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Journal articleKennedy DL, Ridout D, Lysakova L, et al., 2021,
The association of sensory phenotype and concomitant mood, sleep and functional impairment with the outcome of carpal tunnel surgery
, BMC Musculoskeletal Disorders, Vol: 22, Pages: 1-19, ISSN: 1471-2474BackgroundUp to 25% of people who have had carpal tunnel release surgery (CTR) fail to report improvement; however, evidence for prognostic indicators in this surgical cohort is limited. To identify candidate prognostic factors, this study investigated the association of quantitative sensory testing (QST) derived sensory phenotype and attendant impairment with patient-reported surgical outcome.MethodsWith ethical approval and informed consent, this prospective observational longitudinal study recruited patients from two London hospitals. Multimodal phenotyping measures including quantitative sensory testing (QST), pain parameters, insomnia, pain-related worry, mood and function, were evaluated prior to; and at 3- and 6-months post-surgery. Pain in median nerve distribution with electrophysiologically confirmed conduction delay and DN4 score ≥ 4 was defined as neuropathic. Primary outcome was patient-rated change at 6 months, dichotomised as poor outcome; “worse” or “no change” and good outcome; “slightly better”, “much better” or “completely cured”.ResultsSeventy-six patients participated. Prior to surgery, substantial heterogeneity in established categories of somatosensory function was observed with 21% of participants categorised as having a healthy sensory phenotype; 29% with thermal hyperalgesia; 32% mechanical hyperalgesia and 18% sensory loss. Seventy six percent of participants were classified as having neuropathic pain, 33% with high levels of pain related worry and 64% with clinical insomnia. Observed differences in pain, sleep impairment, psychological factors and function, between sensory phenotypic groups, was not significant. At 3- and 6-months post-surgery there was significant improvement in all phenotyping measures with a moderate to large effect size. Thermal and mechanical measures of somatosensation improved (p < 0.001), as did functional ability
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Journal articleGarner A, Dandridge O, Amis A, et al., 2021,
Bi-unicondylar arthroplasty: a biomechanics and clinical outcomes study
, Bone & Joint Research, Vol: 10, Pages: 723-733, ISSN: 2046-3758Aims Bi-Unicondylar Arthroplasty (Bi-UKA) is a bone and anterior cruciate ligament (ACL) preserving alternative to Total Knee Arthroplasty (TKA) when the patellofemoral joint is preserved. The aim of this study is to investigate the clinical outcomes and biomechanics of Bi-UKA. Methods Bi-UKA subjects (N = 22) were measured on an instrumented treadmill, using standard gait metrics, at top walking speeds. Age, sex and BMI-matched healthy (N = 24) and primary TKA (N = 22) subjects formed control groups. TKA subjects with pre-operative patellofemoral or tricompartmental arthritis or ACL dysfunction were excluded. The Oxford Knee Score (OKS) and EuroQol-5D (EQ-5D) were compared. Bi-UKA then TKA were performed on eight fresh frozen cadaveric knees, to investigate knee extensor efficiency under controlled laboratory conditions, using a repeated measures study design. Results Bi-UKA walked 20% faster than TKA (Bi-UKA 6.70.9km/h, TKA 5.60.7km/h p<0.001), exhibiting nearer-normal vertical Ground Reaction Forces in maximum weight-acceptance and mid-stance, with longer step and stride lengths compared to TKA (p<0.05). Bi-UKAsubjects reported higher OKS (p=0.004) and EQ-5D (p<0.001). In vitro, Bi-UKA generated the same extensor moment as native knees at low flexion angles, whilst reduced extensor moment was measured following TKA (p<0.003). Conversely, at higher flexion angles, the extensor moment of TKA was normal. Over the full range, the extensor mechanism was more efficient following Bi-UKA than TKA (p<0.05). Conclusion Bi-UKA had more normal gait characteristics and improved patient reported outcomes, compared to matched TKA subjects. This can, in part, be explained by differences in extensor efficiency.
