Oversight in Surgical Innovation: A Response to Ethical Challenges
Oversight in Surgical Innovation: A Response to Ethical Challenges
Saksham Gupta 0 1 2
Ivo S. Muskens 0 1 2
Luis Bradley Fandino 0 1 2
Alexander F. C. Hulsbergen 0 1 2
Marike L. D. Broekman 0 1 2
0 Department of Neurosurgery, Brain Center Rudolf Magnus, University Medical Center Utrecht , HP G03.124, PO Box 85500, 3508 GA Utrecht , The Netherlands
1 Harvard Medical School , Boston, MA , USA
2 & Marike L. D. Broekman
Background Surgical innovation has advanced outcomes in the field, but carries inherent risk for surgeons and patients alike. Oversight mechanisms exist to support surgeon-innovators through difficulties associated with the innovation process. Methods A literature review of ethical risks and oversight mechanisms was conducted. Results Oversight mechanisms range from the historical concept of surgical exceptionalism to departmental, hospital, and centralized committees. These fragmentary and non-standardized oversight mechanisms leave surgeoninnovators and patients open to significant risk of breaching the ethical principles at the core of surgical practice. A systematized approach that mitigates these risks while maintaining the independence and dignity of the surgical profession is necessary. We propose an oversight framework that incorporates multiple structures tailored toward the ethical risk introduced by different forms of innovation. Discussion We summarize ethical risks and current regulatory structures, and we then use these findings to outline an oversight framework that may be applied to surgical practice.
Introduction
The drive to innovate has resulted in significant
improvements in surgical outcomes. Surgical innovation occurs in
contexts ranging from individual cases with unique
anatomic features to clinical trials, though there is no single,
universal definition of surgical innovation. Consequently,
surgical innovation can present a challenge by blurring the
distinction between experimentation and clinical care. The
Belmont Report defines innovative care as ‘‘practice that
departs significantly from the standard or accepted’’ and
posits that innovative care that deviates significantly from
the norm should be formally researched with oversight in
place [
1, 2
].
The distinction of research and clinical motivation rests
on their respective motivation: the primary goals of
operative innovation in the clinical and research contexts,
respectively, are beneficence to optimize patient care and
experimental evaluation to generate generalizable
knowledge. Experimental techniques intended to test the new
technique with equipoise fall into the research category that
receives oversight from institutional review boards (IRBs).
However, surgical innovation currently falls outside the
realm of oversight since it is often intended to benefit an
individual patient rather than systematically investigate a
procedure. This type of innovation is exemplified by the
hypothetical case of an ostomy between the common bile
duct (CBD) and hepatopancreatic ampulla to prevent
malabsorption for an infant born with type I biliary atresia
with preserved proximal CBD.
The current lack of consensus on oversight mechanisms
for procedural innovation leaves surgeons and patients
vulnerable to significant risk which carries ethical
implications for surgical practice [
3
]. No standardized approach
exists to aid surgeons in evaluating the ethical challenges
inherent in surgical innovation. This perspective focuses on
the ethical challenges associated with surgical innovation
and proposes an oversight framework to regulate it.
Mechanisms for oversight
Various methods to oversee operative innovation have
been suggested, ranging from regulation by the operator
alone (surgical exceptionalism) to formal evaluation and
oversight for every innovation (Table 1) [
2, 4
]. This range
of opinions highlights the delicate ethical balance between
assuring patient safety without stifling innovation.
Surgical exceptionalism
Surgical exceptionalism is characterized by regulation of
an innovation by the surgeon performing the procedure
without formal oversight [
4
]. Some argue that features
unique to the surgical profession—difficulty in measuring
surgical technique, reproducing surgical procedures, and
achieving consistency between operators—make oversight
impossible. This approach maintains surgeons’
independence, expedites innovation, and mitigates biases held by
the surgical profession. Emergent cases and unexpected
complications may necessitate innovation at a moment’s
notice, which is amenable for this approach. However, it
amplifies the effects of a surgeon’s own biases and
conflicts of interest. This approach presumes rigorous ethical
training, which is presently not met by current medical
training or continuing medical education [
5
].
