Epidemiology of revision hip replacement surgery in the UK over the past 15 years-an analysis from the National Joint Registry.

OBJECTIVES: To investigate trends in the incidence rate and main indication for revision hip replacement (rHR) over the past 15 years in the UK. DESIGN: Repeated national cross-sectional study from 2006 to 2020. SETTING/PARTICIPANTS: rHR procedures were identified from the National Joint Registry for England, Wales, Northern Ireland, the Isle of Man and the States of Guernsey. Population statistics were obtained from the Office for National Statistics. MAIN OUTCOME MEASURES: Crude incidence rates of rHR. RESULTS: The incidence rate of rHR doubled from 11 per 100 000 adults in 2006 (95% CI 10.7 to 11.3) to a peak of 22 per 100 000 adults (95% CI 22 to 23) in 2012, before falling to 17 per 100 000 adults in 2019 (95% CI 16 to 17) (24.5% decrease from peak). The incidence rate of rHR reduced by 39% in 2020 compared with 2019 (during the COVID-19 pandemic). The most frequent indications for rHR between 2006 and 2019 were loosening/lysis (27.8%), unexplained pain (15.1%) and dislocation/instability (14.7%). There were incremental increases in the annual number and incidence rates of rHR for fracture, infection, dislocation/instability and a decrease in rHR for aseptic loosening/lysis. CONCLUSIONS: The incidence rate of rHR doubled from 2006 to 2012, likely due to high early failure rates of metal-on-metal hip replacements. The incidence of rHR then decreased by approximately 25% from 2012 to 2019, followed by a large decrease during the COVID-19 pandemic. The decrease in the number of rHR performed for aseptic loosening/lysis may reflect improved wear and implant longevity. Increased healthcare resource will be required to care for the increasing numbers of patients undergoing rHR for fracture and infection.

Tailored exercise management (TEMPO) versus usual care for people aged 80 years or older with hip/knee osteoarthritis: study protocol for a feasibility randomised controlled trial.

BACKGROUND: Exercise is recommended for all people with osteoarthritis. However, these recommendations are based on randomised clinical trials including people with an average age between 60 and 70 years, and these findings cannot reliably be generalised to people aged 80 years or older. Rapid loss of muscle occurs after 70 years of age, and older people are more likely to also have other health conditions that contribute to difficulties with daily activities and impact on their response to exercise. To improve care for people aged 80 or older with osteoarthritis, it is thought that a tailored exercise intervention targeting both osteoarthritis and any other health conditions they have, may be needed. The aim of this study will be to test if it is possible to conduct a randomised controlled trial (RCT) for people over 80 years of age with hip/knee osteoarthritis of a tailored exercise intervention. METHODS: A multicentre, parallel, 2-group, feasibility RCT with embedded qualitative study, conducted in ≥ 3 UK NHS physiotherapy outpatient services. Participants (n ≥ 50) with clinical knee and/or hip osteoarthritis and ≥ 1 comorbidity will be recruited by screening referrals to participating NHS physiotherapy outpatient services, via screening of general practice records and via identification of eligible individuals from a cohort study run by our research group. Participants will be randomised (computer-generated: 1:1) to receive either: a 12-week education and tailored exercise intervention (TEMPO); or usual care and written information. The primary feasibility objectives are to estimate: (1) ability to screen and recruit eligible participants; (2) retention of participants, measured by the proportion of participants who provide outcome data at 14-week follow-up. Secondary quantitative objectives are to estimate: (1) participant engagement assessed by physiotherapy session attendance and home exercise adherence; (2) sample size calculation for a definitive RCT. One-to-one semi-structured interviews will explore the experiences of trial participants and physiotherapists delivering the TEMPO programme. DISCUSSION: Progression criteria will be used to determine whether a definitive trial to evaluate the clinical and cost-effectiveness of the TEMPO programme is considered feasible with or without modifications to the intervention or trial design. TRIAL REGISTRATION: ISRCTN75983430. Registered 3/12/2021. https://www.isrctn.com/ISRCTN75983430.