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Journal articleEdwards TC, Coombs AW, Szyszka B, et al., 2021,
Cognitive task analysis-based training in surgery: a meta-analysis
, BJS OPEN, Vol: 5, ISSN: 2474-9842- Cite
- Citations: 15
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Journal articleWedatilake T, Palmer A, Fernquest S, et al., 2021,
Association between hip joint impingement and lumbar disc disease in elite rowers
, BMJ Open Sport and Exercise Medicine, Vol: 7, Pages: 1-7, ISSN: 2055-7647Objectives Lumbar disc disease is a known cause of back pain. Increasingly it is thought that cam morphology of the hip may have a causal role in development of lumbar disc disease. The aim of this study was to describe the morphology of the hip and investigate the association of cam morphology with lumbar disc disease observed on MRI in elite rowers.Methods Cross-sectional observational study of 20 elite rowers (12 male, 8 female, mean age 24.45, SD 2.1). Assessment included clinical examination, questionnaires, 3T MRI scans of the hips and lumbar spine. Alpha angle of the hips and Pfirrmann score of lumbar discs were measured.Results 85% of rowers had a cam morphology in at least one hip. Alpha angle was greatest at the 1 o’clock position ((bone 70.9 (SD 16.9), cartilage 71.4 (16.3)). 95% of the group were noted to have labral tears, but only 50% of the group had history of groin pain. 85% of rowers had at least one disc with a Pfirrmann score of 3 or more and 95% had a history of back pain. A positive correlation was observed between the alpha angle and radiological degenerative disc disease (correlation coefficient=3.13, p=0.012). A negative correlation was observed between hip joint internal rotation and radiological degenerative disc disease (correlation coefficient=−2.60, p=0.018).Conclusions Rowers have a high prevalence of labral tears, cam morphology and lumbar disc disease. There is a possible association between cam morphology and radiological lumbar degenerative disc disease, however, further investigation is required.
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Journal articleKhatri C, Ward AE, Nepogodiev D, et al., 2021,
Outcomes after perioperative SARS-CoV-2 infection in patients with proximal femoral fractures: an international cohort study
, BMJ Open, Vol: 11, Pages: 1-10, ISSN: 2044-6055Objectives Studies have demonstrated high rates of mortality in people with proximal femoral fracture and SARS-CoV-2, but there is limited published data on the factors that influence mortality for clinicians to make informed treatment decisions. This study aims to report the 30-day mortality associated with perioperative infection of patients undergoing surgery for proximal femoral fractures and to examine the factors that influence mortality in a multivariate analysis.Setting Prospective, international, multicentre, observational cohort study.Participants Patients undergoing any operation for a proximal femoral fracture from 1 February to 30 April 2020 and with perioperative SARS-CoV-2 infection (either 7 days prior or 30-day postoperative).Primary outcome 30-day mortality. Multivariate modelling was performed to identify factors associated with 30-day mortality.Results This study reports included 1063 patients from 174 hospitals in 19 countries. Overall 30-day mortality was 29.4% (313/1063). In an adjusted model, 30-day mortality was associated with male gender (OR 2.29, 95% CI 1.68 to 3.13, p<0.001), age >80 years (OR 1.60, 95% CI 1.1 to 2.31, p=0.013), preoperative diagnosis of dementia (OR 1.57, 95% CI 1.15 to 2.16, p=0.005), kidney disease (OR 1.73, 95% CI 1.18 to 2.55, p=0.005) and congestive heart failure (OR 1.62, 95% CI 1.06 to 2.48, p=0.025). Mortality at 30 days was lower in patients with a preoperative diagnosis of SARS-CoV-2 (OR 0.6, 95% CI 0.6 (0.42 to 0.85), p=0.004). There was no difference in mortality in patients with an increase to delay in surgery (p=0.220) or type of anaesthetic given (p=0.787).Conclusions Patients undergoing surgery for a proximal femoral fracture with a perioperative infection of SARS-CoV-2 have a high rate of mortality. This study would support the need for providing these patients with individualised medical and anaesthetic care, including medical optimisation before t
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Journal articleBhattacharyya R, Al-Obaidi B, Sugand K, et al., 2021,
