lund, Sweden; Joint Academy, Malmö, Sweden.
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Chaudhry YP, Mekkawy KL, Wenzel A, Campbell C, Sterling RS, Khanuja HS. Comparing Pain and Pain Coping Mechanisms in Patients Undergoing Total Joint Arthroplasty as Part of a Mission Trip to Those in the United States. J Arthroplasty 2023; 38:1700-1704.e6. [PMID: 37054927 DOI: 10.1016/j.arth.2023.04.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/20/2022] [Revised: 03/28/2023] [Accepted: 04/03/2023] [Indexed: 04/15/2023] Open
Abstract
BACKGROUND Access to total joint arthroplasty can be difficult in low-resource settings. Service trips are conducted to provide arthroplasty care to populations in need around the world. This study aimed to compare the pain, function, surgical expectations, and coping mechanisms of patients from one such service trip to the United States. METHODS In 2019, the Operation Walk program conducted a service trip in Guyana during which 50 patients had hip or knee arthroplasties. Patient demographics, patient-reported outcome measures, questionnaires assessing pain attitudes and coping, and pain visual analog scales were collected preoperatively and at 3 months postoperatively. These outcomes were compared with a matched cohort of elective total joint arthroplasty at a US tertiary care medical center. There were 37 patients matched between the 2 cohorts. RESULTS The mission cohort had significantly lower preoperative self-reported function scores than the US cohort (38.3 versus 47.5, P = .003), as well as a significantly larger improvement at 3 months (42.4 versus 26.4, P = .014). The mission cohort had significantly higher initial pain (8.0 versus 7.0, P = .015), but there were no differences with regard to pain at 3 months (P = .420) or change in pain (P = .175). The mission cohort had significantly greater preoperative scores in pain attitude and coping responses. CONCLUSION Patients in low-resource settings were more likely to have preoperative functional limitations and pain, and they coped with pain through prayer. Understanding the key differences between these 2 types of populations and how they approach pain and functional limitations may help improve care for each group. LEVEL OF EVIDENCE II, prospective study.
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Affiliation(s)
- Yash P Chaudhry
- Department of Orthopaedic Surgery, Philadelphia College of Osteopathic Medicine, Philadelphia, Pennsylvania
| | - Kevin L Mekkawy
- Department of Orthopaedic Surgery, The Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Alyssa Wenzel
- Department of Orthopaedic Surgery, The Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Claudia Campbell
- Psychiatry and Behavioral Sciences, The Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Robert S Sterling
- Department of Orthopaedic Surgery, The Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Harpal S Khanuja
- Department of Orthopaedic Surgery, The Johns Hopkins University School of Medicine, Baltimore, Maryland
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Thomas V, Taeymans J, Lutz N. Optimising the current model of care for knee osteoarthritis with the implementation of guideline recommended non-surgical treatments: a model-based health economic evaluation. Swiss Med Wkly 2023; 153:40059. [PMID: 37096837 DOI: 10.57187/smw.2023.40059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/26/2023] Open
Abstract
AIMS OF THE STUDY Structured exercise, education, weight management and painkiller prescription are guideline recommended non-surgical treatments for patients suffering from knee osteoarthritis. Despite its endorsement, uptake of guideline recommended non-surgical treatments remains low. It is unknown whether the implementation of these treatments into the current model of care for knee osteoarthritis would be cost-effective from a Swiss statutory healthcare perspective. We therefore aimed to (1) assess the incremental cost-effectiveness ratio of an optimised model of care incorporating guideline recommended non-surgical treatments in adults with knee osteoarthritis and (2) the effect of total knee replacement (TKR) delay with guideline recommended non-surgical treatments on the cost-effectiveness of the overall model of care. METHODS A Markov model from the Swiss statutory healthcare perspective was used to compare an optimised model of care incorporating guideline recommended non-surgical treatments versus the current model of care without standardised guideline recommended non-surgical treatments. Costs were derived from two Swiss health insurers, a national database, and a reimbursement catalogue. Utility values and transition probabilities were extracted from clinical trials and national population data. The main outcome was the incremental cost-effectiveness ratio for three scenarios: "base case" (current model of care vs optimised model of care with no delay of total knee replacement), "two-year delay" (current model of care vs optimised model of care + two-year delay of total knee replacement) and "five-year delay" (current model of care vs optimised model of care + five-year delay of total knee replacement). Costs and utilities were discounted at 3% per year and a time horizon of 70 years was chosen. Probabilistic sensitivity analyses were conducted. RESULTS The "base case" scenario led to 0.155 additional quality-adjusted life years (QALYs) per person at an additional cost per person of CHF 341 (ICER = CHF 2,203 / QALY gained). The "two-year delay" scenario led to 0.134 additional QALYs and CHF -14 cost per person. The "five-year delay" scenario led to 0.118 additional QALYs and CHF -501 cost per person. Delay of total knee replacement by two and five years led to an 18% and 36% reduction of revision surgeries, respectively, and had a cost-saving effect. CONCLUSION According to this Markov model, the optimisation of the current model of care by implementing guideline recommended non-surgical treatments would likely be cost-effective from a statutory healthcare perspective. If implementing guideline recommended non-surgical treatments delays total knee replacement by two or five years, the amount of revision surgeries may be reduced.
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Affiliation(s)
- Vetsch Thomas
- Department of Health, Bern University of Applied Sciences, Discipline of Physiotherapy, Bern, Switzerland
| | - Jan Taeymans
- Department of Health, Bern University of Applied Sciences, Discipline of Physiotherapy, Bern, Switzerland
- Faculty of Sports and Rehabilitation Sciences, Vrije Universiteit Brussel, Brussels, Belgium
| | - Nathanael Lutz
- Department of Health, Bern University of Applied Sciences, Discipline of Physiotherapy, Bern, Switzerland
- Faculty of Sports and Rehabilitation Sciences, Vrije Universiteit Brussel, Brussels, Belgium
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Marder RS, Shah NV, Naziri Q, Maheshwari AV. The impact of surgical trainee involvement in total knee arthroplasty: a systematic review of surgical efficacy, patient safety, and outcomes. EUROPEAN JOURNAL OF ORTHOPAEDIC SURGERY & TRAUMATOLOGY : ORTHOPEDIE TRAUMATOLOGIE 2023; 33:255-298. [PMID: 35022881 DOI: 10.1007/s00590-021-03179-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2021] [Accepted: 11/27/2021] [Indexed: 11/29/2022]
Abstract
PURPOSE Trainee involvement in patient care has raised concerns about the potential risk of adverse outcomes and harming patients. We sought to analyze the impact and potential consequence of surgical trainee involvement in total knee arthroplasty (TKA) procedures in terms of surgical efficacy, patient safety, and functional outcomes. METHODS We systematically reviewed Medline/PubMed, EMBASE, the Cochrane library, and Scopus databases in April 2021. Eligible studies reported on the impact of trainee participation in TKA procedures performed with and without such involvement. RESULTS Twenty-three publications met our eligibility criteria and were included in our study. These studies reported on 132,624 surgeries completed on 132,416 patients. Specifically, 23,988 and 108,636 TKAs were performed with and without trainee involvement, respectively. The mean operative times for procedures with (n = 19,573) and without (n = 94,581) trainee involvement were 99.77 and 85.05 min, respectively. Both studies that reported data on cost of TKAs indicated a significant increase (p < 0.001) associated with procedures completed by teaching hospitals compared to private practices. Mean overall complication rates were 7.20% and 7.36% for TKAs performed with (n = 9,386) and without (n = 31,406) trainees. Lastly, the mean Knee Society Scale (KSS) knee scores for TKAs with (n = 478) and without (n = 806) trainee involvement were similar; 82.81 and 82.71, respectively. CONCLUSION Our systematic review concurred with previous studies that reported trainee involvement during TKAs increases the mean operative time. However, the overall complication rates and functional outcomes were similar. Larger studies with a better methodology and higher level of evidence are still needed for a resolute conclusion.
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Affiliation(s)
- Ryan S Marder
- Department of Orthopaedic Surgery and Rehabilitation Medicine, Downstate Medical Center, State University of New York (SUNY, 450 Clarkson Ave, MSC 30, Brooklyn, NY, 11203, USA
| | - Neil V Shah
- Department of Orthopaedic Surgery and Rehabilitation Medicine, Downstate Medical Center, State University of New York (SUNY, 450 Clarkson Ave, MSC 30, Brooklyn, NY, 11203, USA
| | - Qais Naziri
- Department of Orthopaedic Surgery and Rehabilitation Medicine, Downstate Medical Center, State University of New York (SUNY, 450 Clarkson Ave, MSC 30, Brooklyn, NY, 11203, USA
| | - Aditya V Maheshwari
- Department of Orthopaedic Surgery and Rehabilitation Medicine, Downstate Medical Center, State University of New York (SUNY, 450 Clarkson Ave, MSC 30, Brooklyn, NY, 11203, USA.
