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Medicine (Baltimore) 2019 Mar;98(12):e14927

The Second People's Hospital of Foshan (Affiliated Foshan Hospital of Southern Medical University), Foshan.

Background: High tibial osteotomy (HTO) is an effective surgical technique that can stop or inhibit the progression of unicompartmental knee osteoarthritis (KOA) to avoid or postpone the need for knee arthroplasty in patients. Whether opening-wedge high tibial osteotomy (OWHTO) is superior to closing-wedge high tibial osteotomy (CWHTO) in treating unicompartmental KOA remains controversial.

Methods: Databases (Cochrane Library, EMBASE, and PubMed) were searched from their establishment to July 1, 2018 for randomized controlled trials comparing the application of OWHTO to CWHTO in patients with unicompartmental KOA. Read More

BMC Musculoskelet Disord 2019 Mar 20;20(1):119. Epub 2019 Mar 20.

Department of Orthopedic Surgery, Gentofte Hospital, Kildegårdsvej 28, DK-2900, Hellerup, Denmark.

Background: In treatment of isolated medial unicondylar osteoarthritis of the knee, it is possible to choose between medial unicondylar knee arthroplasty (mUKA), or a total knee prosthesis (TKA). The demand for a blinded multicenter RCT with the comparison of mUKA and TKA has been increasing in recent years, to determine which prosthesis is better. Supporters of TKA suggest this treatment gives a more predictable and better result, whereas supporters of UKA suggest it is unnecessary to remove functional cartilage in other compartments. Read More

J Orthop Surg (Hong Kong) 2019 May-Aug;27(2):2309499019836286

Department of Orthopaedic Surgery, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand.

Unicompartmental knee arthroplasty (UKA) in anterior cruciate ligament deficiency (ACLD) has been debated for decades after the development of highly cross-linked polyethylene. This study aims to evaluate the effect of posterior tibial slope on restoring adequate knee stability and flexion after UKA in patients with ACLD. A total of 15 fresh cadaveric knees were divided into three groups: intact ACL, partial ACLD, and complete ACLD. Read More

BMC Rheumatol 2018 30;2. Epub 2018 Jan 30.

Department of Medicine, Weill Cornell Medical School, Division of Rheumatology Hospital for Special Surgery, 535 E 70th St, New York City, NY 10021 USA.

Total hip (THA) and total knee arthroplasty (TKA) are widely used, successful procedures for symptomatic end stage arthritis of the hips or knees, but patients with rheumatoid arthritis (RA), systemic lupus erythematosus (SLE), and spondyloarthritis (SPA) including ankylosing spondylitis (AS) and psoriatic arthritis (PSA) are at higher risk for adverse events after surgery. Utilization rates of THA and TKA remain high for patients with RA, and rates of arthroplasty have increased for patients with SLE and SPA. However, complications such as infection are increased for patients with SLE, RA, and SPA, most of whom are receiving potent immunosuppressant medications and glucocorticoids at the time of surgery. Read More

Eur J Orthop Surg Traumatol 2019 Mar 19. Epub 2019 Mar 19.

Princess Elizabeth Orthopaedic Centre, Royal Devon and Exeter Foundation Trust, Barrack Road, Exeter, EX2 5DW, UK.

Introduction: Our aim was to question the usefulness of a three-phase bone scan in the evaluation of pain in the knee region after TKR. Our hypothesis was that an abnormal investigation had a poor association with the presence of infection or loosening, and did not provide any additional diagnostic information above that already available through other standard investigations.

Methods: A retrospective study over a 24-month period was performed comprising 118 patients investigated with a TPBS. Read More

Knee 2019 Mar 15. Epub 2019 Mar 15.

West Suffolk Hospital, Bury St Edmunds, Suffolk IP33 2QZ, United Kingdom. Electronic address:

Background: The Physica ZUK is a fixed bearing unicompartmental knee replacement. The purpose of this prospective cohort study was to determine the mid-term clinical outcomes and survivorship of the Physica ZUK.

