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    1762 results match your criteria Acta Orthopaedica [Journal]

    1 OF 36

    Lessons learnt from early failure of a patient trial with a polymer-on-polymer resurfacing hip arthroplasty.
    Acta Orthop 2017 Sep 21:1-7. Epub 2017 Sep 21.
    b Department of Orthopedics , Radboud University Hospital , Nijmegen.
    Background and purpose - Hip resurfacing (HR) is a treatment option promoted for hip arthritis in young and active patients. However, adverse reactions to metal are a concern and the search for non-metallic bearing options proceeds. We present the first clinical study performed in patients using a newly developed hydrophilic polymer-on-polymer hip resurfacing device. Read More

    Increased risk of aseptic loosening for 43,525 rotating-platform vs. fixed-bearing total knee replacements.
    Acta Orthop 2017 Sep 20:1-8. Epub 2017 Sep 20.
    a Norwegian Arthroplasty Register, Department of Orthopaedic Surgery , Haukeland University Hospital , Bergen.
    Background and purpose - Given similar functional outcomes with mobile and fixed bearings, a difference in survivorship may favor either. This study investigated the risk of aseptic loosening for the most used subtypes of mobile-bearing rotating-platform knees, in Norway and Australia. Patients and methods - Primary TKRs reported to the Norwegian and Australian joint registries, between 2003 and 2014, were analyzed with aseptic loosening as primary end-point and all revisions as secondary end-point. Read More

    What is the best treatment for displaced Salter-Harris II physeal fractures of the distal tibia?
    Acta Orthop 2017 Sep 19:1-5. Epub 2017 Sep 19.
    b Division of Orthopaedic Surgery , Severance Children's Hospital , Yonsei University College of Medicine , Seoul , Korea.
    Background and purpose - The optimal treatment of displaced Salter-Harris (SH) II fractures of the distal tibia is controversial. We compared the outcomes of operative and nonoperative treatment of SH II distal tibial fractures with residual gap of >3 mm. Factors that may be associated with the incidence of premature physeal closure (PPC) were analyzed. Read More

    High failure rate after internal fixation and beneficial outcome after arthroplasty in treatment of displaced femoral neck fractures in patients between 55 and 70 years.
    Acta Orthop 2017 Sep 15:1-6. Epub 2017 Sep 15.
    a Department of Orthopaedic Surgery , Akershus University Hospital , Lørenskog , Norway.
    Background and purpose - The treatment of patients between 55 and 70 years with displaced intracapsular femoral neck fracture remains controversial. We compared internal fixation (IF), bipolar hemiarthroplasty (HA) and total hip arthroplasty (THA) in terms of mortality, reoperations and patient-reported outcome by using data from the Norwegian Hip Fracture Register. Patients and methods - We included 2,713 patients treated between 2005 and 2012. Read More

    Defining a core outcome set for adolescent and young adult patients with a spinal deformity.
    Acta Orthop 2017 Sep 15:1-7. Epub 2017 Sep 15.
    a Department of Orthopedic Surgery , Radboud University Medical Center , Nijmegen , the Netherlands.
    Background and purpose - Routine outcome measurement has been shown to improve performance in several fields of healthcare. National spine surgery registries have been initiated in 5 Nordic countries. However, there is no agreement on which outcomes are essential to measure for adolescent and young adult patients with a spinal deformity. Read More

    Shining dead bone-cause for cautious interpretation of [(18)F]NaF PET scans.
    Acta Orthop 2017 Sep 15:1-4. Epub 2017 Sep 15.
    a Orthopaedics, Department of Clinical and Experimental Medicine and Department of Medical and Health Sciences , Linköping University , Linköping.
    Background and purpose - [(18)F]Fluoride ([(18)F]NaF) PET scan is frequently used for estimation of bone healing rate and extent in cases of bone allografting and fracture healing. Some authors claim that [(18)F]NaF uptake is a measure of osteoblastic activity, calcium metabolism, or bone turnover. Based on the known affinity of fluoride to hydroxyapatite, we challenged this view. Read More

