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  1. Article ; Online: Central Sensitization Is an Important Factor in the Outcome of Patients Undergoing Total Knee Arthroplasty: Commentary on an article by Man Soo Kim, MD, PhD, et al.: "Minimal Clinically Important Differences for Patient-Reported Outcomes After TKA Depend on Central Sensitization".

    Bedard, Nicholas A

    The Journal of bone and joint surgery. American volume

    2021  Volume 103, Issue 15, Page(s) e60

    MeSH term(s) Arthroplasty, Replacement, Knee ; Central Nervous System Sensitization ; Humans ; Male ; Minimal Clinically Important Difference ; Osteoarthritis, Knee/surgery ; Patient Reported Outcome Measures
    Language English
    Publishing date 2021-08-06
    Publishing country United States
    Document type Journal Article ; Comment
    ZDB-ID 220625-0
    ISSN 1535-1386 ; 0021-9355
    ISSN (online) 1535-1386
    ISSN 0021-9355
    DOI 10.2106/JBJS.21.00497
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: What's New in Periprosthetic Femur Fractures?

    Gausden, Elizabeth B / Bedard, Nicholas A / Gililland, Jeremy M / Haidukewych, George J

    The Journal of arthroplasty

    2024  

    Abstract: Periprosthetic femur fracture (PFF) is one of the most common indications for reoperation following total hip arthroplasty (THA). This article provides a review of a symposium on PFF that was presented at the American Association of Hip and Knee Surgeons ...

    Abstract Periprosthetic femur fracture (PFF) is one of the most common indications for reoperation following total hip arthroplasty (THA). This article provides a review of a symposium on PFF that was presented at the American Association of Hip and Knee Surgeons (AAHKS) 2023 annual meeting, including an overview of the Vancouver classification and its implications on treatment and subsequent complications, an updated approach to the management of intraoperative fractures, and finally, contemporary strategies for both osteosynthesis as well as revision arthroplasty for periprosthetic femur fractures.
    Language English
    Publishing date 2024-04-18
    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.2024.04.037
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article: What is the Impact of Social Deprivation on Mental and Physical Health Before and After Primary Total Knee Arthroplasty?

    Gulley, Morgan L / Carender, Christopher N / Glass, Natalie A / Bedard, Nicholas A

    Arthroplasty today

    2023  Volume 22, Page(s) 101156

    Abstract: Background: The purpose of the present study was to investigate the relationship between socioeconomic status and Patient-Reported Outcomes Measurement Information System Global Health (PROMIS-GH) scores before and after primary total knee arthroplasty ( ...

    Abstract Background: The purpose of the present study was to investigate the relationship between socioeconomic status and Patient-Reported Outcomes Measurement Information System Global Health (PROMIS-GH) scores before and after primary total knee arthroplasty (TKA). We hypothesized that patients with greater social deprivation would have lower PROMIS-GH scores at 3 months and 1 year following primary TKA.
    Methods: We retrospectively reviewed data from patients who underwent unilateral primary TKA and completed PROMIS-GH preoperatively and at 3 months (n = 257) or 1 year (n = 154) postoperatively. Area Deprivation Index (ADI), calculated from 9-digit zip codes, was used to measure social deprivation. Participants were grouped into quartiles by ADI score. Minimal clinically important difference in PROMIS-GH mental (PROMIS-MH) and physical health (PROMIS-PH) component scores were compared between ADI groups.
    Results: Participants in the highest ADI quartile (most disadvantaged) had significantly lower PROMIS-MH and PROMIS-PH scores at every time point relative to the lowest ADI quartile (least disadvantaged) (
    Conclusions: Socially disadvantaged patients benefit equally from primary TKA but are more likely to have persistently lower 1-year postoperative PROMIS-GH scores relative to less disadvantaged patients. Social deprivation should be accounted for when using PROMIS-GH to assess clinical outcomes for research and quality measures.
    Level of evidence: IV, retrospective cohort study.
    Language English
    Publishing date 2023-06-12
    Publishing country United States
    Document type Journal Article
    ISSN 2352-3441
    ISSN 2352-3441
    DOI 10.1016/j.artd.2023.101156
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Marlex Mesh Reconstruction of the Extensor Mechanism: A Concise 5-Year Follow-up of 2 Previous Reports.

