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Venäläinen MS, Panula VJ, Eskelinen AP, Fenstad AM, Furnes O, Hallan G, Rolfson O, Kärrholm J, Hailer NP, Pedersen AB, Overgaard S, Mäkelä KT, Elo LL. Prediction of Early Adverse Events After THA: A Comparison of Different Machine-Learning Strategies Based on 262,356 Observations From the Nordic Arthroplasty Register Association (NARA) Dataset. ACR Open Rheumatol 2024. [PMID: 39040016 DOI: 10.1002/acr2.11709] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2023] [Revised: 04/20/2024] [Accepted: 06/08/2024] [Indexed: 07/24/2024] Open
Abstract
OBJECTIVE Preoperative risk prediction models can support shared decision-making before total hip arthroplasties (THAs). Here, we compare different machine-learning (ML) approaches to predict the six-month risk of adverse events following primary THA to obtain accurate yet simple-to-use risk prediction models. METHODS We extracted data on primary THAs (N = 262,356) between 2010 and 2018 from the Nordic Arthroplasty Register Association dataset. We benchmarked a variety of ML algorithms in terms of the area under the receiver operating characteristic curve (AUROC) for predicting the risk of revision caused by periprosthetic joint infection (PJI), dislocation or periprosthetic fracture (PPF), and death. All models were internally validated against a randomly selected test cohort (one-third of the data) that was not used for training the models. RESULTS The incidences of revisions because of PJI, dislocation, and PPF were 0.8%, 0.4%, and 0.3%, respectively, and the incidence of death was 1.2%. Overall, Lasso regression with stable iterative variable selection (SIVS) produced models using only four to five input variables but with AUROC comparable to more complex models using all 32 variables available. The SIVS-based Lasso models based on age, sex, preoperative diagnosis, bearing couple, fixation, and surgical approach predicted the risk of revisions caused by PJI, dislocations, and PPF, as well as death, with AUROCs of 0.61, 0.67, 0.76, and 0.86, respectively. CONCLUSION Our study demonstrates that satisfactory predictive potential for adverse events following THA can be reached with parsimonious modeling strategies. The SIVS-based Lasso models may serve as simple-to-use tools for clinical risk assessment in the future.
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Affiliation(s)
- Mikko S Venäläinen
- Turku University Hospital, University of Turku and Åbo Akademi University, Turku, Finland
| | | | - Antti P Eskelinen
- Coxa Hospital for Joint Replacement and University of Tampere, Tampere, Finland, and the Finnish Arthroplasty Register, Finnish Institute for Health and Welfare, Helsinki, Finland
| | | | - Ove Furnes
- Haukeland University Hospital and University of Bergen, Bergen, Norway
| | - Geir Hallan
- Haukeland University Hospital and University of Bergen, Bergen, Norway
| | - Ola Rolfson
- University of Gothenburg, Gothenburg, Sweden
| | | | | | - Alma B Pedersen
- Aarhus University Hospital and Aarhus University, Aarhus, Denmark
| | - Søren Overgaard
- Copenhagen University Hospital and University of Copenhagen, Copenhagen, Denmark
| | - Keijo T Mäkelä
- Turku University Hospital and University of Turku, Turku, Finland, and the Finnish Arthroplasty Register, Finnish Institute for Health and Welfare, Helsinki, Finland
| | - Laura L Elo
- University of Turku and Åbo Akademi University, Turku, Finland
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Boyle L, Lumley T, Cumin D, Campbell D, Merry AF. Using days alive and out of hospital to measure surgical outcomes in New Zealand: a cross-sectional study. BMJ Open 2023; 13:e063787. [PMID: 37491100 PMCID: PMC10373692 DOI: 10.1136/bmjopen-2022-063787] [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] [Indexed: 07/27/2023] Open
Abstract
OBJECTIVES To measure differences at various deciles in days alive and out of hospital to 90 days (DAOH90) and explore its utility for identifying outliers of performance among district health boards (DHBs). METHODS Days in hospital and mortality within 90 days of surgery were extracted by linking data from the New Zealand National Minimum Data Set and the births and deaths registry between 1 January 2011 and 31 December 2021 for all adults in New Zealand undergoing acute laparotomy (AL-a relatively high-risk group), elective total hip replacement (THR-a medium risk group) or lower segment caesarean section (LSCS-a low-risk group). DAOH90 was calculated without censoring to zero in cases of mortality. For each DHB, direct risk standardisation was used to adjust for potential confounders and presented in deciles according to baseline patient risk. The Mann-Whitney U test assessed overall DAOH90 differences between DHBs, and comparisons are presented between selected deciles of DAOH90 for each operation. RESULTS We obtained national data for 35 175, 52 032 and 117 695 patients undergoing AL, THR and LSCS procedures, respectively. We have demonstrated that calculating DAOH without censoring zero allows for differences between procedures and DHBs to be identified. Risk-adjusted national mean DAOH90 Scores were 64.0 days, 79.0 days and 82.0 days at the 0.1 decile and 75.0 days, 82.0 days and 84.0 days at the 0.2 decile for AL, THR and LSCS, respectively, matching to their expected risk profiles. Differences between procedures and DHBs were most marked at lower deciles of the DAOH90 distribution, and outlier DHBs were detectable. Corresponding 90-day mortality rates were 5.45%, 0.78% and 0.01%. CONCLUSION In New Zealand after direct risk adjustment, differences in DAOH90 between three types of surgical procedure reflected their respective risk levels and associated mortality rates. Outlier DHBs were identified for each procedure. Thus, our approach to analysing DAOH90 appears to have considerable face validity and potential utility for contributing to the measurement of perioperative outcomes in an audit or quality improvement setting.
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Affiliation(s)
- Luke Boyle
- Department of Statistics, The University of Auckland, Auckland, New Zealand
| | - Thomas Lumley
- Department of Statistics, The University of Auckland, Auckland, New Zealand
| | - David Cumin
- Department of Anaesthesiology, The University of Auckland, Auckland, New Zealand
| | - Doug Campbell
- Department of Anaesthesia, Auckland City Hospital, Auckland, New Zealand
| | - Alan Forbes Merry
- Department of Anaesthesiology, The University of Auckland, Auckland, New Zealand
- Department of Anaesthesia, Auckland City Hospital, Auckland, New Zealand
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Morin N, Taylor S, Krahn D, Baghirzada L, Chong M, Harrison TG, Cameron A, Ruzycki SM. Strategies for intraoperative glucose management: a scoping review. Can J Anaesth 2023; 70:253-270. [PMID: 36450943 DOI: 10.1007/s12630-022-02359-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Revised: 06/04/2022] [Accepted: 06/07/2022] [Indexed: 12/03/2022] Open
Abstract
PURPOSE Perioperative hyperglycemia is associated with adverse outcomes for patients with and without diabetes. Guidelines and published protocols for intraoperative glycemic management have substantial variation in their recommendations. We sought to characterize the current evidence-guiding intraoperative glycemic management in a scoping review. SOURCES Our search strategy included MEDLINE (Ovid and EBSCO), PubMed, PubMed Central, EMBASE, CINAHL, Cochrane Library, SciVerse Scopus, and Web of Science and a gray literature search of Google, Google Scholar, hand searching of the reference lists of included articles, OAISter, institutional protocols, and ClinicalTrails.gov. PRINCIPAL FINDINGS We identified 41 articles that met our inclusion criteria, 24 of which were original research studies. Outcomes and exposures were defined heterogeneously across studies, which limited comparison and synthesis. Investigators often created arbitrary and differing categories of glucose values rather than analyzing glucose as a continuous variable, which limited our ability to combine results from different studies. In addition, the study populations and surgery types also varied considerably, with few studies performed during day surgeries and specific surgical disciplines. Study populations often included more than one type of surgery, indication, and urgency that were expected to have varying physiologic and inflammatory responses. Combining low- and high-risk patients in the same study population may obscure the harms or benefits of intraoperative glycemic management for high-risk procedures or patients. CONCLUSION Future studies examining intraoperative glycemic management should carefully consider the study population, surgical characteristics, and pre- and postoperative management of hyperglycemia.
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Affiliation(s)
| | - Sarah Taylor
- Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Danae Krahn
- Department of Anesthesiology, Perioperative and Pain Medicine, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Leyla Baghirzada
- Department of Anesthesiology, Perioperative and Pain Medicine, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Michael Chong
- Department of Anesthesiology, Perioperative and Pain Medicine, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Tyrone G Harrison
- Department of Medicine, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
- Department of Community Health Sciences, Cumming School of Medicine, University of Calgary, Room 1422, 3330 Hospital Drive NW, Calgary, AB, T2N 2T9, Canada
| | - Anne Cameron
- Department of Obstetrics and Gynecology, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Shannon M Ruzycki
- Department of Medicine, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada.