Development and validation of a prediction model for self-reported mobility decline in community-dwelling older adults.

OBJECTIVES: The aim of this study is to develop and validate two models to predict 2-year risk of self-reported mobility decline among community-dwelling older adults. STUDY DESIGN AND SETTING: We used data from a prospective cohort study of people aged 65 years and over in England. Mobility status was assessed using the EQ-5D-5L mobility question. The models were based on the outcome: Model 1, any mobility decline at 2 years; Model 2, new onset of persistent mobility problems over 2 years. Least absolute shrinkage and selection operator logistic regression was used to select predictors. Model performance was assessed using C-statistics, calibration plot, Brier scores, and decision curve analyses. Models were internally validated using bootstrapping. RESULTS: Over 18% of participants who could walk reported mobility decline at year 2 (Model 1), and 7.1% with no mobility problems at baseline, reported new onset of mobility problems after 2 years (Model 2). Thirteen and 6 out of 31 variables were selected as predictors in Models 1 and 2, respectively. Models 1 and 2 had a C-statistic of 0.740 and 0.765 (optimism < 0.013), and Brier score = 0.136 and 0.069, respectively. CONCLUSION: Two prediction models for mobility decline were developed and internally validated. They are based on self-reported variables and could serve as simple assessments in primary care after external validation.

Predictors of Adherence to a Step Count Intervention Following Total Knee Replacement: An Exploratory Cohort Study.

OBJECTIVE: To explore the person-level predictors of adherence to a step count intervention following total knee replacement (TKR). DESIGN: Prospective cohort study, nested within the PATHway trial. METHODS: Participants who had recently undergone TKR were recruited from 3 rehabilitation hospitals in Sydney, Australia, for the main trial. Only data from participants who were randomized to the TKR intervention group were analyzed. Participants in the intervention group (n = 51) received a wearable tracker to monitor the number of steps taken per day. Step count adherence was objectively measured at 3 months as the number of steps completed divided by the number prescribed and multiplied by 100 to express adherence as a percentage. Participants were classified into 4 groups: withdrawal, low adherence (0%-79%), adherent (80%-100%), and >100% adherent. Ordinal logistic regression was used to identify which factors predicted adherence to the prescribed step count. RESULTS: Of the 51 participants enrolled, nine (18% of 51) withdrew from the study before 3 months. Half of participants were classified as >100% adherent (n = 24%, 47%). Ten were classified as low adherence (20%), and 8 participants were classified as adherent (16%). In the univariable model, lower age (OR 0.90; 95% CI 0.83-0.97), higher patient activation (OR 1.03; 95% CI 1.00-1.06), and higher technology self-efficacy (OR 1.03; 95% CI 1.00-1.06) were associated with higher adherence. After adjusting for age in the multivariable model, patient activation and technology self-efficacy were not significant. CONCLUSION: Younger age, higher patient activation, and higher technology self-efficacy were associated with higher adherence to a step count intervention following TKR in the univariable model. Patient activation and technology self-efficacy were not associated with higher adherence following adjustment for age. J Orthop Sports Phys Ther 2022;52(9):620-629. Epub: 9 July 2022. doi:10.2519/jospt.2022.11133.

Predictors and Measures of Adherence to Core Treatments for Osteoarthritis.

Adherence has been proposed as a major barrier to implementing and maintaining the benefits of osteoarthritis (OA) core treatments and is influenced by many factors. Although there are reasonable data to support factors influencing adherence to exercise/physical activity in knee/hip OA populations, there is less research examining alternative interventions, or in the hand OA population. This problem is complicated by the lack of gold-standard measurement of adherence for core osteoarthritis treatments. The predictors of treatment adherence are not well understood, and findings are contradictory. Strategies incorporating behavior change techniques should be implemented to improve and maintain long-term adherence.

The Clinical Effectiveness of a Physiotherapy Delivered Physical and Psychological Group Intervention for Older Adults With Neurogenic Claudication: The BOOST Randomized Controlled Trial.