    Abdel, Matthew P / Carender, Christopher N / Bedard, Nicholas A / Perry, Kevin I / Pagnano, Mark W / Hanssen, Arlen D

    The Journal of bone and joint surgery. American volume

    2024  Volume 106, Issue 7, Page(s) 608–616

    Abstract: Level of evidence: Therapeutic Level IV . See Instructions for Authors for a complete description of levels of evidence. ...

    Abstract Level of evidence: Therapeutic Level IV . See Instructions for Authors for a complete description of levels of evidence.
    MeSH term(s) Humans ; Follow-Up Studies ; Polypropylenes ; Surgical Mesh ; Prostheses and Implants
    Chemical Substances Polypropylenes
    Language English
    Publishing date 2024-01-09
    Publishing country United States
    Document type Journal Article
    ZDB-ID 220625-0
    ISSN 1535-1386 ; 0021-9355
    ISSN (online) 1535-1386
    ISSN 0021-9355
    DOI 10.2106/JBJS.23.01006
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Association Between Tranexamic Acid and Decreased Periprosthetic Joint Infection Risk in Patients Undergoing Total Hip and Knee Arthroplasty: A Systematic Review and Meta-Analysis of Over 2 Million Patients.

    Elmenawi, Khaled A / Mohamed, Farah Ae / Poilvache, Hervé / Prokop, Larry J / Abdel, Matthew P / Bedard, Nicholas A

    The Journal of arthroplasty

    2024  

    Abstract: Background: The purpose of this study was to perform a systematic review and meta-analysis to evaluate the association between tranexamic acid (TXA) use during primary total hip arthroplasty (THA) and primary total knee arthroplasty (TKA), and the risk ... ...

    Abstract Background: The purpose of this study was to perform a systematic review and meta-analysis to evaluate the association between tranexamic acid (TXA) use during primary total hip arthroplasty (THA) and primary total knee arthroplasty (TKA), and the risk of developing periprosthetic joint infection (PJI) after these procedures.
    Methods: A systematic review was carried out from inception to October 17, 2022. There were six studies that were ultimately included in the meta-analysis. The association between the development of PJI and TXA was analyzed using odds ratios (OR) with 95% confidence intervals (CI) and estimates of risk difference (RD). Subgroup analysis was performed to evaluate only studies reporting out to 90 days of follow-up versus greater than 90 days of follow-up.
    Results: Among 2,098,469 arthroplasties, TXA utilization was associated with an overall lower risk of PJI (OR = 0.63 [95% CI 0.42 to 0.96], P < 0.001) and a 0.4% lower incidence of PJI (RD = -0.0038, 95% CI [-0.005 to -0.002], P < 0.001). When sub-grouping the studies according to length of follow-up, TXA was associated with a lower risk of PJI (OR = 0.43 [95% CI 0.35 to 0.53], P < 0.001) and a 1% lower incidence of PJI (RD = -0.0095 [95% CI -0.013 to -0.005], P < 0.001) in patients followed for more than 90 days.
    Conclusion: This meta-analysis demonstrates that TXA use is associated with a reduced risk of PJI, with our RD analysis identifying an approximately 0.4% reduction in PJI rates with TXA use. These findings provide even more data to support the routine use of TXA during primary THA and primary TKA.
    Language English
    Publishing date 2024-04-16
    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.2024.04.033
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Periprosthetic Hip and Knee Infection: Is an Ipsilateral Uninfected Total Joint Arthroplasty at Risk?

    Karczewski, Daniel / Salmons, Harold I / Thapa, Prabin / Tande, Aaron J / Bedard, Nicholas A / Berry, Daniel J / Abdel, Matthew P

    The Journal of arthroplasty

    2024  

    Abstract: Background: Periprosthetic joint infections (PJIs) of total hip arthroplasty (THA) or total knee arthroplasty (TKA) may occur in the setting of an uninfected ipsilateral prosthetic joint. However, the risk to that uninfected ipsilateral joint is unknown. ...