Evaluating the effectiveness of the Imperial Femoral Intramedullary Nailing Cognitive Task Analysis (IFINCTA) tool in a real-time simulation setting (Distributed Interactive Simulation): a randomized controlled trial
, INJURY-INTERNATIONAL JOURNAL OF THE CARE OF THE INJURED, Vol: 52, Pages: 3420-3426, ISSN: 0020-1383- Author Web Link
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- Citations: 3
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Journal articleHaywood M, Lovell L, Roe J, et al., 2021,
Perioperative instrumental swallowing evaluation in adult airway reconstruction: a retrospective observational cohort study
, Clinical Otolaryngology, Vol: 46, Pages: 1229-1236, ISSN: 1749-4478ObjectivesAirway reconstruction for laryngotracheal stenosis (LTS) encompasses several procedures. Dysphagia is a well-recognised sequela of LTS and airway surgery, however studies have employed mostly non-validated assessments post-operatively in small, heterogenous samples, perpetuating uncertainty around the contributions of LTS and its management to impaired deglutition. Consequently, considerable variation in LTS perioperative nutritional management exists. Our objective was to characterise baseline and post-operative dysphagia with instrumental assessment in an LTS cohort undergoing airway reconstruction and provide a gold-standard management framework for its management.Design, setting, participants and main outcome measuresWe performed a retrospective cohort study of adult airway reconstruction procedures from 2016-2020 at our quaternary centre. Patient background, LTS aetiology, procedure type, tube feeding duration, length of stay and serial Functional Oral Intake Scale (FOIS) and International Dysphagia Diet Standardisation Initiative (IDDSI) scores were noted. Baseline, post-operative day one and post-stent removal Fibreoptic Endoscopic Evaluation of Swallow (FEES) generated Penetration Aspiration Scale (PAS) scores.ResultsForty-four patients underwent forty-six reconstructions. Baseline incidence of penetration-aspiration was considerably higher than the general population and worsened in the immediate post-operative period, however FOIS and PAS scores generally returned to baseline by discharge. Post-operative FOIS correlated negatively with tracheostomy or airway stent placement. At discharge, 80% tolerated soft or normal diet and 93% were feeding tube independent.ConclusionsWe present the largest adult airway reconstruction cohort with instrumental swallow assessment perioperatively. LTS patients have a higher incidence of underlying dysphagia but swallowing tends to return to baseline with appropriate postoperative rehabilitation. Such practice may
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Journal articleGarner A, Dandridge O, Amis A, et al., 2021,
Partial and combined partial knee arthroplasty: greater anterior-posterior stability than posterior-cruciate retaining total knee arthroplasty
, The Journal of Arthroplasty, Vol: 36, Pages: 3765-3772.e4, ISSN: 0883-5403BackgroundLittle is known regarding anterior-posterior stability after anterior cruciate ligament–preserving partial (PKA) and combined partial knee arthroplasty (CPKA) compared to standard posterior cruciate–retaining total knee arthroplasty (TKA).MethodsThe anterior-posterior tibial translation of twenty-four cadaveric knees was measured, with optical tracking, while under 90N drawer with the knee flexed 0-90°. Knees were tested before and after PKA, CPKA (medial and lateral bicompartmental and bi-unicondylar), and then posterior cruciate–retaining TKA. The anterior-posterior tibial translations of the arthroplasty states, at each flexion angle, were compared to the native knee and each other with repeated measures analyses of variance and post-hoc t-tests.ResultsUnicompartmental and bicompartmental arthroplasty states had similar laxities to the native knee and to each other, with ≤1-mm differences throughout the flexion range (P ≥ .199). Bi-unicondylar arthroplasty resulted in 6- to 8-mm increase of anterior tibial translation at high flexion angles compared to the native knee (P ≤ .023 at 80-90°). Meanwhile, TKA exhibited increased laxity across all flexion angles, with increased anterior tibial translation of up to 18 ± 6 mm (P < .001) and increased posterior translation of up to 4 ± 2 mm (P < .001).ConclusionsIn a cadaveric study, anterior-posterior tibial translation did not differ from native laxity after PKA and CPKA. Posterior cruciate ligament–preserving TKA demonstrated increased laxity, particularly in anterior tibial translation.