Departmental and institutional oversight
Discussion with colleagues through informal conversation,
approval by the chair, or case conferences provide
departmental forms of regulation. The results of a policy
including department chair approval and outcomes tracking
for innovations have been reported at The Hospital for Sick
Children with many surgeon-innovators commending its
ease of use and noting that it encouraged them to innovate
[
6
]. The benefit of departmental regulation includes rapid
introduction of the innovation and preserved independence
for the surgeon, who knows the patient’s anatomy the best.
This approach does not mitigate the surgeon’s or
institution’s potential conflicts of interest, and the degree to
which pertinent ethical issues are considered likely varies
widely by surgeon and institution.
Institutional ethics committees (IECs) that meet
regularly to discuss anticipated alteration of procedures provide
increasingly formalized oversight. The standards, scope,
and role of such committees differ widely by institution,
and no hospitals currently integrate them into routine
surgical practice. IECs may contain bioethicists and lawyers
among other professionals to provide multidisciplinary
consultation. They may serve in a consultant role such that
the decision-making rests with the surgeon or in a
regulatory role where its decision may supersede that of the
surgeon. These committees have played larger historic
roles in medical, rather than surgical, decision-making in
part because surgeons believe that ethical consultants may
not truly understand surgical problems [
7
]. Advantages of
this approach are its inclusion of multidisciplinary
opinions, the possibility to teach peers, and the systematized
consideration of pertinent ethical considerations.
Challenges to the IEC method include differing standards
between institutions, a slowed pace of innovation, and
decision-making by professionals not directly involved in a
patient’s care.
Drawbacks
Surgical
Exceptionalism
Departmental
Institutional
Regional/national
IRB
Surgeon knows patient best, professional dignity and Susceptible to individual biases and COIs, interoperator
autonomy maintained, expedient inconsistencies, no support for surgeons
Surgeon knows patient best, multiple opinions incorporated, Susceptible to institutional biases and COIs, interhospital
professional dignity and autonomy maintained, expedient inconsistencies
Multidisciplinary opinions incorporated, surgeon protected by Interhospital variability, professional independence may be
legal and ethical expertise compromised, moderately costly and time-intensive
Multidisciplinary opinions incorporated, sets precedents for Subject to biases of the field, highly costly and
timeentire field, no interoperator and interhospital variability intensive, assessment by evaluators removed from
patient
Multidisciplinary opinions incorporated, protocolized, Moderately costly and time-intensive, assessment by
standardized, transparent evaluators removed from patient
Centralized oversight
Oversight boards organized by regional or national
professional societies would provide the most centralized and
standardized oversight for innovation. However, no
surgical societies currently provide oversight committees for
individuals who seek ethical support for an attempt at
innovation. These committees would have the expertise to
create committees to offer methodologically consistent and
rigorous oversight for individual attempts at innovation.
Such committees are currently hypothetical within the
surgical community, but similar ones exist in medicine: the
American Medical Association’s Council on Ethical and
Judicial Affairs and other specialty societies have judicial
and advisory responsibilities over certain ethics-related
decisions. This centralized process would minimize
individual bias and adds multidisciplinary knowledge, but may
be slow and costly. Furthermore, it may be subjected to
bias formed by the culture of current practice. Finally,
these committees would consist of members not directly
involved with the patient and may not appreciate the
uniqueness of the case or patient’s anatomy.
Formal research protocols
Some operative innovations have been tested in a research
setting through clinical trials. Research is conducted with
clinical equipoise and appropriate blinding and
randomization to generate knowledge for a specific group of
patients and requires formal research protocols with IRB
oversight. Traditionally, the strongest evidence is provided
by randomized control trials, but given low accrual,
interpatient anatomic variation, and difference in skills between
surgeons, most procedures are evaluated by
single-operator/single-institution case series. IECs and IRBs are both
institutional entities, but differ in organization and role.
