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Journal of Arthroplasty

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https://read.qxmd.com/read/30777629/response-to-letter-to-the-editor-on-machine-learning-and-primary-total-knee-arthroplasty-patient-forecasting-for-a-patient-specific-payment-model
#1
LETTER
Sergio M Navarro, Heather S Haeberle, Michael A Mont, Viktor E Krebs, Brendan M Patterson, Prem N Ramkumar
No abstract text is available yet for this article.
January 31, 2019: Journal of Arthroplasty
https://read.qxmd.com/read/30777621/results-of-200-consecutive-ceramic-on-ceramic-cementless-hip-arthroplasties-in-patients-up-to-50-years-of-age-a-5-24-years-of-follow-up-study
#2
Giuseppe Solarino, Luigi Zagra, Andrea Piazzolla, Arcangelo Morizio, Giovanni Vicenti, Biagio Moretti
BACKGROUND: Ceramic-on-ceramic (CoC) bearings due to their mechanical properties can be used in primary total hip arthroplasty (THA) especially in young patients requiring a long-lasting implant. The goal of this study is to analyze the results of a series of 200 consecutive CoC THAs in patients aged 50 years or less at the time of surgery. METHODS: A retrospective study was conducted on the first 200 consecutive CoC arthroplasties performed using the direct lateral approach on 105 females and 81 males (14 bilateral cases) with an average age of 44...
January 31, 2019: Journal of Arthroplasty
https://read.qxmd.com/read/30773361/mild-coronal-stem-malalignment-does-not-negatively-impact-survivorship-or-clinical-results-in-uncemented-primary-total-hip-arthroplasties-with-dual-tapered-implants
#3
Nicolas Reina, Christopher G Salib, Kevin I Perry, Arlen D Hanssen, Daniel J Berry, Matthew P Abdel
BACKGROUND: Proper component positioning in total hip arthroplasty (THA) is crucial for implant fixation and hip stability. The purpose of this study is to assess if neutral coronal stem alignment (0° ± 3°) improved long-term survivorship in uncemented femoral components. METHODS: Between 2005 and 2010, 1028 primary THAs were performed with 2 contemporary dual-tapered, proximally coated uncemented stem types. Alignment was measured immediately postoperatively and at most recent follow-up...
January 31, 2019: Journal of Arthroplasty
https://read.qxmd.com/read/30773358/constrained-liner-revision-is-less-effective-with-each-subsequent-constrained-liner-revision-at-preventing-instability
#4
Nicholas M Hernandez, Rafael J Sierra, Robert T Trousdale
BACKGROUND: Constrained liners are used to treat recurring total hip arthroplasty dislocations in certain patients. Little is known about the fate of constrained liner revisions. The aim of this study is to evaluate the rate and survivorship free of revision for mechanical failure of constrained liners in patients who were revised to their first, second, and third constrained liners. METHODS: From 1989 to 2016, using our institution's total joint registry, we identified 554 revisions to a first constrained liner...
January 31, 2019: Journal of Arthroplasty
https://read.qxmd.com/read/30777628/a-simple-protocol-to-stratify-pulmonary-risk-reduces-complications-after-total-joint-arthroplasty
#5
Luis Grau, Fabio R Orozco, Andres F Duque, Zachary D Post, Danielle Y Ponzio, Alvin C Ong
BACKGROUND: Pulmonary complications after total joint arthroplasty are a burden to patients and the healthcare system. The aim of this study is to demonstrate the effectiveness of a pulmonary screening questionnaire and intervention protocol developed at our institution to prevent pulmonary complications. METHODS: Between 2010 and 2015, 7658 consecutive total joint arthroplasty patients at our institution were reviewed. Based on our pre-operative pulmonary risk assessment tool, 1625 patients were flagged as high pulmonary risk...
January 29, 2019: Journal of Arthroplasty
https://read.qxmd.com/read/30777627/freedom-from-opioids-after-total-knee-arthroplasty
#6
Alfred C Kuo, Karthik Raghunathan, Alain M Lartigue, William E Bryan, Marc J Pepin, Steven Takemoto, Arthur W Wallace
BACKGROUND: In the United States, opioids are commonly prescribed to treat knee pain after total knee arthroplasty (TKA). While surgery leads to decreased pain in most patients, a sizable minority continue to experience severe pain and consume opioids chronically after TKA. We sought to determine the population-level effect of TKA on opioid consumption by detailing the pattern of opioid prescriptions before and after surgery. METHODS: We retrospectively identified US Veterans Health Administration TKA patients from 2010 to 2015...