- Department of Community Health Sciences, Cumming School of Medicine, University of Calgary, Room 1422, 3330 Hospital Drive NW, Calgary, AB, T2N 2T9, Canada.
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4
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Luger M, de Vries M, Feldler S, Hipmair G, Gotterbarm T, Klasan A. A propensity score-matched analysis on the impact of patient and surgical factors on early periprosthetic joint infection in minimally invasive anterolateral and transgluteal total hip arthroplasty. Arch Orthop Trauma Surg 2023:10.1007/s00402-022-04756-z. [PMID: 36629904 PMCID: PMC10374686 DOI: 10.1007/s00402-022-04756-z] [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: 03/17/2022] [Accepted: 12/29/2022] [Indexed: 01/12/2023]
Abstract
INTRODUCTION Increased risk of periprosthetic joint infection (PJI) in minimally invasive (MIS) total hip arthroplasty (THA) is still debated. This study aimed to identify differences in surgical and patient-related risk factors for PJI between an MIS anterolateral approach and transgluteal-modified Hardinge approach. METHODS A retrospective cohort of 5315 THAs performed between 2006 and 2019 at a single institution was screened. Short stem THAs performed via an MIS anterolateral approach in the supine position and standard straight stem THAs performed via a transgluteal modified Hardinge approach were included. Propensity score matching was performed to control for selection bias. After matching, 1405 (34.3%) short stem THAs implanted via MIS anterolateral approach and 2687 (65.7%) straight stem THAs implanted via a transgluteal modified Hardinge approach were included. The risk of PJI due to patient-specific and surgical factors was retrospectively analyzed using chi-square test and multivariate regression analysis. RESULTS PJI occurred in 1.1% in both MIS anterolateral and transgluteal approach (p = 0.823). Multivariate regression showed an increased infection risk for patients with a BMI between 35 and 39.99 kg/m2 (OR 6.696; CI 1.799-24.923; p = 0.005), which could not be demonstrated for transgluteal approach (OR 0.900; CI 0.900-4.144; p = 0.93). A BMI ≥ 40 kg/m2 (OR 14.150; CI 2.416-82.879; p = 0.003) was detected as a risk factor for PJI only in anterolateral approach. Increased operation time ≥ 121 min showed a significantly increased risk for PJI in the general cohort (OR 6.989; CI1.286-37.972; p = 0.024). CONCLUSION Minimally invasive anterolateral and transgluteal THA show a comparable rate of early PJI within the first year of index surgery. A BMI of ≥ 35 kg/m2 was detected as a clear risk factor for infection in the anterolateral approach. Prolonged operation time ≥ 121 min increases the risk of PJI regardless of approach.
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Affiliation(s)
- Matthias Luger
- Department for Orthopedics and Traumatology, Kepler University Hospital GmbH, Krankenhausstrasse 9, 4020, Linz, Austria. .,Johannes Kepler University Linz, Altenberger Strasse 69, 4040, Linz, Austria.
| | - Marcel de Vries
- Department for Orthopedics and Traumatology, Kepler University Hospital GmbH, Krankenhausstrasse 9, 4020, Linz, Austria.,Johannes Kepler University Linz, Altenberger Strasse 69, 4040, Linz, Austria
| | - Sandra Feldler
- Department for Orthopedics and Traumatology, Kepler University Hospital GmbH, Krankenhausstrasse 9, 4020, Linz, Austria.,Johannes Kepler University Linz, Altenberger Strasse 69, 4040, Linz, Austria
| | - Günter Hipmair
- Department for Orthopedics and Traumatology, Kepler University Hospital GmbH, Krankenhausstrasse 9, 4020, Linz, Austria.,Johannes Kepler University Linz, Altenberger Strasse 69, 4040, Linz, Austria
| | - Tobias Gotterbarm
- Department for Orthopedics and Traumatology, Kepler University Hospital GmbH, Krankenhausstrasse 9, 4020, Linz, Austria.,Johannes Kepler University Linz, Altenberger Strasse 69, 4040, Linz, Austria
| | - Antonio Klasan
- Johannes Kepler University Linz, Altenberger Strasse 69, 4040, Linz, Austria
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Dockery DM, Allu S, Glasser J, Antoci V, Born CT, Garcia DR. Comparison of periprosthetic joint infection rates in the direct anterior approach and non-anterior approaches to primary total hip arthroplasty: a systematic review and meta-analysis. Hip Int 2022:11207000221129216. [PMID: 36214269 DOI: 10.1177/11207000221129216] [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] [Indexed: 02/04/2023]
Abstract
BACKGROUND Periprosthetic joint infection is a serious complication and devastating mode of failure of total hip arthroplasty. Various surgical approaches exist for total hip arthroplasty, including the increasingly popularised direct anterior approach. There is no clear consensus on which approach is least associated with periprosthetic joint infection. The objective of this meta-analysis was to compare the rate of periprosthetic joint infection between surgical approaches to primary total hip arthroplasty for osteoarthritis. METHODS A search of 3 electronic databases (PubMed/MEDLINE, Embase, and Cochrane Library) was conducted for relevant studies up to June 2020 with a defined list of inclusion and exclusion criteria. Randomised controlled trials and longitudinal studies reporting periprosthetic joint infection rates after primary total hip arthroplasty for osteoarthritis were included based on surgical approach. Data extraction was completed, and a meta-analysis was then performed using OpenMeta[Analyst] software. RESULTS A total of 24,407 hips were included for meta-analysis with an overall PJI incidence of 0.57%. The incidence rate for periprosthetic joint infection was 0.77% in the direct anterior approach group and 0.44% in the non-anterior approach group. The use of an anterior approach for a total hip arthroplasty was associated with an increased risk for periprosthetic joint infection (odds ratio = 1.404; 95% confidence interval, 0.711-2.771; p = 0.03). CONCLUSIONS The direct anterior approach to total hip arthroplasty may be associated with a significantly increased risk for periprosthetic joint infection compared to non-anterior approaches, even though the overall rate was still small. This should be considered by orthopedic surgeons when choosing the surgical approach.
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Affiliation(s)
| | - Sai Allu
- Warren Alpert Medical School of Brown University, Providence, RI, USA.,Brown University, Providence, RI, USA
| | - Jillian Glasser
- Weiss Center for Orthopaedic Trauma Research, Rhode Island Hospital, Providence, RI, USA
| | - Valentin Antoci
- Warren Alpert Medical School of Brown University, Providence, RI, USA.,Weiss Center for Orthopaedic Trauma Research, Rhode Island Hospital, Providence, RI, USA.,Department of Orthopaedic Surgery, Warren Alpert Medical School of Brown University, Providence, RI, USA
| | - Christopher T Born
- Warren Alpert Medical School of Brown University, Providence, RI, USA.,Weiss Center for Orthopaedic Trauma Research, Rhode Island Hospital, Providence, RI, USA.,Department of Orthopaedic Surgery, Warren Alpert Medical School of Brown University, Providence, RI, USA
| | - Dioscaris R Garcia
- Warren Alpert Medical School of Brown University, Providence, RI, USA.,Department of Orthopaedic Surgery, Warren Alpert Medical School of Brown University, Providence, RI, USA
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Acuña AJ, Do MT, Samuel LT, Grits D, Otero JE, Kamath AF. Periprosthetic joint infection rates across primary total hip arthroplasty surgical approaches: a systematic review and meta-analysis of 653,633 procedures. Arch Orthop Trauma Surg 2022; 142:2965-2977. [PMID: 34595547 DOI: 10.1007/s00402-021-04186-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/19/2021] [Accepted: 09/19/2021] [Indexed: 11/30/2022]
Abstract
INTRODUCTION Evidence demonstrates comparable clinical outcomes across the various surgical approaches to primary total hip arthroplasty (THA). However, high-quality contemporary data regarding periprosthetic joint infection (PJI) risk between direct anterior approach (DAA) and other (THA) approaches is lacking. This systematic review and meta-analysis evaluated PJI rates reported in the literature between the DAA and other approaches. MATERIALS AND METHODS Five online databases were queried for all studies published from January 1st, 2000 through February 17th, 2021 that reported PJI rates between DAA and other surgical approaches. Studies reporting on primary THAs for osteoarthritis (OA) and that included PJI rates segregated by surgical approach were included. Articles reporting on revision THA, alternative THA etiologies, or minimally invasive techniques were excluded. Mantel-Haenszel (M-H) models were utilized to evaluate the pooled effect of surgical approach on infection rates. Validated risk of bias and methodological quality assessment tools were applied to each study. Multiple sensitivity analyses were conducted to evaluate the robustness of analyses. RESULTS 28 articles reporting on 653,633 primary THAs were included. No differences were found between DAA cohorts and combined other approaches (OR: 0.95; 95% CI 0.74-1.21; p = 0.67) as well as segregated anterolateral approach cohorts (OR: 0.82, 95% CI 0.64-1.06; p = 0.13). However, DAA patients had a significantly reduced risk of infection compared to those undergoing posterior (OR: 0.66, 95% CI 0.58-0.74; p < 0.0001) and direct lateral (OR: 0.56, 95% CI 0.48-0.65; p < 0.00001) approaches. CONCLUSION The DAA to primary THA had comparable or lower PJI risk when compared to other contemporary approaches. The results of the most up-to-date evidence available serve to encourage adult reconstruction surgeons who have already adopted the DAA. Additionally, orthopaedic surgeons considering adoption or use of the direct anterior approach for other reasons should not be dissuaded over theoretical concern for a general increase in the risk of PJI. LEVEL OF EVIDENCE Level III.