    Abstract Background: Periprosthetic joint infections (PJIs) of total hip arthroplasty (THA) or total knee arthroplasty (TKA) may occur in the setting of an uninfected ipsilateral prosthetic joint. However, the risk to that uninfected ipsilateral joint is unknown. We analyzed the survivorship free from PJI in at risk THAs and TKAs following treatment of an ipsilateral knee or hip PJI, respectively.
    Methods: Using our institutional total joint registry, we identified 205 patients who underwent treatment for PJI (123 THAs and 83 TKAs) with an at-risk ipsilateral in situ knee or hip, respectively, between 2000 and 2019. In total, 54% of index PJIs were chronic and 46% were acute. The mean age was 70 years, 47% were female, and the mean body mass index was 32. Kaplan-Meier survivorship analyses were performed. Mean follow-up was 6 years.
    Results: The 5-year survivorship free of PJI in an at-risk THA after an ipsilateral TKA was treated for PJI was 97%. The 5-year survivorship free of PJI in an at-risk TKA when the ipsilateral THA was treated for PJI was 99%. Three PJIs occurred (2 THAs and 1 TKA), all over 1 year from the index ipsilateral PJI treatment. One hip PJI was an acute hematogenous infection that resulted from pneumonia. The other 2 new PJIs were caused by the same organism as the index PJI and were due to a failure of source control at the index joint.
    Conclusions: When diagnosed with PJI in a single joint, the risk of developing PJI in an ipsilateral prosthetic joint within 5 years was low (1 to 3% risk). In the rare event of an ipsilateral infection, all occurred greater than one year from the index PJI and 2 of 3 were with the same organism when source infection control failed.
    Level of evidence: Prognostic Level III.
    Language English
    Publishing date 2024-03-20
    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.2024.03.034
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: New Ceramic Heads With Titanium Sleeves on Retained Femoral Components: Results of Over 500 Revision Total Hip Arthroplasties.

    Roberts, Heather J / Hannon, Charles P / Dilger, Oliver B / Bedard, Nicholas A / Berry, Daniel J / Abdel, Matthew P

    The Journal of arthroplasty

    2024  

    Abstract: Background: Ceramic heads are frequently combined with titanium sleeves in revision total hip arthroplasties (THAs), ostensibly to protect the ceramic head from existing damage to the retained trunnion. Although widely adopted, data on the performance ... ...

    Abstract Background: Ceramic heads are frequently combined with titanium sleeves in revision total hip arthroplasties (THAs), ostensibly to protect the ceramic head from existing damage to the retained trunnion. Although widely adopted, data on the performance and safety of this construct are minimal. The purpose of this study was to describe implant survivorships, radiographic results, and clinical outcomes of patients who underwent revision THA with a ceramic head and titanium sleeve on a retained femoral component.
    Methods: We identified 516 revision THAs with femoral component retention (328 acetabular-only revisions and 188 bearing surface exchanges) treated with a new ceramic head and titanium sleeve between 2000 and 2020. Mean age at revision was 64 years, 56% were women, and mean body mass index was 30. The indications for revision THA were adverse local tissue reaction (25%), acetabular loosening (24%), dislocation (17%), infection (5%), and other (29%). Kaplan-Meier survivorships were analyzed, radiographs reviewed, and Harris Hip Scores evaluated. Mean follow-up was 4 years (range, 2 to 10).
    Results: There were no reoperations or failures for ceramic head fracture, taper corrosion, or head/sleeve disengagement. The 10-year survivorship free of any re-revision was 85%. Indications for the 57 re-revisions included dislocation (33), infection (13), acetabular component loosening (7), periprosthetic fracture (2), psoas impingement (1), and sciatic nerve irritation (1). The 10-year survivorship free of any reoperation was 82%. There were an additional 14 reoperations. Radiographically, 1.9% had progressive femoral radiolucent lines, and 4.7% had progressive acetabular radiolucent lines. Mean Harris Hip Score was 81 at 2 years.
    Conclusions: New ceramic heads with titanium sleeves in revision THAs with retained femoral components were durable and reliable with no cases of ceramic head fracture or taper complications at mean 4-year follow-up, including those revised for adverse local tissue reaction.
    Level of evidence: IV.
    Language English
    Publishing date 2024-02-07
    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.2024.01.045
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: Cemented dual-mobility constructs in uncemented revision acetabular components.