Methods: From 2005 to 2017 a total of 466 Physica ZUK prostheses were implanted in 398 patients by a single surgeon. Read More

Acta Orthop Belg 2018 Dec;84(4):415-422

The increasing number of younger patients with total hip arthroplasty and total knee arthroplasty sets higher demands on the postoperative quality of life. When it comes to athletic activity, recommendations and guidelines for sports remain unclear. We have reviewed published literature to determine the extent to which patients resume their athletic activities postoperatively, and what would be the best choice. Read More

Musculoskelet Surg 2019 Mar 16. Epub 2019 Mar 16.

Clinica Ortopedica - Ospedale Policlinico San Martino, Largo Rosanna Benzi 10, 16132, Genoa, GE, Italy.

Revision total knee arthroplasty (rTKA) is increasing of relevance in orthopaedic surgeon daily practice and this trend is likely to continue in the years ahead. The aim of this systematic review of English literature is to summarize and compare indications, complications, clinical and radiological results of metaphyseal cones and sleeves in management of bone loss in rTKA. Retrospective or prospective studies with at least 1 year of follow-up (FU) were included. Read More

Gait Posture 2019 Mar 8;70:179-184. Epub 2019 Mar 8.

Rutgers, The State University of New Jersey, School of Health Professions, Department of Rehabilitation and Movement Sciences, Physical Therapy Program North, 65 Bergen Street - Office 714A, Newark, NJ, 07107, USA.

Background: Although unilateral symptoms and unilateral total knee arthroplasty (TKA) are common, many patients have bilateral radiographic osteoarthritis (OA). Because the contralateral (non-operated) limb is often used as a comparison for clinical and biomechanical outcomes, it is important to know if the presence of OA influences movement patterns in either limb.

Research Question: The purpose of this study was to compare bilateral sagittal plane biomechanics between subjects with and without contralateral knee OA after unilateral TKA. Read More

Orthop Traumatol Surg Res 2019 Mar 13. Epub 2019 Mar 13.

York Hospital NHS Foundation Trust, Wiggington Road, York, YO31 8HE, United Kingdom.

Introduction: Heparin-induced thrombocytopenia (HIT) is a potentially life-threatening condition associated with heparin administration. Many orthopaedic units routinely prescribe low-molecular-weight heparins as thromboprophylaxis after hip and knee arthroplasty.

Hypothesis: We postulated that routine platelet monitoring following heparin administration is of no clinical benefit. Read More

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi 2019 Mar;33(3):377-381

Department of Orthopaedics, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200127,

Objective: To summarize the current research progress about influence of patellofemoral osteoarthritis on clinical outcome of unicompartmental knee arthroplasty (UKA).

Methods: The recent related literature was extensively reviewed and summarized, including pros and cons to regard the patellofemoral osteoarthritis as the contraindication.

Results: Previous studies regarded patellofemoral osteoarthritis as the contraindication of UKA. Read More

Knee Surg Sports Traumatol Arthrosc 2019 Mar 13. Epub 2019 Mar 13.

Department of Orthopaedics, Sahlgrenska University Hospital, Sahlgrenska Academy, Gothenburg University, Gothenburg, Sweden.

Bull Hosp Jt Dis (2013) 2019 Mar;77(1):45-52

The number of total knee arthroplasties performed in the United States is growing, and a leading cause of failure is postoperative knee instability from suboptimal coronal or sagittal balancing. This article reviews native knee anatomy as well as several guiding principles of total knee arthroplasty such as limb axis, femoral referencing, and implant constraint. Next, techniques that can be used by the surgeon to achieve ideal sagittal balance and coronal balance are discussed in detail. Read More

HSS J 2019 Feb 1;15(1):27-30. Epub 2018 Oct 1.

Department of Orthopaedic Surgery, Hospital for Special Surgery, 535 E. 70th Street, New York, NY 10021 USA.

Background: In the midst of the nationwide opioid epidemic, our institution began an effort to improve the education of opioid prescribers and disseminate procedure-specific guidelines for the number of opioid pills to prescribe post-operatively for total joint arthroplasty. The number of opioid pills suggested for total hip or knee replacement was 70 tablets.