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Journal articleUdeh-Momoh C, Watermeyer T, Sindi S, et al., 2021,
Health, lifestyle and psycho-social determinants of poor sleep quality during the Early Phase of the COVID-19 pandemic: a focus on UK older adults deemed clinically extremely vulnerable
, Frontiers in Public Health, Vol: 9, Pages: 1-11, ISSN: 2296-2565Background: Several studies have assessed the impact of COVID-19-relatedlockdownson sleep quality across global populations. However, no study to date has specifically assessed at-riskpopulations, particularly those at highest risk of complications from coronavirus infection deemed “clinically-extremely-vulnerable-(COVID-19CEV)” [as defined by Public Health England, 2020].Methods: In this cross-sectional study, we surveyed 5,558 adults aged ≥50 years (of whom 523 met criteria for COVID-19CEV) during the first pandemic wave that resulted in a nationwide-lockdown (April-June 2020) with assessments of sleep quality (an adapted sleep scale that captured multiple sleep indices before and during the lockdown), health/medical, lifestyle, psychosocial and socio demographic factors. We examined associations between these variablesand sleep quality;and explored interactions of COVID-19CEV status with significant predictors of poor sleep,to identify potential moderating factors. Results: 37% of participants reported poor sleep quality which was associated with younger age, female sex and multimorbidity. Significant associations with poor sleep included health/medical factors: COVID-19 CEV status, higher BMI, arthritis, pulmonary disease, and mental health disorders; and the following lifestyle and psychosocial factors: living alone, higher alcohol consumption, an unhealthy diet and higher depressive and anxiety symptoms. Moderators of the negative relationship between COVID-19 CEV status and good sleep quality were marital status, loneliness, anxiety and diet. Within this subgroup, less anxious and less lonely males, as well as females with healthier diets, reported better sleep. Conclusions: Sleep quality in older adults was compromised during the sudden unprecedented nation-wide lockdown due to distinct modifiable factors. An important contribution of our study is the assessment of a &ldquo
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Journal articleBraeuninger-Weimer K, Anjarwalla N, McGregor A, et al., 2021,
Improving consultations for persistent musculoskeletal low back pain in orthopaedic spine settings: an intervention development
, BMC Musculoskeletal Disorders, Vol: 22, Pages: 1-11, ISSN: 1471-2474BackgroundThere is a need to improve consultations between patients with persistent musculoskeletal low back pain and orthopaedic spine clinicians when surgery is not indicated. Poor communication and lack of education about self- management in these consultations have been shown to be associated with increased distress and higher subsequent health care seeking.AimTo develop a standardised intervention to improve spine care consultations for patients for whom surgery is not beneficial.MethodThe intervention was developed in six stages. The first three stages included: interviews with patients, an interactive workshop with clinicians from a mix of disciplines, and interviews with spine clinicians about their perspective of the recommendations, their perceived difficulties and potential improvements. Information from these stages was synthesised by an expert panel, creating a draft intervention structure and content. The main features of the intervention and the materials developed were then reviewed by patients and spine clinicians. Finally, the research team incorporated the recommended amendments to produce the intervention.ResultsIn total, 36 patients and 79 clinicians contributed to the development of the intervention. The final intervention includes three components: a pre-consultation letter with information suggesting that surgery is one possible intervention amongst many, introducing the staff, and alerting patients to bring with them a potted history of interventions tried previously. The intervention includes short online training sessions to improve clinicians’ communication skills, during the consultation, in reference to listening skills, validation of patients’ pain, and use of appropriate language. Clinicians are also supplied with a list of evidence-based sources for advice and further information to share with patients. Finally, post consultation, a follow up letter includes a short summary of the patients’ clinical journey, the res
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Journal articleNewington L, Alexander CM, Wells M, 2021,
The impacts of clinical academic activity: Qualitative interviews with healthcare managers and research-active nurses, midwives, allied health professionals and pharmacists
