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  1. Article ; Online: CORR Insights®: Do the Revision Rates of Arthroplasty Surgeons Correlate With Postoperative Patient-reported Outcome Measure Scores? A Study From the Australian Orthopaedic Association National Joint Replacement Registry.

    Ong, Kevin L

    Clinical orthopaedics and related research

    2023  

    Language English
    Publishing date 2023-07-28
    Publishing country United States
    Document type Journal Article
    ZDB-ID 80301-7
    ISSN 1528-1132 ; 0009-921X
    ISSN (online) 1528-1132
    ISSN 0009-921X
    DOI 10.1097/CORR.0000000000002796
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Book: Orthopaedic biomaterials in research and practice

    Ong, Kevin L. / Lovald, Scott / Black, Jonathan

    2014  

    Author's details Kevin L Ong ; Scott Lovald ; Jonathan Black
    Language English
    Size XXV, 438 S., [6] Bl. : Ill., graph. Darst.
    Edition 2. ed.
    Publisher CRC Press
    Publishing place Boca Raton u.a.
    Publishing country United States
    Document type Book
    HBZ-ID HT017704259
    ISBN 978-1-4665-0350-2 ; 1-4665-0350-5
    Database Catalogue ZB MED Medicine, Health

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  3. Article: First Report of a '

    Rios, Danielle / Ueckert, Jake / Ong, Kevin L / Barillas, Jose R / Costanzo, Stefano

    Plant disease

    2024  

    Abstract: Silver bluestem [ ...

    Abstract Silver bluestem [
    Language English
    Publishing date 2024-04-30
    Publishing country United States
    Document type Journal Article
    ZDB-ID 754182-x
    ISSN 0191-2917
    ISSN 0191-2917
    DOI 10.1094/PDIS-03-24-0524-PDN
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Can't Catch a Break: Try Using Anti-Osteoporotic Therapy: Commentary on an article by Harpreet S. Bawa, MD, et al.: "Anti-Osteoporotic Therapy After Fragility Fracture Lowers Rate of Subsequent Fracture: Analysis of a Large Population Sample".

    Ong, Kevin L

    The Journal of bone and joint surgery. American volume

    2015  Volume 97, Issue 19, Page(s) e65

    MeSH term(s) Bone Density Conservation Agents/administration & dosage ; Female ; Fractures, Spontaneous/prevention & control ; Humans ; Male ; Osteoporosis/drug therapy
    Chemical Substances Bone Density Conservation Agents
    Language English
    Publishing date 2015-10-07
    Publishing country United States
    Document type Comment ; Journal Article
    ZDB-ID 220625-0
    ISSN 1535-1386 ; 0021-9355
    ISSN (online) 1535-1386
    ISSN 0021-9355
    DOI 10.2106/JBJS.O.00692
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Complication rates following reverse and anatomic shoulder replacement in treatment of glenohumeral arthritis: a 10-year Medicare review study.

    Givens, Justin M / Malkani, Arthur L / Ong, Kevin L / Watson, Heather N / Harreld, Kevin L

    Journal of shoulder and elbow surgery

    2023  Volume 33, Issue 2, Page(s) 273–280

    Abstract: Background: We sought to compare the complication rates after anatomic total shoulder arthroplasty (aTSA) and reverse shoulder arthroplasty (RSA) for primary glenohumeral arthritis in a Medicare population.: Methods: Patients who underwent a shoulder ...