Questions/purposes: We sought to evaluate the impact of the new institutional guideline on opioid prescribing practices, hypothesizing that it would lead to a decrease in the number of pills prescribed but an increase in patient call volume after discharge. Read More

J Arthroplasty 2019 Feb 21. Epub 2019 Feb 21.

Anderson Orthopaedic Research Institute, Inova Center for Joint Replacement at Inova Mount Vernon Hospital, Alexandria, VA.

Background: The optimal mode of fixation in total knee arthroplasty is a continuing subject of debate.

Methods: Previously, we reported 2-year results for this prospective, randomized trial. Knee Society Scores, Oxford scores, and pain visual analog scales were collected pre-operatively and post-operatively. Read More

Acta Orthop Traumatol Turc 2019 Mar 7. Epub 2019 Mar 7.

Acıbadem Mehmet Ali Aydınlar University, School of Medicine, Department of Orthopaedics and Traumatology, Istanbul, Turkey. Electronic address:

Objective: Total knee replacement (TKR) is a surgical treatment for final stage gonarthrosis. The lifespan of the prosthetic implants used in TKR surgery is a major interest for the orthopaedic research community.Previously, proper implant alignment of the implants has been advocated for longevity of the TKR surgery. Read More

Knee 2019 Mar 7. Epub 2019 Mar 7.

Sports Medicine Service, Department of Orthopaedic Surgery, Hospital for Special Surgery, Weill Medical College of Cornell University, New York, NY, United States of America. Electronic address:

Background: Outpatient surgery is an increasingly attractive option for patients undergoing procedures with established, acceptable risk profiles. Benefits of outpatient surgery include cost savings, enhanced patient experience and improved resource allocation at busy hospitals. The purpose of this study was to compare 90-day complication and readmission rates for patients undergoing unicompartmental knee arthroplasty (UKA) in the outpatient as opposed to the inpatient setting. Read More

J Arthroplasty 2019 Feb 10. Epub 2019 Feb 10.

Dell Medical School, University of Texas at Austin, Austin, TX.

Background: Perioperative periprosthetic femur fractures (PPFx) after total hip arthroplasty (THA) remain a leading cause of early stem failure and revision and are associated with high rates of morbidity and mortality. American Joint Replacement Registry (AJRR) data have been analyzed to determine the relationship of femoral stem fixation to PPFx revision.

Methods: All early (≤3 months from index arthroplasty) linked primary and revision hip arthroplasties reported to the AJRR between 2012 and 2017 were analyzed. Read More

Arch Orthop Trauma Surg 2019 Mar 8. Epub 2019 Mar 8.

Department of Orthopaedics, Zhujiang Hospital, Southern Medical University, 253 Industrial Avenue, Haizhu, Guangzhou, 510282, Guangdong, China.

Purpose: To assess the infection eradication rate when using two types of articulating spacers (prosthetic articulating spacers and all-cement articulating spacers) in two-stage revision of infected total knee arthroplasty (TKA).

Methods: We comprehensively searched PubMed, Embase, and the Cochrane Library databases and performed a systematic review and meta-analysis of retrospective comparative studies assessing two types of articulating spacers. A quality assessment of the included studies was performed following the STROBE statement. Read More

Eur J Orthop Surg Traumatol 2019 Mar 8. Epub 2019 Mar 8.

Joint Reconstruction Center, Gifu Municipal Hospital, Gifu, Japan.

Objective: We examined longitudinal changes in bone mineral density (BMD) around the femur for 5 years after total hip arthroplasty (THA) using cemented collarless polished double-tapered stem implantation and investigated the influence of BMD changes on radiological remodeling of the femur.

Materials And Methods: Sixty hips from 56 patients who underwent cemented THA with a collarless polished double-tapered stem were included. BMD was measured 2 weeks postoperatively (baseline), 3 months, 6 months, 1 year and annually thereafter until 5 years after surgery using dual-energy X-ray absorptiometry on the lumbar spine and proximal femur of the operated side according to the Gruen's zone classification. Read More

J Bone Joint Surg Am 2019 Mar;101(5):384-391

The Ohio State University Wexner Medical Center, Columbus, Ohio.