IECs are multidisciplinary teams that can aid physicians
and surgeons through ethical questions similar to how a
subspecialty consulting team may provide daily input on a
patient at the request of the primary care team. IRBs are
standardized committees that oversee formal investigative
research and monitor ethics as well as efficacy. They are
nationally mandated and standardized bodies designed to
evaluate and oversee all formal research protocols. Their
benefits include the multidisciplinary knowledge,
minimization of conflict of interest, and nationally standardized
implementation of research protocols to ensure safety and
autonomy for patients and maintain integrity and
accountability in research [
8
]. Their downsides include
relatively slower review, which limits feasibility for
emergent cases; significant costs; and oversight by
evaluators who are removed from the clinical management of the
patient [
9
].
Ethical justification for formal oversight
The goal of oversight should be to provide practical
structures that address ethical considerations delineated in
earlier work: scientific validity, risk–benefit ratio, informed
consent, protection of vulnerable populations, justice, and
conflicts of interest [
3, 10
]. Scientific validity and risk–
benefit ratio are ‘‘scientific factors’’ since both involve
scientific and statistical estimations based on available
objective research and expertise. Informed consent,
protection of vulnerable populations, justice, and conflict of
interest are considered ‘‘human factors’’ because they deal
the less tangible subjective areas of interpersonal
communication, social justice, and personal biases. The practical
justification for this division is that scientific factors are
best judged by colleagues in the same field who are
familiar and experienced with the relevant pathology and
anatomy. Human factors, on the other hand, benefit from a
more multidisciplinary approach that recognizes the legal
and cultural contexts behind these ethical principles. These
have been expounded in the previous literature and are
briefly summarized to motivate discussion for novel
oversight mechanisms [11].
Scientific factors
The scientific validity of an innovation depends on
evidence of its safety and efficacy. Randomized control trials
and meta-analyses are the gold standard in evaluating the
clinical efficacy of an innovation, but the challenges of
blinding and randomizing in surgery make conducting
these trials difficult. Indeed, the prevalence and quality of
RCTs in surgery remain low [
12, 13
].
Defining the risk–benefit ratio prior to any attempt at
innovation is crucial. Surgical procedures may trade
function to restore another function, decrease pain, or
extend survival. Thus, precisely defining each patient’s
values is crucial to align the goals of operative innovation
with a patient’s own goals. Innovation carries a ‘‘learning
curve’’ to reach maximal efficacy, and immediate risks
may not be apparent and may depend on each patient’s
anatomy [
14
]. Long-term risks of operative innovations
may be difficult and take years of follow-up to quantify.
Novel procedures bring financial burden, and ill-planned
innovations risk harming the public reputation of the
surgical profession [
15
].
Human factors
Informed consent standards mandate that it is the
responsibility of the surgeon to ensure that the patient understands
the pertinent information necessary to make a choice about
whether to proceed with a procedure. The
information crucial to informed consent should include the
innovative nature of the procedure, evidence to support it, and
the surgeon’s experience with it [
11
].
Examples of vulnerable patients include unconscious
patients, patients in emergency conditions, patients with
refractory disease, and children, prisoners, ethnic
minorities, socially marginalized persons, etc. [
11
]. Care should
be taken to avoid tendencies, including implicit rationing
that excludes certain patients, which may exploit
vulnerable patients [
16, 17
].
Justice within innovation mandates that its risks and
benefits are shared equally by society, including all
geographic and socioeconomic groups. However, innovation
may gravitate toward practices with a culture that
encourages innovation and areas with minimal regulation
of innovation. Innovative surgeons may attract attention
from ‘‘in-the-know’’ patients connected to the medical
community. Furthermore, early innovations not covered by
insurers may limit representation by patients of lower
socioeconomic status.
Conflicts of interest can be divided into financial and
non-financial conflicts. Financial conflicts of interest occur
when certain devices or surgical tools are preferred due to
industry financial incentives. These conflicts are nationally
monitored to an extent—the Sunshine Act in the USA
requires that all payments from the industry to physicians
are registered and open to the public, though does not
mandate that physicians report these to their patients [
18
].
The achievement of innovation may also come with
academic prestige or may be required to continue thriving in
competitive fields of research for physicians or institutions.