    Bone and subcutaneous adipose tissue pharmacokinetics of vancomycin in total knee replacement patients.
    Acta Orthop 2017 Sep 15:1-6. Epub 2017 Sep 15.
    b Orthopaedic Research Unit , Aarhus University Hospital , Aarhus.
    Background and purpose - The incidence of orthopedic methicillin-resistant Staphylococcus aureus (MRSA) infections is increasing. Vancomycin may therefore play an increasingly important role in orthopedic perioperative antimicrobial prophylaxis. Studies investigating perioperative bone and soft tissue concentrations of vancomycin are sparse and challenged by a lack of appropriate methods. Read More

    Pelvic incidence and hip disorders.
    Acta Orthop 2017 Sep 15:1-5. Epub 2017 Sep 15.
    a Department of Physical and Rehabilitation Medicine.
    Background and purpose - The role of pelvic incidence in hip disorders is unclear. Therefore, we undertook a literature review to evaluate the evidence on that role. Methods - A search was carried out on MEDLINE, SCOPUS, CENTRAL, and CINAHL databases. Read More

    Decreased migration with locally administered bisphosphonate in cemented cup revisions using impaction bone grafting technique.
    Acta Orthop 2017 Sep 12:1-6. Epub 2017 Sep 12.
    a Lund University, Skane University Hospital , Department of Clinical Sciences Lund, Orthopedics , Lund , Sweden.
    Background and purpose - Impaction bone grafting (IBG) in revision hip surgery is an established method in restoring bone stock deficiencies. We hypothesized that local treatment of the morsellized allograft with a bisphosphonate in cemented revision would, in addition to increased bone density, also reduce the early migration of the cup as measured by radiostereometry (RSA). Patients and methods - 20 patients with aseptic cup loosening underwent revision using the IBG technique. Read More

    International variation in shoulder arthroplasty.
    Acta Orthop 2017 Sep 7:1-10. Epub 2017 Sep 7.
    b Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences , University of Oxford , Oxford , UK.
    Background and purpose - The number of shoulder registries increases. We assessed international trends in use of shoulder arthroplasty, and described the current state of procedure selection and outcome presentation as documented in national and regional joint registries. Methods - Published reports from 9 population-based shoulder arthroplasty registries (country/region: Norway, Sweden, New Zealand, Denmark, California, Australia, Emilia-Romagna, Germany, and United Kingdom) were analyzed. Read More

    Increasing age and tear size reduce rotator cuff repair healing rate at 1 year.
    Acta Orthop 2017 Sep 7:1-6. Epub 2017 Sep 7.
    a Botnar Research Centre , Nuffield Department of Orthopedics Rheumatology and Musculoskeletal Sciences , University of Oxford , Oxford , UK.
    Background and purpose - There is a need to understand the reasons why a high proportion of rotator cuff repairs fail to heal. Using data from a large randomized clinical trial, we evaluated age and tear size as risk factors for failure of rotator cuff repair. Patients and methods - Between 2007 and 2014, 65 surgeons from 47 hospitals in the National Health Service (NHS) recruited 447 patients with atraumatic rotator cuff tendon tears to the United Kingdom Rotator Cuff Trial (UKUFF) and 256 underwent rotator cuff repair. Read More

    Reduced length of uninterrupted institutional stay after implementing a fast-track protocol for primary total hip replacement.
    Acta Orthop 2017 Sep 7:1-7. Epub 2017 Sep 7.
    a Department of Orthopaedics and Traumatology , Central Finland Hospital , Jyväskylä.
    Background and purpose - Fast-track protocols have been successfully implemented in many hospitals as they have been shown to result in shorter length of stay (LOS) without compromising results. We evaluated the effect of fast-track implementation on the use of institutional care and results after total hip replacement (THR). Patients and methods - 3,193 THRs performed in 4 hospitals between 2009-2010 and 2012-2013 were identified from the Finnish Hospital Discharge Register and the Finnish Arthroplasty Register. Read More

    Biological treatment of the knee with platelet-rich plasma or bone marrow aspirate concentrates.
    Acta Orthop 2017 Aug 23:1-5. Epub 2017 Aug 23.
    b Steadman Philippon Research Institute , Vail , CO , USA.
    - Knee pathologies including focal cartilage injuries, osteoarthritis (OA), and ligament injuries are common. The poor regeneration and healing potential of cartilage has led to the search for other treatment modalities with improved healing capacity. Furthermore, with an increasing elderly population that desires to remain active, the burden of knee pathologies is expected to increase. Read More

