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The unpredictable journeys of spreading, sustaining and scaling healthcare innovations: a scoping review

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Abstract

Innovation has the potential to improve the quality of care and health service delivery, but maximising the reach and impact of innovation to achieve large-scale health system transformation remains understudied. Interest is growing in three processes of the innovation journey within health systems, namely the spread, sustainability and scale-up (3S) of innovation. Recent reviews examine what we know about these processes. However, there is little research on how to support and operationalise the 3S. This study aims to improve our understanding of the 3S of healthcare innovations. We focus specifically on the definitions of the 3S, the mechanisms that underpin them, and the conditions that either enable or limit their potential. We conducted a scoping review, systematically investigating six bibliographic databases to search, screen and select relevant literature on the 3S of healthcare innovations. We screened 641 papers, then completed a full-text review of 112 identified as relevant based on title and abstract. A total of 24 papers were retained for analysis. Data were extracted and synthesised through descriptive and inductive thematic analysis. From this, we develop a framework of actionable guidance for health system actors aiming to leverage the 3S of innovation across five key areas of focus, as follows: (1) focus on the why, (2) focus on perceived-value and feasibility, (3) focus on what people do, rather than what they should be doing, (4) focus on creating a dialogue between policy and delivery, and (5) focus on inclusivity and capacity building. While there is no standardised approach to foster the 3S of healthcare innovations, a variety of practical frameworks and tools exist to support stakeholders along this journey.

Background

It is difficult to understand how innovations circulate in highly institutionalised and rapidly changing environments such as health systems [1,2,3,4,5]. Health systems in various jurisdictions are slow to adapt, innovate and improve at a sufficient pace [6,7,8]. According to Health Quality Ontario “… fewer than 40% of healthcare improvement initiatives successfully transition from adoption to sustained implementation that spreads to more than one area of an organization” ([7], p. 4). This can be challenging to healthcare communities intent on increasing the impact of innovations within and beyond jurisdictions [8, 9]. The innovation journeys that would enable improvement in local settings to expand and bring about large-scale health system transformation remains something of a black box [10, 11]. A growing body of research in health systems focuses on three specific processes as potential levers to accelerate improvement and innovation, namely the spread, sustainability and scale-up (hereafter referred to as the 3S) of healthcare innovations [12,13,14,15,16].

The literature on the 3S of healthcare innovations highlights that these processes unfold along a continuum [17,18,19,20,21,22,23], where progress is enabled or challenged by a set of unpredictable dynamics, contextual factors and organisational processes [24,25,26,27,28]. The growing interest in the 3S reflects a need to respond to the challenge of increasing the innovative capacities of health systems and organisations. However, against the promise of the 3S of innovation, scholars stress that innovation is, in effect, a journey, which is unpredictable in nature and involves social, dynamic and non-linear processes [29,30,31,32,33,34,35,36,37,38]. Thus, there seems to be an emerging tension in the literature between, on the one hand, the idea that the journeys innovation takes through the 3S can be grasped, supported and achieved by means of a structured approach, and on the other, the idea that neither the journeys of innovation nor their effects can be predicted. In order to reconcile this tension, we consider that the social, dynamic and iterative characteristics of innovation journeys are themselves the structuring pillars of innovations. Hence, while paying attention to the social dynamics that underlie innovation journeys through the 3S may not enable us to predict their course or effects, it may bring us closer to discovering the sources of significant changes that appear along the way.

While the structural changes commonly used in healthcare improvement efforts may help create a more receptive context for innovation, they do not appear sufficient to foster the 3S of healthcare innovations and achieve system transformation [39,40,41]. Large structural reorganisations generally fail to overcome the change-resistant nature of healthcare systems with regards to lasting improvement [42]. Other levers are needed to accelerate uptake of local innovations more systematically [40, 43,44,45,46,47,48,49,50]. These include engagement of front-line managers and providers in a culture of improvement, a focus on population needs, supportive policies and incentives, investment in organisational capacity, participation of patients and citizens, and evidence-informed decision-making [51,52,53,54].

This review aims to consolidate the evidence on the 3S of healthcare innovation to better understand how they work and the mechanisms and contextual conditions that enable complex health systems and organisations to increase uptake of innovations.