BACKGROUND: Neurogenic claudication (NC) is a debilitating spinal condition affecting older adults' mobility and quality of life. METHODS: A randomized controlled trial of 438 participants evaluated the effectiveness of a physical and psychological group intervention (BOOST program) compared to physiotherapy assessment and tailored advice (best practice advice [BPA]) for older adults with NC. Participants were identified from spinal clinics (community and secondary care) and general practice records and randomized 2:1 to the BOOST program or BPA. The primary outcome was the Oswestry Disability Index (ODI) at 12 months. Data were also collected at 6 months. Other outcomes included ODI walking item, 6-minute walk test (6MWT), and falls. The primary analysis was intention-to-treat. RESULTS: The average age of participants was 74.9 years (standard deviation [SD] 6.0) and 57% (246/435) were female. There was no significant difference in ODI scores between treatment groups at 12 months (adjusted mean difference [MD]: -1.4 [95% confidence intervals (CI) -4.03, 1.17]), but, at 6 months, ODI scores favored the BOOST program (adjusted MD: -3.7 [95% CI -6.27, -1.06]). At 12 months, the BOOST program resulted in greater improvements in walking capacity (6MWT MD: 21.7m [95% CI 5.96, 37.38]) and ODI walking item (MD: -0.2 [95% CI -0.45, -0.01]) and reduced falls risk (odds ratio: 0.6 [95% CI 0.40, 0.98]) compared to BPA. No serious adverse events were related to either treatment. CONCLUSIONS: The BOOST program substantially improved mobility for older adults with NC. Future iterations of the program will consider ways to improve long-term pain-related disability. Clinical Trials Registration Number: ISRCTN12698674.

The Effect of Therapeutic Exercise Interventions on Physical and Psychosocial Outcomes in Adults Aged 80 Years and Older: A Systematic Review and Meta-Analysis.

This systematic review aimed to evaluate the effects of therapeutic exercise on physical and psychosocial outcomes in community-dwelling adults aged 80 years or older. Databases were searched from inception to July 8, 2020. Randomized controlled trials (RCTs) were screened by two reviewers who extracted data and assessed study quality. Sixteen RCTs (1,660 participants) were included. Compared to nonexercise controls there was no evidence of an effect of exercise on performance based (standardized mean differences: 0.58, 95% confidence interval: [-0.19, 1.36]; I2: 89%; six RCTs; 290 participants; very low-quality evidence) or self-reported physical function (standardized mean differences: 1.35, 95% confidence interval: [-0.78, 3.48]; I2: 96%; three RCTs; 280 participants; very low-quality evidence) at short-medium term follow-up. Four RCTs reporting psychosocial outcomes could not be combined in meta-analysis and reported varying results. Exercise appeared to reduce the risk of mortality during follow-up (risk ratio: 0.47, 95% confidence interval: [0.32, 0.70]; I2: 0.0%; six RCTs; 1,222 participants; low-quality evidence).

Risk Factors for Mobility Decline in Community-Dwelling Older Adults: A Systematic Literature Review.

Mobility is essential to maintaining independence for older adults. This systematic review aimed to summarize evidence about self-reported risk factors for self-reported mobility decline; and to provide an overview of published prognostic models for self-reported mobility decline among community-dwelling older adults. Databases were searched from inception to June 2, 2020. Studies were screened by two independent reviewers who extracted data and assessed study quality. Sixty-one studies (45,187 participants) were included, providing information on 107 risk factors. High-quality evidence and moderate/large effect sizes for the association with mobility decline were found for older age beyond 75 years, the presence of widespread pain, and mobility modifications. Moderate-high quality evidence and small effect sizes were found for a further 21 factors. Three model development studies demonstrated acceptable model performance, limited by high risk of bias. These findings should be considered in intervention development, and in developing a prediction instrument for practical application.

Musculoskeletal pain and loneliness, social support and social engagement among older adults: Analysis of the Oxford Pain, Activity and Lifestyle cohort.

