Tranexamic Acid is Associated with Reduced Periprosthetic Joint Infection after Primary Total Joint Arthroplasty
Previous studies have demonstrated preoperative anemia to be a strong risk factor for periprosthetic joint infection (PJI) in total joint arthroplasty (TJA). Allogeneic blood transfusion can be associated with increased risk of PJI after primary and revision TJA. Tranexamic acid (TXA) is known to reduce blood loss and the need for allogeneic blood transfusion after TJA. The hypothesis of this study was that administration of intravenous TXA would result in a reduction in PJI after TJA. (Source: The Journal of Arthroplasty)
Source: The Journal of Arthroplasty - October 22, 2019 Category: Orthopaedics Authors: Hamidreza Yazdi, Mitchell R. Klement, Mohammed Hammad, Daisuke Inoue, Chi Xu, Karan Goswami, Javad Parvizi Source Type: research

Definitive Resection Arthroplasty of the Knee: A Surprisingly Viable Treatment to Manage Intractable Infection in Selected Patients
Resection arthroplasty of the hip is considered a viable option after multiple failed attempts to eradicate a prosthetic joint infection (PJI). However, much less information about resection arthroplasty of the knee is available. The goals of this study were to determine the success of infection eradication with a resection arthroplasty of the knee, and subsequent functional outcomes in this group. (Source: The Journal of Arthroplasty)
Source: The Journal of Arthroplasty - October 19, 2019 Category: Orthopaedics Authors: Ashton H. Goldman, Nicholas J. Clark, Michael J. Taunton, David G. Lewallen, Daniel J. Berry, Matthew P. Abdel Source Type: research

Rheumatoid Arthritis Increases Venous Thromboemboli, Readmissions, and Costs of Care Following Primary Total Knee Arthroplasty: A Matched-Control Analysis
Recent studies have demonstrated patients with rheumatoid arthritis (RA) have deranged coagulation parameters predisposing them to venous thromboembolisms (VTE). As the prevalence of RA within the United States continue to increase, evaluating whether patients who have RA are susceptible to developing VTEs following primary total knee arthroplasty (TKA) is warranted. Therefore, the purpose of this study was to investigate whether patients who have RA undergoing primary TKA have higher rates of: 1) VTEs; 2) readmission rates; and 3) costs of care. (Source: The Journal of Arthroplasty)
Source: The Journal of Arthroplasty - October 19, 2019 Category: Orthopaedics Authors: Rushabh M. Vakharia, Ajit M. Vakharia, Joseph O. Ehiorobo, Samuel J. Swiggett, Michael A. Mont, Martin W. Roche Source Type: research

Development of preoperative prediction models for pain and functional outcome after total knee arthroplasty using The Dutch Arthroplasty Register (LROI) data
One of the main determinants of treatment satisfaction after total knee arthroplasty (TKA) is the fulfillment of preoperative expectations. For optimal expectation management, it is useful to accurately predict the treatment result. Multiple patient factors registered in the Dutch Arthroplasty Register (LROI) can potentially be utilized to estimate the most likely treatment result. The aim of the present study was to create and validate models that predict residual symptoms for patients undergoing primary TKA for knee osteoarthritis. (Source: The Journal of Arthroplasty)
Source: The Journal of Arthroplasty - October 18, 2019 Category: Orthopaedics Authors: J.J. Tolk, J.H. Waarsing, R.P.A. Janssen, L.N. van Steenbergen, S.M.A. Bierma-Zeinstra, M. Reijman Source Type: research

The association between anxiety, depression and locus of control with patient outcomes following total knee arthroplasty
We aimed to determine how preoperative anxiety, depression, and locus of control (LoC) might predict patient outcomes following total knee arthroplasty (TKA). (Source: The Journal of Arthroplasty)
Source: The Journal of Arthroplasty - October 18, 2019 Category: Orthopaedics Authors: Joshua Xu, Joshua Twiggs, David Parker, Jonathan Negus Source Type: research