The legacy of the diffusion of innovation model

Everett Rogers’ seminal research on the diffusion of innovations model (DIM) moved the field from technological determinism (i.e. improvements will inevitably be adopted) to a focus on social dynamics (i.e. social factors determine whether and how an improvement will be adopted) [16, 20,21,22, 55]. The innovation journey according to Rogers is a process of social exchange and construction in which meanings and values attributed to the innovation take form [56]. His work illustrates that it is not just the properties (relative advantage, compatibility, complexity, trialability and observability) of innovations that determine their diffusion [36, 56], but rather an aggregate set of factors associated with social relations and communication across networks [57, 58]. These include government regulations, social values promoted by various actors and human interactions around a given innovation [22, 59]. Indeed, the properties of an innovation will not have the same meaning and value for all actors within a given context, and communication among various individuals and groups within and across contexts influence the acceptability and dissemination of the innovation [59].

The DIM helps to understand the dynamics that take place in centralised diffusion systems as well as decentralised systems that recognise the agency of users in shaping an innovation [58]. However, the DIM does not focus on the mechanisms and enabling conditions for moving innovations from local to large-scale uptake within complex and highly institutionalised sectors such as healthcare. This paper aims to address this gap, in part by looking at the 3S of healthcare innovations within Rogers’ DIM perspective on the innovation journey.

Methods

Scoping review

A scoping review of the literature was undertaken between October 2016 and April 2017, commissioned by the Canadian Foundation for Healthcare Improvement (CFHI). The central research question was: How to facilitate the 3S processes of healthcare innovations? Booth’s five-stage process for scoping reviews [60] was employed, involving (1) an exploratory scoping search of existing reviews to get a sense of the volume and scope of available literature on the research topic in order to identify relevant databases and key search terms for the search strategy, (2) a search for relevant peer-reviewed articles and grey literature papers in these databases, using key search terms (both free-text and thesaurus terms), (3) a search for additional relevant articles by screening the bibliographies (reference lists) of all papers, (4) revision and modification of the initial search strategy to ensure that we included all articles potentially relevant to the research question, and (5) extraction, analysis and recording of data from all articles in the form of summary tables.

Search strategy

We started by exploring 48 prior studies to develop our search strategy. We then used three search engines (EBSCOhost, ERIC, Google Scholar) and seven electronic databases (CINHAL, Academic Search Complete, Business Complete Source, PsycINFO, SocINDEX, MEDLINE, EconLit) to comprehensively search for articles, using the following key search terms: How to Spread OR How to Sustain* OR How to Scale AND Innov* AND health OR healthcare OR health organization* OR health system*. We identified 641 potentially relevant papers from grey and peer-review literature for the review. A two-stage screening process was used. The first stage consisted in reviewing articles by title and abstract, which resulted in 112 articles meriting further review. Papers were retained for inclusion if (1) abstracts included the word(s) spread* AND/OR sustain* AND/OR scale*, (2) papers were specific to the healthcare domain, (3) papers provided conceptual and/or empirical guidance on how to facilitate the 3S processes of healthcare innovation, and (4) papers represented OECD countries. A total of 18 papers met these criteria and were retained. Screening the bibliographies of these papers and hand searching and verification identified 26 additional papers that went on to full-text review, of which 7 met the above criteria and were retained, bringing us to a total of 25 articles for analysis. Finally, the documentation stage involved extracting, analyzing and summarising the following data from the 24 papers included in the review:

  1. 1)

    Authors and title

  2. 2)

    Research question/aim

  3. 3)

    Methodological design

  4. 4)

    Main process(es)

  5. 5)

    Definitions

  6. 6)

    Mechanisms

  7. 7)

    Enabling and limiting factors

Data analysis

We used a two-phase analytical approach to extract and synthesise data from retained papers. First, a descriptive analysis was undertaken to categorise papers according to (1) grey literature or peer-reviewed publication status, (2) the 3S process(es) addressed and (3) their jurisdiction of publication. Second, we conducted a thematic analysis of the data. Three analytical themes were selected by the CFHI based on their organisational needs and priorities, as follows: (1) 3S definitions, (2) 3S mechanisms and (3) conditions that enable or limit the potential for 3S (Table 1). We should emphasise that, while the definition of ‘mechanisms’ used in this study is supported by Normalisation Process Theory (NPT), NPT was not used as a theoretical lens to extract, analyse and record data specific to the 3S mechanisms. NPT is a sociological approach developed to understand the dynamics of integrating new technologies and innovations, particularly in healthcare contexts; in the present paper, we use NPT to add conceptual traction to our efforts to uncover the mechanisms involved in the 3S of healthcare innovations.