Background: Preoperative opioid use results in adverse outcomes and higher costs after elective surgery. However, duration thresholds for higher risk are not entirely known. Therefore, the purpose of our study was to determine the number and duration of preoperative opioid prescriptions in order to estimate the risk of postoperative adverse events after major joint replacement and lumbar fusion. Read More

Acta Chir Orthop Traumatol Cech 2019 ;86(1):33-38

Ortopedicko-traumatologické oddělení, Nemocnice Znojmo.

PURPOSE OF THE STUDY The authors in their study compare the knee joint kinematics in patients before and after medial unicompartmental knee arthroplasty (UKA) and in the group of healthy volunteers. This study aims to confirm or reject the hypothesis that UKA preserves the physiological knee joint kinematics. MATERIAL AND METHODS In the course of 2015 and 2016 a total of 20 patients with grade III-IV medial knee joint osteoarthritis and 20 healthy volunteers were included in the study. Read More

Acta Orthop Belg 2018 Sep;84(3):262-268

To investigate if progressive resistance training initiated one week after unicompartment knee arthroplasty affect knee pain and knee joint effusion. Data from the progressive resistance training intervention group of a previous randomized control trail study was analysed. Knee pain was measured using a visual analogue scale, and knee circumference was used as an indication of knee joint effusion. Read More

Acta Orthop Belg 2018 Sep;84(3):257-261

As it is mentioned in the literature, rates of complications and revision are higher in the obese compared to non-obese patients, although obesity does not a contraindication for unicompartmental knee arthroplasty and successful outcomes are achieved. However, there is not any study in the literature comparing the outcomes of fixed and mobile unicompartmental prostheses which are applied in the obese patients. Objective of this study was to compare outcomes of our obese patients who we applied fixed or mobile unicompartmental arthroplasty and followed up for 8 years and over. Read More

Acta Orthop Belg 2018 Sep;84(3):245-250

The use of rotating-hinge systems in total knee arthroplasty is most often seen in revision setting where excessive bone loss, ligamentous instability and/ or extensor mechanism dysfunction may necessitate an increased level of component constraint. However, this implant type is also being increasingly used in the primary setting. The aim of this study is to review literature concerning the use of third generation rotating-hinge devices focusing on the indications for primary cases. Read More

Acta Orthop Belg 2018 Sep;84(3):237-244

The purpose is to demonstrate that Bi-Unicom- partmental knee arthroplasty (Bi-Uni) can produce equivalent long-term outcomes to total knee arthroplasty (TKA) in patients with bicompartmental knee osteoarthritis involving both the medial and lateral tibio-femoral compartments. A total of 37 patients with bicompartmental tibio- femoral osteoarthritis of the knee treated between January 1999 and March 2005 underwent either Bi-Uni or TKA. Nineteen patients who underwent simultaneous implantation of 2 unicompartmental knee arthroplasties (UKA) were matched and compared with 18 patients who had undergone a computer assisted TKA. Read More

Arch Orthop Trauma Surg 2019 Mar 6. Epub 2019 Mar 6.

The Lundbeck Foundation Centre for Fast-track Hip and Knee Arthroplasty, Copenhagen University Hospital Rigshospitalet, Blegdamsvej 9, 2100, Copenhagen Ø, Denmark.

Introduction: Limited data exist on patient safety after simultaneous vs staged bilateral total knee arthroplasty (TKA) in matched groups. Hence, the aim of this study was to compare length of stay (LOS), in-hospital complications, 30-day readmissions and mortality after simultaneous and staged bilateral TKA in matched patients.

Patients And Methods: A retrospective case-control study of prospectively collected data in nine centres from February 2010 to November 2015. Read More

J Knee Surg 2019 Mar 5. Epub 2019 Mar 5.

Sydney Bone and Joint Clinic, Campbelltown, New South Wales, Australia.