January 29, 2019: Journal of Arthroplasty
https://read.qxmd.com/read/30777626/high-survival-rate-and-very-low-wear-of-lateral-unicompartmental-arthroplasty-at-long-term-a-case-series-of-54-cases-at-a-mean-follow-up-of-17-years
#7
Etienne Deroche, Cécile Batailler, Timothy Lording, Philippe Neyret, Elvire Servien, Sébastien Lustig
BACKGROUND: Survivorship of lateral unicompartmental knee arthroplasty (UKA) has progressively improved. However, there are few studies describing long-term results, and no study reports on polyethylene (PE) wear in lateral unicompartmental arthroplasty. The aims of this study are to determine the survival rate of lateral UKA with a fixed, all-PE bearing, and the PE wear of the tibial implant at a minimum of 15 years follow-up. METHODS: From January 1988 to October 2003, we performed 54 lateral UKAs in 52 patients...
January 29, 2019: Journal of Arthroplasty
https://read.qxmd.com/read/30773356/most-patients-can-kneel-after-total-knee-arthroplasty
#8
Sara J S Wallace, Richard A Berger
BACKGROUND: Patients commonly report difficulty kneeling after total knee arthroplasty (TKA). The purpose of this study was to retrospectively assess patients' ability to kneel after TKA and to prospectively determine whether patients with reported difficulty can be taught to kneel. METHODS: Attempts were made to reach 307 consecutive TKAs in 255 adult patients who were 18-24 months after surgery. Patients were surveyed for their ability to kneel. Those who reported difficulty kneeling were offered participation in a kneeling protocol...
January 29, 2019: Journal of Arthroplasty
https://read.qxmd.com/read/30772112/differences-in-risk-of-revision-and-mortality-between-total-and-unicompartmental-knee-arthroplasty-the-influence-of-hospital-volume
#9
Jorge Arias-de la Torre, Jose M Valderas, Jonathan P Evans, Vicente Martín, Antonio J Molina, Laura Muñoz, Miquel Pons-Cabrafiga, Mireia Espallargues
BACKGROUND: The volume of arthroplasties performed in a hospital by year has an influence on the outcomes of total knee arthroplasty (TKA) and unicompartmental knee arthroplasty (UKA). The aims of this study are (1) to evaluate and compare the risk of revision and mortality of TKA and UKA and (2) to assess whether hospital volume is related to differences in revision risk and mortality. METHODS: All individuals recorded in the Catalan Arthroplasty Register between 1/1/2005 and 31/12/2016, diagnosed with osteoarthritis, undergoing cemented TKA and UKA were included...
January 29, 2019: Journal of Arthroplasty
https://read.qxmd.com/read/30765228/a-weighted-index-of-elixhauser-comorbidities-for-predicting-90-day-readmission-after-total-joint-arthroplasty
#10
Daniel E Goltz, Sean P Ryan, Claire B Howell, David Attarian, Michael P Bolognesi, Thorsten M Seyler
BACKGROUND: Evolving reimbursement models increasingly compel hospitals to assume costs for 90-day readmission after total joint arthroplasty. Although risk assessment tools exist, none currently reach the predictive performance required to accurately identify high-risk patients and modulate perioperative care accordingly. Although unlikely to perform adequately alone, the Elixhauser index is a set of 31 variables that may lend value in a broader model predicting 90-day readmission. METHODS: Elixhauser comorbidities were examined in 10,022 primary unilateral total joint replacements, of which 4535 were hip replacements and 5487 were knee replacements, all performed between June 2013 and January 2018 at a single tertiary referral center...
January 25, 2019: Journal of Arthroplasty
https://read.qxmd.com/read/30777622/impact-of-co-morbidities-on-the-cost-of-care-in-primary-elective-joint-arthroplasty
#11
Sreeram Penna, Kerri L Bell, Feng-Chih Kuo, Robert Andrew Henderson, Carol Foltz, Antonia F Chen
BACKGROUND: The Comprehensive Care for Joint Replacement model is the newest iteration of the bundled payment methodology introduced by the Centers for Medicare and Medicaid Services. Comprehensive Care for Joint Replacement model, while incentivizing providers to deliver care at a lower cost, does not incorporate any patient-level risk stratification. Our study evaluated the impact of specific medical co-morbidities on the cost of care in total joint arthroplasty (TJA) patients. METHODS: A retrospective study was conducted on 1258 Medicare patients who underwent primary elective TJA between January 2015 and July 2016 at a single institution...
January 24, 2019: Journal of Arthroplasty
https://read.qxmd.com/read/30773362/gender-and-preoperative-function-predict-physical-activity-levels-after-revision-total-knee-arthroplasty
#12
Gareth S Turnbull, Chloe E H Scott, Deborah J MacDonald, Steffen J Breusch
BACKGROUND: The incidence of revision total knee arthroplasty (TKA) is projected to increase 6-fold worldwide by 2030. As the number of younger, physically active revision TKA patients increases in future, understanding factors influencing postoperative function will be increasingly important to help counsel patients. The primary aim of this study was to examine factors influencing return to physical activity following revision TKA. METHODS: Patients who had undergone tibiofemoral revision between 2003 and 2013 at a single UK teaching hospital were retrospectively identified from a prospectively collected arthroplasty database...
