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Defining Core competencies of the European Society for Sports Traumatology, knee surgery and arthroscopy



The European Society for Sports Traumatology, Knee Surgery and Arthroscopy (ESSKA) identified the need to develop a competency-based core curriculum for ESSKA specialists, against which all their educational activities, resources and priorities for development could be mapped. The aim of this study was to take a research-based approach to developing a competency-based core curriculum for ESSKA specialists.


A Core Curriculum Working Group, with experts representing the ESSKA Board, Sections and Committees, reviewed existing curricula and literature in their own specialist areas and developed a draft list of 285 core competencies for ESSKA specialists. All ESSKA members were asked to comment and rate the importance of these competencies, and the Working Group used these results to refine the curriculum.


Four hundred-forty responses to the online survey contained meaningful data. Almost all were ESSKA members, with broad representation of the countries, ages and backgrounds of the membership. All 285 core competencies were considered at least ‘Important’ for ESSKA specialists so are retained in the final curriculum, and no new competencies were added. 82 (29%) were considered ‘Essential’, constituting between 19% and 37% of the competencies within each specialist area. 96 (33.5%) were considered ‘Very Important’, and 107 (37.5%) ‘Important’.


A competency-based core curriculum for ESSKA specialists was achieved through a systematic and scholarly approach, involving both expert opinion and engagement of the wider ESSKA membership. The core curriculum addresses the identified need in terms of educational development for ESSKA and should also be of interest to the wider orthopaedic and sports medicine communities.


The European Society for Sports Traumatology, Knee Surgery and Arthroscopy (ESSKA, is an international membership organisation for specialists in degenerative joint disease and sports medicine. It brings orthopaedic surgeons and other musculoskeletal specialists together to share best practice, collaborate in research and education, publish journals and other resources, and organise courses and meetings – all with the ultimate goal of improving patient care. For many years, ESSKA’s Education Committee has been reshaping the educational activities provided by the society to its members, including updating and adding surgical skills courses in various specialist areas, developing a prioritised ‘Educational Roadmap’ for ongoing development, and launching the online ‘ESSKA Academy’ platform [1].As part of this process the development of a core curriculum was highlighted as an essential strategic priority, against which all existing educational activities and resources could be mapped, needs-analyses could be undertaken, and gaps and areas for development could be identified. This would then structure and inform all of ESSKAs future educational activities, and could be used as a template for selecting and developing processes for assessment and accreditation, and would also hopefully be of interest and use to those out-with ESSKA.

Core curricula have been defined for many healthcare disciplines, specialities and levels of training. For example, core Learning Outcomes / Competencies have been agreed across Europe for the Bachelor and Master (primary medical degree) in Medicine (e.g. Cumming and Ross 2008; Ross et al. 2014a), for postgraduate training and continuing professional development [2] [3] [4], and for research in medicine and related disciplines up to Doctoral level [5]. Core Learning Outcomes, Competencies, Objectives (often broken-down into Knowledge, Skills and Attitudes), Aims and, increasingly, ‘Entrustable Professional Activities’ (EPAs), are typicially used to define the core content which successful participants should learn during an educational course or programme [6, 7]. Core Competencies, which define what every member of a particular group can (or should) be able to do, can be considered as equivalent to Core Learning Outcomes in relation to a specific educational course or programme at the point of graduation [8] . Competency frameworks are more flexible than the other descriptors, however, as they can also be used to define what members of a group can do who are not associated with a single course or programme, and may have very different backgrounds, training and experience. For example, national Core Competencies have been defined in relation to teaching for all doctors involved in teaching or training [9] Such competency frameworks can be used to ‘map’ (cross-reference) educational events, resources and assessments of individual ability [10]. The International Society on Thrombosis and Haemostasis (ISTH) was one of the first medical societies to gain consensus on core competencies for clinical specialists in thrombosis and hemostasis worldwide [11], and they have now also developed core competencies for laboratory specialists in thrombosis and hemostasis, who have even more diverse backgrounds [12]. Because of the success of the ISTH projects, and similarities between these international societies, the ESSKA Board considered the ISTH approach as a helpful model to inform its own research. This aim of the present study was to develop a competency-based core curriculum for ESSKA specialists, covering all areas of specialist interest within the Society, against which all educational activities, resources and priorities for development could be mapped.


Many different approaches have been used to define core curricula - ranging from the opinions of one individual or group of experts, literature review and synthesis, opinion surveys, job analysis, and various other qualitative and quantitative research methods (Harden 1986). For the current study, it was agreed that a sequential approach combining expert group opinion, review and synthesis of existing literature and curricula, followed by a stakeholder survey to consider and rate a draft competency framework, would be most appropriate. Because of the diversity of backgrounds and areas of specialist activity within the ESSKA community, a single framework of core competencies with a modular design was chosen, so that individual members could easily identify the core competencies relevant to their own areas of practice and interest. It was decided that each competency would be defined in terms of the clinical condition or situation and the relevant procedure to manage this, and that further exploration of how and when individuals should achieve these would be deferred for future research. Groups of experts would be selected to research, develop and refine each of the specialist areas of the core curriculum, recognising that it was unlikely that any one individual would have sufficient expertise in all of the specialist areas covered by ESSKA. Managerial approval for the project was secured from the ESSKA Board, who confirmed that no additional ethical approval was required.