There is a lack of clinical outcomes reported for the rotating bearing knee (RBK) total knee arthroplasty (TKA), which is a second-generation rotating platform knee, with purported benefits over earlier versions. The purpose of the study was to report the complications, short-term (minimum 1 year) patient-reported outcomes and long-term (up to 15 years) procedure survival in a consecutive series of patients receiving a rotating platform TKA (RBK) from an independent clinic. A retrospective analysis of a single-surgeon, private/public practice, with prospectively collected data in a subset of patients were performed. Read More

Orthop Surg 2019 02;11(1):75-81

Laboratory of Applied Biomechanics, Department of Biomedical Sciences for Health, University of Milan, Monza, Italy.

J Am Acad Orthop Surg 2019 Feb 27. Epub 2019 Feb 27.

From the Department of Surgical Research (Ms. Stone and Ms. Kelmer), Anne Arundel Medical Center, the Center for Joint Replacement (Dr. MacDonald and Dr. King), Anne Arundel Medical Center, and Anne Arundel Medical Center (Dr. Clance), Annapolis, MD.

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). Read More

J Biomech 2019 Mar 30;86:40-47. Epub 2019 Jan 30.

Department of Biomedical Engineering, University of California Davis, One Shields Avenue, Davis, CA 95616, United States.

Background: Loss of contact between the femoral and tibial implants following total knee arthroplasty (TKA) has been related to accelerated polyethylene wear and other complications. Two methods have been used to detect loss of contact in single-plane fluoroscopy, the condylar lift-off method and the separation method. The objectives were to assess the ability of each method to detect loss of contact. Read More

JAMA Netw Open 2019 Mar 1;2(3):e190168. Epub 2019 Mar 1.

Division of Pain Medicine, Department of Anesthesiology, Perioperative, and Pain Medicine, Stanford University, Palo Alto, California.

Importance: Acute postoperative pain is associated with the development of persistent postsurgical pain, but it is unclear which aspect is most estimable.

Objective: To identify patient clusters based on acute pain trajectories, preoperative psychosocial characteristics associated with the high-risk cluster, and the best acute pain predictor of remote outcomes.

Design, Setting, And Participants: A secondary analysis of the Stanford Accelerated Recovery Trial randomized, double-blind clinical trial was conducted at a single-center, tertiary, referral teaching hospital. Read More

Medicine (Baltimore) 2019 Mar;98(9):e14764

Medical College of Yangzhou University, Yangzhou University, Yangzhou, Jiangsu Province, China.

Background: To assess the effectiveness and safety of intravenous aminocaproic acid for blood management after total knee and hip arthroplasty.

Methods: Electronic databases: PubMed (1950.1-2018. Read More

Medicine (Baltimore) 2019 Mar;98(9):e14539

Department of Osteoarthropathy, The WenDeng Osteopath Hospital, Weihai, China.

Background: Prophylactic anticoagulant therapy is recommended to reduce the risk of venous thromboembolism (VTE) after total hip or knee arthroplasty, and has become the standard of care. Rivaroxaban is a novel oral medication that directly inhibits factor Xa for the prevention and treatment of thromboembolic conditions.

Method: A meta-analysis of randomized controlled trials (RCTs) was performed to determine the efficacy and safety of rivaroxaban after total hip arthroplasty (THA) and total knee arthroplasty (TKA) surgery. Read More

Med Arch 2018 Dec;72(6):439-443

Neurology Clinic, University Clinical Center Sarajevo, Sarajevo, Bosnia and Herzegovina.

Introduction: Osteoarthritis (OA) is the most common joint disease in the world. At the end stage of the disease, usually when patients cannot handle the pain anymore, the knee replacement surgery is the most common and effective treatment to reduce pain and improve functionality. The effect of preoperative exercise (prehabilitation) for patients undergoing total knee arthroplasty (TKA) is still controversial. Read More

J Arthroplasty 2019 Jan 31. Epub 2019 Jan 31.

Department of Orthopedics, Icahn School of Medicine at Mount Sinai, New York, NY.

Background: With the advent of mandatory bundle payments for total joint arthroplasty (TJA), assessing patients' risk for increased 90-day complications and resource utilization is crucial. This study assesses the degree to which preoperative patient-reported outcomes predict 90-day complications, episode costs, and utilization in TJA patients.