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Affiliation(s)
- Alexander J Acuña
- Department of Orthopaedic Surgery, Orthopaedic and Rheumatologic Institute, Cleveland Clinic Foundation, 9500 Euclid Avenue, Cleveland, OH, 44195, USA
| | - Michael T Do
- Department of Orthopaedic Surgery, Orthopaedic and Rheumatologic Institute, Cleveland Clinic Foundation, 9500 Euclid Avenue, Cleveland, OH, 44195, USA
| | - Linsen T Samuel
- Department of Orthopaedic Surgery, Orthopaedic and Rheumatologic Institute, Cleveland Clinic Foundation, 9500 Euclid Avenue, Cleveland, OH, 44195, USA
| | - Daniel Grits
- Department of Orthopaedic Surgery, Orthopaedic and Rheumatologic Institute, Cleveland Clinic Foundation, 9500 Euclid Avenue, Cleveland, OH, 44195, USA
| | - Jesse E Otero
- OrthoCarolina Hip and Knee Center, 1915 Randolph Road, Charlotte, NC, 28207, USA
| | - Atul F Kamath
- Department of Orthopaedic Surgery, Orthopaedic and Rheumatologic Institute, Cleveland Clinic Foundation, 9500 Euclid Avenue, Cleveland, OH, 44195, USA.
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Reichert JC, Wassilew GI, von Rottkay E, Noeth U. Compared learning curves of the direct anterior and anterolateral approach for minimally invasive hip replacement. Orthop Rev (Pavia) 2022; 14:37500. [PMID: 36034727 PMCID: PMC9404252 DOI: 10.52965/001c.37500] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 09/28/2023] Open
Abstract
Minimally invasive hip arthroplasty becomes increasingly popular. It is technically challenging and the approaches used are associated with a considerable learning curve. This nurtures concerns regarding patient safety, surgical training, and cost effectiveness. Consequently, we initiated a study comparing the learning curves of a supervised trainee surgeon utilizing both the anterolateral and direct anterior approach (DAA) when introduced to minimally invasive hip replacement surgery. Outcome measurements included the Harris hip score (HHS), cup inclination and anteversion, offset and leg length, stem placement, surgical time and complications. Time from incision to suture decreased significantly over time but did not differ between both groups. The functional outcomes (HHS) after six weeks and three months were comparable (p=0.069 and 0.557) and within the expected range equalling 90.3 (anterior) and 89.2 (anterolateral) points. With both approaches safe component placement was readily achieved. Both offset and leg length, however, were reconstructed more reliably with the DAA (p=0.02 and 0.001). A higher rate of dislocations was seen with the anterior, more perioperative infections with the anterolateral approach. We suggest that supervision by an experienced surgeon favourably influences the learning curves for both the minimally invasive DAA and anterolateral approach and conclude that the greatest improvement is seen within the first 60 cases.
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Affiliation(s)
- Johannes C Reichert
- Department of Orthopedics and Orthopaedic Surgery, University Medicine Greifswald; Department of Orthopaedic and Trauma Surgery, Evangelisches Waldkrankenhaus Spandau
| | - Georgi I Wassilew
- Department of Orthopedics and Orthopaedic Surgery, University Medicine Greifswald
| | - Eberhard von Rottkay
- Department of Orthopaedic and Trauma Surgery, Evangelisches Waldkrankenhaus Spandau
| | - Ulrich Noeth
- Department of Orthopaedic and Trauma Surgery, Evangelisches Waldkrankenhaus Spandau
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Shah NV, Huddleston HP, Wolff DT, Newman JM, Pivec R, Naziri Q, Shah VR, Maheshwari AV. Does Surgical Approach for Total Hip Arthroplasty Impact Infection Risk in the Obese Patient? A Systematic Review. Orthopedics 2022; 45:e67-e72. [PMID: 34978509 DOI: 10.3928/01477447-20211227-03] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
This systematic review evaluated the combined effects of obesity and surgical approach on periprosthetic joint infection (PJI) rates after total hip arthroplasty (THA). Wound complication and PJI rates were elevated among patients with body mass index (BMI) of 30 kg/m2 or greater and 35 kg/m2 or greater, respectively, with the direct anterior approach (DAA). A BMI of 30 kg/m2 or greater also increased the risk of PJI with the posterior approach. Patients with BMI of 30 kg/m2 or greater undergoing anterolateral approach THA did not have increased risk of PJI. Patients with elevated BMI (≥30 kg/m2) are at risk for PJI, regardless of approach. Patients undergoing DAA THA who have BMI of 35 kg/m2 or greater may have an increased risk of PJI compared with those undergoing THA with other approaches. [Orthopedics. 2022;45(2):e67-e72.].
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9
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Stone B, Nugent M, Young SW, Frampton C, Hooper GJ. The lifetime risk of revision following total knee arthroplasty : a New Zealand Joint Registry study. Bone Joint J 2022; 104-B:235-241. [PMID: 35094573 DOI: 10.1302/0301-620x.104b2.bjj-2021-0890.r1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
AIMS The success of total knee arthroplasty (TKA) is usually measured using functional outcome scores and revision-free survivorship. However, reporting the lifetime risk of revision may be more meaningful to patients when gauging risks, especially in younger patients. We aimed to assess the lifetime risk of revision for patients in different age categories at the time of undergoing primary TKA. METHODS The New Zealand Joint Registry database was used to obtain revision rates, mortality, and the indications for revision for all primary TKAs performed during an 18-year period between January 1999 and December 2016. Patients were stratified into age groups at the time of the initial TKA, and the lifetime risk of revision was calculated according to age, sex, and the American Society of Anesthesiologists (ASA) grade. The most common indications for revision were also analyzed for each age group. RESULTS The overall ten-year survival rate was 95.6%. This was lowest in the youngest age group (between 46 and 50 years) and increased sequentially with increasing age. The lifetime risk of requiring revision was 22.4% in those aged between 46 and 50 years at the time of the initial surgery, and decreased linearly with increasing age to 1.15% in those aged between 90 and 95 years at the time of surgery. Higher ASA grades were associated with increased lifetime risk of revision in all age groups. The three commonest indications for revision were aseptic loosening, infection, and unexplained pain. Young males, aged between 46 and 50 years, had the highest lifetime risk of revision (25.2%). CONCLUSION Lifetime risk of revision may be a more meaningful measure of outcome than implant survival at defined time periods when counselling patients prior to TKA. This study highlights the considerably higher lifetime risk of revision surgery for all indications, including infection, in younger male patients. Cite this article: Bone Joint J 2022;104-B(2):235-241.
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Affiliation(s)
- Bradley Stone
- Department of Orthopaedic Surgery and Musculoskeletal Medicine, University of Otago, Christchurch, New Zealand
| | - Mary Nugent
- Canterbury District Health Board, Christchurch, New Zealand
| | - Simon W Young
- Waitemata District Health Board, Takapuna, New Zealand
| | - Christopher Frampton
- Department of Orthopaedic Surgery and Musculoskeletal Medicine, University of Otago, Christchurch, New Zealand
| | - Gary J Hooper
- Department of Orthopaedic Surgery and Musculoskeletal Medicine, University of Otago, Christchurch, New Zealand
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Prentice HA, Chan PH, Royse KE, Hinman AD, Reddy NC, Paxton EW. Revision Risk in a Cohort of US Patients Younger Than 55 Undergoing Primary Elective Total Hip Arthroplasty. J Arthroplasty 2022; 37:303-311. [PMID: 34718107 DOI: 10.1016/j.arth.2021.10.014] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Revised: 10/11/2021] [Accepted: 10/21/2021] [Indexed: 02/02/2023] Open
Abstract
BACKGROUND As indications for elective total hip arthroplasty (THA) expand to younger patients, we sought to (1) compare revision risk following primary elective THA in patients <55 years at the time of their THA to patients aged ≥65 years and (2) identify specific risk factors for revision in patients <55 years. METHODS A Kaiser Permanente's total joint replacement registry was used to conduct a cohort study including primary elective THA patients aged ≥18 (2001-2018). In total, 11,671 patients <55 years and 53,106 patients ≥65 years were included. Multiple Cox regression was used to evaluate cause-specific revision risk, including septic revision, aseptic loosening, instability, and periprosthetic fracture. Stepwise Cox regression was used to identify patient and surgical factors associated with cause-specific revision in patients <55 years. RESULTS Patients <55 years had a higher risk of septic revision (hazard ratio [HR] = 1.30, 95% confidence interval [CI] = 1.02-1.66), aseptic loosening (HR = 2.60, 95% CI = 1.99-3.40), and instability (HR = 1.35, 95% CI = 1.09-1.68), but a lower risk of revision for periprosthetic fracture (HR = 0.36, 95% CI = 0.22-0.59) compared to patients aged ≥65 years. In the <55 age group, risk factors for septic revision included higher body mass index, drug abuse, and liver disease. Hypertension, anterior approach, and ceramic-on-ceramic were associated with aseptic loosening. White race, American Society of Anesthesiologists classification ≥3, smoker, paralysis, posterior approach, ceramic-on-ceramic, and smaller head diameter were associated with instability. CONCLUSION Identified risk factors varied depending on the cause for revision. Although septic revisions were related to patient characteristics, more modifiable factors, such as implant or surgical approach, were associated with revision due to aseptic loosening and instability. LEVEL OF EVIDENCE III.
