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    1778 results match your criteria Acta Orthopaedica [Journal]

    1 OF 36

    High occurrence of osteoarthritic histopathological features unaccounted for by traditional scoring systems in lateral femoral condyles from total knee arthroplasty patients with varus alignment.
    Acta Orthop 2017 Nov 9:1-7. Epub 2017 Nov 9.
    a Department of Biomedical Engineering , Lerner Research Institute, Cleveland Clinic , Cleveland , USA.
    Background and purpose - A better understanding of the patterns and variation in initiation and progression of osteoarthritis (OA) in the knee may influence the design of therapies to prevent or slow disease progression. By studying cartilage from the human lateral femoral condyle (LFC), we aimed to: (1) assess specimen distribution into early, mild, moderate, and severe OA as per the established histopathological scoring systems (HHGS and OARSI); and (2) evaluate whether these 2 scoring systems provide sufficient tools for characterizing all the features and variation in patterns of OA. Patients and methods - 2 LFC osteochondral specimens (4 x 4 x 8 mm) were collected from 50 patients with idiopathic OA varus knee and radiographically preserved lateral compartment joint space undergoing total knee arthroplasty. Read More

    Good clinical and radiographic outcome of cementless metal metaphyseal sleeves in total knee arthroplasty.
    Acta Orthop 2017 Nov 6:1-5. Epub 2017 Nov 6.
    b Department of Orthopaedics , Karolinska University Hospital.
    Background and purpose - The number of revision total knee arthroplasties (TKA) is continuously increasing, leading to a growing need for reliable management of metaphyseal bone loss. We evaluated patients operated with a TKA using metal metaphyseal sleeves for bone defects with a minimum 5-year follow-up. Patients and methods - 37 patients had been operated on. Read More

    What is appropriate surveillance for metal-on-metal hip arthroplasty patients?
    Acta Orthop 2017 Nov 6:1-11. Epub 2017 Nov 6.
    a Nuffield Department of Orthopaedics , Rheumatology and Musculoskeletal Sciences University of Oxford, Nuffield Orthopaedic Centre , Oxford , UK ;
    The unexpected high revision rates of large-diameter (femoral head sizes of 36 mm or greater) metal-on-metal hip arthroplasties (MoMHAs) have led to worldwide regulatory authorities recommending regular surveillance, even for asymptomatic individuals. However, these recommendations are not evidence-based and are very costly. The rapidly evolving evidence base requires an update regarding the investigation and management of MoMHA patients. Read More

    Early aseptic loosening of a mobile-bearing total knee replacement.
    Acta Orthop 2017 Nov 6:1-7. Epub 2017 Nov 6.
    a Department of Clinical Medicine , University of Bergen , Norway.
    Background and purpose - Registry-based studies have reported an increased risk of aseptic tibial loosening for the cemented Low Contact Stress (LCS) total knee replacement compared with other cemented designs; however, the reasons for this have not been established. We made a retrieval analysis with the aim of identifying the failure mechanism. Patients and methods - We collected implants, cement, tissue, blood, and radiographs from 32 failed LCS Complete cases. Read More

    The association between cement type and the subsequent risk of revision surgery in primary total hip replacement.
    Acta Orthop 2017 Oct 26:1-7. Epub 2017 Oct 26.
    a Musculoskeletal Research Unit , School of Clinical Sciences, University of Bristol, Southmead Hospital , Bristol , UK.
    Background and purpose - To further improve the success of joint replacement surgery, attention needs to be paid to variations associated with improved or worsened outcomes. We investigated the association between the type of bone cement used and the risk of revision surgery after primary total hip replacement. Methods - We conducted a prospective study of data from the National Joint Registry for England and Wales between April 1, 2003 and December 31, 2013. Read More