Methods: All TJA cases in 2017 at 2 high-volume hospitals were queried. Read More

Bone Joint J 2019 Mar;101-B(3):340-347

Department of Orthopedic Surgery, University of Pennsylvania, Philadelphia, Pennsylvania, USA.

Aims: Adductor canal block (ACB) has emerged as an alternative to femoral nerve block (FNB) for analgesia after total knee arthroplasty (TKA). The optimal duration of maintenance of the ACB is still questionable. The purpose of this study was to compare the analgesic benefits and physiotherapy (PT) outcomes of single-shot ACB to two different regimens of infusion of the continuous ACB, 24-hour and 48-hour infusion. Read More

Bone Joint J 2019 Mar;101-B(3):331-339

Sport and Exercise Science, College of Healthcare Sciences, Division of Tropical Health & Medicine, James Cook University, Townsville, Australia.

Aims: The results of kinematic total knee arthroplasty (KTKA) have been reported in terms of limb and component alignment parameters but not in terms of gap laxities and differentials. In kinematic alignment (KA), balance should reflect the asymmetrical balance of the normal knee, not the classic rectangular flexion and extension gaps sought with gap-balanced mechanical axis total knee arthroplasty (MATKA). This paper aims to address the following questions: 1) what factors determine coronal joint congruence as measured on standing radiographs?; 2) is flexion gap asymmetry produced with KA?; 3) does lateral flexion gap laxity affect outcomes?; 4) is lateral flexion gap laxity associated with lateral extension gap laxity?; and 5) can consistent ligament balance be produced without releases?

Patients And Methods: A total of 192 KTKAs completed by a single surgeon using a computer-assisted technique were followed for a mean of 3. Read More

Zhongguo Gu Shang 2019 Jan;32(1):60-63

Department of Joint Surgery, Ningbo No.2 Hospital, Ningbo 315000, Zhejiang, China.

Objective: To explore effect of early intermittently closing drainage tube on blood loss control after total knee arthroplasty.

Methods: Totally 60 total knee replacement patients were randomly divided into experimental group and control group according to the different drainage ways of postoperative from January 2014 to January 2015. There were 30 patients in experimental group, including 12 males and 18 females, aged from 58 to 76 years old with an average of (67. Read More

Clin Orthop Relat Res 2018 Oct 30. Epub 2018 Oct 30.

P. L. Lewis, S. E. Graves, Australian Orthopaedic Association National Joint Replacement Registry (AOANJRR), Adelaide, South Australia, Australia P. L. Lewis, Wakefield Orthopaedic Clinic, Adelaide, South Australia, Australia A. Cuthbert, South Australian Health and Medical Research Institute (SAHMRI), Adelaide, South Australia D. Parker, Sydney Orthopaedic Research Institute, Chatswood, New South Wales, Australia P. Myers, Brisbane Orthopaedic & Sports Medicine Centre, Spring Hill, Queensland, Australia.

Background: Patellofemoral replacements (PFRs) have a higher rate of revision than unicompartmental knee arthroplasty or TKA. However, there is little information regarding why PFRs are revised, the components used for these revisions, or the outcome of the revision procedure. Some contend that PFR is a bridging procedure that can easily be revised to a TKA with similar results as a primary TKA; however, others dispute this suggestion. Read More

Orthop Surg 2019 Feb 27;11(1):15-24. Epub 2019 Feb 27.

Department of Orthopaedic Surgery, Xiangya Hospital of Central South University, Changsha, China.

This article reviews the recent updates in revision of total knee arthroplasty (RTKA). We reviewed the recent articles on RTKA in databases including PubMed, Google Scholar, and SCOPUS. Total knee arthroplasty (TKA) involves the replacement of all three compartments of the knee in surgery of the knee joint to restore capacity and function. Read More

JAMA 2019 02;321(8):762-772

Department of Health Care Policy, Harvard Medical School, Boston, Massachusetts.

Importance: Overlapping surgery, in which more than 1 procedure performed by the same primary surgeon is scheduled so the start time of one procedure overlaps with the end time of another, is of concern because of potential adverse outcomes.