Improvements in objectively measured activity behaviours do not correlate with improvements in patient-reported outcome measures following total knee arthroplasty
Activity monitors have added a new dimension to our ability to objectively measure physical activity (PA) in patients undergoing total knee arthroplasty (TKA). The aim of the study was to assess whether changes in the time spent sitting, standing and stepping were associated with changes in patient-reported outcome measures (PROMs) before and after TKA. (Source: The Journal of Arthroplasty)
Source: The Journal of Arthroplasty - October 17, 2019 Category: Orthopaedics Authors: Emmanuel Frimpong, Dick van der Jagt, Lipalo Mokete, Jurek Pietrzak, Yusuf S. Kaoje, Anne Smith, Joanne A. McVeigh, Rebecca M. Meiring Source Type: research

Patient-reported Outcomes Following Total Hip Arthroplasty: A Multicenter Comparison Based on Surgical Approaches
Comparisons of patient-reported outcomes (PROs) based on surgical approach for total hip arthroplasty (THA) in the US are limited to series from single surgeons or institutions. Using prospective data from a large, multi-center study, we compare pre to post-operative changes in PROs between posterior, transgluteal, and anterior surgical approaches to THA. (Source: The Journal of Arthroplasty)
Source: The Journal of Arthroplasty - October 17, 2019 Category: Orthopaedics Authors: Daniel J. Finch, Brook I. Martin, Patricia D. Franklin, Laurence S. Magder, Vincent D. Pellegrini Source Type: research

Analysis of readability, quality and content of Online Information available for “Stem Cell” Injections for Knee Osteoarthritis
An increasing number of patients use the Internet to obtain health information, although online information is unregulated and highly variable. We aimed to assess the readability, quality, and content of online information available for “stem cell” injections for knee osteoarthritis (OA). (Source: The Journal of Arthroplasty)
Source: The Journal of Arthroplasty - October 16, 2019 Category: Orthopaedics Authors: Mitchell Ng, Michael Mont, Nicolas S. Piuzzi Source Type: research

Perioperative Outcomes and Complications after Primary Total Hip Arthroplasty in Patients with Disproportionately Short Stature: A Matched Cohort Analysis
This study compared: 1) peri-operative outcomes, 2) post-operative complications and 3) re-operation rates after primary THA between short stature patients and matched control patients. (Source: The Journal of Arthroplasty)
Source: The Journal of Arthroplasty - October 16, 2019 Category: Orthopaedics Authors: Hiba K. Anis, Kara M. McConaghy, Ryan J. Charles, Jared A. Warren, Daniel C. Santana, Alison K. Klika, Wael K. Barsoum, Viktor E. Krebs, Carlos A. Higuera, Nicolas S. Piuzzi Source Type: research

Sagittal stability and implant design affect patient reported outcomes following total knee arthroplasty.
Joint stability is one of the goals of any joint replacement. The contribution of prosthesis design to sagittal stability in total knee arthroplasty (TKA) has emerged as an area of interest. The purpose of this study was to evaluate the sagittal stability of four prosthesis types and determine the effect on patient reported outcome measures (PROM). (Source: The Journal of Arthroplasty)
Source: The Journal of Arthroplasty - October 16, 2019 Category: Orthopaedics Authors: Christopher W. Jones, Hans Jacobs, Sarah Shumborski, Simon Talbot, Andrew Redgment, Roger Brighton, William Walter Source Type: research

Does the effectiveness and mechanical strength of kanamycin-loaded bone cement in musculoskeletal tuberculosis compare to vancomycin-loaded bone cement?
Antibiotic-loaded bone cement (ALBC) is used to deliver antimycobacterial agents into the focal lesion of musculoskeletal tuberculosis. Although kanamycin is currently used as an antimycobacterial agent for the treatment of multidrug-resistant tuberculosis, there is no information about its suitability in ALBC. (Source: The Journal of Arthroplasty)
Source: The Journal of Arthroplasty - October 16, 2019 Category: Orthopaedics Authors: Jae Hoo Lee, Sung Jae Shin, Sang-Nae Cho, Seung-Hun Baek, Do Hyun Kim, Kwan Kyu Park Source Type: research

A Novel Adjunct Indicator of PJI: Platelet Count and Mean Platelet Volume
Diagnosing a periprosthetic joint infection (PJI) is difficult and often requires a combination of objective findings. The purpose of this study was to determine whether platelets, a known acute phase reactant, would be able to further aid in the diagnosis of PJI. (Source: The Journal of Arthroplasty)
Source: The Journal of Arthroplasty - October 15, 2019 Category: Orthopaedics Authors: Taylor Paziuk, Alexander J. Rondon, Karan Goswami, Timothy L. Tan, Javad Parvizi Source Type: research