January 24, 2019: Journal of Arthroplasty
https://read.qxmd.com/read/30773360/spinopelvic-motion-and-impingement-in-total-hip-arthroplasty
#13
Braden M McKnight, Nicholas A Trasolini, Lawrence D Dorr
The stability of a total hip arthroplasty relies on proper positioning of the acetabular cup. Recent research has shown that this cup position is more dynamic than previously thought. The 3-dimensional orientation of the acetabular cup changes when the pelvis tilts anteriorly or posteriorly. These changes in pelvic tilt are directly related to the biomechanics of the lumbosacral junction. In normal physiology, the lumbar spine straightens with sitting and more lordotic with standing. This directly translates to posterior or anterior pelvic tilt due to the rigid sacroiliac attachments...
January 24, 2019: Journal of Arthroplasty
https://read.qxmd.com/read/30773359/positive-culture-during-reimplantation-increases-the-risk-of-reinfection-in-two-stage-exchange-arthroplasty-despite-administrating-prolonged-antibiotics-a-retrospective-cohort-study-and-meta-analysis
#14
Chi Xu, Timothy L Tan, Ji-Ying Chen
BACKGROUND: The significance of a positive culture at reimplantation remains an important topic of consideration given the lack of clear metrics for when reimplantation can be performed. The purpose of this study is thus to investigate the (1) association between a positive culture during reimplantation and failure following 2-stage exchange arthroplasty and the (2) influence of prolonged antibiotics on these patients. METHODS: We retrospectively reviewed 117 patients undergoing 2-stage exchange hip arthroplasty from 2012 to 2016...
January 24, 2019: Journal of Arthroplasty
https://read.qxmd.com/read/30770237/reply-to-letter-to-the-editor-on-web-based-self-directed-physical-therapy-after-total-knee-arthroplasty-is-safe-and-effective-for-most-but-not-all-patients
#15
LETTER
Mitchell R Klement, Alexander J Rondon, Richard M McEntee, Max R Greenky, Matthew S Austin
No abstract text is available yet for this article.
January 24, 2019: Journal of Arthroplasty
https://read.qxmd.com/read/30765231/letter-to-the-editor-on-machine-learning-and-primary-total-knee-arthroplasty-patient-forecasting-for-a-patient-specific-payment-model
#16
LETTER
Thomas G Myers, Benjamin F Ricciardi
No abstract text is available yet for this article.
January 24, 2019: Journal of Arthroplasty
https://read.qxmd.com/read/30755379/letter-to-the-editor-on-web-based-self-directed-physical-therapy-after-total-knee-arthroplasty-is-safe-and-effective-for-most-but-not-all-patients
#17
LETTER
Eustathios Kenanidis
No abstract text is available yet for this article.
January 24, 2019: Journal of Arthroplasty
https://read.qxmd.com/read/30755378/letter-to-the-editor-on-when-should-complete-blood-count-tests-be-performed-in-primary-total-hip-arthroplasty-patients
#18
LETTER
Ramya Somasekhar
No abstract text is available yet for this article.
January 24, 2019: Journal of Arthroplasty
https://read.qxmd.com/read/30755377/response-to-letter-to-the-editor-acute-kidney-injury-after-first-stage-joint-revision-for-infection-risk-factors-and-the-impact-of-antibiotic-dosing
#19
LETTER
Jeffrey A Geller, Gregory J Cunn, Thomas A Herschmiller, Taylor S Murtaugh, Antonia F Chen
No abstract text is available yet for this article.
January 24, 2019: Journal of Arthroplasty
https://read.qxmd.com/read/30773357/increased-persistent-mid-thigh-pain-after-short-stem-compared-with-wedge-shaped-straight-stem-uncemented-total-hip-arthroplasty-at-medium-term-follow-up-a-randomized-double-blinded-cross-sectional-study
#20
Willem Paul Gielis, Jakob van Oldenrijk, Nick Ten Cate, Vanessa A B Scholtes, Carel H Geerdink, Rudolf W Poolman
BACKGROUND: Femoral prosthesis design may impact the frequency of mid-thigh pain. We compared current, incidental, and persistent mid-thigh pain between the short-stem, Collum Femoris femur prosthesis, and the wedge shaped straight-stem, Zweymüller femur prosthesis and studied the associations between demographics, radiographic measurements, and mid-thigh pain. METHODS: We contacted patients from a randomized controlled trial who underwent uncemented total hip arthroplasty (THA) for hip osteoarthritis at a mean follow-up of 44 months (range 24-64 months)...
January 23, 2019: Journal of Arthroplasty
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