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Torrente-Jimenez RS, Feijoo-Cid M, Rivero-Santana AJ, Perestelo-Pérez L, Torres-Castaño A, Ramos-García V, Bilbao A, Serrano-Aguilar P. Gender differences in the decision-making process for undergoing total knee replacement. PATIENT EDUCATION AND COUNSELING 2022; 105:3459-3465. [PMID: 36075809 DOI: 10.1016/j.pec.2022.08.014] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Revised: 08/18/2022] [Accepted: 08/21/2022] [Indexed: 06/15/2023]
Abstract
OBJECTIVE To assess gender differences in the decision-making process for treatment of knee osteoarthritis (OA). METHODS A secondary analysis of a randomized trial was conducted (n = 193). Knowledge of OA and total knee replacement (TKR), decisional conflict, satisfaction with the decision-making process, treatment preference and TKR uptake 6 months later were compared by gender. Multivariate regression models were developed to identify gender-specific predictors. RESULTS Women showed less knowledge (MD = -7.68, 95% CI: -13.9, -1.46, p = 0.016), reported less satisfaction (MD = -6.95, 95% CI: -11.7, -2.23, p = 0.004) and gave more importance to avoiding surgery (U = 2.09, p = 0.019). In women, more importance attributed to the time needed to relieve symptoms significantly reduced the odds of surgery (OR = 0.76, p = 0.016). CONCLUSION The provision of information and/or promotion of shared decision-making could be of lower quality in female patients, although other explanations such as differences in information needs or preference for involvement in decision-making cannot be ruled out with the current evidence. Given the study's limitations, especially regarding the sample size, further confirmation is needed. PRACTICE IMPLICATIONS A systematic, shared decision-making approach in consultation is needed to avoid potential gender-based biases.
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Affiliation(s)
| | - Maria Feijoo-Cid
- Department of Nursing, Faculty of Medicine, Universitat Autònoma de Barcelona, Barcelona, Spain; Grup de Recerca Multidisciplinar en Salut i Societat (GREMSAS), (2017 SGR 917), Barcelona, Spain.
| | - Amado Javier Rivero-Santana
- Fundación Canaria Instituto de Investigación Sanitaria de Canarias (FIISC), Canary Islands, Spain; Health Services Research on Chronic Patients Network (REDISSEC), Spain.
| | - Lilisbeth Perestelo-Pérez
- Health Services Research on Chronic Patients Network (REDISSEC), Spain; Evaluation Unit of the Canary Islands Health Service (SESCS), Canary Islands, Spain.
| | - Alezandra Torres-Castaño
- Fundación Canaria Instituto de Investigación Sanitaria de Canarias (FIISC), Canary Islands, Spain; Health Services Research on Chronic Patients Network (REDISSEC), Spain.
| | - Vanesa Ramos-García
- Fundación Canaria Instituto de Investigación Sanitaria de Canarias (FIISC), Canary Islands, Spain; Health Services Research on Chronic Patients Network (REDISSEC), Spain.
| | - Amaia Bilbao
- Health Services Research on Chronic Patients Network (REDISSEC), Spain; Osakidetza Basque Health Service, Basurto University Hospital, Research and Innovation Unit, Bilbao, Spain; Kronikgune Institute for Health Services Research, Barakaldo, Spain.
| | - Pedro Serrano-Aguilar
- Health Services Research on Chronic Patients Network (REDISSEC), Spain; Evaluation Unit of the Canary Islands Health Service (SESCS), Canary Islands, Spain.
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Costantini J, Esteves TA, Nicolino TI, Carbó L, Costa Paz M. ¿Es seguro el ácido tranexámico en la cirugía de reemplazo total de rodilla de pacientes con enfermedad coronaria? REVISTA DE LA ASOCIACIÓN ARGENTINA DE ORTOPEDIA Y TRAUMATOLOGÍA 2022. [DOI: 10.15417/issn.1852-7434.2022.87.5.1602] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Introducción: El ácido tranexámico reduce la pérdida sanguínea y los requerimientos de transfusiones luego de un reemplazo total de rodilla. Una de sus contraindicaciones relativas son los antecedentes de colocación de prótesis intravasculares coronarias, por un supuesto aumento de eventos tromboembólicos.
Materiales y Métodos: Análisis retrospectivo de pacientes sometidos a un reemplazo total de rodilla primario y de revisión que recibieron ácido tranexámico y tenían antecedente de colocación de prótesis intravascular coronaria. Se los comparó con un grupo sin estas prótesis. Se analizó la presencia de cualquier cambio clínico o electrocardiográfico de oclusión coronaria aguda, eventos tromboembólicos, el requerimiento de transfusión sanguínea y el nivel de hemoglobina pre y posoperatorio.
Resultados: 57 pacientes (59 cirugías, 56 reemplazos primarios y 3 revisiones) con colocación de prótesis intravascular coronaria, al menos, un año antes de la artroplastia. Un paciente tuvo síntomas de síndromecoronario agudo y cambios en el electrocardiograma. No hubo diferencias en la cantidad de eventos tromboembólicos. Solo un paciente del grupo de control recibió una transfusión de glóbulos rojos. El sangrado relativo fue menor en el grupo coronario independientemente del uso crónico de aspirina y clopidogrel antes de la cirugía (2,09 vs. 3,06 grupo de control; p = 0,01). En pacientes del alto riesgo, el ácido tranexámico no se asoció con más eventos tromboembólicos.
Conclusiones: El ácido tranexámico impresionó ser seguro y efectivo en nuestro grupo de pacientes con prótesis intravasculares coronarias; sin embargo, se necesita un estudio prospectivo con más casos para confirmar estos resultados
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Abstract
Osteoarthritis (OA) affects more than 240 million people worldwide. In 2016, the Osteoarthritis Research Society International submitted a report to the United States Food and Drug Administration highlighting OA as a 'serious' disease, and appealed for the urgent development and review of new therapies to address a significant unmet need. Despite this, international guidelines for the treatment of OA have been largely unchanged for over a decade. There is now an updated understanding that OA is more than simply a non-inflammatory 'wear-and-tear' process involving articular cartilage. Based on this, potential emerging therapies are being developed that target novel inflammatory, pain, and regeneration pathways. Drugs targeting the latter are being lauded as 'Disease-Modifying Osteoarthritis Drugs' - a concept which has so far proved elusive in OA research. While this review does not recommend a change in current practice, it should prompt readers to rethink the OA treatment paradigm. The global pandemic has added another layer of consideration when managing patients with OA. At a time when there is more strain on hospital systems, there is a need to expand our pharmacological armamentarium in order to manage OA without elective surgery and hospital admission.
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Affiliation(s)
- Julia Sewell
- Rheumatology Department, Monash Health, Melbourne, Australia
| | - Andrew Östör
- Melbourne Rheumatology Group, Cabrini Health, Melbourne, Australia
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Mulkerrin P, Durcan L, Chavrimootoo S, Kane D, Killeen G. The COVID 19 Pandemic-the Final Straw for Irish Rheumatology Services? Open Rheumatol J 2022. [DOI: 10.2174/18743129-v16-e2207130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Introduction:
The COVID-19 pandemic has caused disruption to the worldwide provision of acute and chronic care to patients. The effect has been particularly marked in rheumatology in Ireland, where the ability to provide acute and chronic care has been dramatically curtailed due to the combined effects of social distancing, staff redeployment and the repurposing of rheumatology units. Prior to the pandemic, there were significant challenges from an infrastructural and staffing level in Irish rheumatology.
Methods:
Using a questionnaire, the authors evaluated the effect of the first wave of the COVID 19 pandemic on rheumatology services.
Results:
Responses from 87% of Rheumatology specialist services in Ireland indicate that 83% of review appointments were remote, with 87% of new patient assessments in OPD were “in person”. Only 41% of usual outpatient activity could occur within existing infrastructure given guidelines re social distancing which would result a shortfall of 42000 patient appointments. Significant numbers of staff were reassigned from Rheumatology to services elsewhere.
Conclusion:
The COVID-19 pandemic has had a significant negative impact on access to struggling Irish Rheumatology services. Implementation of agreed recommendations for augmenting services must occur urgently.
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Usiskin I, Misra D. Racial Disparities in Elective Total Joint Arthroplasty for Osteoarthritis. ACR Open Rheumatol 2022; 4:306-311. [PMID: 34989176 PMCID: PMC8992460 DOI: 10.1002/acr2.11399] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Accepted: 08/27/2021] [Indexed: 12/27/2022] Open
Abstract
Total joint arthroplasty (TJA) is an effective elective surgical procedure for knee and hip osteoarthritis (OA), yet racial disparities in the use of and outcomes from TJA have been recognized. Racial minority individuals are less willing to undergo TJA, demonstrate worse surgical and functional outcomes, and are more likely to undergo surgery at a low‐procedure‐volume center. In this systematic review, we summarize evidence to date on racial disparities in TJA and discuss potential factors that may underlie this gap in care for patients with OA.