    Wilson, Jacob M / Trousdale, Robert T / Bedard, Nicholas A / Lewallen, David G / Berry, Daniel J / Abdel, Matthew P

    The bone & joint journal

    2024  Volume 106-B, Issue 4, Page(s) 352–358

    Abstract: Aims: Dislocation remains a leading cause of failure following revision total hip arthroplasty (THA). While dual-mobility (DM) bearings have been shown to mitigate this risk, options are limited when retaining or implanting an uncemented shell without ... ...

    Abstract Aims: Dislocation remains a leading cause of failure following revision total hip arthroplasty (THA). While dual-mobility (DM) bearings have been shown to mitigate this risk, options are limited when retaining or implanting an uncemented shell without modular DM options. In these circumstances, a monoblock DM cup, designed for cementing, can be cemented into an uncemented acetabular shell. The goal of this study was to describe the implant survival, complications, and radiological outcomes of this construct.
    Methods: We identified 64 patients (65 hips) who had a single-design cemented DM cup cemented into an uncemented acetabular shell during revision THA between 2018 and 2020 at our institution. Cups were cemented into either uncemented cups designed for liner cementing (n = 48; 74%) or retained (n = 17; 26%) acetabular components. Median outer head diameter was 42 mm. Mean age was 69 years (SD 11), mean BMI was 32 kg/m
    Results: There were nine cemented DM cup revisions: three for periprosthetic joint infection, three for acetabular aseptic loosening from bone, two for dislocation, and one for a broken cup-cage construct. The two-year survivals free of aseptic DM revision and dislocation were both 92%. There were five postoperative dislocations, all in patients with prior dislocation or abductor deficiency. On radiological review, the DM cup remained well-fixed at the cemented interface in all but one case.
    Conclusion: While dislocation was not eliminated in this series of complex revision THAs, this technique allowed for maximization of femoral head diameter and optimization of effective acetabular component position during cementing. Of note, there was only one failure at the cemented interface.
    MeSH term(s) Humans ; Female ; Aged ; Male ; Prosthesis Failure ; Prosthesis Design ; Retrospective Studies ; Acetabulum/surgery ; Arthroplasty, Replacement, Hip/methods ; Hip Prosthesis ; Joint Dislocations/surgery ; Reoperation/methods ; Follow-Up Studies
    Language English
    Publishing date 2024-04-01
    Publishing country England
    Document type Journal Article
    ZDB-ID 2697156-2
    ISSN 2049-4408 ; 2049-4394
    ISSN (online) 2049-4408
    ISSN 2049-4394
    DOI 10.1302/0301-620X.106B4.BJJ-2023-1061.R1
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: Is the Rise of Medicare Advantage Impacting the Fidelity of Traditional Medicare Claims Data? Implications for Reporting of Long-Term Total Hip Arthroplasty Survivorship.

    Chen, Xiao T / Glasgow, Amy E / Habermann, Elizabeth E / Heckmann, Nathanael D / Callaghan, John J / Lewallen, David G / Berry, Daniel J / Bedard, Nicholas A

    The Journal of arthroplasty

    2024  

    Abstract: Background: Arthroplasty registries often use traditional Medicare (TM) claims data to report long-term total hip arthroplasty (THA) survivorship. The purpose of this study was to determine whether the large number of patients leaving TM for Medicare ... ...