    Abstract Background: We sought to compare the complication rates after anatomic total shoulder arthroplasty (aTSA) and reverse shoulder arthroplasty (RSA) for primary glenohumeral arthritis in a Medicare population.
    Methods: Patients who underwent a shoulder arthroplasty were identified from the 5% subset of Medicare parts A/B between 2009 and 2019. Patients with less than 1-year follow-up were excluded. A total of 8846 patients with a diagnosis of glenohumeral arthritis were then subdivided into those who received aTSA (5935 patients) and RSA (2911 patients). A multivariate Cox regression analysis was then performed comparing complication rates at 3 months, 6 months, 1 year, 2 years, and 5 years.
    Results: Statistically significant increased rates of instability (hazard ratio [HR] = 1.46), fracture of the scapula (HR = 7.76), infections (HR = 1.45), early revision (HR = 1.79), and all complications (HR = 1.32) were seen in the RSA group. There was no significant difference in revision rate at 5 years between the 2 groups. There was no difference in patient characteristics or comorbid conditions (smoking status, diabetes, Charlson score, etc.) or hospital characteristics (location, teaching status, public vs. private, etc.) between the 2 groups.
    Conclusion: An increased rate of early complications was observed with the use of RSA compared with aTSA for the treatment of primary glenohumeral arthritis, including instability, scapula fracture, infection, and all cause complication. No difference in revision rate between RSA and aTSA at 5 years was observed.
    MeSH term(s) Aged ; Humans ; Arthritis/surgery ; Arthroplasty, Replacement, Shoulder/adverse effects ; Arthroplasty, Replacement, Shoulder/methods ; Medicare ; Range of Motion, Articular ; Shoulder Fractures/epidemiology ; Treatment Outcome ; United States/epidemiology ; Postoperative Complications/epidemiology
    Language English
    Publishing date 2023-07-19
    Publishing country United States
    Document type Journal Article ; Review
    ZDB-ID 1170782-3
    ISSN 1532-6500 ; 1058-2746
    ISSN (online) 1532-6500
    ISSN 1058-2746
    DOI 10.1016/j.jse.2023.06.017
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article: Association Between Bio-Fermentation Derived Hyaluronic Acid and Healthcare Costs Following Knee Arthroplasty.

    Nicholls, Mathew / Niazi, Faizan / Nelson, Winnie W / Lau, Edmund / Kurtz, Steven M / Ong, Kevin L

    ClinicoEconomics and outcomes research : CEOR

    2022  Volume 14, Page(s) 575–585

    Abstract: Background: Limiting access to intra-articular knee injections, including hyaluronic acid (HA), has been advocated as a cost-containment measure in the treatment of knee osteoarthritis. The association between presurgical injections and post-surgical ... ...

    Abstract Background: Limiting access to intra-articular knee injections, including hyaluronic acid (HA), has been advocated as a cost-containment measure in the treatment of knee osteoarthritis. The association between presurgical injections and post-surgical complications such as early periprosthetic joint infection and revision remained to be investigated. This study evaluated pre- and post-surgical costs and rates of post-surgical complications in knee arthroplasty (KA) patients with or without prior HA use.
    Methods: Commercial and Medicare Supplemental Claims Data (IBM MarketScan Research Databases) from January 1, 2012 to December 31, 2018 were used to identify unilateral KA patients. Those who completed a course of bio-fermentation derived HA (Bio-HA) as the first-line HA therapy comprised of the test group (n = 4091), while the control group did not use HA prior to KA (n = 118,659). Using multivariable regression with propensity score (PS) weighting, overall healthcare costs, readmission rates, and revision rates were assessed at six months following KA.
    Results: Healthcare costs following KA were significantly lower for the Bio-HA group ($10,021 ± $22,796) than No HA group ($12,724 ± $32,966; PS p < 0.001). Bio-HA patients had lower readmission rates (8.9% vs 14.0%; PS p < 0.001) and inpatient costs per readmitted patient ($43,846 ± $50,648 vs $50,533 ± $66,150; PS p = 0.005). There were no differences in revision rate for any reason (Bio-HA: 0.78% vs No HA: 0.67%; PS p = 0.361) and with PJI (Bio-HA: 0.42% vs No HA: 0.33%; PS p = 0.192). Costs in the six months up to and including the KA were similar for both groups (Bio-HA: $49,759 ± $40,363 vs No HA: $50,532 ± $43,183; PS p = 0.293).
    Conclusion: Bio-HA use prior to knee arthroplasty did not appear to increase overall healthcare costs in the six months before and after surgery. Allowing access to HA injections provides a non-surgical therapeutic option without increasing cost or risk of post-surgical complications.
    Language English
    Publishing date 2022-08-30
    Publishing country New Zealand
    Document type Journal Article
    ZDB-ID 2520698-9
    ISSN 1178-6981
    ISSN 1178-6981
    DOI 10.2147/CEOR.S347512
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article: Robotic-Arm Assisted Total Knee Arthroplasty: Cost Savings Demonstrated at One Year.