Table 1 Description of themes included in the thematic analysis

Both the descriptive and thematic analyses were performed by a single investigator and were validated through peer-review by stakeholders at CFHI. Following each of three review cycles (submitted December 16th, 2016, February 28th, 2017, and July 19th, 2017), the research team revised and refined the outcomes of the scoping review according to feedback provided by CFHI stakeholders. While it was not among the initial study objectives, recurrent insights emerging from analysis of the data allowed us to inductively identify five key learnings on 3S from which a framework of actionable guidance was developed and submitted to CFHI in the form of a research report (October 12th, 2017). CFHI then created a task force, including the research team and CFHI senior directors, improvement leads and faculty leads, to provide feedback on the framework, which saw multiple iterations before consensus was reached on its final form.

Results

Scoping review

Scoping reviews are useful to answer broad research questions, drawing on a comprehensive literature review to explore the breath of available data produced over a specified time period on a given topic [60]. We performed a scoping review to explore what is known about how to spread, sustain and scale innovations in healthcare. The search and selection process illustrated in Fig. 1 resulted in the inclusion of 24 papers. Of the 24, 15 were peer-reviewed articles and 9 were grey literature publications. The study designs of the peer-reviewed papers included systematic reviews (n = 3), case studies (n = 3), scoping reviews (n = 2), narrative review (n = 1), qualitative grounded theory (n = 1), longitudinal ethnography (n = 1), Delphi technique (n = 1) and others (n = 3). Most of the scientific and grey literature was informed by sociological, organisational and health sciences disciplines. Overall, the literature mainly focussed on the scale of healthcare innovations (n = 7), their sustainability (n = 4), spread (n = 4), or spread and scale (n = 4), or spread and sustainability (n = 4), with only one paper addressing all 3S components. In terms of jurisdiction, most studies were conducted in the United Kingdom (n = 10), followed by Australia (n = 4), Canada (n = 4), the United States (n = 3), New Zealand (n = 1), the Netherlands (n = 1) and Kenya (n = 1).

Fig. 1
figure1

Scoping review search process flow chart

Descriptive analysis

Descriptive analysis aimed to categorise peer-reviewed articles (n = 15) and grey-literature publications (n = 9) included in the final selection. Tables 2 and 3 present the data extracted from peer-reviewed articles and grey-literature publications, respectively.

Table 2 Key findings from peer-reviewed articles
Table 3 Key findings from grey literature publications

Thematic analysis

Definitions

Our review shows that there are no standardised definitions for the 3S of healthcare innovations. Some authors use the terms spread and sustainability, or spread and scale-up, interchangeably [24, 78]. The 3S can be characterised as social, dynamic, non-linear and unpredictable processes [9, 12, 24, 25, 64], and various sub-concepts associated with 3S add to both the complexity and richness of these processes (Table 4).

Table 4 Definitions

Spread is commonly defined as both passive and deliberate efforts to communicate and implement an innovation, and usually involves adapting an innovation to a new setting [13, 67, 87]. Although the dualistic nature of ‘passive and deliberate’ efforts can give rise to conceptual tensions, many scholars argue that these opposing characteristics emerge along a continuum from diffusion to dissemination of innovations. Along that continuum, diffusion would be associated with passive efforts, and dissemination would refer to more deliberate actions. While some authors describe spread as iterative, we found no studies that established a sequential relationship or degree of iteration between diffusion, dissemination and adoption through the spread process [9, 12, 13, 15].

Sustainability is commonly defined as what happens when an innovation becomes routinised within an organisation or other setting. Sustainability and implementation are closely related; the primary difference is that implementation is time-limited, while sustainability occurs over an undefined time, allowing actors to continuously learn and reflect on their experimentation [16, 88,89,90].