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Affiliation(s)
- Ilana Usiskin
- Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, Massachusetts
| | - Devyani Misra
- Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, Massachusetts
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Implementation of robotic-assisted total knee arthroplasty in the public health system: a comparative cost analysis. INTERNATIONAL ORTHOPAEDICS 2021; 46:481-488. [PMID: 34549322 DOI: 10.1007/s00264-021-05203-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Accepted: 08/25/2021] [Indexed: 12/27/2022]
Abstract
PURPOSE Robotic-assisted total knee arthroplasty (TKA) may improve the precision of bone preparation and component alignment when compared to the conventional surgical approach; however, the detailed cost analysis of robotic-assisted TKA is lacking. This study aims to compare in-hospital costs between robotic-assisted and computer-navigated TKA. METHODS Patients undergoing primary TKA at a public hospital in Sydney between October 2018 and June 2019 were included. Patient demographics, surgical outcomes and in-hospital cost variables including, staff, critical care, emergency department, diagnostic, prosthesis, operating room, ward and other related costs until the discharge to the community were collected. Differences across in-hospital costs between robotic-assisted and computer-navigated TKA were compared using independent Student's t-tests. RESULTS Of the 258 primary TKAs, 181 (70.2%) were computer-navigated and 77 (29.8%) robotic-assisted. Surgical time (p < 0.001) and operating time (p < 0.001) were both significantly shorter in computer-navigated TKA, while robotic-assisted TKA cases were more likely to be discharged directly home without extended in-patient rehabilitation (p = 0.014). When removing the capital costs of surgical equipment and maintenance, there was no difference in total in-hospital cost between computer-navigated ($19,512.3) and robotic-assisted TKA ($18,347.1; p = 0.179). When these capital costs were included, the mean in-hospital cost of robotic-assisted surgery was $21,507.6 compared to $19,659.7 for computer-navigated TKA (p = 0.034). CONCLUSIONS The total in-hospital cost, during the implementation period of robotic-assisted TKA, is comparable with computer-navigated TKA. Robotic-assisted TKA was significantly more expensive when the upfront cost of the robotic system and maintenance costs were included. Longer term cost benefit of robotic-assisted TKA should be investigated in future studies.
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A D, A T, T J, O R, LE D, M E. The role of pain and walking difficulties in shaping willingness to undergo joint surgery for osteoarthritis: Data from the Swedish BOA register. OSTEOARTHRITIS AND CARTILAGE OPEN 2021; 3:100157. [PMID: 36474994 PMCID: PMC9718157 DOI: 10.1016/j.ocarto.2021.100157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Accepted: 03/05/2021] [Indexed: 11/20/2022] Open
Abstract
Objectives To investigate whether the association between pain intensity and willingness to undergo surgery is explained by walking difficulties, in patients with knee or hip osteoarthritis (OA). Methods This is an observational study using data from the Better management of patients with Osteoarthritis (BOA) register, which collects data from a publicly financed self-management programme for people with OA in Sweden. We included all patients with knee or hip OA who attended the baseline visit between 2008 and 2016. We conducted separate mediation analyses within a counterfactual framework to estimate the mediation effect of walking difficulties (yes/no) on willingness to undergo surgery (yes/no) for each one-point increase in pain (0-10 on a numeric rating scale), adjusted for relevant confounders. Results We included 72,131 patients (69% women, mean age 66, mean pain 5.4, 81% had walking difficulties, 27% was willing to undergo surgery). A one-point increase in pain intensity was associated with 1.53 (95% CI: 1.51; 1.55) higher odds of being willing to undergo surgery. Walking difficulties mediated 10%-25% of the effect of one-point increase in pain when pain was <8/10, while at pain ≥8/10 this percentage decreased to 3%. Conclusions More than 80% of the BOA patients have mild to moderate pain (<8/10) and walking difficulties can mediate up to a quarter of the total effect of pain on the willingness to undergo surgery in these patients. Trials to evaluate the potential to lower surgery demand by reducing walking difficulties in people with these characteristics are needed.
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Affiliation(s)
- Dell’Isola A
- Clinical Epidemiology Unit, Orthopedics, Department of Clinical Sciences Lund, Lund University, Lund, Sweden
| | - Turkiewicz A
- Clinical Epidemiology Unit, Orthopedics, Department of Clinical Sciences Lund, Lund University, Lund, Sweden
| | - Jönsson T
- Department of Health Sciences, Division of Physiotherapy, Sport Sciences, Lund University, Sweden
| | - Rolfson O
- Department of Orthopedics, Institute of Clinical Science, Sahlgrenska Academy, University of Gothenburg, Sweden
| | - Dahlberg LE
- Orthopedics, Department of Clinical Sciences Lund, Lund University, Lund, Sweden
| | - Englund M
- Clinical Epidemiology Unit, Orthopedics, Department of Clinical Sciences Lund, Lund University, Lund, Sweden
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16
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Dell’Isola A, Jönsson T, Rolfson O, Cronström A, Englund M, Dahlberg L. Willingness to Undergo Joint Surgery Following a First-Line Intervention for Osteoarthritis: Data From the Better Management of People With Osteoarthritis Register. Arthritis Care Res (Hoboken) 2021; 73:818-827. [PMID: 33053273 PMCID: PMC8251860 DOI: 10.1002/acr.24486] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Accepted: 10/08/2020] [Indexed: 11/21/2022]
Abstract
OBJECTIVE To assess the proportion of participants reconsidering their willingness to undergo surgery after 3 and 12 months. Secondary aims were to analyze and compare the characteristics of individuals willing and unwilling to undergo joint surgery for osteoarthritis (OA) before a first-line intervention, and to study the association between pain intensity, walking difficulties, self-efficacy, and fear of movement with the willingness to undergo surgery. METHODS This was an observational study based on Swedish register data. We included 30,578 individuals with knee or hip OA who participated in a first-line intervention including education and exercise. RESULTS Individuals willing to undergo surgery at baseline showed a higher proportion of men (40% versus 27%) and more severe symptoms and disability. Respectively, 45% and 30% of the individuals with knee and hip OA who were willing to undergo surgery at baseline became unwilling after the intervention. At the end of the study period (12 months), 35% and 19% of those with knee and hip OA, respectively, who were willing to undergo surgery at baseline became unwilling. High pain intensity, walking difficulties, and fear of movement were associated with higher odds of being willing to undergo surgery at both follow-ups, while increased self-efficacy showed the opposite association. CONCLUSION A first-line intervention for OA is associated with reduced willingness to undergo surgery, with a greater proportion among patients with knee OA than hip OA. Due to its temporal variability, willingness to undergo surgery should be used with care to deem surgery eligibility.
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Affiliation(s)
| | | | - Ola Rolfson
- The Swedish Hip Arthroplasty RegisterCentre of Registers Västra Götaland, and Sahlgrenska AcademyUniversity of GothenburgGothenburgSweden
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Zak SG, Tang A, Sharan M, Waren D, Rozell JC, Schwarzkopf R. Tranexamic Acid Is Safe in Patients with a History of Coronary Artery Disease Undergoing Total Joint Arthroplasty. J Bone Joint Surg Am 2021; 103:900-904. [PMID: 33983147 DOI: 10.2106/jbjs.20.01226] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
BACKGROUND Tranexamic acid (TXA) is increasingly used to minimize blood loss during total joint arthroplasty (TJA). Although TXA has been shown to be highly effective in reducing operative blood loss, many surgeons believe that it places patients with coronary artery disease (CAD) or a history of coronary stents at an increased risk for myocardial infarction. The purpose of this study was to determine if TXA is safe to use in patients with a history of CAD or coronary stents. METHODS We performed a retrospective analysis at a single, tertiary academic medical center identifying consecutive total hip and knee arthroplasty cases over an 8-year period. From this cohort who received TXA intraoperatively, we identified patients with a history of CAD or coronary stents and determined the total myocardial infarction and venous thromboembolism (VTE) rates within a 90-day postoperative period. Chi-square analyses were used to identify differences in VTE rates between cohorts. A post hoc power analysis was also performed to determine whether our results were powered to detect a difference in VTE rates. RESULTS In the 26,808 identified at-risk patients, there were no postoperative myocardial infarctions. No significant differences were observed for VTE rates compared with the control cohort using either topical or intravenous TXA, with regard to CAD (0.29% compared with 0.76%; p = 0.09) or coronary stents (0% compared with 0.76%; p = 0.14). Moreover, there was no significant difference observed in VTE rates when administration was subcategorized into intravenous and topical methods with regard to CAD (0.13% compared with 0.72%; p = 0.12) or coronary stents (0% compared with 0%; p = 1.0). CONCLUSIONS In our series, topical and intravenous TXA were equally safe when used in patients with a history of CAD and coronary stents in comparison with the control cohort. With equal efficacy and risk of adverse events, we recommend intravenous TXA, which may enable easier institutional implementation. LEVEL OF EVIDENCE Therapeutic Level III. See Instructions for Authors for a complete description of levels of evidence.