    Ong, Kevin L / Coppolecchia, Andréa / Chen, Zhongming / Watson, Heather N / Jacofsky, David / Mont, Michael A

    ClinicoEconomics and outcomes research : CEOR

    2022  Volume 14, Page(s) 309–318

    Abstract: Purpose: Robotic-arm assisted total knee arthroplasty (RATKA) has the potential to enhance radiographic, clinical, and patient-reported outcomes. The purpose of this study was to compare resource utilization, episode-of-care (EOC) costs, readmissions, ... ...

    Abstract Purpose: Robotic-arm assisted total knee arthroplasty (RATKA) has the potential to enhance radiographic, clinical, and patient-reported outcomes. The purpose of this study was to compare resource utilization, episode-of-care (EOC) costs, readmissions, and complications of robotic-arm assisted total knee arthroplasty (RATKA) and manual TKA (MTKA).
    Methods: TKA procedures were identified from a private payer claims database. RATKA procedures required both a robotic arm-assisted procedure code and a 60-day pre-operative computed tomography scan. Propensity score matching (1:5 RATKA to MTKA) was performed, based on various patient characteristics and comorbidities. After matching, 4452 patients (742 RATKA and 3710 MTKA) were analyzed for 90-day and one-year EOC costs, index TKA costs, lengths of stay (LOS), discharge statuses, rehabilitation utilizations, as well as 90-day and one-year readmissions- and knee-related complications.
    Results: RATKA patients had shorter LOS (mean 1.56 versus 1.91 days;
    Conclusion: RATKA was associated with lower index costs and EOC costs at both 90 days and one year. These patients had shorter LOS, were discharged home more frequently, and used less home health services. Cost savings were demonstrated for RATKA beyond the 90-day period with an increase in savings between 90-day and one-year time points. These data may be of importance to payers and providers interested in the longer-term value of RATKA.
    Language English
    Publishing date 2022-05-02
    Publishing country New Zealand
    Document type Journal Article
    ZDB-ID 2520698-9
    ISSN 1178-6981
    ISSN 1178-6981
    DOI 10.2147/CEOR.S357112
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: Incidence of Instability Following Primary Total Hip Arthroplasty Continues to Decline in the Medicare Population.

    Sirignano, Michael N / Nessler, Joseph M / Rhea, Evan B / Ong, Kevin L / Watson, Heather N / Yakkanti, Madhusudhan R / Malkani, Arthur L

    The Journal of arthroplasty

    2023  Volume 38, Issue 7S, Page(s) S89–S94.e1

    Abstract: Background: Instability has been the primary cause of failure following primary total hip arthroplasty (THA) leading to revision hip surgery. The purpose of this study was to determine if instability rates have further declined following advances in ... ...