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Affiliation(s)
| | | | - Kathryn E Royse
- Surgical Outcomes & Analysis, Kaiser Permanente, San Diego, CA
| | - Adrian D Hinman
- Department of Orthopaedics, The Permanente Medical Group, San Leandro, CA
| | - Nithin C Reddy
- Department of Orthopaedics, Southern California Permanente Medical Group, San Diego, CA
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Lynch BC, Swanson DR, Marmor WA, Gibb B, Komatsu DE, Wang ED. The Relationship between Bacterial Load and Initial Run Time of a Surgical Helmet. J Shoulder Elb Arthroplast 2022; 6:24715492221142688. [DOI: 10.1177/24715492221142688] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Revised: 11/09/2022] [Accepted: 11/13/2022] [Indexed: 12/03/2022] Open
Abstract
Background Periprosthetic joint infection (PJI) is a complication of arthroplasty surgery with significant morbidity and mortality. Surgical helmets are a possible source of infection. Pre-existing dust and microorganisms on its surface may be blown into the surgical field by the helmet ventilation system. Methods Twenty surgical helmets at our institution were assessed through microscopy and polymerase chain reaction testing. Helmets were arranged with agar plates under the front and rear outflow vents. Helmets ran while plates were exchanged at different time points. Bacterial growth was assessed via colony counts and correlated with fan operating time. Gram staining and 16S sequencing were performed to identify bacterial species. Results The primary microbiological contaminate identified was Burkholderia. There was an inverse relationship between colony formation and fan operating time. The highest number of colonies was found within the first minute of fan operating time. There was a significant decrease in the number of colonies formed from the zero-minute to the three (27 vs 5; P = <.01), four (27 vs 3; P = <.01), and five-minute (27 vs 4; P = <.01) time points for the front outflow plates. A significant difference was also observed between the one-minute and four-minute time points ( P = .046). Conclusion We observed an inverse relationship between bacterial spread helmet fan operation time, which may correlate with dispersion of pre-existing contaminates. To decrease contamination risk, we recommend that helmets are run for at least 3 min prior to entering the operating room.
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Affiliation(s)
- Brian C Lynch
- Department of Orthopaedics and Rehabilitation, Stony Brook University, Stony Brook, NY, USA
| | - David R Swanson
- Department of Orthopaedics and Rehabilitation, Stony Brook University, Stony Brook, NY, USA
| | - William A Marmor
- Department of Orthopaedics and Rehabilitation, Stony Brook University, Stony Brook, NY, USA
| | - Bryan Gibb
- Department of Biological and Chemical Sciences, New York Institute of Technology, Old Westbury, NY, USA
| | - David E Komatsu
- Department of Orthopaedics and Rehabilitation, Stony Brook University, Stony Brook, NY, USA
| | - Edward D Wang
- Department of Orthopaedics and Rehabilitation, Stony Brook University, Stony Brook, NY, USA
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Khan MN, Ali MU, Bhambani L, Prashanth N, Tross S. Outcomes of Total Joint Arthroplasty in Black, Asian, Minority Ethnic Groups Versus Local Population: A Retrospective Review. Cureus 2021; 13:e19868. [PMID: 34963868 PMCID: PMC8709536 DOI: 10.7759/cureus.19868] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/24/2021] [Indexed: 11/05/2022] Open
Abstract
BACKGROUND Total hip and knee replacement decrease the disability caused by osteoarthritis of the lower extremities. Although it has been established that racial and ethnic minorities underutilize these procedures, little data on postoperative outcomes exists. The impact of race on postoperative Oxford scores and complications following total joint arthroplasty (TJA) will be investigated in this retrospective review. METHODS A retrospective review of 120 elective primary TJA procedures was undertaken between January 2016 and December 2019 in a single institution. To measure variations between the various groups, t-tests were used on their Oxford scores, and chi-squared bivariate regression was used to classify all categorical variables and the association of ethnicity and surgery type with gender. RESULTS There were 62 (51.6%) White patients and 59 (49.1.0%) Black, Asian, Minority Ethnic (BAME) patients in total. The majority of the patients were females (60.9% vs 39.2%, p = 0.032). Low vitamin D levels were seen in a small percentage of patients in the sample (15.8% vs 84.2%, p = 0.460). There is a statistically important connection (p = 0.001) between the surgery type (total knee replacement [TKR]/total hip replacement [THR]) and gender; 41 females had TKR surgery, and 32 had THR surgery. CONCLUSION The study found that the relationships between ethnicity (White/BAME) and gender as well as surgery type (TKR/THR) and gender are statistically important. In all cases with low vitamin D and normal vitamin D levels, White patients had higher overall Oxford hip scores than the BAME patients. To comprehend the differences discovered, further research is needed. To try to eliminate the difference, targeted approaches should be created.
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Affiliation(s)
| | - Muhammad U Ali
- Trauma and Orthopaedics, Health Education Northwest London, London, GBR
| | - Lokesh Bhambani
- Trauma and Orthopaedics, London Northwest NHS Trust, London, GBR
| | | | - Samantha Tross
- Trauma and Orthopaedics, London Northwest Trust, London, GBR
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Panula VJ, Alakylä KJ, Venäläinen MS, Haapakoski JJ, Eskelinen AP, Manninen MJ, Kettunen JS, Puhto AP, Vasara AI, Elo LL, Mäkelä KT. Risk factors for prosthetic joint infections following total hip arthroplasty based on 33,337 hips in the Finnish Arthroplasty Register from 2014 to 2018. Acta Orthop 2021; 92:665-672. [PMID: 34196592 PMCID: PMC8635657 DOI: 10.1080/17453674.2021.1944529] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
Background and purpose - Periprosthetic joint infection (PJI) is a devastating complication and more information on risk factors for PJI is required to find measures to prevent infections. Therefore, we assessed risk factors for PJI after primary total hip arthroplasty (THA) in a large patient cohort.Patients and methods - We analyzed 33,337 primary THAs performed between May 2014 and January 2018 based on the Finnish Arthroplasty Register (FAR). Cox proportional hazards regression was used to estimate hazard ratios with 95% confidence intervals (CI) for first PJI revision operation using 25 potential patient- and surgical-related risk factors as covariates.Results - 350 primary THAs were revised for the first time due to PJI during the study period. The hazard ratios for PJI revision in multivariable analysis were 2.0 (CI 1.3-3.2) for ASA class II and 3.2 (2.0-5.1) for ASA class III-IV compared with ASA class I, 1.4 (1.1-1.7) for bleeding > 500 mL compared with < 500 mL, 0.4 (0.2-0.7) for ceramic-on-ceramic bearing couple compared with metal-on-polyethylene and for the first 3 postoperative weeks, 3.0 (1.6-5.6) for operation time of > 120 minutes compared with 45-59 minutes, and 2.6 (1.4-4.9) for simultaneous bilateral operation. In the univariable analysis, hazard ratios for PJI revision were 2.3 (1.7-3.3) for BMI of 31-35 and 5.0 (3.5-7.1) for BMI of > 35 compared with patients with BMI of 21-25.Interpretation - We found several modifiable risk factors associated with increased PJI revision risk after THA to which special attention should be paid preoperatively. In particular, high BMI may be an even more prominent risk factor for PJI than previously assessed.