Scale-up commonly refers to the process in which the coverage and impact of an innovation are expanded to reach all potential beneficiaries. In that sense, what would most significantly distinguish spread from scale is not the processes involved, but the goal. As mentioned earlier, spread aims to communicate and implement an innovation, and usually involves adapting an innovation to a new setting, while scale focuses more on expanding the range of people who would benefit from a given innovation. It mostly consists of broadening innovations from local settings to wider jurisdictional or policy contexts. The concept of scalability [84], expandability [70], fidelity [77] and replicability [85, 86] are associated with scaling up an innovation.

The common definitions of these terms allude to the importance of balancing preservation of the core elements of an innovation (fidelity) with contextual adjustments (adaptability). Evidence on the scale-up of healthcare innovations and large-scale transformation also emphasises the need to balance ‘hard’ assets (e.g. performance metrics) and ‘soft’ assets (e.g. history, relational background, existing partnerships within a given organisational setting) [9, 24, 66, 77]. The successful scaling of healthcare innovations seems to require a balanced and comprehensive set of resources, including financial, technical, relational and political assets. Building on a comprehensive set of capacities may lead to a more successful and sustainable scaling process.

What remains less clear in the definition of 3S is the role of policy environments and governance capacities in shaping the innovation journey within and across healthcare systems. While several frameworks acknowledge the importance of policy, political context and organisational structure to the progress of innovation in healthcare settings, little is known about the relation between governance capacities, which involve the capacity to implement and monitor policies, and the success of the 3S. Although they are generally described as processes on a continuum with well-delineated phases, the 3S may refer to innovation journeys that reflect the uncertain and contextualised nature of innovations, as well as the iterative and overlapping nature of the 3S.

Mechanisms

There are no standardised mechanisms to support the 3S of innovation [66, 91], though many healthcare institutions and agencies have attempted to develop plausible insights into how they might be supported [7, 73,74,75, 77,78,79, 92,93,94]. While the grey literature provides various frameworks and tools, the scientific literature suggests that there is no ‘one size fits all’ approach [1, 13, 25, 87]. Rather, the 3S processes overlap in their operational application, and the mechanisms behind 3S are often described as cutting across these three processes. Based on findings from our scoping review, we argue that 3S mechanisms be categorised along four aspects of the innovation journey, namely substance (innovation), processes, stakeholders and context (Fig. 2).

Fig. 2
figure2

Mechanisms involved in the 3S of healthcare innovations

Substance

As argued by Rogers [57, 58, 59], characteristics of the substance of an innovation influence 3S. While the substance of an innovation is variable, the innovation results from successful exploitation of people’s ideas and capacities [91]. Given the diversity of actors, ideas and capacities in healthcare systems and organisations, the source of innovation is dynamic [95]. While healthcare has what Berwick calls a ‘pro-innovation bias’ [96, 97], healthcare innovations are not always appropriate, valuable or feasible. Therefore, actors must engage in a serious assessment of the relative advantage of the innovation not only by patients, but also by providers, managers, policy-makers and sometimes third parties. If the innovation is viewed favourably, the next challenge for its 3S is balancing fidelity and adaptability [25, 98]. This paradox arises from a need for continuous contextual adaptation, without crossing the line beyond which the innovation becomes ‘too different’ to deliver the expected improvement [71, 99, 100]. The literature suggests paying attention to the substance of the innovation, while monitoring outcomes to be sure that 3S generates continuous improvement towards the initial objective [88].

Processes

Processes show up in the dynamics underpinning a phenomenon such as the 3S [101,102,103]. The literature identifies some specific processes associated with spread and sustainability (e.g. diffusing, disseminating, adapting, adopting, implementing), but these are less clear for scale-up [66, 89, 104]. There is a need to identify and understand the cumulative effect of processes associated with sustainability and spread that can support the systemic uptake (scale-up) of innovation.

If we take a broader view of the processes involved in the 3S of healthcare innovations, there is consensus on the fundamental role of frequent monitoring and feedback. These mechanisms seem crucial for maintaining favourable stakeholder perception of the value and feasibility of the innovation over time. Less well-studied is the optimal balance between soft and hard metrics [77]. Use of quantitative data seems to support sustainability [73, 78, 100]. Use of monitoring and feedback for frequent reflection on the outcomes of innovation triggers a collective form of learning, which is associated with better chances of success in 3S [105]. Through collective learning, new collective cognitive products may lead to behavioural changes that foster the institutionalisation of new values, beliefs, norms and organisational practices around the innovation [65, 105]. This is particularly relevant for sustainability, as the innovation becomes an intrinsic part of the organisation or system’s attitudes, norms, beliefs and behaviours.