Intraoperative Practice Variability in Total Knee Arthroplasty
Considerable practice variability exists among orthopaedic surgeons performing total knee arthroplasty (TKA). The purpose of this study was to understand what TKA surgical and perioperative techniques are standard among high volume academic knee replacement surgeons. (Source: The Journal of Arthroplasty)
Source: The Journal of Arthroplasty - October 15, 2019 Category: Orthopaedics Authors: Liam C. Bosch, Samuel Beger, Stephen T. Duncan, Stefano M.P. Rossi, Peter K. Sculco, C. Lowry Barnes, Derek F. Amanatullah Source Type: research

Highly Cross-Linked Polyethylene in Total Hip Arthroplasty in Patients Younger than 50 Years with Osteonecrosis of the Femoral Head A Minimum of 10 Years of Follow-Up
Polyethylene wear and subsequent periprosthetic osteolysis remains a major concern of total hip arthroplasty (THA) failure in young, active patients with osteonecrosis of the femoral head (ONFH). The literature is lacking regarding the long-term performance of highly cross-linked polyethylene (HXLPE) in these patients. The purpose of this study was to evaluate long-term results for cementless THA using metal-on-HXLPE bearing couplings in patients younger than 50 years with ONFH. (Source: The Journal of Arthroplasty)
Source: The Journal of Arthroplasty - October 15, 2019 Category: Orthopaedics Authors: Byung-Woo Min, Chul-Hyun Cho, Eun-Suck Son, Kyung-Jae Lee, Si-Wook Lee, Kwang-Soon Song Source Type: research

Risk Factors for Periprosthetic Femur Fracture and Influence of Femoral Fixation Using the Mini-Anterolateral Approach in Primary Total Hip Arthroplasty
The mini-anterolateral (AL) approach for total hip arthroplasty (THA) has gained popularity. In contrast to other approaches, risk factors for periprosthetic femur fractures (PFF) have not been well established for the AL approach. (Source: The Journal of Arthroplasty)
Source: The Journal of Arthroplasty - October 14, 2019 Category: Orthopaedics Authors: Carl L. Herndon, Jared A. Nowell, Nana O. Sarpong, H. John Cooper, Roshan P. Shah, Jeffrey A. Geller Source Type: research

Surgeon Reimbursement Unchanged as Hospital Charges and Reimbursements Increase for Total Joint Arthroplasty
This study aimed to analyze the trend in hospital charges and payments relative to corresponding surgeon charges and payments in a Medicare population for total hip (THA) and knee arthroplasty (TKA). (Source: The Journal of Arthroplasty)
Source: The Journal of Arthroplasty - October 14, 2019 Category: Orthopaedics Authors: Nicole Durig Quinlan, Dennis Q. Chen, James A. Browne, Brian C. Werner Source Type: research

Mid-term outcomes and frequency of osteolysis of total hip arthroplasty using cementless modular stem for Asian patients
Modular stems are useful for total hip arthroplasty (THA) in anatomically difficult dysplasia. Here, we present mean 6.8-year outcomes of cementless primary THA using S-ROM-A (modified modular stem for Asian patients) femoral prosthesis in anatomically difficult cases. (Source: The Journal of Arthroplasty)
Source: The Journal of Arthroplasty - October 14, 2019 Category: Orthopaedics Authors: Atsuko Sato, Naoki Okuda, Sachiyuki Tsukada, Akimasa Kimura, Masanori Kase, Masaaki Matsubara Source Type: research

Ed board
(Source: The Journal of Arthroplasty)
Source: The Journal of Arthroplasty - October 13, 2019 Category: Orthopaedics Source Type: research

Masthead
(Source: The Journal of Arthroplasty)
Source: The Journal of Arthroplasty - October 13, 2019 Category: Orthopaedics Source Type: research

Table of Contents
(Source: The Journal of Arthroplasty)
Source: The Journal of Arthroplasty - October 13, 2019 Category: Orthopaedics Source Type: research