    Long-term outcomes of over 8,000 medial Oxford Phase 3 Unicompartmental Knees-a systematic review.
    Acta Orthop 2017 Aug 23:1-7. Epub 2017 Aug 23.
    a Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences (NDORMS) , University of Oxford , Oxford , UK.
    Background and purpose - There is debate as to the relative merits of unicompartmental and total knee arthroplasty (UKA, TKA). Although the designer surgeons have achieved good results with the Oxford UKA there is concern over the reproducibility of these outcomes. Therefore, we evaluated published long-term outcomes of the Oxford Phase 3 UKA. Read More

    Good outcome scores and high satisfaction rate after primary total ankle replacement.
    Acta Orthop 2017 Aug 16:1-6. Epub 2017 Aug 16.
    a Departments of Orthopedics and Clinical Sciences , Lund University and Skåne University Hospital , Malmö.
    Background and purpose - Total ankle replacement (TAR) is gaining popularity for treatment of end-stage ankle arthritis. Large patient-centered outcome studies are, however, few. Here, we report data from the Swedish Ankle Registry. Read More

    Specific exercises for subacromial pain.
    Acta Orthop 2017 Aug 16:1-6. Epub 2017 Aug 16.
    a Institution for Clinical and Experimental Medicine, Division of Orthopaedics , Linköping University.
    Background and purpose - We have previously shown that specific exercises reduced the need for surgery in subacromial pain patients at 1-year follow-up. We have now investigated whether this result was maintained after 5 years and compared the outcomes of surgery and non-surgical treatment. Patients and methods - 97 patients were included in the previously reported randomized study of patients on a waiting list for surgery. Read More

    To what extent can soft-tissue releases improve hip displacement in cerebral palsy?
    Acta Orthop 2017 Aug 16:1-6. Epub 2017 Aug 16.
    a Department of Orthopaedic Surgery , Oslo University Hospital , Rikshospitalet , Oslo , Norway.
    Background and purpose - Hip displacement is frequent in nonambulatory children with cerebral palsy (CP) and treatment is controversial. This prospective study assesses the effectiveness of soft-tissue releases to treat hip subluxation, analyses prognostic factors for outcome, and identifies time to failure in hips with poor outcome. Patients and methods - 37 children (16 girls) with hip subluxation were recruited from the population-based screening program for children with CP in Norway. Read More

    A simple method for accurate rotational positioning of the femoral component in total knee arthroplasty.
    Acta Orthop 2017 Aug 11:1-7. Epub 2017 Aug 11.
    c Oslo Centre for Biostatistics and Epidemiology , Oslo University Hospital , Oslo , Norway.
    Background and purpose - There are many techniques for placing the femoral component in correct rotational alignment in total knee arthroplasty (TKA), but only a few have been tested against the supposed gold standard, rotation determined by postoperative computed tomography (CT). We evaluated the accuracy and variability of a new method, the clinical rotational axis (CRA) method, and assessed the association between the CRA and knee function. Patients and methods - The CRA is a line derived from clinical judgement of information from the surgical transepicondylar axis, the anteroposterior axis, and the posterior condylar line. Read More

    Reduced revision rate and maintained function after hip arthroplasty for femoral neck fractures after transition from posterolateral to direct lateral approach.
    Acta Orthop 2017 Aug 10:1-7. Epub 2017 Aug 10.
    a Department of Surgical and Perioperative Sciences , Umeå University , 90187 Umeå , Sweden.
    Background and purpose - The direct lateral (DL) approach to the hip for femoral neck fractures (FNF) has been shown to reduce the rate of dislocation and reoperations. We evaluate the effect of transition from the posterolateral (PL) to DL approach on reoperation and dislocation rates and patients' reported outcome. Patients and methods - In a prospective cohort study between 2012 and 2015, we enrolled 362 patients (median age 83 years, 70% women, mean follow-up 25 months) with a displaced FNF. Read More