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Affiliation(s)
- Valtteri J Panula
- Department of Orthopaedics and Traumatology, Turku University Hospital, and University of Turku, Turku
| | - Kasperi J Alakylä
- Department of Orthopaedics and Traumatology, Turku University Hospital, and University of Turku, Turku;,CONTACT Kasperi J ALAKYLÄ
| | - Mikko S Venäläinen
- Turku Bioscience Centre, University of Turku and Åbo Akademi University, Turku
| | | | | | | | - Jukka S Kettunen
- Department of Orthopaedics and Traumatology, Kuopio University Hospital, Kuopio
| | - Ari-Pekka Puhto
- Division of Operative Care, Department of Orthopaedic and Trauma Surgery, Oulu University Hospital, Oulu
| | | | - Laura L Elo
- Turku Bioscience Centre, University of Turku and Åbo Akademi University, Turku
| | - Keijo T Mäkelä
- Department of Orthopaedics and Traumatology, Turku University Hospital, and University of Turku, Turku
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14
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Ren X, Ling L, Qi L, Liu Z, Zhang W, Yang Z, Wang W, Tu C, Li Z. Patients' risk factors for periprosthetic joint infection in primary total hip arthroplasty: a meta-analysis of 40 studies. BMC Musculoskelet Disord 2021; 22:776. [PMID: 34511099 PMCID: PMC8436433 DOI: 10.1186/s12891-021-04647-1] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Accepted: 08/21/2021] [Indexed: 12/23/2022] Open
Abstract
BACKGROUND Periprosthetic joint infection (PJI) is a catastrophic complication after total hip arthroplasty (THA). Our meta-analysis aimed to identify the individual-related risk factors that predispose patients to PJI following primary THA. METHODS Comprehensive literature retrieval from Pubmed, Web of Science, and the Cochrane Library was performed from inception to Feb 20th, 2021. Patient-related risk factors were compared as per the modifiable factors (BMI, smoke and alcohol abuse), non-modifiable factors (gender, age), and medical history characteristics, such as diabetes mellitus (DM), avascular necrosis (AVN) of femoral head, femoral neck fracture, rheumatoid arthritis (RA), cardiovascular disease (CVD), and osteoarthritis (OA) etc. The meta-analysis was applied by using risk ratios with 95% corresponding intervals. Sensitivity analysis and publication bias were performed to further assess the credibility of the results. RESULTS Overall, 40 studies with 3,561,446 hips were enrolled in our study. By implementing cumulative meta-analysis, higher BMI was found associated with markedly increased PJI risk after primary THA [2.40 (2.01-2.85)]. Meanwhile, medical characteristics including DM [1.64 (1.25-2.21)], AVN [1.65 (1.07-2.56)], femoral neck fracture [1.75 (1.39-2.20)], RA [1.37 (1.23-1.54)], CVD [1.34 (1.03-1.74)], chronic pulmonary disease (CPD) [1.22 (1.08-1.37)], neurological disease [1.19 (1.05-1.35)], opioid use [1.53 (1.35-1.73)] and iron-deficiency anemia (IDA) [1.15 (1.13-1.17)] were also significantly correlated with higher rate of PJI. Conversely, dysplasia or dislocation [0.65 (0.45-0.93)], and OA [0.70 (0.62-0.79)] were protective factors. Of Note, female gender was protective for PJI only after longer follow-up. Besides, age, smoking, alcohol abuse, previous joint surgery, renal disease, hypertension, cancer, steroid use and liver disease were not closely related with PJI risk. CONCLUSION Our finding suggested that the individual-related risk factors for PJI after primary THA included high BMI, DM, AVN, femoral neck fracture, RA, CVD, CPD, neurological disease, opioid use and IDA, while protective factors were female gender, dysplasia/ dislocation and OA.
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Affiliation(s)
- Xiaolei Ren
- Department of Orthopaedics, Hunan Key Laboratory of Tumor Models and Individualized Medicine, The Second Xiangya Hospital, Central South University, Changsha, Hunan, P.R. China
| | - Lin Ling
- Department of Orthopaedics, Hunan Key Laboratory of Tumor Models and Individualized Medicine, The Second Xiangya Hospital, Central South University, Changsha, Hunan, P.R. China
| | - Lin Qi
- Department of Orthopaedics, Hunan Key Laboratory of Tumor Models and Individualized Medicine, The Second Xiangya Hospital, Central South University, Changsha, Hunan, P.R. China
| | - Zhongyue Liu
- Department of Orthopaedics, Hunan Key Laboratory of Tumor Models and Individualized Medicine, The Second Xiangya Hospital, Central South University, Changsha, Hunan, P.R. China
| | - Wenchao Zhang
- Department of Orthopaedics, Hunan Key Laboratory of Tumor Models and Individualized Medicine, The Second Xiangya Hospital, Central South University, Changsha, Hunan, P.R. China
| | - Zhimin Yang
- Department of Orthopaedics, Hunan Key Laboratory of Tumor Models and Individualized Medicine, The Second Xiangya Hospital, Central South University, Changsha, Hunan, P.R. China
| | - Wanchun Wang
- Department of Orthopaedics, Hunan Key Laboratory of Tumor Models and Individualized Medicine, The Second Xiangya Hospital, Central South University, Changsha, Hunan, P.R. China
| | - Chao Tu
- Department of Orthopaedics, Hunan Key Laboratory of Tumor Models and Individualized Medicine, The Second Xiangya Hospital, Central South University, Changsha, Hunan, P.R. China.
| | - Zhihong Li
- Department of Orthopaedics, Hunan Key Laboratory of Tumor Models and Individualized Medicine, The Second Xiangya Hospital, Central South University, Changsha, Hunan, P.R. China.
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Abstract
AIMS Joint registries typically use revision of an implant as an endpoint and report survival rates after a defined number of years. However, reporting lifetime risk of revision may be more meaningful, especially in younger patients. We aimed to assess lifetime risk of revision for patients in defined age groups at the time of primary surgery. METHODS The New Zealand Joint Registry (NZJR) was used to obtain rates and causes of revision for all primary total hip arthroplasties (THAs) performed between January 1999 and December 2016. The NZJR is linked to the New Zealand Registry of Births, Deaths and Marriages to obtain complete and accurate data. Patients were stratified by age at primary surgery, and lifetime risk of revision calculated according to age, sex, and American Society of Anesthesiologists (ASA) classification. The most common causes for revision were also analyzed for each age group. RESULTS The overall, ten-year implant survival rate was 93.6% (95% confidence interval (CI) 93.4% to 93.8%). It was lowest in the youngest age group (46 to 50 years), rising sequentially with increasing age to 97.5% in the oldest group (90 to 95 years). Lifetime risk of revision surgery was 27.6% (95% CI 27.3% to 27.8%) in those aged 46 to 50 years, decreasing with age to 1.1% (95% CI 0.0% to 5.8%) in those aged 90 to 95 years at the time of primary surgery. Higher ASA grades were associated with an increased lifetime risk of revision across all ages. The commonest causes for revision THA were aseptic loosening, infection, periprosthetic fracture, and dislocation. CONCLUSION When counselling patients preoperatively, the lifetime risk of revision may be a more meaningful and useful measure of longer-term outcome than implant survival at defined time periods. This study highlights the considerably increased likelihood of subsequent revision surgery in younger age groups. Cite this article: Bone Joint J 2021;103-B(3):479-485.
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Affiliation(s)
- Mary Nugent
- Department of Orthopaedic Surgery, Christchurch Public Hospital, Christchurch, New Zealand
| | - Simon W Young
- Department of Orthopaedic Surgery, North Shore Hospital, Auckland, New Zealand
| | | | - Gary J Hooper
- Department of Orthopaedic Surgery and Musculoskeletal Medicine, University of Otago Christchurch, Christchurch, New Zealand
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16
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Venäläinen MS, Panula VJ, Klén R, Haapakoski JJ, Eskelinen AP, Manninen MJ, Kettunen JS, Puhto AP, Vasara AI, Mäkelä KT, Elo LL. Preoperative Risk Prediction Models for Short-Term Revision and Death After Total Hip Arthroplasty: Data from the Finnish Arthroplasty Register. JB JS Open Access 2021; 6:JBJSOA-D-20-00091. [PMID: 33748644 PMCID: PMC7963508 DOI: 10.2106/jbjs.oa.20.00091] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
Because of the increasing number of total hip arthroplasties (THAs), even a small proportion of complications after the operation can lead to substantial individual difficulties and health-care costs. The aim of this study was to develop simple-to-use risk prediction models to assess the risk of the most common reasons for implant failure to facilitate clinical decision-making and to ensure long-term survival of primary THAs.