    Abstract Background: Arthroplasty registries often use traditional Medicare (TM) claims data to report long-term total hip arthroplasty (THA) survivorship. The purpose of this study was to determine whether the large number of patients leaving TM for Medicare Advantage (MA) has compromised the fidelity of TM data.
    Methods: We identified 10,962 THAs in 9,333 Medicare-eligible patients who underwent primary THA from 2000 to 2020 at a single institution. Insurance type was analyzed, and 83% of patients had TM at the time of THA. Survivorship free from any revision or reoperation was calculated for patients who have TM. The same survivorship end points were recalculated with censoring performed when a patient transitioned to an MA plan after their primary THA to model the impact of losing patients from the TM dataset. Differences in survivorship were compared. The mean follow-up was 7 years.
    Results: From 2000 to 2020, there was a decrease in TM insurance (93 to 73%) and a corresponding increase in MA insurance (0 to 19%) among THA patients. Following THA, 23% of TM patients switched to MA. For patients who had TM at the time of surgery, 15-year survivorship free from any reoperation or revision was 90% and 93%, respectively. When censoring patients upon transition from TM to MA, survivorship free from any reoperation became significantly higher (92 versus 90% at 15 years; hazard ratio = 1.16, P = .033), and there was a trend toward higher survivorship free from any revision (95 versus 93% at 15 years; hazard ratio = 1.16, P = .074).
    Conclusions: Approximately 1 in 4 patients left TM for MA after primary THA, effectively making them lost to follow-up within TM datasets. The mass exodus of patients out of TM appears to have led to a slight overestimation of survivorship free from any reoperation and trended toward overestimating survivorship free from any revision. If MA continues to grow, efforts to obtain MA data will become even more important.
    Language English
    Publishing date 2024-03-15
    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.2024.03.014
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Online: Obesity and Primary Total Hip Arthroplasty: The Absolute versus Relative Risk of Periprosthetic Joint Infection at 15 Years.

    Carender, Christopher N / Fruth, Kristin M / Lewallen, David G / Berry, Daniel J / Abdel, Matthew P / Bedard, Nicholas A

    The Journal of arthroplasty

    2024  

    Abstract: Background: To make an informed decision about total hip arthroplasty (THA), surgeons and patients need to understand the absolute and relative risks of periprosthetic joint infection (PJI). We sought to evaluate the long-term risk of PJI following ... ...

    Abstract Background: To make an informed decision about total hip arthroplasty (THA), surgeons and patients need to understand the absolute and relative risks of periprosthetic joint infection (PJI). We sought to evaluate the long-term risk of PJI following primary THA stratified by body mass index (BMI) and PJI-related risk factors.
    Methods: We identified 21,550 primary THAs performed from 2000 to 2021 at a single institution. Patients were stratified as having 0, 1, or ≥ 2 PJI risk factors (diabetes, chronic kidney disease, nonprimary osteoarthritis, immunosuppression, or active smoking) and into BMI categories. The 15-year cumulative risk of PJI was evaluated by BMI and PJI risk factors.
    Results: For the entire cohort, the 15-year absolute risk of PJI was 2%. For patients who did not have PJI risk factors, the absolute risk of PJI at 15 years was 1% in normal weight, 2% in class III obesity, and 4% in class IV obesity. Patients who had class III and IV obesity had a 3-times and 9-times higher relative risk of PJI, respectively (P = .03, P < .001). Among patients who had ≥ 2 PJI risk factors, the absolute risk of PJI at 15 years was 2% in normal weight, 4% in class III obesity, and 18% in class IV obesity.
    Conclusions: Healthy patients who had class III and IV obesity had a 3-times and 9-times increased risk of PJI at 15 years relative to normal weight patients. However, the absolute risk of PJI at 15 years was 2 and 4%, respectively. Given emerging data questioning whether BMI modification decreases PJI risk, surgeons and patients must consider both a 3-times to 9-times increased relative risk of PJI and a 2 to 4% absolute risk of PJI at 15 years for healthy patients who had a BMI ≥ 40.
    Level of evidence: IV.
    Language English
    Publishing date 2024-03-21
    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.2024.03.033
    Database MEDical Literature Analysis and Retrieval System OnLINE

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