    CD3+ lymphocytosis in the peri-implant membrane of 222 loosened joint endoprostheses depends on the tribological pairing.
    Acta Orthop 2017 Aug 8:1-7. Epub 2017 Aug 8.
    a Center for Histopathology and Molecular Pathology , Trier , Germany.
    Background and purpose - The most frequent cause of arthroplasty failure is aseptic loosening-often induced by particles. Abrasion material triggers inflammatory reactions with lymphocytic infiltration and the formation of synovial-like interface membranes (SLIM) in the bone-implant interface. We analyzed CD3 quantities in SLIM depending on articulating materials and possible influences of proven material allergies on CD3 quantities. Read More

    Middle-aged patients with an MRI-verified medial meniscal tear report symptoms commonly associated with knee osteoarthritis.
    Acta Orthop 2017 Aug 8:1-6. Epub 2017 Aug 8.
    a Institute of Sports Science and Clinical Biomechanics, University of Southern Denmark , Denmark.
    Background and purpose - No consensus exists on when to perform arthroscopic partial meniscectomy in patients with a degenerative meniscal tear. Since MRI and clinical tests are not accurate in detecting a symptomatic meniscal lesion, the patient's symptoms often play a large role when deciding when to perform surgery. We determined the prevalence and severity of self-reported knee symptoms in patients eligible for arthroscopic partial meniscectomy due to a degenerative meniscal tear. Read More

    Comparative efficacy and safety of anticoagulants for prevention of venous thromboembolism after hip and knee arthroplasty.
    Acta Orthop 2017 Aug 8:1-8. Epub 2017 Aug 8.
    a Department of Anesthesiology and Pain Medicine , Seoul National University Hospital , Seoul , Republic of Korea.
    Background and purpose - New oral anticoagulants have been developed to prevent venous thromboembolism (VTE) after knee or hip arthroplasty. Although there have been several network meta-analyses (NMA) to compare different regimens, an NMA including 2 different enoxaparin doses and edoxaban has not been performed. Methods - Standard NMA for fondaparinux, dabigatran, rivaroxaban, apixaban, edoxaban, and enoxaparin was performed. Read More

    Higher incidence rates than previously known in tenosynovial giant cell tumors.
    Acta Orthop 2017 Aug 8:1-7. Epub 2017 Aug 8.
    a Orthopedic Surgery , Leiden University Medical Center , Leiden.
    Background and purpose - Tenosynovial giant cell tumors (TGCT) are rare, benign tumors, arising in synovial lining of joints, tendon sheaths, or bursae. 2 types are distinguished: localized, either digits or extremity, and diffuse lesions. Current TGCT incidence is based on 1 single US-county study in 1980, with an incidence of 9 and 2 per million person-years in localized (including digits) and diffuse TGCT, respectively. Read More

    Risk factors associated with intraoperative complications in primary shoulder arthroplasty.
    Acta Orthop 2017 Aug 7:1-5. Epub 2017 Aug 7.
    a Department of Orthopaedics and Trauma , James Cook University Hospital , Middlesbrough , UK.
    Background and purpose - Increasing numbers of shoulder arthroplasty are performed internationally. The predictors of intraoperative complications when implanting primary shoulder replacements are unknown. We determined the incidence of intraoperative complications during primary shoulder arthroplasty using the National Joint Registry of England, Wales, Northern Ireland and the Isle of Man (NJR), and analyzed the associated risk factors for complications. Read More

    The Cox model is better than the Fine and Gray model when estimating relative revision risks from arthroplasty register data.
    Acta Orthop 2017 Aug 3:1-3. Epub 2017 Aug 3.
    a Department of Clinical Sciences Lund, Orthopedics , Lund University.
    Background and purpose - Analysis of the revision-free survival of knee and hip prostheses has traditionally been performed using Kaplan-Meier analysis and Cox regression. The competing risk problem that is related to patients who die during follow-up has recently been increasingly discussed, not least with regard to the problem of choosing a suitable statistical method for the analysis. We compared the results from analyses of Cox models and Fine and Gray models. Read More

    Excellent long-term results of the Müller acetabular reinforcement ring in primary cup revision.
    Acta Orthop 2017 Aug 3:1-8. Epub 2017 Aug 3.
    a Department of Orthopedics and Trauma Surgery , Kantonsspital Baselland , Liestal , Switzerland.
    Background and purpose - The original Müller acetabular reinforcement ring (ARR) was developed to be used for acetabular revisions with small cavitary and/or segmental defects or poor acetabular bone quality. Long-term data for this device are scarce. We therefore investigated long-term survival and radiographic outcome for revision total hip arthroplasty using the ARR. Read More