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Affiliation(s)
- Stephen G Zak
- Department of Orthopedic Surgery, NYU Langone Health, New York, NY
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18
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Zhang L, Zhang L, You H, Sun S, Liao Z, Zhao G, Chen J. Inhibition of osteoclastogenesis by histone deacetylase inhibitor Quisinostat protects mice against titanium particle-induced bone loss. Eur J Pharmacol 2021; 904:174176. [PMID: 34004213 DOI: 10.1016/j.ejphar.2021.174176] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Revised: 05/06/2021] [Accepted: 05/12/2021] [Indexed: 10/21/2022]
Abstract
Periprosthetic osteolysis (PPO) and subsequent aseptic loosening are major long-term complications after total joint arthroplasty and have become the first causes for further revision surgery. Since PPO is primarily caused by excessive bone resorption stimulated by released wear particles, osteoclast-targeted therapy is considered to be of great potential for PPO prevention and treatment. Accumulating evidences indicated that inhibition of histone deacetylases (HDACs) may represent a novel approach to suppress osteoclast differentiation. However, different inhibitors of HDACs were shown to exhibit distinct safety profiles and efficacy in inhibiting osteoclastogenesis. Quisinostat (Qst) is a hydroxamate-based histone deacetylase inhibitor, and exerts potent anti-cancer activity. However, its effect on osteoclastogenesis and its therapeutic potential in preventing PPO are still unclear. In this study, we found that Qst suppressed RANKL-induced production of TRAP-positive mature osteoclasts, expression of osteoclast-specific genes, formation of F-actin rings, and bone resorption activity at a nanomolar concentration as low as 2 nM in vitro. Furthermore, we found that as low as 30 μg/kg of Qst was sufficient to exert preventive effect on titanium particle-induced osteolysis in the murine calvarial osteolysis model. Mechanistically, we found that Qst suppressed osteoclastogenesis by interfering with NF-κB and c-Fos/NFATc1 pathways. Thus, our study revealed that Qst may serve as a potential therapeutic agent for prevention and treatment of PPO and other osteoclast-mediated diseases.
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Affiliation(s)
- Liwei Zhang
- Orthopedic Institute, Medical College, Soochow University, Suzhou, Jiangsu, 215007, China; Department of Orthopaedics, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, 215006, China
| | - Lei Zhang
- Orthopedic Institute, Medical College, Soochow University, Suzhou, Jiangsu, 215007, China; Department of Orthopaedics, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, 215006, China
| | - Hongji You
- Orthopedic Institute, Medical College, Soochow University, Suzhou, Jiangsu, 215007, China; Department of Orthopaedics, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, 215006, China
| | - Shengxuan Sun
- Department of Orthopedics, The Second Affiliated Hospital of Soochow University, Suzhou, Jiangsu, 215004, China
| | - Zirui Liao
- Orthopedic Institute, Medical College, Soochow University, Suzhou, Jiangsu, 215007, China; Department of Orthopaedics, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, 215006, China
| | - Gang Zhao
- Department of Hand Surgery, Wuxi No.9 People's Hospital Affiliated to Soochow University, Wuxi, Jiangsu, 214062, China.
| | - Jianquan Chen
- Orthopedic Institute, Medical College, Soochow University, Suzhou, Jiangsu, 215007, China; Department of Orthopaedics, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, 215006, China.
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Midgley J. Osteoarthritis and obesity; conservative management, multi-morbidity, surgery and the implications of restricted access to knee or hip replacement: a literature review. Int J Orthop Trauma Nurs 2021; 40:100840. [DOI: 10.1016/j.ijotn.2020.100840] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Revised: 11/17/2020] [Accepted: 12/02/2020] [Indexed: 01/03/2023]
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Čečrle M, Didič N, Halačová M, Černý D. The role of vitamin D in primary and secondary prevention in orthopaedic patients. CESKA A SLOVENSKA FARMACIE : CASOPIS CESKE FARMACEUTICKE SPOLECNOSTI A SLOVENSKE FARMACEUTICKE SPOLECNOSTI 2021; 70:127-135. [PMID: 35045713 DOI: 10.5817/csf2021-4-127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
The article discusses the effect of vitamin D on primary and secondary prevention of fractures and its effect on conditions after selected orthopaedic procedures. Fractures can be divided into traumatic, fatigue and pathological according to the cause. One of the complications of fracture is the formation of a nonunion. In addition to dealing with fractures, a total joint replacement is another common procedure in orthopaedic surgery. Because insufficient muscle strength can increase the risk of falls and thus result in a fracture, these topics are also mentioned in this article. Due to the impact of vitamin D deficiency on various musculoskeletal disorders, orthopaedic surgeons should pay more attention to the patients vitamin D status and be familiar with different strategies for preventing hypovitaminosis D, although clear evidence-based medical recommendations are still insufficient.
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Husted RS, Bandholm T, Rathleff MS, Troelsen A, Kirk J. Perceived facilitators and barriers among physical therapists and orthopedic surgeons to pre-operative home-based exercise with one exercise-only in patients eligible for knee replacement: A qualitative interview study nested in the QUADX-1 trial. PLoS One 2020; 15:e0241175. [PMID: 33095777 PMCID: PMC7584251 DOI: 10.1371/journal.pone.0241175] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2020] [Accepted: 10/07/2020] [Indexed: 01/01/2023] Open
Abstract
AIM Clinical guidelines recommend non-surgical treatment before surgery is considered in patients eligible for knee replacement. Surgical treatment is provided by orthopedic surgeons and exercise therapy is provided by physical therapists. The aim of this study was to identify perceived facilitators and barriers-among orthopedic surgeons and physical therapists-towards coordinated non-surgical and surgical treatment of patients eligible for knee replacement using pre-operative home-based exercise therapy with one exercise. METHODS This qualitative study is embedded within the QUADX-1 randomized trial that investigates a model of coordinated non-surgical and surgical treatment for patients eligible for knee replacement. Physical therapists and orthopedic surgeons working with patients with knee osteoarthritis in their daily clinical work were interviewed (one focus group and four single interviews) to explore their perceived facilitators and barriers related to pre-operative home-based exercise therapy with one exercise-only in patients eligible for knee replacement. Interviews were analyzed using thematic analysis. RESULTS From the thematic analysis three main themes emerged: 1) Physical therapists' dilemma with one home-based exercise, 2) Orthopedic surgeons' dilemma with exercise, and 3) Coordinated non-surgical and surgical care. CONCLUSION We found that the pre-operative exercise intervention created ambivalence in the professional role of both the physical therapists and orthopedic surgeons. The physical therapists were skeptical towards over-simplified exercise therapy. The orthopedic surgeons were skeptical towards the potential lack of (long-term) effect of exercise therapy in patients eligible for knee replacement. The consequence of these barriers and ambivalence in the professional role is important to consider when planning implementation of the model of coordinated non-surgical and surgical treatment. TRIAL REGISTRATION ClinicalTrials.gov, ID: NCT02931058.
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Affiliation(s)
- Rasmus Skov Husted
- Department of Clinical Research, Copenhagen University Hospital Amager-Hvidovre, Hvidovre, Denmark
- Department of Physical and Occupational Therapy, Physical Medicine & Rehabilitation Research-Copenhagen (PMR-C), Copenhagen University Hospital Amager-Hvidovre, Hvidovre, Denmark
- Department of Orthopedic Surgery, Clinical Orthopedic Research Hvidovre (CORH), Copenhagen University Hospital Amager-Hvidovre, Hvidovre, Denmark
| | - Thomas Bandholm
- Department of Clinical Research, Copenhagen University Hospital Amager-Hvidovre, Hvidovre, Denmark
- Department of Physical and Occupational Therapy, Physical Medicine & Rehabilitation Research-Copenhagen (PMR-C), Copenhagen University Hospital Amager-Hvidovre, Hvidovre, Denmark
| | - Michael Skovdal Rathleff
- Research Unit for General Practice in Aalborg, Department of Clinical Medicine, Aalborg University, Aalborg, Denmark
- Department of Occupational Therapy and Physiotherapy, Aalborg University Hospital, Aalborg, Denmark
- Department of Health Science and Technology, Aalborg University, Denmark
| | - Anders Troelsen
- Department of Orthopedic Surgery, Clinical Orthopedic Research Hvidovre (CORH), Copenhagen University Hospital Amager-Hvidovre, Hvidovre, Denmark
| | - Jeanette Kirk
- Department of Clinical Research, Copenhagen University Hospital Amager-Hvidovre, Hvidovre, Denmark
- Department of Physical and Occupational Therapy, Physical Medicine & Rehabilitation Research-Copenhagen (PMR-C), Copenhagen University Hospital Amager-Hvidovre, Hvidovre, Denmark
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22
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Vitali M, Ometti M, Drossinos A, Pironti P, Santoleri L, Salini V. Autologous conditioned serum: clinical and functional results using a novel disease modifying agent for the management of knee osteoarthritis. J Drug Assess 2020; 9:43-51. [PMID: 32284907 PMCID: PMC7144201 DOI: 10.1080/21556660.2020.1734009] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2019] [Accepted: 01/30/2020] [Indexed: 02/06/2023] Open
Abstract
Objective: The purpose of this study was to investigate the potential ability of autologous conditioned serum (ACS) to decrease pain and improve joint functionality in patients affected by knee osteoarthritis (OA). Methods: Fifteen patients with clinical and radiological signs of OA of the knee were recruited for this study. Each patient received 4 injections of ACS (Orthokine; orthogen, Dusseldorf, Germany) at the site of OA once per week for 4 weeks. Clinical and functional evaluation was performed using the VAS scale for pain, WOMAC scale and KSS functional and clinical scores before the first injection, at one week, at two weeks, at three weeks, at one month and at six months. Statistical analysis was done with the Wilcoxon Signed-Rank Test. Results: Our results show an improvement of all the evaluation scales at 6 months follow-up. Particularly, VAS scales among all patients decreased by 35.8% (p = .00148), KSS functional scores improved by 38.2% (p = .00148), KSS clinical scores improved by 28.9% (p = .00236) and WOMAC scores were reduced by 19.8% (p = .00188). Few adverse effects were observed in our sample. The most common complaint was pain and swelling in the subsequent days after performing the intra-articular injection. Only one patient reported rigidity following the injection of the ACS. Conclusion: Our results, in conjunction with preexisting studies in the medical literature regarding ACS, demonstrate the viability of this therapy for the treatment of knee OA, showing positive influence on pain and joint function without significant adverse effects.