Conflict of Interest
(Source: The Journal of Arthroplasty)
Source: The Journal of Arthroplasty - October 13, 2019 Category: Orthopaedics Source Type: research

Comparison of Gap Balancing Versus Measured Resection Technique in Patients Undergoing Simultaneous Bilateral Total Knee Arthroplasty: One Technique per Knee
Total knee arthroplasty requires careful surgical technique to attain the goal of a well-aligned and symmetrically balanced knee. Soft tissue balance and correct femoral component rotation are paramount in achieving these goals. The two competing techniques to select femoral component rotation and soft tissue balance are the gap balance technique and the measured resection technique. (Source: The Journal of Arthroplasty)
Source: The Journal of Arthroplasty - October 10, 2019 Category: Orthopaedics Authors: Sachin Tapasvi, Anshu Shekhar, Shantanu Patil, Matthew V. Dipane, Madhav Chowdhry, Edward J. McPherson Source Type: research

Comparison of posterior-cruciate-retaining and high flexion cruciate-retaining total knee arthroplasty design
High-flexion prostheses have been developed to achieve deep flexion after total knee arthroplasty. The purpose of this study was to compare standard NexGen (CR) and high-flexion NexGen (CR-flex) total knee prostheses in terms of ROM, clinical and radiologic outcomes, rates of complications, and survivorship in long term follow-up. (Source: The Journal of Arthroplasty)
Source: The Journal of Arthroplasty - October 10, 2019 Category: Orthopaedics Authors: Won-Gyun Lee, Eun-Kyoo Song, Seung-Won Choi, Quan He Jin, Jong-Keun Seon Source Type: research

Enhanced Selection of Candidates for Same Day and Outpatient Total Knee Arthroplasty
Medicare removed total knee arthroplasty (TKA) from its inpatient-only list and private insurers created ambulatory surgical codes; these changes bring about logistical challenges for TKA episode planning. We identified preoperatively determined factors associated with hospital length of stay (LOS) for 1) same day discharge (SDD) and 2) inpatient TKA defined by Medicare ’s two-midnight rule benchmark. (Source: The Journal of Arthroplasty)
Source: The Journal of Arthroplasty - October 9, 2019 Category: Orthopaedics Authors: Meredith Grogan Moore, David P. Brigati, Tom J. Crijns, Thomas R. Vetter, Randall Schultz, Kevin J. Bozic Source Type: research

Eighteen-Year Follow-up Study of Two Alternative Bearing Surfaces Used in Total Hip Arthroplasty in the Same Young Patients
This study compares the long-term functional, radiographic, and computed tomography (CT) scan outcomes and implant survivorship of ceramic-on-ceramic total hip arthroplasty (C-O-C THA) and ceramic-on-highly X-linked polyethylene total hip arthroplasty (C-O-HXLPE THA) in the same patients. (Source: The Journal of Arthroplasty)
Source: The Journal of Arthroplasty - October 9, 2019 Category: Orthopaedics Authors: Young-Hoo Kim, Jang-Won Park Source Type: research

The Effect of estimated Glomerular Filtration Rate (eGFR) on 30-day Mortality and Postoperative Complications after Total Hip Arthroplasty: A Risk Stratification Instrument?
Chronic Kidney Disease (CKD) is a relatively common comorbidity that has been shown to adversely affect outcomes in total hip arthroplasy (THA), as well as to increase the procedure ’s total costs. However, the effect of different stages of kidney disease and the association of estimated glomerular filtration rate’s (eGFR) with perioperative THA complications is less understood. Therefore, the aims of this study were to investigate the relationships between eGFR, both as a categorical and continuous variable and 30-day outcomes and complications. (Source: The Journal of Arthroplasty)
Source: The Journal of Arthroplasty - October 9, 2019 Category: Orthopaedics Authors: Jared A. Warren, Jaiben George, Hiba K. Anis, Olivia Krebs, Robert Molloy, Carlos A. Higuera, Nicolas S. Piuzzi Source Type: research