    Lack of evidence-the anti-stepwise introduction of metal-on-metal hip replacements.
    Acta Orthop 2017 Oct 18;88(5):478-483. Epub 2017 Jul 18.
    a Coxa Hospital for Joint Replacement , Tampere.
    Background and purpose - Orthopedics and especially joint replacement surgery have had more than their fair share of unsuccessful innovations that have violated widely endorsed principles for the introduction of new surgical innovations. We aimed to investigate (1) the trends in the use of the Birmingham Hip Resurfacing (BHR), the ASR hip resurfacing (ASR HRA) and the ASR XL total hip replacement (ASR XL THR) system with very different market approval processes and (2) whether their use was corroborated by clinical trials published in the peer-reviewed literature. Methods - The literature was searched for any clinical studies that reported outcomes of the BHR, ASR HRA and ASR XL THRs. Read More

    Comparison of metal ion concentrations and implant survival after total hip arthroplasty with metal-on-metal versus metal-on-polyethylene articulations.
    Acta Orthop 2017 Oct 12;88(5):490-495. Epub 2017 Jul 12.
    a Department of Molecular Medicine and Surgery, Section of Orthopaedics and Sports Medicine , Karolinska Institutet, Karolinska University Hospital , Stockholm.
    Background and purpose - Large metal-on-metal (MoM) articulations are associated with metal wear and corrosion, leading to increased metal ion concentrations and unacceptable revision rates. There are few comparative studies of 28-mm MoM articulations with conventional metal-on-polyethylene (MoP) couplings. We present a long-term follow-up of a randomized controlled trial comparing MoM versus MoP 28-mm articulations, focused on metal ions and implant survival. Read More

    Recall and patient perceptions of hip precautions 6 weeks after total hip arthroplasty.
    Acta Orthop 2017 Oct 12;88(5):496-499. Epub 2017 Jul 12.
    a Musculoskeletal Research Unit, School of Clinical Sciences, University of Bristol , Bristol , UK.
    Background and purpose - There is a lack of evidence to support the role of hip precautions in preventing dislocation following total hip arthroplasty (THA). We report an exploratory study which assesses recall, adherence, and the impact of precautions on activities of daily living in the first 6 weeks postoperatively. Patients and methods - We designed a new questionnaire based on the education patients receive and refined by professionals within our multidisciplinary team. Read More

    Reduced risk of reoperation after treatment of femoral neck fractures with total hip arthroplasty.
    Acta Orthop 2017 Oct 10;88(5):500-504. Epub 2017 Jul 10.
    a Department of Orthopaedics , Lund University, Skåne University Hospital , Malmö.
    Background and purpose - Femoral neck fractures (FNFs) are commonly treated with some kind of arthroplasty, but evidence on whether to use hemiarthroplasty (HA) or total hip arthroplasty (THA) is lacking. HA reduces the risk of dislocation, but may lead to acetabular erosion. THA implies longer surgery and increased bleeding. Read More

    A link between osteomyelitis and IL1RN and IL1B polymorphisms-a study in patients from Northeast Brazil.
    Acta Orthop 2017 Oct 6;88(5):556-561. Epub 2017 Jul 6.
    a Universidade Federal do Ceará , Fortaleza , Ceará , Brasil.
    Background and purpose - Treatment failure of osteomyelitis can result from genetic susceptibility, highlighting polymorphisms of the interleukin-1 (IL-1) family members, central mediators of innate immunity and inflammation. Polymorphisms are DNA sequence variations that are common in the population (1% or more) and represent multiple forms of a single gene. We investigated the association of IL1RNVNTR (rs2234663) and IL1B-511C > T (rs16944) polymorphisms with osteomyelitis development in patients operated on because of bone trauma. Read More