, BMJ Open, Vol: 11, ISSN: 2044-6055Objectives: To explore the perceived impacts of clinical academic activity among the professions outside medicine.Design: Qualitative semistructured interviews.Setting and participants: There were two groups of interviewees: Research-active nurses, midwives, allied health professionals, healthcare scientists, psychologists and pharmacists (NMAHPPs) and managers of these professions. All participants were employed in a single, multisite healthcare organisation in the UK.Analysis: Interview transcripts were analysed using the framework method to identify key themes, subthemes and areas of divergence.Results: Four themes were identified. The first, cultural shifts, described the perceived improvements in the approach to patient care and research culture that were associated with clinical academic activity. The second theme explored visibility and included the positive reputation that clinical academics were identified as bringing to the organisation in contrast with perceived levels of invisibility and inaccessibility of these roles. The third theme identified the impacts of the clinical academic pathways, including the precarity of these roles. The final theme explored making impact tangible, and described interviewees’ suggestions of possible methods to record and demonstrate impact.Conclusions: Perceived positive impacts of NMAHPP clinical academic activity focused on interlinked positive changes for patients and clinical teams. This included delivery of evidence-based healthcare, patient involvement in clinical decision making and improved staff recruitment and retention. However, the positive impacts of clinical academic activity often centred around individual clinicians and did not necessarily translate throughout the organisation. The current clinical academic pathway was identified as causing tension between the perceived value of clinical academic activity and the need to find sufficient staffing to cover clinical services.
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Journal articleCowell I, McGregor A, O'Sullivan P, et al., 2021,
Physiotherapists' approaches to patients' concerns in back pain consultations following a psychologically informed training program
, Qualitative Health Research, Vol: 13, Pages: 1-16, ISSN: 1049-7323Guidelines advocate a combined physical and psychological approach to managing non-specific chronic low back pain (NSCLBP), referred to as psychologically informed practice (PIP). PIP is underpinned by patient-centered principles and skilled communication. Evidence suggests that a physiotherapist-focused style of communication prevails in physiotherapy. There is a recognized need for observational research to identify specific communication practices in physiotherapy interactions. This observational study explored the interactional negotiation of agenda setting following a PIP training intervention, by identifying and describing how physiotherapists solicit and respond to the agenda of concerns that patients with NSCLBP bring to primary care initial encounters. The research setting was primary care. Nineteen initial physiotherapy consultations were video-recorded, transcribed, and analyzed using conversation analysis, a qualitative observational method. These data revealed a patient-focused style of communication where trained physiotherapists demonstrated a collaborative and responsive style of verbal and nonverbal communication to solicit, explore, and validate patients’ concerns.
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Journal articleMcGregor A, 2021,
Commentary: "Vowel Quality and Direction of Stress Shift in a Predictive Model Explaining the Varying Impact of Misplaced Word Stress: Evidence From English" and "Exploring the Complexity of the L2 Intonation System: An Acoustic and Eye-Tracking Study"
, FRONTIERS IN COMMUNICATION, Vol: 6 -
Journal articleTurner S, Jain S, Patel A, et al., 2021,
Visual Biofeedback Tool for Quantitative Pressure Monitoring in Lower-Limb Prosthetic Sockets
<jats:p>Obtaining a good socket fit is an iterative process dependent on the skill and experience of the prosthetist creating it, and requiring individualisation based on the size and shape. There is no standard measurement system used to aid prosthetic socket creation, despite the severe impacts on physical health and quality of life if one is ill-fitting. Pressure sensors embedded in a prosthetic socket were used to collect data at the socket-residuum interface. To choose an interpolation method, a 2D grid was used, with previously collected walking test pressure data, to simplify the sensor array with a border for extrapolation. Four multivariable interpolation methods were evaluated to create a colour map of the pressure data. Radial Basis Function interpolation was chosen as it produced a clear image with a graduated interpolation between data points and was used to create a colour map across the surface of a 3D prosthetic socket model. For the model to be accessible to clinical audiences, a desktop application was created using PyQt to view the model. The created application allowed for connection to the sensors via Bluetooth, with the pressure data updating the colour map on the 3D model in real-time. The created application shows the potential for a clinical product, however further development informed by feedback from rehabilitation clinicians and prosthesis users is required</jats:p>