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Affiliation(s)
- Mikko S Venäläinen
- Turku Bioscience Centre, University of Turku and Åbo Akademi University, Turku, Finland
| | - Valtteri J Panula
- Department of Orthopaedics and Traumatology, Turku University Hospital and University of Turku, Turku, Finland
| | - Riku Klén
- Turku Bioscience Centre, University of Turku and Åbo Akademi University, Turku, Finland
| | | | | | | | - Jukka S Kettunen
- Department of Orthopaedics and Traumatology, Kuopio University Hospital, Kuopio, Finland
| | - Ari-Pekka Puhto
- Division of Operative Care, Department of Orthopaedic and Trauma Surgery, Oulu University Hospital, Oulu, Finland
| | | | - Keijo T Mäkelä
- Department of Orthopaedics and Traumatology, Turku University Hospital and University of Turku, Turku, Finland
| | - Laura L Elo
- Turku Bioscience Centre, University of Turku and Åbo Akademi University, Turku, Finland.,Helsinki University Hospital, Helsinki, Finland
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17
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Heo SM, Harris I, Naylor J, Lewin AM. Complications to 6 months following total hip or knee arthroplasty: observations from an Australian clinical outcomes registry. BMC Musculoskelet Disord 2020; 21:602. [PMID: 32912197 PMCID: PMC7488141 DOI: 10.1186/s12891-020-03612-8] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/06/2020] [Accepted: 08/26/2020] [Indexed: 12/11/2022] Open
Abstract
Background Total hip and total knee arthroplasty (THA/TKA) are increasing in incidence annually. While these procedures are effective in improving pain and function, there is a risk of complications. Methods Using data from an arthroplasty registry, we described complication rates including reasons for reoperation and readmission from the acute period to six months following THA and TKA in an Australian context. Data collection at 6 months was conducted via telephone interview, and included patient-reported complications such as joint stiffness, swelling and paraesthesia. We used logistic regression to identify risk factors for complications. Results In the 8444 procedures included for analysis, major complications were reported by 9.5 and 14.4% of THA and TKA patients, respectively, whilst minor complications were reported by 34.0 and 46.6% of THA and TKA patients, respectively. Overall complications rates were 39.7 and 53.6% for THA and TKA patients, respectively. In THA patients, factors associated with increased risk for complications included increased BMI, previous THA and bilateral surgery, whereas in TKA patient factors were heart disease, neurological disease, and pre-operative back pain and arthritis in a separate joint. Female gender and previous TKA were identified as protective factors for minor complications in TKA patients. Conclusion We found moderate rates of major and high rates of minor postoperative complications following THA and TKA in Australia and have identified several patient factors associated with these complications. Efforts should be focused on identifying patients with higher risk and optimising pre- and post-operative care to reduce the rates of these complications.
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Affiliation(s)
- Sung Mu Heo
- Hornsby-Kuringai Hospital, Palmerston Road, Hornsby, Sydney, NSW, 2077, Australia.
| | - Ian Harris
- Whitlam Orthopaedic Research Centre, Ingham Institute for Applied Medical Research, South Western Sydney Clinical School, UNSW, Sydney, Australia
| | - Justine Naylor
- Whitlam Orthopaedic Research Centre, Ingham Institute for Applied Medical Research, South Western Sydney Clinical School, UNSW, Sydney, Australia
| | - Adriane M Lewin
- Whitlam Orthopaedic Research Centre, Ingham Institute for Applied Medical Research, South Western Sydney Clinical School, UNSW, Sydney, Australia
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18
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Do Double-fan Surgical Helmet Systems Result in Less Gown-particle Contamination Than Single-fan Designs? Clin Orthop Relat Res 2020; 478:1359-1365. [PMID: 31977431 PMCID: PMC7319402 DOI: 10.1097/corr.0000000000001121] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND Surgical helmet systems commonly are stand-alone systems with a single fan blowing air into the suit, creating positive pressure that blows particles out through areas of low resistance, possibly contaminating surgical attire and the surgical field. Two-fan systems were developed more recently to release spent air, also theoretically lowering pressure in the suit and decreasing the aforementioned risk of particle contamination. To our knowledge no study to date has measured the potential differences in gown particle contamination to support this hypothesis. QUESTIONS/PURPOSES We compared a commonly used single-fan system versus a two-fan system and asked: (1) Which fan system results in less gown particle contamination? (2) Are there differences between the systems in the location of contamination? METHODS Using an existing experimental study model, two surgeons performed five 30-minute TKA simulations comparing a single-fan to a double-fan helmet system after applying fluorescent powder to the hands, axillae, and chest. Both are two-piece hood and gown systems. The single-fan sits on top of the helmet blowing air into the suit; the double-fan system has a second fan positioned at the rear blowing out spent air. Ultraviolet light-enhanced photographs were subsequently obtained of the flexor and extensor surfaces of the arms, axillary areas, and front and back of the chest. We chose these locations because they all contain either a seam or an overlap between gown and hood or gloves through which particles can escape. The images were scored for contamination on a scale of 1 (zero specks) to 4 (> 100 specks) by three independent observers. Interobserver correlation was assessed through Spearman's test yielding 0.91 (95% CI 0.86 to 0.94; p < 0.0001), 0.81 (95% CI 0.73 to 0.87; p < 0.0001) and 0.87 (95% CI 0.80 to 0.91; p < 0.0001) between observers 1 and 2, observers 1 and 3, and observers 2 and 3, rendering the used scale reliable. Results of the observers were averaged and compared using the Mann-Whitney U test. RESULTS There was no difference in overall gown particle contamination between the systems (overall single-fan median contamination score 2.5 of 4 [interquartile range Q1-Q3 0-3.42] versus double fan 1 out of 4 (Q1-Q3 0-3); p = 0.082), but all tests showed there was contamination at the gown-glove interface. In general, there were few differences between the two systems in terms of location of the contamination; however, when comparing only the axillary regions, we found that the single-fan group (median score 3.67 [Q1-Q3 3-4]) showed more contamination than the double-fan group (2.33 [Q1-Q3 0-3.08]); p = 0.01. CONCLUSION We found no difference in gown particle contamination between a single-fan and a double-fan helmet design. However, we note that contamination was present in all tests with both systems, so surgeons should not assume that these systems provide a contamination-free environment. CLINICAL RELEVANCE When using such helmets, the surgeon should not place items close to the axillary region because the seam of the gown may have low resistance to particle contamination. Gown designs could be improved by creating better seals, especially at the arm-body seam.
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Effect of Patient Body Mass Index, Recommendation for Weight Modification, and Nonmodifiable Factors on Patient Satisfaction. J Am Acad Orthop Surg 2020; 28:e448-e455. [PMID: 31498160 DOI: 10.5435/jaaos-d-19-00330] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
Abstract
INTRODUCTION Patient satisfaction serves an increasingly important role in health care. Multiple nonmodifiable patient factors have been found to influence patient satisfaction. To the best of our knowledge, however, no study has investigated the influence of body mass index (BMI) on satisfaction scores. The objective of this study was to evaluate whether BMI and provider recommendation for patient weight modification were associated with patient satisfaction. METHODS We reviewed Press Ganey patient satisfaction survey scores from 3,044 clinical encounters in an academic orthopaedic center between November 2010 and May 2017. Multiple patient factors, BMI, and recommendation for weight loss, or requirement of weight loss, before surgery were recorded. Patient satisfaction was operationalized as a binary outcome of completely satisfied or not completely satisfied, and multiple logistic regression was used to estimate the odds of being completely satisfied from the subset of potential predictors. RESULTS White patients (odds ratio [OR] = 1.340, 95% confidence interval [CI]: 1.113 to 1.584, P = 0.0007) and Medicare-insured patients (OR = 1.260, 95% CI: 1.044 to 1.521, P = 0.0164) were more likely to be completely satisfied, whereas patients being seen by a provider for the first time were less likely to be completely satisfied (OR = 0.728, 95% CI: 0.626 to 0.847, P < 0.0001). BMI, recommendation for weight loss, and requirement of weight modification before surgery were not found to be associated with patient satisfaction. DISCUSSION Neither patient BMI nor provider recommendation for weight loss, or as a requirement for surgery, was associated with patient satisfaction. Race, insurance status, and previous visits with the care provider were identified as nonmodifiable patient factors that influence patient satisfaction. LEVEL OF EVIDENCE Level III.
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20
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Zhong J, Wang B, Chen Y, Li H, Lin N, Xu X, Lu H. Relationship between body mass index and the risk of periprosthetic joint infection after primary total hip arthroplasty and total knee arthroplasty. ANNALS OF TRANSLATIONAL MEDICINE 2020; 8:464. [PMID: 32395508 PMCID: PMC7210163 DOI: 10.21037/atm.2020.03.112] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Background Periprosthetic joint infection (PJI) is a disastrous complication after total hip arthroplasty (THA) and total knee arthroplasty (TKA). The relationship between body mass index (BMI) and the incidence of PJI remains controversial. To better understand the impact of increasing BMI on PJI, we conducted this study to investigate the dose-response relationship between BMI and the risk of PJI after primary THA or TKA. Methods A systematic search was conducted in PubMed, Embase, and Cochrane Library databases from inception to August 17, 2019. After study selection and data extraction, a dose-response meta-analysis was performed to investigate the relationship between BMI and PJI. Adjusted relative risks (RRs) with 95% confidence intervals (CIs) were pooled using fixed-effects or random-effects models. Results Eleven studies comprising 505,303 arthroplasties were included. The dose-response analysis showed a significant non-linear relationship between BMI and the risk of PJI (Pnon-linearity <0.001). Patients following THA (RR, 1.489; 95% CI, 1.343–1.651; P<0.001) were more likely to suffer from PJI than patients following TKA. Furthermore, American Society of Anesthesiologists (ASA) score ≥3 (RR, 2.287; 95% CI, 1.650–3.170; P<0.001), lung disease (RR, 1.484; 95% CI, 1.208–1.823; P<0.001) and diabetes (RR, 1.695; 95% CI, 1.071–2.685; P=0.024) were identified as risk factors for PJI, but male (RR, 1.649; 95% CI, 0.987–2.755; P=0.056) and hypertension (RR, 0.980; 95% CI, 0.502–1.916; P=0.954) were not recognized as risk factors for PJI. Conclusions The J-shaped non-linear relationship demonstrated that increased BMI was associated with an increased risk for PJI after primary THA or TKA. Patients following THA were more likely to suffer from PJI than patients following TKA. Also, patients with ASA score ≥3, lung disease and diabetes have a higher risk of PJI. Gender and hypertension did not influence the incidence of PJI.