Oversight as quality improvement
Standardized oversight structures can aid in mitigating
ethical risks while protecting surgical independence in a
quality improvement (QI) structure that shifts cultural
practice rather than targets individuals. An ideal oversight
framework would serve to accelerate innovation by
protecting surgeons who were formerly too apprehensive
about ethical and legal risks to innovate while not
significantly slowing current surgeon-innovators. We propose a
systematic, quality improvement framework to aid
surgeons in the ethical introduction of surgical innovations
(Fig. 1). This framework builds on The Society of
University Surgeons Surgical Innovations Project Team’s
position statement by stratifying different levels of
innovation [
19
]. Surgeons could utilize existing tools to identify
an innovation as such and then apply this framework to
determine the appropriate level of oversight [
19, 20
]. This
approach would maintain surgical independence and
dignity and encourage the surgeon to take ownership in the
ethical care of their patient. In general, operative
innovations that present greater ethical challenges should warrant
increased oversight. Other factors to weigh include the
experience of the surgeon and the emergence of the case.
This framework should be adopted in a QI mechanism
with measurable outcomes. QI requires transparency;
rigorous data collection and analysis; and openness to adjust.
Relevant outcomes include surgeons’ sense of support
supported while innovating, the usability of this
framework, and patients’ understanding of an innovation.
Objective measures include number of innovations
performed annually and lawsuits from adverse outcomes or
miscommunication. Standardized data collection on the
administrative aspects prior to an innovation (i.e., ease of
committee meeting, adequate time for a department to
deliberate an innovation, etc.) could generate valuable
information on how to implement this oversight framework
efficiently. Prospective data capture from surgical
innovations themselves could provide a wealth of information to
other surgeons considering similar procedures and may
facilitate collaboration as well as study of an innovation.
The mindset of a learning QI system should continually
incorporate data analysis to improve the framework’s
content and delivery. Voluntary, surgeon-led QI initiatives
depend on mutual trust and have demonstrated success in
other elements of surgical care [
21
].
An important initial delineation for this framework is
distinguishing research and individual clinical contexts.
The distinction of these rests on their respective
motivation: the primary goals of operative innovation in the
clinical and research contexts, respectively, are beneficence
to optimize patient care and experimental evaluation to
generate generalizable knowledge. Experimental
techniques intended to test the new technique with equipoise
fall into the research category that receives oversight from
IRBs. An example is single-port laparoscopic
cholecystectomy for porcelain gallbladder with considerable
malignant potential. Traditional laparoscopy already
carries an acceptable risk for this pathology, and this
singleport approach is not an innovation for an individual
patient’s unique anatomic or pathologic circumstances, but
rather as a challenge to multiport laparoscopy.
An operative innovation may at the same time be
experimental and introduced by the surgeon specifically for
a patient thought to derive benefit from it; these cases fall
into the innovation for individualized clinical benefit
category. Oversight in this category includes surgical
exceptionalism, informal discussion with colleagues, formal
departmental conferences, IECs, and regional/national
ethics committees (Table 1). The ethical factors that
determine the appropriate level of oversight include the
aforementioned scientific factors and human factors.
Fig. 1 Framework for the
determination of appropriate
level of oversight
Practical considerations unique to surgery such as expertise
of the surgeon and emergence of the case also factor into
this determination. Illustrative cases are described in
Table 2, though as a caveat, no consensus about what
constitutes surgical innovation exists and individuals may
vary in scenarios they consider innovation.1
The ideal cases for surgical exceptionalism are limited
to those in which the presence of any regulation at all is
unnecessary or overly burdensome. Such procedures
without significant ethical challenges involving efficacy or
decision-making will not require further oversight.
Relevant caveats to this approach are that surgeon discretion
presumes training in identifying innovation and in surgical
ethics and that only innovations that do not significantly
depart from standard of care warrant no additional
oversight since the risk–benefit ratio is not as predictable in
innovations that depart from standard. Further, the
innovation should be discussed with other members of the
surgical and postoperative care teams, including
anesthesiologists, critical care physicians, and nursing staff so they
can provide input and also anticipate changes required in
their care. An example case for surgical exceptionalism is
the utilization of a new port location to facilitate
laparoscopic cholecystectomy in an adult patient with situs
inversus totalis who is able to provide informed consent.