Objective: To determine the association between overlapping surgery and mortality, complications, and length of surgery.

Design, Setting, And Participants: Retrospective cohort study of 66 430 operations in patients aged 18 to 90 years undergoing total knee or hip arthroplasty; spine surgery; coronary artery bypass graft (CABG) surgery; and craniotomy at 8 centers between January 1, 2010, and May 31, 2018. Read More

Arch Bone Jt Surg 2019 Jan;7(1):75-78

Joint Reconstruction Research Center, Imam Khomeini Hospital, Tehran University of Medical Sciences, Tehran, Iran.

Joint replacement is currently on the rise with a high community burden. A registry was designed to evaluate the costs, possible complications, and rate of revisions as well as finding the most effective techniques, risk factors associated with poor results, indications for revision surgeries, and also demographic evaluation of patients undergoing joint replacement surgery in Iran. Read More

J Arthroplasty 2019 Feb 2. Epub 2019 Feb 2.

Department of Healthcare Policy and Research, Weill Cornell Medical College, New York, NY.

Background: Registries and administrative databases have unique and complementary strengths in device epidemiologic studies. We sought to develop, validate, and assess a sequential algorithm using indirect identifiers to link registry and administrative data.

Methods: Hip and knee arthroplasty procedures performed at 6 New York State hospitals enrolled in American Joint Replacement Registry in 2014 were included. Read More

J Orthop Surg (Hong Kong) 2019 Jan-Apr;27(1):2309499019832440

2 Consultant Anaesthesia, Fortis Escorts Hospital, Jaipur, Rajasthan, India.

Background:: Bilateral total knee arthroplasty is associated with significant blood loss. Postoperative anaemia retards patients recovery, and blood transfusion increases the risk for major complications including infection. While strategies like hypotensive anaesthesia, tranexamic acid, bone wax and so on are useful to conserve blood, navigation has also shown to decrease blood loss and transfusion in unilateral knee arthroplasty. Read More

J Arthroplasty 2018 Dec 25. Epub 2018 Dec 25.

Department of Orthopaedic Surgery, Lenox Hill Hospital of Northwell Health, New York, NY.

Background: Enhanced postoperative care pathways have shifted total knee arthroplasty (TKA) to outpatient and short-stay settings, placing greater emphasis on predischarge outcomes. In this study, we report prespecified secondary and tertiary end points of the PILLAR study within 24 hours after TKA in patients receiving local infiltration analgesia (LIA) with or without liposomal bupivacaine (LB).

Methods: Patients with knee osteoarthritis were randomized 1:1 to receive LIA with LB 266 mg/20 mL admixed with bupivacaine HCl 0. Read More

Knee 2019 Feb 20. Epub 2019 Feb 20.

Clinique du Sport Paris V, 36, boulevard Saint Marcel, 75005 Paris, France; Institut de l'Appareil Locomoteur Nollet, 23, rue Brochant, 75013 Paris, France.

Background: Patellofemoral arthroplasty (PFA) is an alternative to a total knee arthroplasty (TKA) in patients with severe isolated patellofemoral osteoarthritis. The main goal of this study was to determine the revision rate of the Hermes™ (Ceraver) anatomical unconstrained PFA.

Methods: A retrospective single surgeon study was performed including all patients operated for PFA between 1997 and 2015. Read More

J Arthroplasty 2019 Jan 29. Epub 2019 Jan 29.

Department of Orthopaedic Surgery, Brigham and Women's Hospital, Boston, MA; Department of Orthopaedic Surgery, Harvard Medical School, Boston, MA.

Background: Approximately 75% of the US population over 65 years has prediabetes or diabetes. Despite current evidence for the efficacy of carbohydrate restriction in managing blood glucose, this practice has not been implemented as part of routine perioperative blood sugar management. We hypothesize that a carbohydrate reduced hospital diet (CRD) of 135 g/d may improve blood sugar levels following total knee arthroplasty (TKA) compared to a non-carbohydrate reduced hospital diet (NCRD). Read More