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Affiliation(s)
- Junlong Zhong
- Department of Orthopaedics, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai 519000, China
| | - Bin Wang
- Department of Orthopaedics, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai 519000, China
| | - Yufeng Chen
- Department of Orthopaedics, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai 519000, China
| | - Huizi Li
- Department of Orthopaedics, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai 519000, China
| | - Nan Lin
- Department of Orthopaedics, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai 519000, China
| | - Xianghe Xu
- Department of Orthopaedics, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai 519000, China
| | - Huading Lu
- Department of Orthopaedics, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai 519000, China
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21
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The Impact of Patient-Reported Penicillin Allergy on Risk for Surgical Site Infection in Total Joint Arthroplasty. J Am Acad Orthop Surg 2019; 27:854-860. [PMID: 30829986 DOI: 10.5435/jaaos-d-18-00709] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
Abstract
BACKGROUND Penicillin (PCN) allergy is reported in 10% to 20% of the population; studies show that only 1% to 3% of patients have a true allergy. Most patients reporting a PCN allergy receive second-line antibiotic prophylaxis preoperatively, which raises concerns about antimicrobial efficacy. Studies also suggest that second-line antibiotics may increase the rate of surgical site infection (SSI). In this study we aim to analyze the effect of PCN allergy on antibiotic type prescribed and SSI in our total joint arthroplasty population. METHODS A retrospective review of 4,903 primary total hip and total knee arthroplasty performed from January 2015 to June 2017 in a single institution. A detailed chart review was performed to identify reported reactions and antibiotic prescribed. RESULTS Seven hundred ninety-six patients (16.2%) reported a PCN allergy; the reactions were classified into three tiers. Six hundred fifteen patients (12.5%) reported an IgE-mediated allergy, hypersensitivity, or a possible allergy; 89 (1.8%) reported an adverse effect; and 92 (1.9%) had an unknown reaction. Patients reporting a PCN allergy were less likely to receive cefazolin (94.9 versus 6.9%; P < 0.001) and more likely to receive clindamycin (1.1 versus 80.7%; P < 0.001) or vancomycin (4.0 versus 12.4%; P < 0.001). There was no difference in infection rate by reported PCN allergy (0.6 versus 0.4%; P = 0.473) or antibiotic prescribed (0.5 versus 0.6%; P = 0.4817). CONCLUSION No patient with a PCN allergy and given cefazolin experienced a reaction; based on reported reactions, most patients with a PCN allergy can safely receive first-line antibiotic therapy. In this population, PCN allergy and second-line antibiotic therapy did not influence the rate of SSI.
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22
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Löwik CAM, Zijlstra WP, Knobben BAS, Ploegmakers JJW, Dijkstra B, de Vries AJ, Kampinga GA, Mithoe G, Al Moujahid A, Jutte PC, Wouthuyzen-Bakker M. Obese patients have higher rates of polymicrobial and Gram-negative early periprosthetic joint infections of the hip than non-obese patients. PLoS One 2019; 14:e0215035. [PMID: 30958847 PMCID: PMC6453483 DOI: 10.1371/journal.pone.0215035] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2019] [Accepted: 03/25/2019] [Indexed: 02/02/2023] Open
Abstract
Background Obese patients are more likely to develop periprosthetic joint infection (PJI) after primary total joint arthroplasty. This study compared the clinical and microbiological characteristics of non-obese, obese and severely obese patients with early PJI, in order to ultimately optimize antibiotic prophylaxis and other prevention measures for this specific patient category. Methods We retrospectively evaluated patients with early PJI of the hip and knee treated with debridement, antibiotics and implant retention (DAIR) between 2006 and 2016 in three Dutch hospitals. Only patients with primary arthroplasties indicated for osteoarthritis were included. Early PJI was defined as an infection that developed within 90 days after index surgery. Obesity was defined as a BMI ≥30kg/m2 and severe obesity as a BMI ≥35kg/m2. Results A total of 237 patients were analyzed, including 64 obese patients (27.0%) and 62 severely obese patients (26.2%). Compared with non-obese patients, obese patients had higher rates of polymicrobial infections (60.3% vs 33.3%, p<0.001) with more often involvement of Enterococcus species (27.0% vs 11.7%, p = 0.003). Moreover, severely obese patients had more Gram-negative infections, especially with Proteus species (12.9% vs 2.3%, p = 0.001). These results were only found in periprosthetic hip infections, comprising Gram-negative PJIs in 34.2% of severely obese patients compared with 24.7% in obese patients and 12.7% in non-obese patients (p = 0.018). Conclusions Our results demonstrate that obese patients with early periprosthetic hip infections have higher rates of polymicrobial infections with enterococci and Gram-negative rods, which stresses the importance of improving preventive strategies in this specific patient category, by adjusting antibiotic prophylaxis regimens, improving disinfection strategies and optimizing postoperative wound care.
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Affiliation(s)
- Claudia A. M. Löwik
- Department of Orthopaedic Surgery, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
- * E-mail:
| | - Wierd P. Zijlstra
- Department of Orthopaedic Surgery, Medical Center Leeuwarden, Leeuwarden, The Netherlands
| | - Bas A. S. Knobben
- Department of Orthopaedic Surgery, Martini Hospital, Groningen, The Netherlands
| | - Joris J. W. Ploegmakers
- Department of Orthopaedic Surgery, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Baukje Dijkstra
- Department of Orthopaedic Surgery, Medical Center Leeuwarden, Leeuwarden, The Netherlands
| | - Astrid J. de Vries
- Department of Orthopaedic Surgery, Martini Hospital, Groningen, The Netherlands
| | - Greetje A. Kampinga
- Department of Medical Microbiology and Infection Prevention, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Glen Mithoe
- Department of Medical Microbiology, Certe Medical Diagnostics and Advice, Groningen, the Netherlands
| | - Aziz Al Moujahid
- Center for Infectious Diseases Friesland, Izore, Leeuwarden, the Netherlands
| | - Paul C. Jutte
- Department of Orthopaedic Surgery, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Marjan Wouthuyzen-Bakker
- Department of Medical Microbiology and Infection Prevention, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
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23
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Stone AH, MacDonald JH, Joshi MS, King PJ. Differences in Perioperative Outcomes and Complications Between African American and White Patients After Total Joint Arthroplasty. J Arthroplasty 2019; 34:656-662. [PMID: 30674420 DOI: 10.1016/j.arth.2018.12.032] [Citation(s) in RCA: 64] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/18/2018] [Revised: 12/17/2018] [Accepted: 12/26/2018] [Indexed: 02/01/2023] Open
Abstract
BACKGROUND Racial disparities in healthcare utilization and outcomes have been reported and have wide-reaching implications for individual patient and healthcare system; as providers we bear an ethical burden to address this disparity and provide culturally competent care. This study will examine the influence of race on length of stay, discharge disposition, and complications requiring reoperation following total joint arthroplasty (TJA). METHODS Single institution retrospective analysis of a consecutive series of 7208 primary TJA procedures performed between July 2013 and June 2017 was conducted. Chi-squared and t-tests were used to quantify differences between the groups and multiple logistic regression was used to identify race as an independent risk factor. RESULTS In total, 6182 (84.3%) white and 1026 (14.0%) African American (AA) patients were included. AA patients were younger (63.62 vs 66.84 years, P < .001), more likely female (68.8% vs 57.0%, P < .001), had a longer length of stay (2.19 vs 2.00 days, P < .001), more likely to experience septic complications (1.3% vs 0.5%, P = .002) and manipulation under anesthesia (3.9% vs 1.8%, P < .001), and less likely to discharge home (67.1% vs 81.1%, P < .001). Multiple logistic regression showed that AA patients were more likely to discharge to a facility (adjusted odds ratio 2.63, 95% confidence interval 2.19-3.16, P < .001) and experience a manipulation under anesthesia (adjusted odds ratio 1.90, 95% confidence interval 1.26-2.85, P = .002). CONCLUSION AA patients undergoing TJA were younger with longer length of stay and a higher rate of nonhome discharge; AA race was identified as an independent risk factor. Further study is required to understand the differences identified in this study. Targeted interventions should be developed to attempt to eliminate the disparity.