Hospital Adverse Events and Perioperative Outcomes in Bilateral Direct Anterior Approach Total Hip Arthroplasty
Perioperative hospital adverse events represent a significant outcome that is often overlooked. Even “minor events” such as fever or tachycardia may lead to significant costs due to workup tests, interconsultations, and/or increased length of stay(LOS). The optimal timing of bilateral direct anterior approach total hip arthroplasty (DAA-THA) remains unsettled. Consequently, we wanted to compare hospital LOS, discharge disposition, hospital adverse events-major; minor, and transfusion rates between simultaneous and staged bilateral DAA-THA. (Source: The Journal of Arthroplasty)
Source: The Journal of Arthroplasty - October 9, 2019 Category: Orthopaedics Authors: Jesus M. Villa, Tejbir S. Pannu, Carlos A. Higuera, Juan C. Suarez, Preetesh D. Patel, Wael K. Barsoum Source Type: research

Current preclinical testing of new hip replacement technologies does not reflect real world loadings: capturing patient-specific and activity-related variation in hip contact forces
Total hip replacement (THR) implants are routinely tested for their tribological performance through regulatory pre-clinical wear testing (e.g. ISO-14242). The standardized loading conditions defined in these tests consist of simplified waveforms, which do not specifically represent in vivo loads in different groups of patients. The aim of this study was to investigate, through musculoskeletal modelling, patient-specific and activity-related variation in hip contact forces (HCFs) in a large cohort of THR patients during common activities of daily living (ADLs). (Source: The Journal of Arthroplasty)
Source: The Journal of Arthroplasty - October 9, 2019 Category: Orthopaedics Authors: David E. Lunn, Enrico De Pieri, Graham J. Chapman, Morten E. Lund, Anthony C. Redmond, Stephen J. Ferguson Source Type: research

How Flat is the Tibial Osteotomy in Total Knee Arthroplasty?
Cementless TKA has been developed to decrease the incidence of failure in younger and more active patients. However, failures of cementless components are still more common. It is hypothesized that this is triggered by incomplete bony-tray contact. The present study compares the final seated contact area of a cementless tray as a function of the initial osteotomy flatness. (Source: The Journal of Arthroplasty)
Source: The Journal of Arthroplasty - October 9, 2019 Category: Orthopaedics Authors: Luis E. Delgadillo, Hugh L. Jones, Sabir K. Ismaily, Shuyang Han, Philip C. Noble Source Type: research

Perioperative Chlorhexidine Gluconate Wash During Joint Arthroplasty Have Equivalent PJI Rates in Comparison to Betadine Wash
Dilute betadine wash has been used for the prevention of prosthetic joint infection (PJI). Appropriateness for this purpose has recently come into question as the FDA determined that several commercial products did not pass the standards of proper sterility. The goal of this study was to determine if change in our institution ’s perioperative infection protocol to sterile chlorhexidine gluconate wash affected rates of PJI. (Source: The Journal of Arthroplasty)
Source: The Journal of Arthroplasty - October 9, 2019 Category: Orthopaedics Authors: Adam Driesman, Michelle Shen, James E. Feng, Daniel Waren, James Slover, Joseph Bosco, Ran Schwarzkopf Source Type: research

Systematic review of modular bicompartmental knee arthroplasty for medio-patellofemoral osteoarthritis
We aimed to locate, appraise and synthesize the available literature to assess the functional outcome of modular bicompartmental knee arthroplasty (BKA) compared to total knee arthroplasty (TKA) for medio-patellofemoral osteoarthritis. (Source: The Journal of Arthroplasty)
Source: The Journal of Arthroplasty - October 8, 2019 Category: Orthopaedics Authors: Priyadarshi Amit, Nishant Singh, Ashish Soni, Nicholas Kenneth Bowman, Michelle Maden Source Type: research

New Implant Introduction in Total Hip Arthroplasty Using Radiostereometric Analysis - A Cautionary Note
It has been proposed that the introduction of new hip implant technology in Orthopaedic surgery be conducted in a more controlled manner in order to properly ensure patient safety and the likelihood of favourable outcomes. This stepwise introduction would first require a prospective randomized study in a small cohort of patients, using radiostereometric analysis (RSA). The aim of this study was to determine if the recent literature supports the use of RSA as an early screening tool to accurately predict the long-term outcomes of cementless femoral stems. (Source: The Journal of Arthroplasty)
Source: The Journal of Arthroplasty - October 8, 2019 Category: Orthopaedics Authors: Abigail Frazer, Michael Tanzer Source Type: research