BACKGROUND: Musculoskeletal (MSK) pain is common in older adults. Physical and psychological consequences of MSK pain have been established, but it is also important to consider the social impact. We aimed to estimate the association between MSK pain and loneliness, social support and social engagement. METHODS: We used baseline data from the Oxford Pain, Activity and Lifestyle study. Participants were community-dwelling adults aged 65 years or older from across England. Participants reported demographic information, MSK pain by body site, loneliness, social support and social engagement. We categorised pain by body regions affected (upper limb, lower limb and spinal). Widespread pain was defined as pain in all three regions. We used logistic regression models to estimate associations between distribution of pain and social factors, controlling for covariates. RESULTS: Of the 4977 participants analysed, 4193 (84.2%) reported any MSK pain, and one-quarter (n = 1298) reported widespread pain. Individuals reporting any pain were more likely to report loneliness (OR [odds ratio]: 1.62; 95% CI [confidence interval]: 1.32-1.97) or insufficient social support (OR: 1.54; 95% CI: 1.08-2.19) compared to those reporting no pain. Widespread pain had the strongest association with loneliness (OR: 1.94; 95% CI: 1.53-2.46) and insufficient social support (OR: 1.71; 95% CI: 1.14-2.54). Pain was not associated with social engagement. CONCLUSIONS: Older adults commonly report MSK pain, which is associated with loneliness and perceived insufficiency of social support. This finding highlights to clinicians and researchers the need to consider social implications of MSK pain in addition to physical and psychological consequences.

PARTNER: a service delivery model to implement optimal primary care management of people with knee osteoarthritis: description of development.

OBJECTIVE: Implementation strategies, such as new models of service delivery, are needed to address evidence practice gaps. This paper describes the process of developing and operationalising a new model of service delivery to implement recommended care for people with knee osteoarthritis (OA) in a primary care setting. METHODS: Three development stages occurred concurrently and iteratively. Each stage considered the healthcare context and was informed by stakeholder input. Stage 1 involved the design of a new model of service delivery (PARTNER). Stage 2 developed a behavioural change intervention targeting general practitioners (GPs) using the behavioural change wheel framework. In stage 3, the 'Care Support Team' component of the service delivery model was operationalised. RESULTS: The focus of PARTNER is to provide patients with education, exercise and/or weight loss advice, and facilitate effective self-management through behavioural change support. Stage 1 model design: based on clinical practice guidelines, known evidence practice gaps in current care, chronic disease management frameworks, input from stakeholders and the opportunities and constraints afforded by the Australian primary care context, we developed the PARTNER service-delivery model. The key components are: (1) an effective GP consultation and (2) follow-up and ongoing care provided remotely (telephone/email/online resources) by a 'Care Support Team'. Stage 2 GP behavioural change intervention: a multimodal behavioural change intervention was developed comprising a self-audit/feedback activity, online professional development and desktop software to provide decision support, patient information resources and a referral mechanism to the 'Care Support Team'. Stage 3 operationalising the 'care support team'-staff recruited and trained in evidence-based knee OA management and behavioural change methodology. CONCLUSION: The PARTNER model is the result of a comprehensive implementation strategy development process using evidence, behavioural change theory and intervention development guidelines. Technologies for scalable delivery were harnessed and new primary evidence was generated as part of the process.Trial registration number ACTRN12617001595303 (UTN U1111-1197-4809).

Effects of Covertly Measured Home Exercise Adherence on Patient Outcomes Among Older Adults With Chronic Knee Pain.