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Journal articleRodriguez-Merchan EC, Davidson DJ, Liddle AD, 2021,
Recent Strategies to Combat Infections from Biofilm-Forming Bacteria on Orthopaedic Implants
, INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES, Vol: 22- Author Web Link
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- Citations: 56
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Journal articleMullins E, Sharma S, McGregor A, 2021,
Postnatal exercise interventions: a systematic review of adherence and effect
, BMJ Open, Vol: 11, Pages: 1-10, ISSN: 2044-6055Objective to evaluate adherence to and effect of postnatal physical activity (PA) interventions.Design systematic review of PA intervention randomised controlled trials in postnatal women. The initial search was carried out in September 2018, and updated in January 2021.Data sources Embase, MEDLINE, and Cochrane Central Register of Controlled Trials (CENTRAL) databases, hand-searching references of included studies. The 25 identified studies included 1466 postnatal women in community and secondary care settings.Eligibility criteria studies were included if the PA interventions were commenced and assessed in the postnatal year. Data extraction and synthesis data was extracted using a pre-specified extraction template and assessed independently by two reviewers using Cochrane ROB 1 tool.Results 1413 records were screened for potential study inclusion, full-text review was performed on 146 articles, 25 studies were included. The primary outcome was adherence to PA intervention. The secondary outcomes were the effect of the PA interventions on the studies’ specified primary outcome. We compared effect on primary outcome for supervised and unsupervised exercise interventions. Studies were small, median N= 66 (20-130). PA interventions were highly variable, targets for PA per week ranged from 60 -275 minutes per week. LTFU was higher (14.5% vs 10%) and adherence to intervention was lower (73.6% vs. 86%) for unsupervised vs. supervised studies.Conclusions studies of PA interventions inconsistently reported adherence and LTFU. Where multiple studies evaluated PA as an outcome, they had inconsistent effects, with generally low study quality and high risk of bias. Agreement for effect between studies was evident for PA improving physical fitness and reducing fatigue. Three studies showed no adverse effect of physical activity on breast feeding. High-quality research reporting adherence and LTFU is needed into how and when to deliver postnatal PA interventions to benefi
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Journal articleBraeuninger-Weimer KL, Anjarwalla N, McGregor AH, et al., 2021,
Taking patients to the ice cream shop but telling them that they cannot have ice cream: a qualitative study of orthopaedic spine clinicians' perceptions of persistent low back pain consultations.
, BMJ Open, Vol: 11, Pages: 1-9, ISSN: 2044-6055OBJECTIVE: This study aimed to explore the perceptions of orthopaedic clinicians about consultations for people with persistent musculoskeletal low back pain (PMLBP) in which surgery is not recommended. Surgery is not recommended for the majority of PMLBP consulting in secondary care settings. SETTING: Secondary care sector in the UK. PARTICIPANTS: Semi-structured qualitative interviews were conducted with 24 orthopaedic team clinicians from 17 different hospitals in the UK and Ireland. Interviews explored clinicians' perceptions of the challenges in consultations where surgery is not indicated. Interviews were transcribed verbatim and analysed using thematic analysis. RESULTS: Two meta-themes, Difficulties and Enablers, each consisting of several subthemes were identified. Difficulties included challenges around the choice of appropriate terminology and labels for PMLBP, managing patients' expectations, working with mentally vulnerable patients and explaining imaging findings. Enablers included early management of expectations, use of routine imaging, triaging, access to direct referral elsewhere, including other non-surgical practitioners in the team, training to improve communication skills and understanding of psychological issues. CONCLUSION: The findings highlight clinicians' perceived need for concordance in messages delivered across the care pathway and training of orthopaedic clinicians to deliver effective reassurance and address patients' needs in circumstances where surgery is not indicated.