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Affiliation(s)
- Andrea H Stone
- Department of Surgical Research, Anne Arundel Medical Center, Annapolis, MD
| | - James H MacDonald
- Center for Joint Replacement, Anne Arundel Medical Center, Annapolis, MD
| | | | - Paul J King
- Center for Joint Replacement, Anne Arundel Medical Center, Annapolis, MD
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24
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Balato G, Barbaric K, Bićanić G, Bini S, Chen J, Crnogaca K, Kenanidis E, Giori N, Goel R, Hirschmann M, Marcacci M, Amat Mateu C, Nam D, Shao H, Shen B, Tarabichi M, Tarabichi S, Tsiridis E, Tzavellas AN. Hip and Knee Section, Prevention, Surgical Technique: Proceedings of International Consensus on Orthopedic Infections. J Arthroplasty 2019; 34:S301-S307. [PMID: 30348555 DOI: 10.1016/j.arth.2018.09.015] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
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25
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General Assembly, Prevention, Operating Room - Surgical Attire: Proceedings of International Consensus on Orthopedic Infections. J Arthroplasty 2019; 34:S117-S125. [PMID: 30348561 DOI: 10.1016/j.arth.2018.09.061] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
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26
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Abouljoud MM, Alvand A, Boscainos P, Chen AF, Garcia GA, Gehrke T, Granger J, Kheir M, Kinov P, Malo M, Manrique J, Meek D, Meheux C, Middleton R, Montilla F, Reed M, Reisener MJ, van der Rijt A, Rossmann M, Spangehl M, Stocks G, Young P, Young S, Zahar A, Zhang X. Hip and Knee Section, Prevention, Operating Room Environment: Proceedings of International Consensus on Orthopedic Infections. J Arthroplasty 2019; 34:S293-S300. [PMID: 30343970 DOI: 10.1016/j.arth.2018.09.014] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
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27
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Abstract
BACKGROUND Surgical site infection is associated with a substantial healthcare burden and remains one of the most challenging complications to treat. Airborne particles carrying contaminating micro-organisms are responsible for the majority of these infections. METHODS Various operating theater ventilatory systems have been developed to prevent direct airborne bacterial inoculation of the surgical wound. Laminar air flow uses positive pressure air currents through filtration units to direct air streams away from the operative field in order to create an ultraclean zone around the operative site. DISCUSSION Early studies reported lower infection rates with laminar air flow and therefore it became the accepted standard for implant-related surgery. However, more recent evidence has questioned its clinical importance. The purpose of this article is to review contemporary laminar air flow handling systems and the current evidence behind their use.
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Affiliation(s)
- Sameer Jain
- 1 Northumbria Healthcare NHS Foundation Trust, Wansbeck Hospital, Northumberland, United Kingdom
| | - Mike Reed
- 1 Northumbria Healthcare NHS Foundation Trust, Wansbeck Hospital, Northumberland, United Kingdom.,2 Department of Health Sciences, University of York, Seebohm, Heslington, York, United Kingdom
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28
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Tu C, He J, Wang W, Li Z. Revision for PJI after total hip replacement: more exploration is needed. THE LANCET. INFECTIOUS DISEASES 2018; 18:1182. [PMID: 30507403 DOI: 10.1016/s1473-3099(18)30570-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/12/2018] [Accepted: 09/10/2018] [Indexed: 12/30/2022]
Affiliation(s)
- Chao Tu
- Department of Orthopedics, The Second Xiangya Hospital, Central South University, Changsha 410011, China
| | - Jieyu He
- Department of Geriatrics, The Second Xiangya Hospital, Central South University, Changsha 410011, China
| | - Wanchun Wang
- Department of Orthopedics, The Second Xiangya Hospital, Central South University, Changsha 410011, China
| | - Zhihong Li
- Department of Orthopedics, The Second Xiangya Hospital, Central South University, Changsha 410011, China.
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29
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Optimising detection and prevention of prosthetic joint infections. BMJ Qual Saf 2018; 28:349-351. [DOI: 10.1136/bmjqs-2018-009070] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/07/2018] [Indexed: 12/23/2022]
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30
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Blevins K, Aalirezaie A, Shohat N, Parvizi J. Malnutrition and the Development of Periprosthetic Joint Infection in Patients Undergoing Primary Elective Total Joint Arthroplasty. J Arthroplasty 2018; 33:2971-2975. [PMID: 29759856 DOI: 10.1016/j.arth.2018.04.027] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/20/2018] [Revised: 04/11/2018] [Accepted: 04/12/2018] [Indexed: 02/01/2023] Open
Abstract
BACKGROUND Although an abundance of literature exists linking malnutrition with infectious complications in surgical patients, there is little specifically examining the link between malnutrition and periprosthetic joint infection (PJI). This study evaluated the relationship between abnormal nutritional parameters and development of PJI in patients undergoing primary total joint arthroplasty (TJA). METHODS We retrospectively reviewed TJA patients from 2000 to 2016 with preoperative nutritional screening at a single institution. Any development of PJI at 2 years was assessed as the primary outcome. The Musculoskeletal Infection society criteria were used to define PJI. The association between the aforementioned nutritional markers and PJI was evaluated in a bivariate analysis followed by multivariate logistic regression. Performance for markers was assessed using receiver operator characteristic curves. Sensitivity and specificity were also compared. RESULTS Multivariate analysis demonstrated that low albumin (adjusted odds ratio [OR], 4.69; 95% confidence interval [CI], 2.428-9.085; P < .001) and low hemoglobin (adjusted OR, 2.718; 95% CI, 1.100-2.718; P = .018) were significantly associated with PJI. Albumin had the highest specificity and (95% CI, 97.8%-98.4%) and positive predictive value compared to all other markers. Platelet-to-white blood cell ratio had the highest sensitivity (95% CI, 29.5%-40.3%). The area under the curve was greatest for albumin (0.61; 95% CI, 0.55-0.67) followed by hemoglobin (0.57; 95% CI, 0.51-0.63), platelets (0.56; 95% CI, 0.50-0.62), and platelet-to-white blood cell ratio (0.54; 95% CI, 0.49-0.60). CONCLUSION The most valuable predictor of PJI following primary TJA, among nutritional parameters examined, was preoperative albumin with a very high specificity and positive predictive value.
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Affiliation(s)
- Kier Blevins
- The Rothman Institute at Thomas Jefferson University, Philadelphia, Pennsylvania
| | - Arash Aalirezaie
- The Rothman Institute at Thomas Jefferson University, Philadelphia, Pennsylvania
| | - Noam Shohat
- The Rothman Institute at Thomas Jefferson University, Philadelphia, Pennsylvania; Sackler Faculty of Medicine, Tel Aviv University, Israel
| | - Javad Parvizi
- The Rothman Institute at Thomas Jefferson University, Philadelphia, Pennsylvania
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31
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Liu J, Yu M, Zeng G, Cao J, Wang Y, Ding T, Yang X, Sun K, Parvizi J, Tian S. Dual antibacterial behavior of a curcumin–upconversion photodynamic nanosystem for efficient eradication of drug-resistant bacteria in a deep joint infection. J Mater Chem B 2018; 6:7854-7861. [PMID: 32255030 DOI: 10.1039/c8tb02493f] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The curcumin–upconversion photodynamic nanosystem exhibits dual antibacterial behavior for MRSA-induced periprosthetic joint infection under NIR irradiation.
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Affiliation(s)
| | - Meng Yu
- Department of Operating Room
- The Affiliated Hospital of Qingdao University
- Qingdao 266071
- China
| | - Guobo Zeng
- Department of Orthopaedics
- The People's Hospital of Xixiu District
- Anshun
- China
| | - Jie Cao
- Department of Pharmaceutics
- School of Pharmacy
- Qingdao University
- Qingdao
- China
| | - Yuanhe Wang
- Department of Orthopaedics
- The Affiliated Hospital of Qingdao University
- Qingdao 266071
- China
| | - Tao Ding
- Medical College
- Qingdao University
- Qingdao
- China
| | - Xu Yang
- Department of Orthopaedics
- The Affiliated Hospital of Qingdao University
- Qingdao 266071
- China
| | - Kang Sun
- Department of Orthopaedics
- The Affiliated Hospital of Qingdao University
- Qingdao 266071
- China
| | - Javad Parvizi
- Department of Orthopaedics
- Rothman Institute at Thomas Jefferson University
- Philadelphia
- USA
| | - Shaoqi Tian
- Department of Orthopaedics
- The Affiliated Hospital of Qingdao University
- Qingdao 266071
- China
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