    Artificial intelligence for analyzing orthopedic trauma radiographs.
    Acta Orthop 2017 Jul 6:1-6. Epub 2017 Jul 6.
    a Department of Clinical Sciences , Karolinska Institutet , Danderyd Hospital.
    Background and purpose - Recent advances in artificial intelligence (deep learning) have shown remarkable performance in classifying non-medical images, and the technology is believed to be the next technological revolution. So far it has never been applied in an orthopedic setting, and in this study we sought to determine the feasibility of using deep learning for skeletal radiographs. Methods - We extracted 256,000 wrist, hand, and ankle radiographs from Danderyd's Hospital and identified 4 classes: fracture, laterality, body part, and exam view. Read More

    Improved outcome after hip fracture surgery in Norway.
    Acta Orthop 2017 Oct 6;88(5):505-511. Epub 2017 Jul 6.
    a Norwegian Arthroplasty Register, Department of Orthopaedic Surgery , Haukeland University Hospital , Bergen.
    Background and purpose - The operative treatment of hip fractures in Norway has changed considerably during the last decade. We used data in the Norwegian Hip Fracture Register to investigate possible effects of these changes on reoperations and 1-year mortality. Patients and methods - 72,741 femoral neck (FFN) fractures and trochanteric fractures in patients 60 years or older were analyzed. Read More

    Is a long leg a risk for hip or knee osteoarthritis?
    Acta Orthop 2017 Oct 30;88(5):512-515. Epub 2017 Jun 30.
    b Orton Orthopaedic Hospital , Helsinki , Finland.
    Background and purpose - 7% of the asymptomatic population has leg-length inequality (LLI) greater than 12 mm. It has been proposed that LLI of >5 mm can be associated with an increased risk of osteoarthritis (OA) of the knee and hip. We studied a possible association between LLI and OA of the knee and hip joint. Read More

    Inappropriate use of arthroscopic meniscal surgery in degenerative knee disease.
    Acta Orthop 2017 Oct 30;88(5):550-555. Epub 2017 Jun 30.
    a Institute of Primary Care, University of Zurich , Zurich , Switzerland.
    Background and purpose - Current evidence suggests that arthroscopic knee surgery has no added benefit compared with non-surgical management in degenerative meniscal disease. Yet in many countries, arthroscopic partial meniscectomy (APM) remains among the most frequently performed surgeries. This study quantifies and characterizes the dynamics of the current use of knee arthroscopies in Switzerland in a distinctively non-traumatic patient group. Read More

    Comorbidity does not predict long-term mortality after total hip arthroplasty.
    Acta Orthop 2017 Oct 28;88(5):472-477. Epub 2017 Jun 28.
    a Swedish Hip Arthroplasty Register, Center for Registers , Västra Götaland, Gothenburg.
    Background and purpose - In-hospital death following total hip arthroplasty (THA) is related to comorbidity. The long-term effect of comorbidity on all-cause mortality is, however, unknown for this group of patients and it was investigated in this study. Patients and methods - We used data from the Swedish Hip Arthroplasty Register, linked to the National Patient Register from the National Board of Health and Welfare, for patients operated on with THA in 1999-2012. Read More

    Preoperative methylprednisolone does not reduce loss of knee-extension strength after total knee arthroplastyA randomized, double-blind, placebo-controlled trial of 61 patients.
    Acta Orthop 2017 Oct 28;88(5):543-549. Epub 2017 Jun 28.
    a Section for Surgical Pathophysiology , Copenhagen University Hospital.
    Background and purpose - Patients undergoing total knee arthroplasty (TKA) face challenges related to postoperative reduction in knee-extension strength. We evaluated whether inhibition of the inflammatory response by a single preoperative dose of methylprednisolone (MP) reduces the pronounced loss of knee-extension strength at discharge after fast-track TKA. Patients and methods - 70 patients undergoing elective unilateral TKA were randomized (1:1) to preoperative intravenous (IV) MP 125 mg (group MP) or isotonic saline IV (group C). Read More

    Consistency in patient-reported outcomes after total hip replacement.
    Acta Orthop 2017 Oct 22;88(5):484-489. Epub 2017 Jun 22.
    a Swedish Hip Arthroplasty Register.
    Purpose - The primary objective in this study was to describe the patient-reported outcome measures (PROMs) of total hip replacement (THR) patients 6 years after index surgery. Second, we sought to analyze how the preoperative, 1- and 6-year outcomes were associated. Patients and methods - By assessing the Swedish Hip Arthroplasty Register (SHAR), 15,755 patients with complete follow-up were included in the study group. Read More