Determining and Achieving Target Limb-Length and Offset in Total Hip Arthroplasty using Intraoperative Digital Radiography
Achieving appropriate limb-length and offset in total hip arthroplasty (THA) is challenging. Target limb-length and offset may not always mean equal radiographic measurements bilaterally. The goal of this study is to introduce a method for determining as well as achieving target limb-length and offset using digital radiographic (DR) measurements. (Source: The Journal of Arthroplasty)
Source: The Journal of Arthroplasty - October 7, 2019 Category: Orthopaedics Authors: Eytan M. Debbi, Sean S. Rajaee, Brian F. Mayeda, Brad L. Penenberg Source Type: research

Low Dose Aspirin is Adequate for VTE Prevention Following Total Joint Arthroplasty: A Systematic Review
Patients undergoing total joint arthroplasty(TJA) are at risk of developing venous thromboembolism(VTE) without adequate prophylaxis. Since the American Academy of Orthopedic Surgeons(AAOS) issued guidelines in 2007 recommending aspirin 325 mg BID for 6-weeks, aspirin has been favored as the main VTE prophylaxis. However, the appropriate dose and duration of aspirin are not well-studied. This systematic review aims to identify any differences between high and low dose as well as duration for aspirin thromboprophylaxis after TJA as outlined by previous studies. (Source: The Journal of Arthroplasty)
Source: The Journal of Arthroplasty - October 5, 2019 Category: Orthopaedics Authors: Ibrahim Azboy, Hannah Groff, Karan Goswami, Mohammed Vahedian, Javad Parvizi Source Type: research

Zip Codes May Not be an Adequate Method to Risk Adjust for Socioeconomic Status following TJA at the Individual Surgeon Level
Increasing consumerism in healthcare has included a push towards the ranking of individual surgeons. These rankings rely on the adjustment of patient outcomes based on individual patient risk. Socioeconomic status (SES) has been identified as an important variable impacting patient outcomes following total joint arthroplasty (TJA), and patient zip code has been proposed as a proxy. Our study attempts to determine if zip code is an acceptable proxy for socioeconomic status within a single surgeon ’s practice. (Source: The Journal of Arthroplasty)
Source: The Journal of Arthroplasty - October 5, 2019 Category: Orthopaedics Authors: Benjamin H. Dalkin, Luke R. Sampson, Wendy M. Novicoff, James A. Browne Source Type: research

Varus-Valgus Constraint in Primary Total Knee Arthroplasty: A Short-Term Solution but Will It Last?
Prostheses with varus-valgus constraint (VVC) are increasingly utilized in primary total knee arthroplasty (TKA) to address coronal malalignment and instability though little is known regarding the association between added constraint and aseptic loosening. We sought to systematically review the literature for reports of VVC in primary TKA and meta-analyze clinical results and implant survival. (Source: The Journal of Arthroplasty)
Source: The Journal of Arthroplasty - October 5, 2019 Category: Orthopaedics Authors: Robert J. Avino, David C. Landy, Connor A. King, John M. Martell Source Type: research

Mid-Term Survivorship of a Novel Constrained Acetabular Device
Recurrent instability after total hip arthroplasty is a difficult complication. In certain cases, a constrained acetabular device is needed to address these issues. The purpose of this study is to report the midterm outcomes and survivorship of a single novel constrained liner device. (Source: The Journal of Arthroplasty)
Source: The Journal of Arthroplasty - October 5, 2019 Category: Orthopaedics Authors: David A. Crawford, Joanne B. Adams, Kenneth W. Brown, Michael J. Morris, Keith R. Berend, Adolph V. Lombardi Source Type: research

Fate of the retained acetabular component during revision total hip replacement: A meta-analysis and systematic review
The aim of this meta-analysis and systematic review was to estimate re-revision rates due to aseptic loosening of retained acetabular components after revision total hip replacement. (Source: The Journal of Arthroplasty)
Source: The Journal of Arthroplasty - October 4, 2019 Category: Orthopaedics Authors: Muhammad Hanif, Wang Chongyan, Lim Chin Tat, Syed Shahid Noor Source Type: research

