The mechanical fixation of a cementless conical cup in cortical versus cancellous trapezial bone: an experimental study.

In a pig bone model mimicking the human trapezium, we assessed the cementless fixation of trapezial cups in cancellous and cortical bone. Thirty-two saddle-shaped pig forefoot bones were prepared for cup fixation. Conical Konos cups (Beznoska, Kladno, Czech Republic) size 9 mm or 10 mm diameter were impacted.

Assessment of knee kinematics with dynamic radiostereometry: Validation of an automated model-based method of analysis using bone models.

Radiostereometic analysis (RSA) is a precise method for the functional assessment of joint kinematics. Traditionally, the method is based on tracking of surgically implanted bone markers and analysis is user intensive. We propose an automated method of analysis based on models generated from computed tomography (CT) scans and digitally reconstructed radiographs.

Interprofessional versus uniprofessional dyad learning for medical students in a clinical setting.

Objectives: The aim of the present study was to explore and compare medical students' perceived learning outcomes when treating patients under supervision in two different learning settings: a uniprofessional or an interprofessional dyad.

Methods: The design of the study is a qualitative interview study. Data were collected from October 2016 to June 2017 via semi-structured group interviews performed at the end of the clinical placement in an orthopaedic outpatient clinic for medical students in the last semester of the curriculum.

Patients' experiences of being treated by an interprofessional student team compared with uniprofessional treatment by residents supported by nurses: a case study.

Clinical experience, preferably interprofessional, is an important part of health professionals' undergraduate training. In recent years, more and more patient treatment has been moving to outpatient clinics with research suggesting hat this shift is not compromising students' learning outcomes. The purpose of this study was to explore orthopedic outpatients' perceived experiences of being treated by an interprofessional student team consisting of one medical and one nursing student versus being treated by a resident doctor supported by nurses in a uniprofessional setup.

Joint replacement for trapeziometacarpal osteoarthritis: implants and outcomes.

For thumb carpometacarpal osteoarthritis, trapeziectomy provides generally good results with reduction of pain and restoration of thumb mobility, but shortening of the thumb may at least in theory lead to reduction in grip and pinch strength. Furthermore, instability of the base of the first metacarpal and contact with the scaphoid may occur regardless of the several described techniques with ligament reconstruction and tendon interposition. Thus, for years alternatives to trapeziectomy have been explored and reported with disputable success.

Pain Catastrophizing Scale as a predictor of low postoperative satisfaction after hand surgery.

Background: Psychological measures are used increasingly in outcome studies. The Pain Catastrophizing Scale is a 13-item questionnaire used to measure coping skills and negative feelings of pain. In the existing literature it is suggested that the Pain Catastrophizing Scale could be associated with the outcome following surgery.

Risk factors for limited improvement after total trapeziometacarpal joint arthroplasty.

Background: Trapeziometacarpal (TMC) osteoarthritis can be painful and cause disability for patients. Total joint replacement of the TMC joint provides a pseudo arthrosis with good restoration of the thumb motion and pain relief in most patients. But there is also a risk of no improvement following the operation.

Inferior stabilization of cementless compared with cemented dual-mobility cups in elderly osteoarthrosis patients: a randomized controlled radiostereometry study on 60 patients with 2 years' follow-up.

Background and purpose - Elderly patients may benefit from a dislocation low-risk dual-mobility (DM) articulation in total hip arthroplasty, but the best cup fixation method is unknown. We compared cup migration for cemented and cementless DM cups using radiostereometry.Patients and methods - In a patient-blinded randomized trial, 60 patients (33 female) with osteoarthritis were allocated to cemented (n = 30) or cementless (n = 30) Avantage DM cup fixation.

Higher preoperative pain catastrophizing increases the risk of low patient reported satisfaction after carpal tunnel release: a prospective study.

Background: Carpal tunnel syndrome is a common upper-limb nerve compression disease. Carpal tunnel syndrome can lead to several symptoms such as tingling or numbness, pain in the hand or wrist, and reduced grip strength. Based on demographic characteristics, patient reported outcome measures, and with special attention to pain catastrophizing, the purpose of this study was to identify risk factors for low patient-reported satisfaction following surgical treatment of idiopathic carpal tunnel syndrome.