    Abstract Background: Instability has been the primary cause of failure following primary total hip arthroplasty (THA) leading to revision hip surgery. The purpose of this study was to determine if instability rates have further declined following advances in primary THA, including dual mobility articulations, direct anterior approaches, advanced technologies, and improved knowledge of the hip-spine relationships.
    Methods: Using the 5% Medicare Part B claims data from 1999 to 2019, we identified 81,573 patients who underwent primary THA for osteoarthritis. Patients who experienced instability at 3 months, 6 months, 1 year, and 2 years were identified. Multivariate cox regression analyses evaluated the effect of patient and procedure characteristics on the risk of instability.
    Results: Instability at 1 year following primary THA declined from approximately 4% in 2000 to 2.3% in 2010 and 1.6% in 2018. The leading cause of revision surgery was infection (18.6%), followed by periprosthetic fracture (14%), mechanical loosening (11.5%), and instability (9.4%). High-risk groups for instability continue to include increased age, higher Charlson index, obesity, lumbar spine pathology, and neurocognitive disorders.
    Conclusion: Instability is no longer the leading etiology of failure following primary THA with a decline of approximately 40% over the past decade. Infection, periprosthetic fracture, mechanical loosening, and then instability are now the leading causes of failure. Multiple factors may play a role in the decline of instability, including increased use of dual mobility articulations, direct anterior approaches, improved knowledge of the hip-spine relationships, and use of advanced technologies.
    MeSH term(s) Humans ; Aged ; United States/epidemiology ; Arthroplasty, Replacement, Hip/adverse effects ; Arthroplasty, Replacement, Hip/methods ; Periprosthetic Fractures/complications ; Incidence ; Prosthesis Failure ; Medicare ; Reoperation/adverse effects ; Risk Factors ; Hip Prosthesis/adverse effects ; Retrospective Studies ; Hip Dislocation/etiology
    Language English
    Publishing date 2023-04-23
    Publishing country United States
    Document type Journal Article
    ZDB-ID 632770-9
    ISSN 1532-8406 ; 0883-5403
    ISSN (online) 1532-8406
    ISSN 0883-5403
    DOI 10.1016/j.arth.2023.04.035
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: Strikingly High Rates of Periprosthetic Joint Infection Following Revision Surgery for Periprosthetic Fractures Regardless of Surgery Timing.

    Heckmann, Nathanael D / Yang, JaeWon / Ong, Kevin L / Lau, Edmund C / Fuller, Brian C / Bohl, Daniel D / Della Valle, Craig J

    The Journal of arthroplasty

    2023  Volume 39, Issue 6, Page(s) 1557–1562.e2

    Abstract: Background: Periprosthetic fractures following total hip arthroplasty (THA) often occur in the early postoperative period. Recent data has indicated that early revisions are associated with higher complication rates, particularly periprosthetic joint ... ...

    Abstract Background: Periprosthetic fractures following total hip arthroplasty (THA) often occur in the early postoperative period. Recent data has indicated that early revisions are associated with higher complication rates, particularly periprosthetic joint infection (PJI). The purpose of this study was to assess the effect of timing of periprosthetic fracture surgery on complication rates. We hypothesized that complication rates would be significantly higher in revision surgeries performed within 3 months of the index THA.
    Methods: The Medicare Part A claims database was queried from 2010 to 2017 to identify patients who underwent surgery for a periprosthetic fracture following primary THA. Patients were divided based on time between index and revision surgeries: <1, 1 to 2, 2 to 3, 3 to 6, 6 to 9, 9 to 12, and >12 months. Complication rates were compared between groups using multivariate analyses to adjust for demographics, comorbidities, and types of revision surgery.
    Results: Of 492,340 THAs identified, 4,368 (0.9%) had a subsequent periprosthetic fracture requiring surgery: 1,725 (39.4%) at <1 month, 693 (15.9%) at 1 to 2 months, 202 (4.6%) at 2 to 3 months, 250 (5.7%) at 3 to 6 months, 134 (3.1%) at 6 to 9 months, 85 (19.4%) at 9 to12 months, and 1,279 (29.3%) at >12 months. The risk of PJI was 11.0% in the <1 month group, 11.1% at 1 to 2 months, 7.9% at 2 to 3 months, 6.8% at 3 to 6 months, 8.2% at 6 to 9 months, 9.4% at 9 to 12 months, and 8.5% at >12 months (P = .12). Adjusting for confounding factors, risk of PJI following periprosthetic fracture surgery was similar regardless of timing (P > .05). Rates of subsequent dislocation and aseptic loosening were also similar regardless of timing.
    Conclusions: The risk of PJI following repeat surgery for a periprosthetic fracture was strikingly high regardless of timing (6.8 to 11.1%), underscoring the high-risk of complications.
    MeSH term(s) Humans ; Periprosthetic Fractures/etiology ; Periprosthetic Fractures/surgery ; Periprosthetic Fractures/epidemiology ; Reoperation/statistics & numerical data ; Male ; Female ; Aged ; Arthroplasty, Replacement, Hip/adverse effects ; Arthroplasty, Replacement, Hip/instrumentation ; Prosthesis-Related Infections/etiology ; Prosthesis-Related Infections/epidemiology ; Aged, 80 and over ; Time Factors ; United States/epidemiology ; Medicare ; Retrospective Studies ; Hip Prosthesis/adverse effects ; Middle Aged
    Language English
    Publishing date 2023-12-16
    Publishing country United States
    Document type Journal Article
    ZDB-ID 632770-9
    ISSN 1532-8406 ; 0883-5403
    ISSN (online) 1532-8406
    ISSN 0883-5403
    DOI 10.1016/j.arth.2023.12.008
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Online: Corrosion Concerns? Trends in Metal-on-Polyethylene Total Hip Arthroplasty Revision Rates and Comparisons Against Ceramic-on-Polyethylene up to 10 Years of Follow-Up.