Cases that involve challenges to scientific ethical
factors, but not human ethical factors, may benefit from
departmental oversight. These innovations may be
supported by lower quality preclinical evidence or have poorly
defined risk–benefit ratios, but there are no risks in the
communication between the surgeon and the patient and no
conflicts of interest for the surgeon. The surgeon’s own
colleagues would be best poised to refine the innovation to
maximize benefits to the patient, but as the surgeon knows
the patient’s anatomy and clinical history the best, the
decision to innovate remains with the surgeon and patient.
Surgeons with extensive experience with the anatomic
features involved in a proposed innovation may be well
prepared to undertake an attempt at innovation without
oversight by colleagues as their expertise provides them
with the best possible assessment of efficacy and safety.
Like in surgical exceptionalism, anesthesiologists and
postoperative teams should be included. The
multidisciplinary knowledge of IECs and centralized oversight
committees, which could aid in communicating informed
consent or assessing patient vulnerability, are unnecessary
since no human ethical factors are challenged. Under this
framework, departmental discussion would be appropriate
in determining the approach and optimal extent of resection
for a large complex skull base lesion that invades nearby
neurovascular structures and is expected to be difficult to
remove due to prior irradiation.
Innovations that involve challenges to human ethical
factors (with or without scientific ethical factors) step up to
oversight by IECs. IECs benefit from a diverse range of
opinions due to their multidisciplinary nature and are
consequently poised well to manage situations presenting
complex ethical challenges. Multidisciplinary institutional
committees containing ethicists and lawyers have the
expertise to help surgeon-innovators navigate difficult
informed consents, ensure the protection of this vulnerable
patient, and mitigate conflicts of interest. One weakness of
this framework is that IECs differ in role, scope, and
makeup by institution. Collaboration by surgical and ethical
societies to standardize or create minimal requirements for
IECs is necessary to ensure these committees are equally
prepared to assess this level of surgical innovation. Major
academic hospitals may partner with non-academic centers
to ensure their access to IEC expertise. As a caveat,
emergent cases that a surgeon deems to warrant an
operative innovation may supersede other ethical
considerations due to time constraints, so an emergent innovation
may warrant a lower level of oversight. For example, a
surgeon managing an adolescent with cystic fibrosis
complicated by bronchiectasis who presents with penetration
multiple gunshot wounds to the chest may seek a modified
conservative approach for repair to maximize salvage of
lung parenchyma, but the patient’s condition may demand
action before an IEC can convene. The surgeon must
depend on more expedient forms of oversight such as
discussion with colleagues or post hoc case conferences in
these emergent settings.
A more centralized oversight process coordinated by
regional or national professional societies is warranted to
ensure the ethical introduction of operative innovations that
involve an institutional conflict of interest, such as holding
financial stakes in a company funding an innovation, in
addition to human or scientific ethical challenges. While
the members of these centralized committees would have
similar multidisciplinary expertise as IECs, they mitigate
the effects of institutional conflicts of interest. Centralized
committees are entirely hypothetical in surgery, and a
major barrier to formation is restructuring professional
societies to incorporate them. Patient advocacy
organizations could work with state and national governments to
help fund these committees. An example case is alveolar
bone graft prior to odontic maturation for cleft palate repair
in a child flown in pro bono from an underdeveloped
country with the expectation of the department using this
case to promote its humanitarian work. It may be
reasonable to innovate on this patient early given that the patient
may not have future access to medical care; however, there
are human risks (justice for patient with less access to care,
vulnerable child patient) and scientific risks (very novel
procedure, so unclear risk–benefits) at play, as well as the
department’s benefiting from advertising this humanitarian
procedure. Once formed, centralized oversight committees
may integrate with IECs by sending unbiased
representatives to consult with them to maintain institutional
independence and to accelerate decision-making for
timedependent procedures. Again, emergent procedural
innovations that would otherwise warrant such oversight may
depend on less oversight given time restraints.