Prospective Evaluation of the Posterior Tissue Envelope and Anterior Capsule after Anterior Total Hip Arthroplasty
Femoral exposure for direct anterior approach (DAA) total hip arthroplasty (THA) invariably requires posterior soft tissue releases. Released posterior structures cannot be repaired. The purpose of this study was to describe the frequency and anatomical consequences of DAA THA posterior soft tissue releases and to compare the appearance of the anterior capsule between a group of patients who had capsulotomy and repair versus capsulectomy. (Source: The Journal of Arthroplasty)
Source: The Journal of Arthroplasty - October 4, 2019 Category: Orthopaedics Authors: Alexander S. McLawhorn, Alexander B. Christ, Rachelle Morgenstern, Alissa Burge, Michael M. Alexiades, Edwin P. Su Source Type: research

The Influence of Obesity on Hip Pain, Function, and Satisfaction Ten Years following Total Hip Arthroplasty.
The prevalence of obesity is rising, and increasing numbers of joint Arthroplasty surgeries are being performed on obese patients. Concern exists that obesity increases surgical risk, however its impact on postoperative function following Total Hip Arthroplasty is inconsistently affirmed and less understood. A paucity exists in the literature pertaining long term objective functional measures. We investigate the impact of obesity on hip pain, function and satisfaction 10 years following Total Hip Arthroplasty. (Source: The Journal of Arthroplasty)
Source: The Journal of Arthroplasty - October 4, 2019 Category: Orthopaedics Authors: Samantha Haebich, Peter Mark, Riaz JK. Khan, Daniel Fick, Craig Brownlee, James Wimhurst Source Type: research

Outcomes of Same Day Discharge after Total Hip Arthroplasty in the Medicare Population
There is an increasing utilization of same day discharge total hip arthroplasty (SDD THA). As the Center for Medicare and Medicaid (CMS) considers removing THA from the inpatient only list, there is likely to be a significant increase in the number of Medicare patients undergoing SDD THA. Thus, there is a need to report on outcomes of SDD THA in this population. (Source: The Journal of Arthroplasty)
Source: The Journal of Arthroplasty - October 1, 2019 Category: Orthopaedics Authors: Oren I. Feder, Katherine Lygrisse, Lorraine Hultzer, Ran Schwarzkopf, Joseph Bosco, Roy I. Davidovitch Source Type: research

Treatment Outcomes and Attrition in Gram Negative Periprosthetic Joint Infection
While the prevailing belief is that PJI caused by Gram negative (GN) organisms confers a poorer prognosis than Gram positive (GP) cases, the current literature is sparse and inconsistent. The purpose of this study was to compare the treatment outcomes for GN PJI versus GP PJI and Gram mixed (GM) PJI. (Source: The Journal of Arthroplasty)
Source: The Journal of Arthroplasty - October 1, 2019 Category: Orthopaedics Authors: Irene Kalbian, Karan Goswami, Timothy L. Tan, Nathan John, Carol Foltz, Javad Parvizi, William Arnold Source Type: research

No Difference in Force Required for Intraprosthetic Dislocation of Mixed Manufacturer vs Same Manufacturer Dual Mobility Articulations
To avoid the morbidity of removing well-fixed implants during revision surgery, the off-label practice of mixing femoral heads with dual mobility (DM) polyethylene liners from different manufacturers is commonly performed. The resistance to intraprosthetic dislocation, when the inner prosthetic head disengages from the polyethylene bearing, between mixed and same manufacturer constructs remains unknown. (Source: The Journal of Arthroplasty)
Source: The Journal of Arthroplasty - September 30, 2019 Category: Orthopaedics Authors: Leonard T. Buller, Lisa Torres, Elexis C. Baral, Timothy M. Wright, Michael P. Ast Source Type: research

No Difference in Force Required for Intraprosthetic Dislocation of Mixed Manufacturer Versus Same Manufacturer Dual Mobility Articulations
To avoid the morbidity of removing well-fixed implants during revision surgery, the off-label practice of mixing femoral heads with dual mobility (DM) polyethylene liners from different manufacturers is commonly performed. The resistance to intraprosthetic dislocation (IPD), when the inner prosthetic head disengages from the polyethylene bearing, between mixed and same manufacturer constructs remains unknown. (Source: The Journal of Arthroplasty)
Source: The Journal of Arthroplasty - September 30, 2019 Category: Orthopaedics Authors: Leonard T. Buller, Lisa Torres, Elexis Baral, Timothy Wright, Michael Ast Source Type: research