    Antibiotic prophylaxis is not indicated prior to dental procedures for prevention of periprosthetic joint infections.
    Acta Orthop 2017 Oct 22;88(5):568-574. Epub 2017 Jun 22.
    a Department of Oral Medicine , Academic Centre for Dentistry Amsterdam (ACTA).
    Background and purpose - To minimize the risk of hematogenous periprosthetic joint infection (HPJI), international and Dutch guidelines recommended antibiotic prophylaxis prior to dental procedures. Unclear definitions and contradictory recommendations in these guidelines have led to unnecessary antibiotic prescriptions. To formulate new guidelines, a joint committee of the Dutch Orthopaedic and Dental Societies conducted a systematic literature review to answer the following question: can antibiotic prophylaxis be recommended for patients (with joint prostheses) undergoing dental procedures in order to prevent dental HPJI? Methods - The Medline, Embase, and Cochrane databases were searched for randomized controlled trials (RCTs), reviews, and observational studies up to July 2015. Read More

    Continuous adductor canal block added to local infiltration analgesia (LIA) after total knee arthroplasty has no additional benefits on pain and ambulation on postoperative day 1 and 2 compared with LIA alone.
    Acta Orthop 2017 Oct 19;88(5):537-542. Epub 2017 Jun 19.
    a Department of Orthopedic Surgery , Akureyri Hospital , Akureyri , Iceland.
    Background and purpose - The additional effects of a continuous adductor canal block (ACB) compared with a single-dose local infiltration anesthesia (LIA) after total knee arthroplasty (TKA) has not been widely researched. Both methods have good effect individually. We hypothesized that a continuous ACB added to a single-dose LIA would lower pain scores while ambulating on postoperative day 1 (POD1) and postoperative day 2 (POD2). Read More

    Radiographic classifications in Perthes disease.
    Acta Orthop 2017 Oct 14;88(5):522-529. Epub 2017 Jun 14.
    a Department of Paediatric Orthopaedic Surgery , Oslo University Hospital.
    Background and purpose - Different radiographic classifications have been proposed for prediction of outcome in Perthes disease. We assessed whether the modified lateral pillar classification would provide more reliable interobserver agreement and prognostic value compared with the original lateral pillar classification and the Catterall classification. Patients and methods - 42 patients (38 boys) with Perthes disease were included in the interobserver study. Read More

    Classification systems for distal radius fractures.
    Acta Orthop 2017 Jun 14:1-7. Epub 2017 Jun 14.
    a Department of Orthopaedic and Trauma Surgery , JointResearch Onze Lieve Vrouwe Gasthuis , Amsterdam.
    Background and purpose - The reliability of conventional radiography when classifying distal radius fractures (DRF) is fair to moderate. We investigated whether reliability increases when additional computed tomography scans (CT) are used. Patients and methods - In this prospective study, we performed pre- and postreduction posterior-anterior and lateral radiographs of 51 patients presenting with a displaced DRF. Read More

    Preoperative psychosocial risk factors for poor outcomes at 1 and 5 years after total knee replacement.
    Acta Orthop 2017 Oct 31;88(5):530-536. Epub 2017 May 31.
    a Musculoskeletal Research Unit, School of Clinical Sciences , University of Bristol.
    Background and purpose - Psychosocial factors are important risk factors for poor outcomes in the first year after total knee replacement (TKR), however their impact on long-term outcomes is unclear. We aimed to identify preoperative psychosocial risk factors for poor outcomes at 1 year and 5 years after TKR. Patients and methods - 266 patients were recruited prior to TKR surgery. Read More

    Time trends in pediatric fracture incidence in Sweden during the period 1950-2006.
    Acta Orthop 2017 Aug 31;88(4):440-445. Epub 2017 May 31.
    a Clinical and Molecular Osteoporosis Research Unit, Department of Clinical Sciences and Orthopedics , Lund University, Skåne University Hospital , Malmö , Sweden.
    Background and purpose - Pediatric fracture incidence may not be stable. We describe recent pediatric fracture epidemiology and etiology and compare this to earlier data. Patients and methods - The city of Malmö (population 271,271 in 2005) in Sweden is served by 1 hospital. Read More

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