Stakeholders

The complexity of healthcare systems and stakeholders is both a barrier and facilitator to 3S. However, a paradox often appears, where the need to recognise and rely on distributed leadership to support the innovation journey arises in a context of interprofessional and interorganisational boundaries [64, 95, 106]. Consider the strong influence of the distribution of powers between the policy and delivery sides of healthcare systems, seen most obviously in structural hierarchies and accountability relationships [31, 107]. While this reality can sometimes limit the potential to 3S innovations, it can also strengthen 3S when stakeholders cross clinical, organisational, policy and jurisdictional boundaries to create distributed forms of agency [12, 74, 94]. Crossing boundaries increases the scope of capacity-building needed to support and operationalise 3S, fostering continuous improvement in healthcare within and across jurisdictions [108].

Context

According to renowned healthcare improvement expert Berwick, “Researchers who wish to understand how improvement works, and why and when it fails, will never succeed if they regard context as experimental noise and the control of context as a useful design principle” [96, 97]. In line with Roger’s theoretical take (DIM) on the social nature of diffusing innovations, as well as Shaw et al.’s idea of looking at the 3S of innovation as social practices, Berwick highlights the need to recognise context as an active social ingredient in 3S [109]. The evolution of context itself may bring alignment between adaptation of the innovation and organisational needs and capacities. Though demanding, stakeholders must acknowledge and capitalise on the unpredictability of context, and its influence on the 3S journey [1, 24, 25], to assure that the innovation remains seen as credible, valuable and feasible. Indeed, the success of 3S is dependant on an understanding of context, whether at the individual level, or as manifest in structural elements such as governance, resources, incentives, and accountability or regulations.

Enablers and barriers

There is no consensus on the ‘right’ combination of enabling conditions for the 3S of healthcare innovations [75], and little evidence on when, during the 3S journey, they should be mobilised. However, seven enabling factors emerged from our analysis as the most frequently identified and influential (Table 5). Of these, the two most important for potential innovation adopters within healthcare organisations or at the system level are the perceived value and feasibility of the innovation [9, 80, 98, 110, 111]. Indeed, perceptions are embedded in a complex web of other conditions, including the substance of the innovation, leadership, accountability, context, timing, management support and governance. However, a healthcare innovation appears more likely to spread, sustain and scale successfully if stakeholders shift their focus to recognise in these conditions the potential for new collaborations, the development of new capacities, and the empowerment of patients, citizens and providers. New possibilities can emerge from collaborations within and across jurisdictions, a reciprocal mix of top-down, bottom-up and unconventional leadership, and protected time and space for learning, adapting and building innovation capacity [12, 13, 15, 24, 25, 64,65,66,67, 69, 70]. We note a gap in evidence on the role of patients, families, citizens, third parties (e.g. research networks) and policy as enabling conditions to 3S.

Table 5 Support conditions of the 3S

Discussion

In this paper, we review scientific and grey literature evidence on the 3S of healthcare innovations to better understand how they work as well as the mechanisms and conditions that either facilitate or hinder 3S. Health systems, supported by various agencies, are paying increasing attention to the problem of the 3S of innovations [13, 18, 81, 84]. While they are not always well supported by evidence or applied appropriately, processes of 3S are powerful engines to propagate these types of innovation. Health systems demonstrate much less capacity to support innovations in models of care or strategies to achieve large-scale improvements. We will look, in this section, at the policy and practical implications derived from analysis of the grey and scientific literature on how to spread, sustain and scale healthcare innovations from local settings to large-scale systems, focusing (1) on the why, (2) on perceived-value and feasibility, (3) on what people do, rather than what they should be doing, (4) on creating a dialogue between policy and delivery, and (5) on inclusivity and capacity-building. We embed these practical implications within a framework of actionable guidance for 3S across five key focus areas (Fig. 3). This framework aims to encourage health system actors to focus on five main components of innovation journeys through the 3S. Our review of the literature finds that values, feasibility, capacity, inclusivity and learning are significant elements in the process of innovation in healthcare organisations. Our framework suggests that there is a complementary relationship between these elements. An integrated perspective that pays attention to each of these components would allow the emergence and identification of significant sources of change across innovation journeys in 3S, from delivery right through to policy. Our findings in this scoping review do not enable us to determine whether different degrees of attention are needed in processes of spread, sustainability and scale. However, given the dynamic, non-linear and sometimes overlapping journeys of the 3S of innovation that can simultaneously cohabitate, we argue that it might be better to support an integrated focus on key elements that intersect and enrich all these processes, rather than invest efforts in trying to dissect their individual paths.