BACKGROUND: Assessment of home exercise adherence and the degree to which adherence influences changes in patient outcomes is limited by the use of self-reported measures. OBJECTIVES: To determine the relationship between adherence to a home strengthening program, covertly measured by accelerometers in ankle cuff weights, and changes in self-reported pain, physical function, and knee extensor strength among people with chronic knee pain. METHODS: This is a secondary analysis of data from a clinical measurement study in 54 adults, aged 45 years or older, with chronic knee pain who completed a 12-week, home-based quadriceps-strengthening program. A triaxial accelerometer was concealed in the ankle cuff weight used for exercises to assess exercise adherence. Associations between exercise adherence and changes in pain and function (measured using the Western Ontario and McMaster Universities Osteoarthritis Index) and peak isometric knee extensor strength were examined using mixed-effects and linear regression models and fractional polynomials. RESULTS: Exercise adherence declined from a median of 90% (interquartile range, 70%-100%) in weeks 0 to 2 to 65% (interquartile range, 25%-90%) in weeks 10 to 12. Significant improvements were observed in knee pain (mean change, -3.2 units; 95% confidence interval [CI]: -2.4, -3.9 units), function (mean change, -10.1 units; 95% CI: -7.8, -12.4 units), and knee extensor strength (mean change, 0.34 Nm/kg; 95% CI: 0.26, 0.42 Nm/kg) across the group over the same period. Exercise adherence was not associated with changes in pain, function, and knee extensor strength over 2-week periods or over the entire 12 weeks. CONCLUSION: Covertly measured adherence to a home strengthening program was not associated with changes in patient outcomes. These findings challenge the notion that greater exercise adherence leads to greater improvement in patient outcomes during a short-term intervention. J Orthop Sports Phys Ther 2019;49(7):548-556. doi:10.2519/jospt.2019.8843.

Essential key messages about diagnosis, imaging, and self-care for people with low back pain: a modified Delphi study of consumer and expert opinions.

People with back pain regularly search for information online; however, the quality of this online information is often poor. We established a list of the most important messages about diagnosis, imaging, and self-care for people with low back pain, based on consensus opinion and prioritised in order of importance. A list of key messages was derived from clinical practice guidelines for back pain. During 2 survey rounds, a Delphi panel of consumers with back pain and experts rated the importance of each item and suggested additional statements. Messages were retained that were rated as important by more than 70% of the panel. Retained messages were reviewed by consumer focus groups. A priority pairwise ranking activity determined the rank order of the important messages. A final online survey determined the robustness and currency of the final list of statements. The Delphi process and consumer focus groups resulted in 30 unique messages. Experts considered that the most important messages for patients are (1) remain active and (2) reassurance that back pain is a normal experience and not necessarily related to serious harm. This differed from the preferences of people with back pain who prioritised messages related to (1) identification of more serious pathology and (2) principles of management. This list of important key messages about diagnosis, imaging, and general self-care for people with back pain can be used to inform the development of education resources, including new web sites, as well as to direct clinicians in the information they provide to patients.

Developing strategic priorities in osteoarthritis research: Proceedings and recommendations arising from the 2017 Australian Osteoarthritis Summit.

BACKGROUND: There is a pressing need to enhance osteoarthritis (OA) research to find ways of alleviating its enormous individual and societal impact due to the high prevalence, associated disability, and extensive costs. METHODS: Potential research priorities and initial rankings were pre-identified via surveys and the 1000Minds process by OA consumers and the research community. The OA Summit was held to decide key research priorities that match the strengths and expertise of the Australian OA research community and align with the needs of consumers. Facilitated breakout sessions were conducted to identify initiatives and strategies to advance OA research into agreed priority areas, and foster collaboration in OA research by forming research networks. RESULTS: From the pre-Summit activities, the three research priority areas identified were: treatment adherence and behaviour change, disease modification, and prevention of OA. Eighty-five Australian and international leading OA experts participated in the Summit, including specialists, allied health practitioners, researchers from all states of Australia representing both universities and medical research institutes; representatives from Arthritis Australia, health insurers; and persons living with OA. Through the presentations and discussions during the Summit, there was a broad consensus on the OA research priorities across stakeholders and how these can be supported across government, industry, service providers and consumers. CONCLUSION: The Australian OA Summit brought consumers, experts and opinion leaders together to identify OA research priorities, to enhance current research efforts by fostering collaboration that offer the greatest potential for alleviating the disease burden.

Self-reported Home Exercise Adherence: A Validity and Reliability Study Using Concealed Accelerometers.