    Perioperative adjuvant corticosteroids for postoperative analgesia in knee arthroplasty.
    Acta Orthop 2017 Oct 25:1-6. Epub 2017 Oct 25.
    a Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences (NDORMS) , University of Oxford , Oxford , UK.
    Background and purpose - Immediate postoperative pain management offered in knee arthroplasty is suboptimal in up to one-third of patients resulting in high opiate consumption and delayed discharge. In this meta-analysis we investigate the analgesic effect and safety of perioperative adjuvant corticosteroids in knee arthroplasty. Methods - Databases Medline, Embase, and Central were searched for randomized studies comparing the analgesic effect of adjuvant perioperative corticosteroids in knee arthroplasty. Read More

    Less periprosthetic bone loss following the anterolateral approach to the hip compared with the direct lateral approach.
    Acta Orthop 2017 Oct 17:1-6. Epub 2017 Oct 17.
    b Department of Orthopaedics , Oslo University Hospital , Ullevål.
    Background and purpose - The loss of bone mineral in the proximal femur following hip arthroplasty may increase the fracture risk around uncemented stems. We hypothesized that the surgical approach to the hip might influence bone mineral changes around the femoral stem in patients with a femoral neck fracture (FNF). Patients and methods - This was a pre-specified subgroup analysis (n = 51) of an ongoing randomized trial (n = 120) in patients with FNF. Read More

    Preaxial polydactyly of the foot.
    Acta Orthop 2017 Sep 26:1-6. Epub 2017 Sep 26.
    a Departments of Plastic and Reconstructive Surgery and Hand Surgery , Erasmus MC, University Medical Center , Rotterdam , the Netherlands.
    Background and purpose - Preaxial polydactyly of the foot is a rare malformation and clinicians are often unfamiliar with the associated malformations and syndromes. In order to give guidelines for diagnostics and referral to a clinical geneticist, we provide an overview of the presentation using a literature review and our own patient population. Patients and methods - The literature review was based on the Human Phenotype Ontology (HPO) project. Read More

    Marrow compartment contribution to cortical defect healing.
    Acta Orthop 2017 Sep 26:1-5. Epub 2017 Sep 26.
    a Orthopaedics, Department of Clinical and Experimental Medicine, Faculty of Health Sciences , Linköping University , Linköping , Sweden.
    Background and purpose - Healing of shaft fractures is commonly described as regards external callus. We wanted to clarify the role of the bone marrow compartment in the healing of stable shaft fractures. Patients and methods - A longitudinal furrow was milled along the longitudinal axis of the femoral shaft in mice. Read More

    The basic mobility status upon acute hospital discharge is an independent risk factor for mortality up to 5 years after hip fracture surgery.
    Acta Orthop 2017 Sep 26:1-6. Epub 2017 Sep 26.
    c Section for Surgical Pathophysiology , Rigshospitalet, Copenhagen University , Denmark.
    Background and purpose - Mortality rates following hip fracture (HF) surgery are high. We evaluated the influence of the basic mobility status on acute hospital discharge to 1- and 5-year mortality rates after HF. Patients and methods - 444 patients with HF ≥60 years (mean age 81 years, 77% women) being pre-fracture ambulatory and admitted from their own homes, were consecutively included in an in-hospital enhanced recovery program and followed for 5 years. Read More

    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 Dec 20;88(6):649-656. 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 Dec 15;88(6):612-618. 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 Dec 7;88(6):592-599. 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 Dec 7;88(6):606-611. 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 Dec 23;88(6):670-674. 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 Dec 16;88(6):675-680. 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 Dec 16;88(6):600-605. 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 Dec 16;88(6):695-700. 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 Dec 11;88(6):657-663. 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 Dec 10;88(6):627-633. 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 Dec 8;88(6):642-648. 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 Dec 8;88(6):664-669. 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 Dec 8;88(6):634-641. 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 Dec 8;88(6):688-694. 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 Dec 7;88(6):587-591. 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 Dec 3;88(6):578-580. 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 Dec 3;88(6):619-626. 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

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