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Affiliation(s)
- Matteo Vitali
- Department of Orthopedics and Traumatology, San Raffaele Hospital Scientific Institute, Milan, Italy
| | - Marco Ometti
- Department of Orthopedics and Traumatology, San Raffaele Hospital Scientific Institute, Milan, Italy
| | - Andreas Drossinos
- Department of Orthopedics and Traumatology, San Raffaele Hospital Scientific Institute, Milan, Italy
| | - Pierluigi Pironti
- Department of Orthopedics and Traumatology, San Raffaele Hospital Scientific Institute, Milan, Italy
| | - Luca Santoleri
- Immunohematology and Transfusion Medicine, IRRCS Ospedale San Raffaele, Milan, Italy
| | - Vincenzo Salini
- Department of Orthopedics and Traumatology, San Raffaele Hospital Scientific Institute, Milan, Italy
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23
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Analgesic Impact of Single-Shot Versus Continuous Femoral Nerve Block After Total Knee Arthroplasty: A Systematic Review and Meta-Analysis. Adv Ther 2020; 37:671-685. [PMID: 31925648 DOI: 10.1007/s12325-019-01194-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2019] [Indexed: 10/25/2022]
Abstract
INTRODUCTION Efficient pain management after total knee arthroplasty will accelerate functional recovery and reduce the length of hospital stay. The femoral nerve block is increasingly used in clinical practice owing to its favorable analgesic efficacy. However, the effect of continuous femoral nerve block compared to single-shot femoral nerve block remains controversial. METHODS Three databases (Pubmed, Embase and Cochrane Library) were searched for randomized controlled trials up to April 2019. Seven studies with 525 patients were included in this analysis. RESULTS The pooled estimates showed that the continuous femoral nerve block could relieve the pain at rest [standardized mean differences with 95% confidence intervals 1.12 (0.63-1.60), I2 = 57%, p < 0.00001] and physical therapy [standardized mean differences with 95% confidence intervals 1.05 (0.47-1.63), I2 = 71%, p = 0.0004] on postoperative day 1 and reduce total morphine consumption on postoperative day 1 [mean differences with 95% confidence intervals 16.15 (13.75-18.54), I2 = 46%, p < 0.00001] and 2 [mean differences with 95% confidence intervals 7.02 (4.82-9.22), I2 = 35%, p < 0.00001]. There is no significant difference in pain scores at rest and physical therapy on postoperative day 2 and 3, in Western Ontario and McMaster University Arthritis Index scores (p = 0.12), the length of hospital stay (p = 0.94) and the incidence of nausea and vomiting (p = 0.09). CONCLUSION We conclude that the continuous femoral nerve block is more effective than single-shot femoral nerve block after total knee arthroplasty, which provides objective evidence of pain management for anesthetists.
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24
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Zeng C, Lane NE, Englund M, Xie D, Chen H, Zhang Y, Wang H, Lei G. In-hospital mortality after hip arthroplasty in China. Bone Joint J 2019; 101-B:1209-1217. [PMID: 31564156 DOI: 10.1302/0301-620x.101b10.bjj-2018-1608.r1] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Aims There is an increasing demand for hip arthroplasty in China. We aimed to describe trends in in-hospital mortality after this procedure in China and to examine the potential risk factors. Patients and Methods We included 210 450 patients undergoing primary hip arthroplasty registered in the Hospital Quality Monitoring System in China between 2013 and 2016. In-hospital mortality after hip arthroplasty and its relation to potential risk factors were assessed using multivariable Poisson regression. Results During the study period, 626 inpatient deaths occurred within 30 days after hip arthroplasty. Mortality decreased from 2.9% in 2013 to 2.6% in 2016 (p for trend = 0.02). Compared with their counterparts, old age, male sex, and divorced or widowed patients had a higher rate of mortality (all p < 0.05). Risk ratio (RR) for mortality after arthroplasty for fracture was two-fold higher (RR 2.0, 95% confidence interval (CI) 1.5 to 2.6) than that for chronic disease. RRs for mortality were 3.3 (95% CI 2.7 to 3.9) and 8.2 (95% CI 6.5 to 10.4) for patients with Charlson Comorbidity Index (CCI) of 1 to 2 and CCI ≥ 3, respectively, compared with patients with CCI of 0. The rate of mortality varied according to geographical region, the lowest being in the East region (1.8%), followed by Beijing (2.1%), the North (2.9%), South-West (3.6%), South-Central (3.8%), North-East (4.1%), and North-West (5.2%) regions. Conclusion While in-hospital mortality after hip arthroplasty in China appears low and declined during the study period, discrepancies in mortality after this procedure exist according to sociodemographic factors. Healthcare resources should be allocated more to underdeveloped regions to further reduce mortality. Cite this article: Bone Joint J 2019;101-B:1209–1217
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Affiliation(s)
- Chao Zeng
- Department of Orthopaedics, Xiangya Hospital, Central South University, Changsha, China
- Division of Rheumatology, Allergy, and Immunology, Department of Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
- Hunan Key Laboratory of Joint Degeneration and Injury, Changsha, China
| | - Nancy E. Lane
- Division of Rheumatology, Allergy and Clinical Immunology, Department of Medicine, University of California, Davis, California, USA
| | - Martin Englund
- Department of Clinical Sciences Lund, Orthopedics, Clinical Epidemiology Unit, Faculty of Medicine, Lund University, Lund, Sweden
| | - Dongxing Xie
- Department of Orthopaedics, Xiangya Hospital, Central South University, Changsha, China
| | - Hu Chen
- Department of Orthopaedics, Xiangya Hospital, Central South University, Changsha, China
| | - Yuqing Zhang
- Division of Rheumatology, Allergy, and Immunology, Department of Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Haibo Wang
- Clinical Trial Unit, First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
- China Standard Medical Information Research Center, Shenzhen, China
| | - Guanghua Lei
- Department of Orthopaedics, Xiangya Hospital, Central South University, Changsha, China
- Hunan Key Laboratory of Joint Degeneration and Injury, Changsha, China
- National Clinical Research Center of Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
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25
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Sul JU, Kim MK, Leem J, Jo HG, Yoon SH, Kim J, Lee EJ, Yoo JE, Park SJ, Kim YI, Kim E, Jung IC, Jeon JH, Park YC. Efficacy and safety of gyejigachulbutang (Gui-Zhi-Jia-Shu-Fu-Tang, Keishikajutsubuto, TJ-18) for knee pain in patients with degenerative knee osteoarthritis: a randomized, placebo-controlled, patient and assessor blinded clinical trial. Trials 2019; 20:140. [PMID: 30782208 PMCID: PMC6381693 DOI: 10.1186/s13063-019-3234-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2018] [Accepted: 01/29/2019] [Indexed: 01/04/2023] Open
Abstract
Background Degenerative knee osteoarthritis is a leading cause of disability in the elderly. If patients do not respond to pharmacological or nonpharmacological intervention, total knee replacement surgery is recommended. However, owing to the contraindications and adverse effects of surgery, the need for a new treatment strategy is emerging. Traditional herbal medicine is a widely used intervention in east Asia to treat knee osteoarthritis. Gyejigachulbutang is one of the frequently prescribed herbal formulae. The aim of our study is to evaluate the efficacy and safety of gyejigachulbutang for knee osteoarthritis. Methods This study is a randomized, placebo-controlled, patient and assessor blinded, superiority clinical trial. A total of 80 patients with knee osteoarthritis will be enrolled. The participants will be randomly assigned to the gyejigachulbutang or placebo group in a 1:1 ratio in two Korean medical hospitals. Every participant will take gyejigachulbutang or placebo at a dose of 2.5 g three times a day for 4 weeks. Additional follow-up will be conducted 4 weeks after treatment completion. Any concomitant treatment to relive knee pain will not be allowed except for rescue medicine (acetaminophen). The primary outcome will be a comparison of the change in the visual analogue scale score for knee pain from baseline to visit 3 (week 4) for both the treatment and placebo groups. Secondary outcomes include clinical relevance, minimal clinically important difference, disability, quality of life, and safety. Discussion This protocol presents a research methodology for clinical trials of gyejigachulbutang for knee osteoarthritis. Various secondary outcomes make this trial more informative. Our trial will provide fundamental evidence for knee osteoarthritis management via herbal medicine treatment. Trial registration Clinical Research Information Service (CRIS), KCT0003024. Registered on 25 July 2018. Electronic supplementary material The online version of this article (10.1186/s13063-019-3234-6) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Jae-Uk Sul