The effect of remote ischaemic preconditioning on myocardial injury in emergency hip fracture surgery (PIXIE trial): phase II randomised clinical trial.

Objective: To investigate whether remote ischaemic preconditioning (RIPC) prevents myocardial injury in patients undergoing hip fracture surgery.

Design: Phase II, multicentre, randomised, observer blinded, clinical trial.

Setting: Three Danish university hospitals, 2015-17.

No effect of cognitive behavioral patient education for patients with pain catastrophizing before total knee arthroplasty: a randomized controlled trial.

Background and purpose - Pain catastrophizing contributes to acute and long-term pain after total knee arthroplasty (TKA) but currently there are only limited treatment options. This study investigates the effectiveness of patient education in pain coping among patients with moderate to high pain catastrophizing score before TKA. Secondary outcomes were physical function, quality of life, self-efficacy, and pain catastrophizing.

The Effect of Bone Quality on Tibial Component Migration in Medial Cemented Unicompartmental Knee Arthroplasty. A Prospective Cohort Study Using Dual X-Ray Absorptiometry and Radiostereometric Analysis.

Background: Periprosthetic bone mineral density (BMD) may influence implant fixation and subsequent loosening. Unicompartmental knee arthroplasty (UKA) restores normal knee kinematics and load distribution to the surrounding bone. We studied the influence of systemic and periprosthetic BMD of the proximal tibia on migration of the tibial component of cemented medial UKA.

Association between pain catastrophizing, physical function and pain at first visit in the outpatient knee clinic.

Background: Pain catastrophizing has been associated with pain severity and disability in patients with knee osteoarthritis (OA). However, the literature is not consistent and other studies have failed to find this association. We examined the preoperative association between pain catastrophizing and physical function and pain, as well as the correlation between radiographic OA and physical symptoms and knee arthroplasty (KA).

The association between pain catastrophizing, physical function and pain in a cohort of patients undergoing knee arthroplasty.

Background: Pain catastrophizing contributes to acute and long-term pain after knee arthroplasty (KA), but the association between pain catastrophizing and physical function is not clear. We examined the association between preoperative pain catastrophizing and physical function one year after surgery, as well as differences in physical function, pain and general health in two groups of patients with high and low preoperative pain catastrophizing score.

Methods: We included 615 patients scheduled for KA between March 2011 and December 2013.

Equal tibial component fixation of a mobile-bearing and fixed-bearing medial unicompartmental knee arthroplasty: a randomized controlled RSA study with 2-year follow-up.

Background and purpose - Differences in stress distribution in a mobile-bearing and fixed-bearing unicompartmental knee arthroplasty (UKA) design might lead to a difference in fixation of the tibial component. We compared tibial component migration of a mobile-bearing (MB) UKA and a fixed-bearing (FB) UKA using radiostereometric analysis.Patients and methods - In a randomized, patient-blinded clinical trial 62 patients received either the MB Oxford UKA or the FB Sigma UKA.

Delay in surgery, risk of hospital-treated infections and the prognostic impact of comorbidity in hip fracture patients. A Danish nationwide cohort study, 2005-2016.

We examined the association between delay in surgery and hospital-treated infections in hip fracture patients with and without known comorbidities. All hip fracture patients aged ≥65 years registered in the Danish Multidisciplinary Hip Fracture Registry from 2005 to 2016 were included (n=72,520). Delay in surgery was defined as the time in hours from admission to surgery and was divided into 3 groups (12, 24 and 48 hrs).

The effect of family-authored diaries on posttraumatic stress disorder in intensive care unit patients and their relatives: A randomised controlled trial (DRIP-study).

Background: Critical illness and mechanical ventilation may cause patients and their relatives to experience symptoms of posttraumatic stress, anxiety, and depression due to fragmentation of memories of their intensive care unit (ICU) stay. Intensive care diaries authored by nurses may help patients and relatives process the experience and reduce psychological problems after hospital discharge; however, as patients particularly appreciate diary entries made by their relatives, involving relatives in authoring the diary could prove beneficial.

Objectives: The objective of this study was to explore the effect of a diary authored by a close relative for a critically ill patient.

Intensive care unit diaries: Developing a shared story strengthens relationships between critically ill patients and their relatives: A hermeneutic-phenomenological study.