BACKGROUND: Accurate measurement of adherence to prescribed exercise programs is essential. Diaries and self-report rating scales are commonly used, yet little evidence exists to demonstrate their validity and reliability. OBJECTIVES: To examine the concurrent validity of adherence to home strengthening exercises measured by (1) exercise diaries and (2) a self-report rating scale, compared to adherence measured using an accelerometer concealed in an ankle cuff weight. Test-retest reliability of the self-report rating scale was also assessed. METHODS: In this clinical measurement study, 54 adults aged 45 years or older with self-reported chronic knee pain were prescribed a home quadriceps-strengthening program. Over 12 weeks, participants completed paper exercise diaries and, at appointments every 2 weeks, rated their adherence on an 11-point numeric rating scale. A triaxial accelerometer was concealed in the ankle cuff weight used for exercises. Self-reported adherence rating scale data over each 2-week period were analyzed using descriptive statistics, the Wilcoxon signed-rank test, and a Bland-Altman plot to assess agreement, Spearman correlations for validity, and intraclass correlation coefficients for test-retest reliability. RESULTS: Exercise adherence was significantly overestimated in diaries during the 12 weeks (diary median, 220 exercises; accelerometer, 176; P<.001) and was moderately correlated with accelerometer data (r = 0.52; 95% confidence interval: 0.26, 0.69). A Bland-Altman plot indicated large between-participant variability in agreement between these measures. Self-reported adherence showed poor to fair correlations with accelerometer data (mean r = 0.23-0.39), and less than acceptable reliability (intraclass correlation coefficient = 0.79; lower 1-sided 95% confidence limit, 0.68). CONCLUSION: Exercise diaries showed questionable validity and variable levels of agreement compared with accelerometer-measured exercise completion. A self-reported adherence rating scale had limited validity and less than acceptable test-retest reliability. J Orthop Sports Phys Ther 2018;48(12):943-950. Epub 27 Jul 2018. doi:10.2519/jospt.2018.8275.

Improving Adherence to Exercise: Do People With Knee Osteoarthritis and Physical Therapists Agree on the Behavioral Approaches Likely to Succeed?

OBJECTIVE: To describe which behavior change techniques (BCTs) to promote adherence to exercise have been experienced by people with knee osteoarthritis (OA) or used by physical therapists, and to describe patient- and physical therapist-perceived effectiveness of a range of BCTs derived from behavioral theory. METHODS: Two versions of a custom-designed survey were administered in Australia and New Zealand, one completed by adults with symptomatic knee OA and the second by physical therapists who had treated people with knee OA in the past 6 months. Survey questions ascertained the frequency of receiving/prescribing exercise for knee OA, BCTs received/used targeting adherence to exercise, and perceived effectiveness of 36 BCTs to improve adherence to prescribed exercise. RESULTS: A total of 230 people with knee OA and 143 physical therapists completed the survey. Education about the benefits of exercise was the most commonly received/used technique by both groups. People with knee OA rated the perceived effectiveness of all BCTs significantly lower than the physical therapists (mean difference 1.9 [95% confidence interval 1.8-2.0]). When ranked by group mean agreement score, 2 BCTs were among the top 5 for both groups: development of specific goals related to knee pain and function; and review, supervision, and correction of exercise technique at subsequent treatment sessions. CONCLUSION: Goal-setting techniques related to outcomes were considered to be effective by both respondent groups, and testing of interventions incorporating these strategies should be a research priority.

Interventions to increase adherence to therapeutic exercise in older adults with low back pain and/or hip/knee osteoarthritis: a systematic review and meta-analysis.