- Chung-Yeon Central Institute, 64, Sangmujungang-ro, Seo-gu, Gwangju, 61949, South Korea.,Chung-Yeon Korean Medicine Hospital, 64, Sangmujungang-ro, Seo-gu, Gwangju, 61949, South Korea
| | - Myung Kwan Kim
- Department of Acupuncture & Moxibustion Medicine, College of Korean Medicine, Daejeon University, 62, Daehak-ro, Dong-gu, Daejeon, 34520, South Korea
| | - Jungtae Leem
- Chung-Yeon Central Institute, 64, Sangmujungang-ro, Seo-gu, Gwangju, 61949, South Korea.,Dongshin Korean Medicine Hospital, 351, Omok-ro, Yangcheon-gu, Seoul, 07999, South Korea
| | - Hee-Geun Jo
- Chung-Yeon Central Institute, 64, Sangmujungang-ro, Seo-gu, Gwangju, 61949, South Korea.,Chung-Yeon Korean Medicine Hospital, 64, Sangmujungang-ro, Seo-gu, Gwangju, 61949, South Korea
| | - Sang-Hoon Yoon
- Chung-Yeon Central Institute, 64, Sangmujungang-ro, Seo-gu, Gwangju, 61949, South Korea.,Chung-Yeon Korean Medicine Hospital, 64, Sangmujungang-ro, Seo-gu, Gwangju, 61949, South Korea
| | - Jeeyong Kim
- Chung-Yeon Central Institute, 64, Sangmujungang-ro, Seo-gu, Gwangju, 61949, South Korea.,Chung-Yeon Korean Medicine Hospital, 64, Sangmujungang-ro, Seo-gu, Gwangju, 61949, South Korea
| | - Eun-Jung Lee
- Department of Korean Rehabilitation Medicine, College of Korean Medicine, Daejeon University, 62, Daehak-ro, Dong-gu, Daejeon, 34520, South Korea
| | - Jeong-Eun Yoo
- Department of Korean Medicine Obstetrics & Gynecology, College of Korean Medicine, Daejeon University, 62, Daehak-ro, Dong-gu, Daejeon, 34520, South Korea
| | - So Jung Park
- East West Cancer Center, Dunsan Korean Medicine Hospital of Daejeon University, 75, 176 Bun-gil, Daedeok-daero, Seo-gu, Daejeon City, 35235, South Korea
| | - Young Il Kim
- Department of Acupuncture & Moxibustion Medicine, College of Korean Medicine, Daejeon University, 62, Daehak-ro, Dong-gu, Daejeon, 34520, South Korea
| | - Eunseok Kim
- Department of Acupuncture & Moxibustion Medicine, College of Korean Medicine, Daejeon University, 62, Daehak-ro, Dong-gu, Daejeon, 34520, South Korea
| | - In Chul Jung
- Department of Neuropsychiatry, Dunsan Korean Medicine Hospital of Daejeon University, 75, Daedeok-daero 176 beon-gil, Seo-gu, Daejeon, 35235, South Korea
| | - Ju-Hyun Jeon
- Department of Acupuncture & Moxibustion Medicine, College of Korean Medicine, Daejeon University, 62, Daehak-ro, Dong-gu, Daejeon, 34520, South Korea.
| | - Yang-Chun Park
- Department of Internal Medicine, Dunsan Korean Medicine Hospital of Daejeon University, 75, Daedeok-daero 176 beon-gil, Seo-gu, Daejeon, 35235, South Korea.
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26
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Skou ST, Roos EM, Laursen MB, Rathleff MS, Arendt-Nielsen L, Rasmussen S, Simonsen O. Total knee replacement and non-surgical treatment of knee osteoarthritis: 2-year outcome from two parallel randomized controlled trials. Osteoarthritis Cartilage 2018; 26:1170-1180. [PMID: 29723634 DOI: 10.1016/j.joca.2018.04.014] [Citation(s) in RCA: 86] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/18/2017] [Revised: 03/25/2018] [Accepted: 04/20/2018] [Indexed: 02/02/2023]
Abstract
OBJECTIVES To compare 2-year outcomes of total knee replacement (TKR) followed by non-surgical treatment to that of non-surgical treatment alone and outcomes of the same non-surgical treatment to that of written advice. DESIGN In two randomized trials, 200 (mean age 66) adults with moderate to severe knee osteoarthritis (OA), 100 eligible for TKR and 100 not eligible for TKR, were randomized to TKR followed by non-surgical treatment, non-surgical treatment alone, or written advice. Non-surgical treatment consisted of 12 weeks of supervised exercise, education, dietary advice, use of insoles, and pain medication. The primary outcome was the mean score of the Knee Injury and Osteoarthritis Outcome Score (KOOS) subscales, covering pain, symptoms, activities of daily living (ADL), and quality of life (QOL). RESULTS Patients randomized to TKR had greater improvements than patients randomized to non-surgical treatment alone (difference of 18.3 points (95% CI; 11.3 to 25.3)), who in turn improved more than patients randomized to written advice (difference of 7.0 points (95% CI; 0.4 to 13.5)). Among patients eligible for TKR, 16 (32%) from the non-surgical group underwent TKR during 2 years and among those initially ineligible, seven patients (14%) from the non-surgical group and ten (20%) from the written advice group underwent TKR. CONCLUSIONS TKR followed by non-surgical treatment is more effective on pain and function than non-surgical treatment alone, which in turn is more effective than written advice. Two out of three patients with moderate to severe knee OA eligible for TKR delayed surgery for at least 2 years following non-surgical treatment. TRIAL REGISTRATION ClinicalTrials.gov numbers NCT01410409 and NCT01535001.
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Affiliation(s)
- S T Skou
- Orthopedic Surgery Research Unit, Aalborg University Hospital, 9000 Aalborg, Denmark; Research Unit for Musculoskeletal Function and Physiotherapy, Department of Sports Science and Clinical Biomechanics, University of Southern Denmark, 5230 Odense, Denmark; Department of Physiotherapy and Occupational Therapy, Næstved-Slagelse-Ringsted Hospitals, Region Zealand, 4200 Slagelse, Denmark; Center for Sensory-Motor Interaction (SMI), Department of Health Science and Technology, Faculty of Medicine, Aalborg University, 9220 Aalborg, Denmark.
| | - E M Roos
- Research Unit for Musculoskeletal Function and Physiotherapy, Department of Sports Science and Clinical Biomechanics, University of Southern Denmark, 5230 Odense, Denmark
| | - M B Laursen
- Orthopedic Surgery Research Unit, Aalborg University Hospital, 9000 Aalborg, Denmark; Center for Sensory-Motor Interaction (SMI), Department of Health Science and Technology, Faculty of Medicine, Aalborg University, 9220 Aalborg, Denmark; Department of Clinical Medicine, Aalborg University, 9220 Aalborg, Denmark
| | - M S Rathleff
- Center for Sensory-Motor Interaction (SMI), Department of Health Science and Technology, Faculty of Medicine, Aalborg University, 9220 Aalborg, Denmark; Research Unit for General Practice in Aalborg, Department of Clinical Medicine, Aalborg University, 9220 Aalborg, Denmark
| | - L Arendt-Nielsen
- Center for Sensory-Motor Interaction (SMI), Department of Health Science and Technology, Faculty of Medicine, Aalborg University, 9220 Aalborg, Denmark
| | - S Rasmussen
- Orthopedic Surgery Research Unit, Aalborg University Hospital, 9000 Aalborg, Denmark; Center for Sensory-Motor Interaction (SMI), Department of Health Science and Technology, Faculty of Medicine, Aalborg University, 9220 Aalborg, Denmark; Department of Clinical Medicine, Aalborg University, 9220 Aalborg, Denmark
| | - O Simonsen
- Orthopedic Surgery Research Unit, Aalborg University Hospital, 9000 Aalborg, Denmark; Center for Sensory-Motor Interaction (SMI), Department of Health Science and Technology, Faculty of Medicine, Aalborg University, 9220 Aalborg, Denmark; Department of Clinical Medicine, Aalborg University, 9220 Aalborg, Denmark
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27
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Traumer L, Sørensen EE, Kusk KH, Skou ST. Investigating the motives of patients with knee OA undergoing a TKR: A qualitative interview study. Musculoskeletal Care 2018; 16:380-387. [PMID: 29656439 DOI: 10.1002/msc.1244] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2018] [Revised: 03/09/2018] [Accepted: 03/11/2018] [Indexed: 11/09/2022]
Affiliation(s)
- Line Traumer
- Clinical Nursing Research Unit, Aalborg University Hospital, Aalborg, Denmark
| | - Erik Elgaard Sørensen
- Clinical Nursing Research Unit, Aalborg University Hospital, Aalborg, Denmark.,Department of Clinical Medicine, Aalborg University, Aalborg, Denmark
| | | | - Søren Thorgaard Skou
- Clinical Nursing Research Unit, Aalborg University Hospital, Aalborg, Denmark.,Research Unit for Musculoskeletal Function and Physiotherapy, Department of Sports Science and Clinical Biomechanics, University of Southern Denmark, Odense, Denmark.,Department of Physiotherapy and Occupational Therapy, Naestved-Slagelse-Ringsted Hospitals, Slagelse, Denmark
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28
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Zeineddine HA, Frush TJ, Saleh ZM, El-Othmani MM, Saleh KJ. Applications of Tissue Engineering in Joint Arthroplasty: Current Concepts Update. Orthop Clin North Am 2017; 48:275-288. [PMID: 28577777 DOI: 10.1016/j.ocl.2017.03.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Research in tissue engineering has undoubtedly achieved significant milestones in recent years. Although it is being applied in several disciplines, tissue engineering's application is particularly advanced in orthopedic surgery and in degenerative joint diseases. The literature is full of remarkable findings and trials using tissue engineering in articular cartilage disease. With the vast and expanding knowledge, and with the variety of techniques available at hand, the authors aimed to review the current concepts and advances in the use of cell sources in articular cartilage tissue engineering.