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Conference paperEdwards TC, Patel A, Szyszka B, et al., 2021,
The Impact of Using A Virtual Reality Surgical Curriculum to Train Scrub Practitioners in Complex Orthopaedic Surgery
, Publisher: OXFORD UNIV PRESS, ISSN: 0007-1323 -
Journal articleHenson DP, Edgar C, Ding Z, et al., 2021,
Understanding lower limb muscle volume adaptations to amputation.
, Journal of Biomechanics, Vol: 125, Pages: 1-8, ISSN: 0021-9290Amputation of a major limb, and the subsequent return to movement with a prosthesis, requires the development of compensatory strategies to account for the loss. Such strategies, over time, lead to regional muscle atrophy and hypertrophy through chronic under or overuse of muscles compared to uninjured individuals. The aim of this study was to quantify the lower limb muscle parameters of persons with transtibial and transfemoral amputations using high resolution MRI to ascertain muscle volume and to determine regression equations for predicting muscle volume using femur- and tibia-length, pelvic-width, height, and mass. Twelve persons with limb loss participated in this study and their data were compared to six matched control subjects. Subjects with unilateral transtibial amputation showed whole-limb muscle volume loss in the residual-limb, whereas minor volume changes in the intact limb were found, providing evidence for a compensation strategy that is dominated by the intact-limb. Subjects with bilateral-transfemoral amputations showed significant muscle volume increases in the short adductor muscles with an insertion not affected by the amputation, the hip flexors, and the gluteus medius, and significant volume decreases in the longer adductor muscles, rectus femoris, and hamstrings. This study presents a benchmark measure of muscle volume discrepancies in persons with limb-loss, and can be used to understand the compensation strategies of persons with limb-loss and the impact on muscle volume, thus enabling the development of optimised intervention protocols, conditioning therapies, surgical techniques, and prosthetic devices that promote and enhance functional capability within the population of persons with limb loss.
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Journal articleSalman D, Beaney T, Robb C, et al., 2021,
The impact of social restrictions during the COVID-19 pandemic on the physical activity levels of adults aged 50-92 years: a baseline survey of the CHARIOT COVID-19 Rapid Response prospective cohort study
, BMJ Open, Vol: 11, Pages: 1-12, ISSN: 2044-6055Objectives: Physical inactivity is more common in older adults, is associated with social isolation and loneliness, and contributes to increased morbidity and mortality. We examined the effect of social restrictions to reduce COVID-19 transmission in the UK (lockdown), on physical activity (PA) levels of older adults, and the social predictors of any change.Design: Baseline analysis of a survey-based prospective cohort study Setting: Adults enrolled in the Cognitive Health in Ageing Register for Investigational and Observational Trials (CHARIOT) cohort from General Practitioner (GP) practices in North West London were invited to participate from April to July 2020.Participants: 6,219 cognitively healthy adults aged 50 to 92 years completed the survey.Main outcome measures: Self-reported PA before and after the introduction of lockdown, as measured by Metabolic Equivalent of Task (MET) minutes. Associations of PA with demographic, lifestyle and social factors, mood and frailty.Results: Mean PA was significantly lower following the introduction of lockdown, from 3,519 MET minutes/week to 3,185 MET minutes/week (p<0.001). After adjustment for confounders and pre-lockdown PA, lower levels of PA after the introduction of lockdown were found in those who were over 85 years old (640 [95% CI: 246 to 1034] MET minutes/week less); were divorced or single (240 [95% CI: 120 to 360] MET minutes/week less); living alone (277 [95% CI: 152 to 402] MET minutes/week less); reported feeling lonely often (306 [95% CI: 60 to 552] MET minutes/week less); and showed symptoms of depression (1007 [95% CI: 1401 to 612] MET minutes/week less) compared to those aged 50-64 years, married, co-habiting, and not reporting loneliness or depression, respectively. Conclusions and Implications: Markers of social isolation, loneliness and depression were associated with lower PA following the introduction of lockdown in the UK. Targeted interventions to increase PA in these groups should be consid
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