OBJECTIVE: To evaluate whether interventions aimed at increasing adherence to therapeutic exercise increase adherence greater than a contextually equivalent control among older adults with chronic low back pain and/or hip/knee osteoarthritis. DESIGN: A systematic review and meta-analysis. DATA SOURCES: Five databases (MEDLINE (PubMed), CINAHL, SportDISCUS (EBSCO), Embase (Ovid) and Cochrane Library) were searched until 1 August 2016. ELIGIBILITY CRITERIA FOR SELECTING STUDIES: Randomised controlled trials that isolated the effects of interventions aiming to improve adherence to therapeutic exercise among adults ≥45 years of age with chronic low back pain and/or hip/knee osteoarthritis were included. RESULTS: Of 3899 studies identified, nine studies (1045 participants) were eligible. Four studies, evaluating strategies that aimed to increase motivation or using behavioural graded exercise, reported significantly better exercise adherence (d=0.26-1.23). In contrast, behavioural counselling, action coping plans and/or audio/video exercise cues did not improve adherence significantly. Meta-analysis using a random effects model with the two studies evaluating booster sessions with a physiotherapist for people with osteoarthritis revealed a small to medium significant pooled effect in favour of booster sessions (standardised mean difference (SMD) 0.39, 95% CI 0.05 to 0.72, z=2.26, p=0.02, I2=35%). CONCLUSIONS: Meta-analysis provides moderate-quality evidence that booster sessions with a physiotherapist assisted people with hip/knee osteoarthritis to better adhere to therapeutic exercise. Individual high-quality trials supported the use of motivational strategies in people with chronic low back pain and behavioural graded exercise in people with osteoarthritis to improve adherence to exercise.

Barriers and Facilitators to Exercise Participation in People with Hip and/or Knee Osteoarthritis: Synthesis of the Literature Using Behavior Change Theory.

Exercise is recommended for hip and knee osteoarthritis (OA). Patient initiation of, and adherence to, exercise is key to the success of managing symptoms. This study aimed to (1) identify modifiable barriers and facilitators to participation in intentional exercise in hip and/or knee OA, and (2) synthesize findings using behavior change theory. A scoping review with systematic searches was conducted through March 2015. Two reviewers screened studies for eligibility. Barriers and facilitators were extracted and synthesized according to the Theoretical Domains Framework (TDF) by two independent reviewers. Twenty-three studies (total of 4633 participants) were included. The greatest number of unique barriers and facilitators mapped to the Environmental Context and Resources domain. Many barriers were related to Beliefs about Consequences and Beliefs about Capabilities, whereas many facilitators were related to Reinforcement. Clinicians should take a proactive role in facilitating exercise uptake and adherence, rather than trusting patients to independently overcome barriers to exercise. Strategies that may be useful include a personalized approach to exercise prescription, considering environmental context and available resources, personalized education about beneficial consequences of exercise and reassurance about exercise capability, and use of reinforcement strategies. Future research should investigate the effectiveness of behavior change interventions that specifically target these factors.

What do people with knee or hip osteoarthritis need to know? An international consensus list of essential statements for osteoarthritis.

OBJECTIVE: To establish priority key messages for patients with osteoarthritis (OA). METHODS: A Delphi survey and priority pairwise ranking activity was conducted. Participants included 51 OA experts from 13 countries and 9 patients (consumers) living with hip and/or knee OA. During 3 Delphi rounds, the panel of experts and consumers rated recommendations extracted from clinical guidelines and provided additional statements they considered important. When ≥70% of panel members agreed a statement was "essential," it was retained for the next Delphi round. The final list of essential statements was reviewed by a consumer focus group and statements were modified for clarity if required. Finally, a priority pairwise ranking activity determined the rank order of the list of essential messages. RESULTS: Eighty-five experts and 15 consumers were invited to participate; 51 experts and 9 consumers completed round 1 of the Delphi survey, and 43 experts and 8 consumers completed the final priority ranking activity. From an original list of 114 statements, 21 statements were rated as essential. Most statements (n = 17) related to nondrug treatment approaches for OA. Study limitations included that >50% of the panel comprised of physical therapists lead to high rankings of exercise and physical activity statements and also that only English-language statements were considered. CONCLUSION: OA experts and consumers have identified and prioritized 21 key patient messages about OA. These messages may be used to inform the content of consumer educational materials to ensure patients are educated about the most important aspects of OA and its management.