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Affiliation(s)
- Hussein A Zeineddine
- Department of Surgery, University of Chicago Medical Center, 5841 South Maryland Avenue, Chicago, IL 60637, USA
| | - Todd J Frush
- Department of Orthopaedics and Sports Medicine, Detroit Medical Center, University Health Center (UHC) 9B, 4201 Saint Antoine Street, Detroit, MI 48201-2153, USA
| | - Zeina M Saleh
- Department of Surgery, American University of Beirut Medical Center, Bliss Street, Riad El-Solh, Beirut 11072020, Lebanon
| | - Mouhanad M El-Othmani
- Department of Orthopaedics and Sports Medicine, Musculoskeletal Institute of Excellence, Detroit Medical Center, University Health Center (UHC) 9B, 4201 Saint Antoine Street, Detroit, MI 48201-2153, USA
| | - Khaled J Saleh
- Department of Orthopaedics and Sports Medicine, Detroit Medical Center, University Health Center (UHC) 9B, 4201 Saint Antoine Street, Detroit, MI 48201-2153, USA.
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29
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Gademan MGJ, Hofstede SN, Vliet Vlieland TPM, Nelissen RGHH, Marang-van de Mheen PJ. Indication criteria for total hip or knee arthroplasty in osteoarthritis: a state-of-the-science overview. BMC Musculoskelet Disord 2016; 17:463. [PMID: 27829422 PMCID: PMC5103467 DOI: 10.1186/s12891-016-1325-z] [Citation(s) in RCA: 155] [Impact Index Per Article: 19.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/15/2016] [Accepted: 11/03/2016] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND This systematic review gives an overview of guidelines and original publications as well as the evidence on which the currently proposed indication criteria are based. Until now such a state-of-the-science overview was lacking. METHODS Websites of orthopaedic and arthritis organizations (English/Dutch language) were independently searched by two authors for THA/TKA guidelines for OA. Furthermore, a systematic search strategy in several databases through August 2014 was performed. Quality of the guidelines was assessed with the AGREE II instrument, which consists of 6 domains (maximum summed score of 6 indicating high quality). Also, the level of evidence of all included studies was assessed. RESULTS We found 6 guidelines and 18 papers, out of 3065 references. The quality of the guidelines summed across 6 domains ranged from 0.46 to 4.78. In total, 12 THA, 10 TKA and 2 THA/TKA indication sets were found. Four studies stated that no evidence-based indication criteria are available. Indication criteria concerning THA/TKA consisted of the following domains: pain (in respectively 11 and 10 sets), function (12 and 7 sets), radiological changes (10 and 9 sets), failed conservative therapy (8 and 4 sets) and other indications (6 and 7 sets). Specific cut-off values or ranges were often not stated and the level of evidence was low. CONCLUSION The indication criteria for THA/TKA are based on limited evidence. Empirical research is needed, especially regarding domain specific cut-off values or ranges at which the best postoperative outcomes are achieved for patients, taking into account the limited lifespan of a prosthesis.
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MESH Headings
- Arthroplasty, Replacement, Hip/instrumentation
- Arthroplasty, Replacement, Hip/standards
- Arthroplasty, Replacement, Knee/instrumentation
- Arthroplasty, Replacement, Knee/standards
- Female
- Hip Prosthesis
- Humans
- Knee Prosthesis
- Male
- Middle Aged
- Osteoarthritis, Hip/diagnostic imaging
- Osteoarthritis, Hip/surgery
- Osteoarthritis, Knee/diagnostic imaging
- Osteoarthritis, Knee/surgery
- Pain Management/methods
- Pain Measurement
- Patient Selection
- Practice Guidelines as Topic
- Radiography
- Reoperation
- Treatment Outcome
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Affiliation(s)
- Maaike G. J. Gademan
- Department of Orthopaedics, Leiden University Medical Center, Albinusdreef 2, Leiden, 2333 ZA The Netherlands
- Department of Clinical Epidemiology, Leiden University Medical Center, Albinusdreef 2, Leiden, 2333 ZA The Netherlands
- Department of Orthopaedics, P.O. Box 9600, 2300 RC Leiden, The Netherlands
- Department of Clinical Epidemiology, P.O. Box 9600, 2300 RC Leiden, The Netherlands
| | - Stefanie N. Hofstede
- Department of Orthopaedics, Leiden University Medical Center, Albinusdreef 2, Leiden, 2333 ZA The Netherlands
| | - Thea P. M. Vliet Vlieland
- Department of Orthopaedics, Leiden University Medical Center, Albinusdreef 2, Leiden, 2333 ZA The Netherlands
- Rijnlands Rehabilitation Center, Leiden, The Netherlands
- Sophia Rehabilitation, The Hague, The Netherlands
| | - Rob G. H. H. Nelissen
- Department of Orthopaedics, Leiden University Medical Center, Albinusdreef 2, Leiden, 2333 ZA The Netherlands
| | - Perla J. Marang-van de Mheen
- Department of Medical Decision Making, Leiden University Medical Center, Albinusdreef 2, Leiden, 2333 ZA The Netherlands
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30
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Zeineddine HA, El-Othmani MM, Sayeed Z, Chambers MC, Saleh KJ. Patient Centeredness in Total Joint Replacement: Beyond the Slogan. Orthop Clin North Am 2016; 47:697-706. [PMID: 27637656 DOI: 10.1016/j.ocl.2016.05.012] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Patient-centered care (PCC) is gaining considerable momentum among health care professionals and policy-making authorities. The need for PCC stems from the innumerable benefits of adopting such a system. The practice of PCC in orthopedic surgery in general, and in total joint replacement in particular, is still in its youth. However, present literature already establishes the need for applying PCC in total joint replacement. Extensive research and effort should be invested to better grasp and define the dimensions of PCC as they relate to total joint replacement.
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Affiliation(s)
- Hussein A Zeineddine
- Department of Surgery, University of Chicago, 5812 South Ellis Avenue, Chicago, IL 60637, USA
| | - Mouhanad M El-Othmani
- Division of Orthopaedics and Rehabilitation, Southern Illinois University School of Medicine, 701 North First Street, Springfield, IL 62781, USA
| | - Zain Sayeed
- Division of Orthopaedics and Rehabilitation, Southern Illinois University School of Medicine, 701 North First Street, Springfield, IL 62781, USA
| | - Monique C Chambers
- Division of Orthopaedics and Rehabilitation, Southern Illinois University School of Medicine, 701 North First Street, Springfield, IL 62781, USA
| | - Khaled J Saleh
- Department of Orthopaedic and Sports Medicine, Detroit Medical Center, 311 Mack Avenue, 5th Floor, Detroit, MI 48201, USA.
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31
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Gu Z, Huang B, Li Y, Tian M, Li L, Yu X. Strontium-doped calcium polyphosphate/ultrahigh molecular weight polyethylene composites: A new class of artificial joint components with enhanced biological efficacy to aseptic loosening. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 61:526-33. [DOI: 10.1016/j.msec.2015.12.077] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/22/2015] [Revised: 12/10/2015] [Accepted: 12/28/2015] [Indexed: 12/21/2022]
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32
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Skou ST, Roos EM, Laursen MB, Rathleff MS, Arendt-Nielsen L, Simonsen O, Rasmussen S. Criteria used when deciding on eligibility for total knee arthroplasty--Between thinking and doing. Knee 2016; 23:300-5. [PMID: 26749202 DOI: 10.1016/j.knee.2015.08.012] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/28/2015] [Revised: 08/07/2015] [Accepted: 08/10/2015] [Indexed: 02/02/2023]
Abstract
BACKGROUND Clinical decision-making in total knee arthroplasty (TKA) is a complex process needing further clarification. The aim of this study was to compare TKA eligibility criteria considered most important by orthopedic surgeons (OSs) to characteristics of patients with knee osteoarthritis (OA) eventually found eligible for TKA. METHODS Nine OSs chose the five criteria most important when deciding on TKA eligibility. Cross-sectional data from 200 patients found either eligible (n=100) or not eligible (n=100) for TKA by one of the nine OS, were analyzed in a regression analyses with TKA eligibility as the dependent variable. RESULTS Radiographic severity (n=8), pain (n=9), functional disability (n=8) and not responding to the recommended non-surgical treatment (n=7) were considered most important by OSs. Associations (P<0.25) between TKA eligibility and criteria found important by the OS were demonstrated for worse radiographic severity and more functional limitations, but not for pain and not responding to the recommended non-surgical treatment. Furthermore, more comorbidities and higher Body Mass Index (BMI) were associated with TKA-eligibility, but not found important for TKA eligibility by the OS. CONCLUSION Radiographic severity and functional limitations were confirmed as drivers for TKA eligibility, while pain was not. Not responding to non-surgical treatment was not included in the decision-making, suggesting low uptake of clinical guidelines in clinical practice. This study highlights the complexity of the decision-making with some overlap between the criteria that OSs think they apply and what is actually applied in clinical practice.