Background: After discharge from the intensive care unit, patients and relatives struggle to rebuild their lives while suffering from fatigue and distress. Intensive care unit diaries written by relatives are a novel approach that may help relatives and patients process the critical illness experience together.

Objectives: To explore patients' and relatives' perceptions and use of a diary written by relatives for the critically ill patient.

Structure and content of diaries written by close relatives for intensive care unit patients: A narrative approach (DRIP study).

Aim: To investigate structure and content of a nurse prompted diary written by relatives for intensive care unit (ICU) patients.

Design: A narrative analysis of ICU diaries.

Methods: From September 2015-August 2016, 12 diaries authored by 12 relatives for 12 ICU patients were sampled at 3-4 months post-ICU discharge.

Impact of preadmission anti-inflammatory drug use on the risk of RBC transfusion in elderly hip fracture patients: a Danish nationwide cohort study, 2005-2016.

Background: Do prescription drugs with anti-inflammatory properties such as nonsteroidal anti-inflammatory drugs (NSAIDs), corticosteroids, and statins increase the risk of postoperative bleeding measured with RBC transfusion in elderly hip fracture surgery patients?

Study Design And Methods: Using the Danish Multidisciplinary Hip Fracture Database, 74,791 patients aged 65 years or older with surgery-treated hip fracture were identified during 2005-2016, and their use of NSAIDs, corticosteroids, and statins was ascertained. For each drug, patients were categorized as nonusers (no prescription ≤365 days prior to surgery), former users (one prescription 91-365 days), and current users (one prescription ≤90 days). Information on surgical treatment, transfusion, other medication and comorbidities were collected using Danish nationwide registries.

Low dislocation rate of Saturne/Avantage dual-mobility THA after displaced femoral neck fracture: a cohort study of 966 hips with a minimum 1.6-year follow-up.

Introduction: Dislocation is a serious and common complication and a great concern with the use of total hip arthroplasty (THA) when treating displaced femoral neck fracture (FNF). Dual-mobility (DM) THA might reduce the dislocation risk. We aim to report the dislocation and revision rate of primary DM THA in patients with displaced FNF.

The lateral joint space width can be measured reliably with Telos valgus stress radiography in medial knee osteoarthritis.

Objective: To examine the reproducibility of valgus stress radiographs with the Telos stress device for assessment of lateral compartment degenerative changes in patients with medial osteoarthritis of the knee.

Materials And Methods: A prospective reliability study was performed. Seventy-nine patients (80 knees) were included, and standardized valgus stress radiographs were obtained using the Telos stress device.

Emotions and clinical learning in an interprofessional outpatient clinic: a focused ethnographic study.

During the last decade, there has been a growing recognition that emotions can be of critical importance for students' learning and cognitive development. The aim of this study was to investigate the self-reported and the observed relationship of: activity-, outcome-, epistemic-, and social emotions' role in students' learning in a clinical interprofessional context. We conducted a focused ethnography study of medical and nursing students' clinical placement in an interprofessional orthopaedic outpatient clinic where the students performed consultations with patients, together.

The effect of diaries written by relatives for intensive care patients on posttraumatic stress (DRIP study): protocol for a randomized controlled trial and mixed methods study.

Background: Critically ill patients and their relatives have complex needs for support during their stay in the intensive care unit (ICU) and the post-ICU rehabilitation period. Diaries written by nurses have proven beneficial for patients and relatives, preventing post-traumatic stress, anxiety and depression and helping patients and families find meaning. Actively involving relatives in writing a diary for critically ill patients is a new approach to helping relatives and patients cope; however, research is limited.

Higher UHMWPE wear-rate in cementless compared with cemented cups with the Saturne® Dual-Mobility acetabular system.

Introduction: Dual mobility (DM) total hip arthroplasty (THA) may reduce dislocation risk, but might increase the risk of high polyethylene (PE) wear due to double wearing surfaces.

Methods: 127 patients (97 female) with 129 hips operated with THA after displaced femoral neck fracture FNF between 2005 and 2011, were seen for a cross-sectional clinical follow-up. Acetabular components were Saturne® DM cups with 28mm chrome-cobalt heads in UHMWPE.