The Impact of Coronal Alignment on Revision in Medial Fixed-Bearing Unicompartmental Knee Arthroplasty
This study compared the post-operative mechanical alignment of well-functioning UKAs against two groups of failed UKAs, including revisions for progression of lateral compartment osteoarthritis ( “Progression”) and revisions for aseptic loosening or subsidence (“Loosening”). (Source: The Journal of Arthroplasty)
Source: The Journal of Arthroplasty - September 28, 2019 Category: Orthopaedics Authors: Sean E. Slaven, John P. Cody, Robert A. Sershon, Henry Ho, Robert H. Hopper, Kevin B. Fricka Source Type: research

Perception of a natural joint after total knee arthroplasty
Assessing patients ’ functional outcomes following total knee arthroplasty (TKA) with traditional scoring systems is limited by their ceiling effects. Patient’s joint perception (PJP) questionnaire of the reconstructed joint is also of significant interest. Forgotten Joint Score (FJS) was created as a more discrim inating option. The actual score constituting a “forgotten joint” has not yet been defined. The primary objective of this study was to compare the PJP and the FJS in TKA patients to determine the FJS score that corresponds to the patient’s perception of a natural joint. (Source: The ...
Source: The Journal of Arthroplasty - September 27, 2019 Category: Orthopaedics Authors: David Eichler, Yann Beaulieu, Janie Barry, Vincent Mass é, Pascal-André Vendittoli Source Type: research

Dual Mobility for Monoblock Metal-on-Metal Revision – Is It Safe?
This study investigates the results of DM conversion of monoblock-MoM THA compared to formal acetabular revision. (Source: The Journal of Arthroplasty)
Source: The Journal of Arthroplasty - September 26, 2019 Category: Orthopaedics Authors: Nicholas D. Colacchio, Clint J. Wooten, John R. Martin, John L. Masonis, Thomas K. Fehring Source Type: research

Assessment of Early Gait Recovery after Anterior Approach Compared to Posterior Approach Total Hip Arthroplasty: A Smartphone Accelerometer based study
This study compares anterior and posterior approach gait and patient reported Hip Osteoarthritis Outcome scores (HOOS) in the early phases of recovery. (Source: The Journal of Arthroplasty)
Source: The Journal of Arthroplasty - September 26, 2019 Category: Orthopaedics Authors: Nelms NJ, Birch C, Halsey DH, Blankstein M, McGinnis RS, B.D. Beynnon Source Type: research

A Nationwide Analysis on the Impact of Schizophrenia Following Primary Total Knee Arthroplasty: A Matched-Control Analysis of 49,176 Medicare Patients
Schizophrenia is defined as having auditory hallucinations, disorganized thinking, with negative symptoms lasting longer than six months duration. The influence of schizophrenia on total knee arthroplasty (TKA) is limited in the literature. Therefore, the purpose of this study was to investigate whether patients with schizophrenia undergoing primary TKA have: 1) longer in-hospital length of stay (LOS); 2) higher readmission rates; 3) higher medical complications; 4) higher implant-related complications; and 5) higher costs of care compared to controls. (Source: The Journal of Arthroplasty)
Source: The Journal of Arthroplasty - September 26, 2019 Category: Orthopaedics Authors: Rushabh M. Vakharia, Karim G. Sabeh, Nipun Sodhi, Michael A. Mont, Martin W. Roche, Victor H. Hernandez Source Type: research

Who will benefit from kinematically aligned total knee arthroplasty? Perspectives on patient-reported outcome measures
This study aimed to explore preoperative characteristics of patients who were suitable for and benefited from KA-TKA, based on the assessment of patient-reported outcome measures (PROMs). (Source: The Journal of Arthroplasty)
Source: The Journal of Arthroplasty - September 26, 2019 Category: Orthopaedics Authors: Yasuo Niki, Takeo Nagura, Shu Kobayashi, Kazuhiko Udagawa, Kengo Harato Source Type: research