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Affiliation(s)
- Søren T Skou
- Orthopaedic Surgery Research Unit, Aalborg University Hospital, 9000 Aalborg, Denmark; Research Unit for Musculoskeletal Function and Physiotherapy, Institute of Sports Science and Clinical Biomechanics, University of Southern Denmark, 5230 Odense, Denmark; Clinical Nursing Research Unit, Aalborg University Hospital, 9000 Aalborg, Denmark; Center for Sensory-Motor Interaction (SMI), Department of Health Science and Technology, Faculty of Medicine, Aalborg University, 9220 Aalborg, Denmark.
| | - Ewa M Roos
- Research Unit for Musculoskeletal Function and Physiotherapy, Institute of Sports Science and Clinical Biomechanics, University of Southern Denmark, 5230 Odense, Denmark.
| | - Mogens B Laursen
- Orthopaedic Surgery Research Unit, Aalborg University Hospital, 9000 Aalborg, Denmark; Center for Sensory-Motor Interaction (SMI), Department of Health Science and Technology, Faculty of Medicine, Aalborg University, 9220 Aalborg, Denmark.
| | - Michael S Rathleff
- Center for Sensory-Motor Interaction (SMI), Department of Health Science and Technology, Faculty of Medicine, Aalborg University, 9220 Aalborg, Denmark.
| | - Lars Arendt-Nielsen
- Center for Sensory-Motor Interaction (SMI), Department of Health Science and Technology, Faculty of Medicine, Aalborg University, 9220 Aalborg, Denmark.
| | - Ole Simonsen
- Orthopaedic Surgery Research Unit, Aalborg University Hospital, 9000 Aalborg, Denmark; Center for Sensory-Motor Interaction (SMI), Department of Health Science and Technology, Faculty of Medicine, Aalborg University, 9220 Aalborg, Denmark.
| | - Sten Rasmussen
- Orthopaedic Surgery Research Unit, Aalborg University Hospital, 9000 Aalborg, Denmark; Center for Sensory-Motor Interaction (SMI), Department of Health Science and Technology, Faculty of Medicine, Aalborg University, 9220 Aalborg, Denmark.
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Gait Characteristics, Symptoms, and Function in Persons With Hip Osteoarthritis: A Longitudinal Study With 6 to 7 Years of Follow-up. J Orthop Sports Phys Ther 2015; 45:539-49. [PMID: 25996360 DOI: 10.2519/jospt.2015.5441] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
STUDY DESIGN Longitudinal laboratory study. OBJECTIVES (1) To compare gait characteristics between individuals with early-stage hip osteoarthritis who underwent total hip replacement (THR) and those who did not undergo THR, and (2) to evaluate whether gait characteristics, function, and symptoms declined among individuals who did not undergo THR during a 6- to 7-year follow-up. BACKGROUND The natural history of symptoms, function, and gait changes secondary to hip osteoarthritis, including potential differences at an early stage of disease, is unknown. METHODS Forty-three individuals (mean age, 58.9 years) with radiographic and symptomatic hip osteoarthritis participated. Outcome measures included 3-D gait analysis; self-reported pain, stiffness, and function; hip range of motion; and the six-minute walk test. Baseline comparisons between individuals who later underwent THR and those who did not undergo THR were made using independent t tests or Mann-Whitney U tests. Comparisons of baseline measures and 6- to 7-year follow-up for the nonoperated individuals were conducted with paired-samples t tests or Wilcoxon signed-rank tests (P<.05). RESULTS Twelve (27.9%) of the 43 individuals initially evaluated had not undergone THR at the 6- to 7-year follow-up. At baseline, these individuals had larger sagittal plane hip and knee joint excursions, larger joint space width, lower body mass index, and superior self-reported function compared with the individuals who later underwent THR. At the 6- to 7-year follow-up, the individuals who did not undergo THR exhibited no decline in gait characteristics, minimum joint space, or overall function. Furthermore, their self-reported pain had significantly decreased (P = .024). CONCLUSION Individuals who did not undergo THR during a 6- to 7-year follow-up period did not exhibit a decline in gait, function, or symptoms compared to those who underwent THR. These findings are suggestive of a phenotype of hip osteoarthritis with a very slow disease progression, particularly in regard to pain. LEVEL OF EVIDENCE Prognosis, level 1b.
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Bundled payments in total joint arthroplasty: targeting opportunities for quality improvement and cost reduction. Clin Orthop Relat Res 2014; 472:188-93. [PMID: 23649225 PMCID: PMC3889448 DOI: 10.1007/s11999-013-3034-3] [Citation(s) in RCA: 347] [Impact Index Per Article: 34.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND Understanding the type and magnitude of services that patients receive postdischarge and the financial impact of readmissions is crucial to assessing the feasibility of accepting bundled payments. QUESTIONS/PURPOSES The purposes of this study were to (1) determine the cost and service components of a 30-day total joint arthroplasty (TJA) episode of care; (2) analyze the portion of the total payment that is used for postdischarge services, including home care; and (3) to evaluate the frequency of readmissions and their impact on total episode-of-care payments. METHODS All payments to Medicare providers (hospitals, postacute care facilities, physicians, and other healthcare providers) for services beginning with the index procedure and extending 30-days postdischarge were analyzed for 250 Medicare beneficiaries undergoing primary or revision TJA from a single institution over a 12 months. Payments and services were aggregated by procedure type and categorized as index procedure, postacute care, and related hospital readmissions. RESULTS Mean episode-of-care payments ranged from USD 25,568 for primary TJA in patients with no comorbidities to USD 50,648 for revision TJA in patients with major comorbidities or complications, with wide variability within and across procedures. Postdischarge payments accounted for 36% of total payments. A total of 49% of patients were transferred to postacute care facilities, accounting for 70% of postdischarge payments. The overall 30-day unplanned readmission rate was 10%, accounting for 11% of postdischarge payments. CONCLUSIONS Episode-of-care payments for TJAs vary widely depending on the type of procedure, patient comorbidities and complications, discharge disposition, and readmission rates. Postdischarge care accounted for more than one-third of total episode payments and varied substantially across patients and procedures.
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Stacy S, Hyder O, Cosgrove D, Herman JM, Kamel I, Geschwind JFH, Gurakar A, Anders R, Cameron A, Pawlik TM. Patterns of consultation and treatment of patients with hepatocellular carcinoma presenting to a large academic medical center in the US. J Gastrointest Surg 2013; 17:1600-8. [PMID: 23780638 PMCID: PMC4002207 DOI: 10.1007/s11605-013-2253-y] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/19/2013] [Accepted: 06/10/2013] [Indexed: 02/07/2023]
Abstract
BACKGROUND Management of hepatocellular carcinoma (HCC) often involves many subspecialist providers, as well as a broad range of treatment options. This study sought to evaluate referral and treatment patterns among patients with HCC at a large academic medical center. METHODS Data from our cancer registry between 2003-2011 were abstracted on 394 patients who were primarily diagnosed/treated for HCC at Johns Hopkins Hospital (JHH); data on patients who were diagnosed/treated with HCC elsewhere and who received secondary treatment at JHH (n = 391) were also abstracted for comparison purposes. RESULTS Among the main cohort, the most common specialties to be consulted were surgery (n = 225, 57.1%), gastroenterology (n = 225, 57.1%), and interventional radiologist (n = 206, 52.3%), while only 96 (24.4%) were referred to medical oncology. Factors associated with surgical consultation included younger age (odds ratio (OR) 3.35, 95% CI 1.62-6.92), tumor size <5 cm (OR 1.82, 1.09-3.02), and unilobar disease (OR 2.94, 1.31-6.59) (all P < 0.05). Patients initially diagnosed/treated elsewhere had larger tumors (4 vs. 6 cm), bilateral disease (19.2 vs. 26.8%), and were more likely to be seen by interventional radiology (all P < 0.05) CONCLUSIONS: Most patients were seen by surgeons, gastroenterologists, or interventional radiologists, with only a minority being seen by medical oncologists. Referral patterns depended on patient-level factors, as well as extent of disease.
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Affiliation(s)
- Sylvie Stacy
- Department of Surgery, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Omar Hyder
- Department of Surgery, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - David Cosgrove
- Department of Medical Oncology, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Joseph M. Herman
- Department of Radiation Oncology, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Ihab Kamel
- Department of Radiology, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Jean-Francois H. Geschwind
- Department of Interventional Radiology, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Ahmet Gurakar
- Department of Medicine, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Robert Anders
- Department of Pathology, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Andrew Cameron
- Department of Surgery, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Timothy M. Pawlik
- Department of Surgery, The Johns Hopkins University School of Medicine, Baltimore, MD, USA. Division of Surgical Oncology, Department of Surgery, Johns Hopkins Hospital, 600 N. Wolfe Street, Blalock 688, Baltimore, MD 21287, USA
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