Current challenges requiring further exploration include
tools for surgeons to identify innovation and conflicts of
interest, the development of standardized case conferences
and IECs, and infrastructure that integrates oversight
seamlessly with surgical care. Data collection on the
efficiency and ease of the framework would aid procedures in
effective implementation of the framework. Ethical
considerations may be complex and surgeon-innovators may
seek multiple types of oversight simultaneously. For
instance, IRBs do not often contain multiple surgical
subspecialists as reviewer, so an IRB-approved study may
additionally benefit from departmental oversight of risk–
benefit calculations. Multi-institutional IRB-approved
studies may similarly benefit from departmental or regional
oversight to help weigh these calculations. Different
departments may be especially well attuned to the different
conflicts of interest and levels of ethical training in their
group, which could aid IRBs. IRBs may benefit from
inclusion of subspecialist consultants as well. The role of
insurers who decide which innovations to cover is
important to also consider as they influence which patients
receive innovations. The role of insurers in this framework
may vary depending on the healthcare system; for example,
a government-run single payer system acts broadly in
citizens’ interests, so it may conduct process checks for
adherence to this framework as a requirement for coverage
of innovations.
The ultimate decision on whether to seek oversight
currently rests with surgeons. This proposed framework
does not reduce a surgeon’s independence and ownership
over their patients; rather, it aims to protect patients from
risk and support surgeons through ethical quandaries to
allow them to keep their focus on innovating in the
operating room. Previous experience even suggests some
regulation may actively promote a culture of innovation
through offering assurance and confidence to innovators
that they are innovating in an approved ethical manner [
6
].
This quality improvement framework builds on the pillars
of surgical professionalism and education: competence,
integrity, humility, and consistency. This framework seeks
to align with historic surgical ethos to create a culture of
continual self-improvement in a learning environment
wherein everyone from patients to surgical interns to
renown surgeon-innovators benefits. These proposed levels
of oversight provide a consistent and ethically sound
method to introduce new innovations. The framework
should be introduced with care to ensure all faculties
understand its purpose and understand how to use it. It
should also accommodate local regulation and oversight,
the specific subspecialties in a hospital, and the patient
populations’ needs. Continuous improvement and
adjustments of the framework are necessary to ensure potential
benefit to patients.
Conclusion
Current methods to address ethical challenges to operative
innovation are inconsistent and open surgeons and patients
to risk. Possible oversight mechanisms for operative
innovation range from no oversight to formal IRB review.
Certain oversight mechanisms may be well suited to
regulate an attempt at innovation depending on the type and
degree of pertinent ethical challenges to ensure the
continued advancement of the field while protecting patients
and supporting surgeons.
Compliance with ethical standards
Conflict of interest All authors declare that they have no conflict of
interest.
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1. Bernstein M , Bampoe J ( 2004 ) Surgical innovation or surgical evolution: an ethical and practical guide to handling novel neurosurgical procedures . J Neurosurg 100 : 2 - 7 . https://doi.org/10. 3171/jns. 2004 . 100 .1. 0002
2. National Commission for the Protection of Human Subjects of Biomedical and Behavioral Research ( 1978 ) The Belmont Report: Ethical Principles and Guidelines for the Protection of Human Subjects of Research . US Government Printing Office, Washington, DC