Fig. 3
figure3

Framework of actionable guidance for 3S across five key focus areas

Focus on the why

An innovation is not an invention, and what is new to some organisations or practitioners may already be very familiar to others. An innovation will have different meanings for different people, which is something that should be valued. Meanings and values that emerge through 3S may challenge usual practices or reveal that an innovation is ill-suited to a given context and consequently result in its rejection. However, the evidence suggests that, if a sufficient number of individuals or organisations have adopted an innovation, it may successfully spread across a system [57]. Given the complexity, dynamism and plurality of healthcare institutions, it appears utopian to expect that the meaning of an innovation remains static over time [112]. Rather than try to propagate a standardised vision of an innovation within a given organisational setting or system, energies should focus on ensuring that everyone involved in or affected by the 3S process can answer why they commit to the innovation; answers will not be the same for everyone [75]. Lags in momentum and interruptions are to be expected along the 3S journey, but it is crucial that stakeholders consider that the innovation adds value to their work and to the quality of care and services they provide to patients [25]. As found by the NHS Scotland Quality Improvement Hub, “focussing on the why” ([94], p. 4) involves efforts such as sharing evidence on the relative advantage of the innovation, highlighting promising experiences from other jurisdictions, and monitoring and measuring performance to see improvement.

Focus on perceived value and feasibility

Innovation is always, to some degree, disruptive [113]. Innovation demands changes in the usual ways of doing things in an organisation or system [114, 115]. We call the efforts to spread, sustain and scale-up innovations ‘innovation work’ to reflect the emotional and behavioural adjustments potential users must make to put an innovation into practice. Further, adjustments reach beyond the level of individual adopters. The implementation of a new model of care requires changes in the roles of professional groups, in the relationships between providers from various sectors, in the financing of care, in regulations and labour contracts, and in the politics that shape care delivery [116]. Any significant innovation is a source of destabilisation and change for practice settings, and requires commitment from influential leaders and the development of policies to promote alignment between attributes of the innovation and existing regulations, thereby mitigating the negative effects of change [34]. Innovation work can be facilitated by support from influential leaders and by policies that promote alignment between the characteristics of the innovation and system functioning and regulations [104, 116]. Given the effort and energy required, the focus of 3S must be on the perceived value and feasibility of innovations for health system actors. Efforts deliberately engaged by organisational actors, especially in disruptive contexts, are significantly motivated by the value they intend to create. The value pursued by health system actors may refer to the ‘quadruple aim’ of improvements in patient experience, population health and the well-being of healthcare teams, along with reductions in cost. However, as discussed earlier in this paper, value can be decontextualised by individuals into what they intrinsically aim to create or maximise for users, families, citizens, colleagues, etc. In highly pluralistic environments such as healthcare organisations, the feasibility of the efforts innovations require appears as a powerful condition to generate and maintain common values among actors. The belief in people that they are equipped and able to contribute to 3S is crucial to maintaining motivation over time [64, 117,118,119,120]. Supporting and guiding collective action towards common goals throughout the innovation journeys requires the agility to create complementarities among stakeholders, even as each seeks to bring value to their own work and reinforce each other’s competencies to achieve value.