    Ong, Kevin L / Richards, Jarod A / Lau, Edmund C / Malkani, Arthur L

    The Journal of arthroplasty

    2020  Volume 35, Issue 10, Page(s) 2919–2925

    Abstract: Background: We compared the revision risk between metal-on-polyethylene (MOP) and ceramic-on-polyethylene (COP) total hip arthroplasty patients and evaluated temporal changes in short-term revision risks for MOP patients.: Methods: Primary MOP (n = ... ...

    Abstract Background: We compared the revision risk between metal-on-polyethylene (MOP) and ceramic-on-polyethylene (COP) total hip arthroplasty patients and evaluated temporal changes in short-term revision risks for MOP patients.
    Methods: Primary MOP (n = 9480) and COP (n = 3620) total hip arthroplasties were evaluated from the Medicare data set (October 2005 to December 2015) for revision risk, with up to 10 years of follow-up using multivariate analysis. Temporal change in the short-term revision risk for MOP was evaluated (log-rank and Wilcoxon tests).
    Results: Revision incidence was 3.8% for COP and 4.3% for MOP. MOP short-term revision risk did not change over time (P ≥ .844 at 1 year and .627 at 2 years). Dislocation was the most common reason for revision (MOP: 23.5%; COP: 24.8%). Overall adjusted revision risks were not different between MOP and COP up to 10 years of follow-up (P ≥ .181).
    Conclusions: Concerns with corrosion for metal heads do not appear to result in significantly elevated revision risk for MOP at up to 10 years. Corrosion does not appear as a primary reason for revision compared to other mechanisms.
    MeSH term(s) Aged ; Arthroplasty, Replacement, Hip/adverse effects ; Ceramics ; Corrosion ; Follow-Up Studies ; Hip Prosthesis/adverse effects ; Humans ; Medicare ; Polyethylene ; Prosthesis Design ; Prosthesis Failure ; Reoperation ; Risk Factors ; United States
    Chemical Substances Polyethylene (9002-88-4)
    Language English
    Publishing date 2020-05-11
    Publishing country United States
    Document type Journal Article
    ZDB-ID 632770-9
    ISSN 1532-8406 ; 0883-5403
    ISSN (online) 1532-8406
    ISSN 0883-5403
    DOI 10.1016/j.arth.2020.05.007
    Database MEDical Literature Analysis and Retrieval System OnLINE

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