3. Miller ME , Siegler M , Angelos P ( 2014 ) Ethical issues in surgical innovation . World J Surg 38 : 1638 - 1643 . https://doi.org/10.1007/ s00268-014-2568-1
4. London AJ ( 2006 ) Cutting surgical practices at the joints: individuating and assessing surgical procedures . In: Reitsma AM , Moreno JD (ed) Ethical gudielines for innovative surgery, 1st edn . University Publishing Group, Hagerstown, MD, pp 19 - 52
5. Giubilini A , Milnes S , Savulescu J ( 2016 ) The medical ethics curriculum in medical schools: present and future . J Clin Ethics 27 : 129 - 145
6. Sagar SP , Law PW , Shaul RZ , Heon E , Langer JC , Wright JG ( 2015 ) Hey, I just did a new operation!: introducing innovative procedures and devices within an academic health center . Ann Surg 261 : 30 - 31 . https://doi.org/10.1097/SLA.0000000000000748
7. Orlowski JP , Hein S , Christensen JA , Meinke R , Sincich T ( 2006 ) Why doctors use or do not use ethics consultation . J Med Ethics 32 : 499 - 502 . https://doi.org/10.1136/jme. 2005 .014464
8. Kim WO ( 2012 ) Institutional review board (IRB) and ethical issues in clinical research . Korean J Anesthesiol 62 : 3 - 12 . https:// doi.org/10.4097/kjae. 2012 . 62 . 1 . 3
9. Silberman G , Kahn KL ( 2011 ) Burdens on research imposed by institutional review boards: the state of the evidence and its implications for regulatory reform . Milbank Q 89 : 599 - 627 . https://doi.org/10.1111/j.1468- 0009 . 2011 . 00644 .x
10. Emanuel EJ , Wendler D , Grady C ( 2000 ) What makes clinical research ethical? JAMA 283 : 2701 - 2711
11. Broekman ML , Carriere ME , Bredenoord AL ( 2016 ) Surgical innovation: the ethical agenda: a systematic review . Medicine (Baltimore) 95 : e3790 . https://doi.org/10.1097/md.00000000000 03790
12. McCulloch P , Taylor I , Sasako M , Lovett B , Griffin D ( 2002 ) Randomised trials in surgery: problems and possible solutions . BMJ 324 : 1448 - 1451
13. Mansouri A , Cooper B , Shin SM , Kondziolka D ( 2016 ) Randomized controlled trials and neurosurgery: the ideal fit or should alternative methodologies be considered ? J Neurosurg 124 : 558 - 568 . https://doi.org/10.3171/ 2014 .12.JNS142465
14. Healey P , Samanta J ( 2008 ) When does the 'learning curve' of innovative interventions become questionable practice? Eur J Vasc Endovasc Surg 36 : 253 - 257 . https://doi.org/10.1016/j.ejvs. 2008 . 05 .006
15. Johnson J , Rogers W ( 2012 ) Innovative surgery: the ethical challenges . J Med Ethics 38 : 9 - 12 . https://doi.org/10.1136/jme. 2010 .042150
16. Hurst SA , Forde R , Reiter-Theil S , Slowther AM , Perrier A , Pegoraro R , Danis M ( 2007 ) Physicians' views on resource availability and equity in four European health care systems . BMC Health Serv Res 7 : 137 . https://doi.org/10.1186/ 1472 -6963- 7-137
17. Schwartz JA ( 2014 ) Innovation in pediatric surgery: the surgical innovation continuum and the ETHICAL model . J Pediatr Surg 49 : 639 - 645 . https://doi.org/10.1016/j.jpedsurg. 2013 . 12 .016
18. Lo B , Field MJ (eds) ( 2009 ) Conflict of interest in medical research, education, and practice . Washington (DC)
19. Biffl WL , Spain DA , Reitsma AM , Minter RM , Upperman J , Wilson M , Adams R , Goldman EB , Angelos P , Krummel T , Greenfield LJ , Society of University Surgeons Surgical Innovations Project T ( 2008 ) Responsible development and application of surgical innovations: a position statement of the Society of University Surgeons . J Am Coll Surg 206 : 1204 - 1209 . https://doi. org/10.1016/j.jamcollsurg. 2008 . 02 .011
20. Blakely B , Selwood A , Rogers WA , Clay-Williams R ( 2016 ) Macquarie Surgical Innovation Identification Tool (MSIIT): a study protocol for a usability and pilot test . BMJ Open 6 :e013704. https://doi.org/10.1136/bmjopen-2016 -013704
21. Scoap Collaborative WGftSC , Kwon S , Florence M , Grigas P , Horton M , Horvath K , Johnson M , Jurkovich G , Klamp W , Peterson K , Quigley T , Raum W , Rogers T , Thirlby R , Farrokhi ET , Flum DR ( 2012 ) Creating a learning healthcare system in surgery: Washington State's Surgical Care and Outcomes Assessment Program at 5 years . Surgery 151 : 146 - 152 . https:// doi.org/10.1016/j.surg. 2011 . 08 .015