Focus on what people do, rather than what they should be doing

Politicians and policy-makers are often impatient to see change and improvement in health systems [104]. They design and adopt policy reforms that often, from the point of view of healthcare providers, involve a wide range of innovations. Providers often must learn to work and collaborate differently to make innovation a reality in their practice setting. They need support to learn new ways of organising work and delivering care. Innovations are not adopted by reorganising people and rules to support, sustain and eventually spread and scale them up. Rather, innovation will become routine practice if providers have time to incorporate new practices into their local context, learning as they do so, and designing an approach that fits well with local needs and capacities [65]. This is one of the more delicate balances to manage in healthcare innovation – the need to leave space for local adaptation and the risk of diluting the strengths of the innovation [1, 121, 122]. It is not realistic to expect managers and policy-makers to support an open agenda for 3S, nor for providers to maintain motivation and commitment without incentives, especially when the innovation’s benefits in improving patients’ health status and care experience is unclear. However, forcing innovation work within a short-term agenda might hinder its potential sustainability [1]. The focus must therefore be on what people do, rather than what they should be doing. One strategy is to adopt management tools that continuously monitor and provide feedback on the ongoing work accomplished by stakeholders, rather than management tools that aim to increase control and coercion over expected work [123]. The more an innovation circulates across a variety of settings and contexts, the more it – and the stakeholders involved – will change [124]. Focussing on what people do, rather than on what they should do, helps to identify the sources of value and issues of feasibility in innovation work. Moreover, this allows us to situate the value and feasibility of innovation in a mechanism to assess and monitor the innovation process, which creates and protects room for adaptation in the innovation, in people and in the system.

Focus on creating a dialogue between delivery and policy

There is growing recognition of the importance of context in shaping the destiny of innovation. Context is a multi-faceted concept. It can refer to broader policy and political context, and to more micro organisational or clinical contexts. The more diverse the contexts (political, organisational, clinical) an innovation touches, the more it will demand exchanges among a variety of actors [125]. An innovation will navigate these interlinked contexts along its journey from delivery to policy, or from policy to delivery [97]. For example, propagation of a new model of primary care may be influenced by negotiations between medical associations and government. To accommodate the multiplicity of contexts and forms of knowledge in the innovation journey, delivery and policy actors will establish a dialogue to arrive at common views of challenges and opportunities. Facilitating an innovation journey requires more than discussions across groups or organisations. This part of innovation work is essentially relational – the aim is for stakeholders to negotiate a way to move an innovation forward that will take their values and interests into account. Strategies to integrate the values and interests of a wide array of stakeholders may include forums and seminars that enable dialogue and problem solving, as well as informal opportunities for communication and deliberation between actors from all levels, from delivery to policy, who may have different views and interests. Champions of an innovation are often seen as facilitators to bridge the various groups affected by the propagation of an innovation, but let’s think outside the box. Evidence points to benefits from distributed and unconventional (e.g. medical secretaries, support staff, patients and citizens) forms of leadership around the 3S of innovation in healthcare [71]. While there are challenges associated with distributed leadership, such as shared decision-making and governance capacities, the presence of genuine experimenters is crucial to accelerate the impact of the 3S of innovation [106, 126]. Dialogue between delivery and policy bodies during innovation journeys (3S) is a significant condition for increasing value, bringing coherence and creating complementarities among parts of healthcare systems that may challenge the penetration of new ways of thinking and doing.

Focus on inclusivity and capacity-building

Health systems are driven by the views, values and interests of multiple professional groups and organisations. In such an environment, it is difficult to promote an innovation by decree [127]. The risk of inertia is high and the propagation of innovations that challenge the status quo is slow. Innovations that are minimally or potentially disruptive will be adopted in health systems if they can challenge this inertia. There is a political economy inherent to health systems, and innovations that affect the allocation and circulation of resources or challenge the position of powerful groups will require explicit discussion and strategies to move forward [112]. The focus must therefore be on fostering distributed governance capacities. The involvement of new actors, such as citizens in health policy and patients in the design of care, may provide a strategy for moving forward. However, this may be insufficient on its own – multiple levers for large-scale transformation and improvement are needed. Countervailing powers, such as evidence of the pay-off of innovations, comparison between current practice and the proposed innovation, monitoring and measurement of performance gaps in the system, and dissemination of promising experience in other health systems, may help to challenge the status quo.

Strengths and limitations

This study has several strengths and limitations. In terms of strengths, it offers a timely and unique contribution by presenting the state of knowledge, reflected in peer-reviewed and grey literature from various jurisdictions and using a wide range of study designs and methodologies, on how to facilitate the 3S of healthcare innovations. The study used a transparent, rigorous and replicable review process, and was developed collaboratively by researchers and decision-makers (CFHI). It contributes to filling current gaps by providing conceptual and operational guidance to support the spread, sustainability and scale of healthcare innovations within complex policy environments. However, our study presents some limitations. First, the scoping review design did not involve assessing the quality of included papers. Second, given the lack of methodological standards for scoping review designs, some scholars may disagree with our review process, which was supported by Booth’s methodological approach [128]. Lastly, the framework of actionable guidance for 3S across five key focus areas suggested in this paper has not yet undergone empirical validation. Future research should explore and validate the empirical application of the framework to better understand how to facilitate the 3S of healthcare innovations.

Conclusion

Our review makes it clear that innovation is not a discrete event, but truly a journey. It encourages us to think of innovations as unpredictable and contextualised, which may therefore give rise to multiple journeys that interact and overlap over the course of the 3S. We have summarised five key lessons that can inform the experience of clinicians, managers, policy-makers, patients and citizens with innovations in health systems and, more importantly, can support their actions. These five lessons may constitute the ingredients for what we call ‘innovation work’ in health systems. The paper’s main contribution, in looking at existing work of the 3S of healthcare innovations, is a comprehensive view of the definitions, mechanisms and support conditions involved in 3S. Further research could look more closely at the role of regulations and legislation in the governance of spreading, sustaining and scaling-up healthcare innovations. Integrating research knowledge around policy capacities and innovation may be helpful. Moreover, while we recognise that theoretical contributions have been made to the field of innovation research applied to healthcare contexts, we argue that there is a need for greater consensus on the theoretical definition of what the 3S are and how they proceed. The current consensus gap jeopardises the production of generative empirical studies, leaving scholars to study this process with only fragmented theoretical insights. We invite researchers to pay greater attention to unsuccessful experiences with the 3S of healthcare innovations, which could help to elucidate the challenges involved and lessons learned to inform future initiatives. We consider that further empirical research could adopt realistic evaluation designs in order to uncover the generative mechanisms that expose how innovations are understood to work, by whom and in which circumstances through the unpredictable journeys of spreading, sustaining and scaling [129]. Moreover, realist evaluation could provide theoretical contributions by generating middle-range theories around the 3S of healthcare innovations.

Availability of data and materials

All data generated or analysed during this study are included in this published article.

Abbreviations

3S:

spread, sustainability, scale

CFHI:

Canadian Foundation for Healthcare Improvement

DIM:

Diffusion of Innovations Model

NHS:

National Health Service

NPT:

Normalisation Process Theory

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Acknowledgements

The authors would like to thank Jennifer Verma for commissioning this work on behalf of the CFHI. Her leadership and support was vital to conducting and validating our methodological steps and results. We also thank the Acute Care for Elders (ACE) Collaborative Team from CFHI for their collaboration in the early stage of the research process.

Funding

This study was commissioned and funded by the Canadian Foundation for Healthcare Improvement (CFHI), from October 2016 to October 2017. Stakeholders from the funding body (CFHI) were involved in the data synthesis of the review, the validation of interpretation of data, and the revision and editing of the writing of the manuscript. The funding body (CFHI) was not involved in the design of the study nor the writing of the manuscript per se.

Author information

ÉCB and JLD co-developed the methodological design and the search strategy for the scoping review. ÉCB conducted the search, screened (n = 614) and selected (n = 24) the relevant papers, extracted and synthesised the data from included papers, and wrote the article (including figures and tables). JLD validated the paper selection, the data extraction and analysis process, co-wrote the introduction, led the writing of the discussion section, and revised the article drafts. Alongside stakeholders from the Canadian Foundation for Healthcare Improvement (CFHI) validating each step of the review process, BC and MS participated in data synthesis, revision and editing of the manuscript. All authors read and approved the final article.

Correspondence to Élizabeth Côté-Boileau.

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Competing interests

The authors declare that they have no competing interests.

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Keywords

  • Innovation
  • spread
  • sustainability and scale-up
  • definitions
  • mechanisms
  • support conditions
  • large-scale system transformation
  • quality improvement