Expert group selection and drafting of curricular modules

The Core Curriculum Working Group was initially constituted of seven expert groups, reflecting the seven main areas of activity within ESSKA, led by the ESSKA Education Secretary (ML) with assistance from a medical educationalist (MR). Each expert group had a nominated member of the ESSKA Board, plus two nominated specialists from each of the following ESSKA Sections and Committees: Knee Arthroscopy (via the Arthroscopy Committee); Degenerative Knee (via the European Knee Association); Hip (via the Hip Committee); Sports Medicine (via the European Sports Medicine Association); Shoulder (via the European Shoulder Association); Foot and Ankle (via the Ankle & Foot Associates Section); and Elbow and Wrist (via the Elbow & Wrist Committee). Many of the expert groups recruited additional members based on their specialist skills and experience. Each expert group worked semi-independently in liaison with the educationalist to review the literature and relevant existing national and international curricula, including the content of existing and forthcoming ESSKA courses and training materials. They also liaised with colleagues and their associated Sections and Committees, and iteratively develop and agree an initial draft of core competencies for their own specialist area. Some documents were found to be relevant to multiple specialist areas and so were shared between them, such as the 2015 EFORT and 2000 AOSSM curricula [13,14,15], and various national curricula for orthopaedic trainees in Europe and elsewhere. In reviewing and drawing from such curricula, the expert groups were mindful to focus on developing a set of core competencies at an appropriate level for ESSKA members who have completed their specialist training and not, for example, another comprehensive curriculum for orthopaedic or sports medicine trainees.

Reviewing and synthesizing curricula from each specialist area

After sharing earlier drafts and multiple online meetings, the Working Group met in person to review, discuss and refine the early draft curricula from each of the seven expert groups. Areas of overlap were discussed, there was some movement of competencies between groups, and consensus was reached on formatting issues, nomenclature, scope, level of detail, a common structure and sequence for the curriculum, along with the next steps for refining the drafts and creating a single online stakeholder survey in English. The Working Group agreed to the Elbow & Wrist group’s proposal to focus more specifically on ‘Elbow & Forearm’; that the arthroscopic and degenerative knee groups would combine their efforts and draft curricula and become a single ‘Knee’ group; and that preventive and non-surgical procedures for all anatomical areas would be incorporated by the Sports Medicine group into a single set of ‘Sports & Exercise’ competencies. The resulting six expert groups then continued to work on their own areas of the core curriculum, incorporating the feedback and principles agreed by the Working Group, in liaison with their associated Sections and Committees, until satisfied that their draft list of competencies was ready for wider dissemination and feedback.

Online survey creation and pilot

A draft online survey was created in SurveyMonkey (, with the agreed competencies from each of the six expert groups, in the agreed sequence of Sports & Exercise followed by each anatomical area from Shoulder down. Consistent with the aims of the current research, the Working Group prioritised the perceived importance of each competency for ESSKA members, rather than exploring when or to what extent these should be achieved using a variation of Miller’s triangle (Miller 1990). Respondents were therefore initially asked to rate the importance of each competency (defined by the type of condition as a stem question followed by a series of specific procedures) on a 3-point Likert scale, whether they felt there was anything missing or unclear, and some demographic information. Respondents were also asked at what level of training course they would expect to see the competency covered, to guide future educational activities, but these did not inform development of the core competencies and so these questions and data are not reported here. The survey was then reviewed and piloted twice by members of the Working Group and others, who felt that the 3-point Likert scale was not sufficiently discriminatory, that the whole survey was lengthy, and some specialist areas were less relevant to certain individuals. It was therefore decided that stakeholders would be asked to rate the importance of each competency for ESSKA specialists on a 5-point Likert scale (1 = Not Important; 2 = Limited Importance; 3 = Important; 4 = Very Important; 5 = Essential) - both in their own main specialist area and as many of the other areas as they felt able to rate. Additionally, some duplication and overlap between specialist areas was removed – for example, steroid injection for frozen shoulder was removed from Shoulder as it was already covered by ‘Injection therapy’ in Sports & Exercise. There was also some resulting refinement and standardisation of terminology, such as changing ‘upper’ to the more anatomically-correct term, ‘proximal’. The Working Group then agreed a final list of 285 competencies (detailed in Table 2) for inclusion in the online stakeholder survey, with 42 in Sports & Exercise; 67 in Shoulder; 34 in Elbow & Forearm; 41 in Hip; 56 in Knee (combined arthroscopic and degenerative); and 45 in Foot & Ankle.

Stakeholder survey recruitment and information

An initial e-mail invitation to complete the online survey was sent to all 2954 ESSKA members, as well as 5814 ‘friends of ESSKA’ (former ESSKA members and participants in ESSKA congress, courses or fellowships). Two further reminders were sent to the whole membership, and some people were also directly encouraged to respond by colleagues in the Board or Working Group. Participants were informed about the research including how the draft competencies had been developed, the scope of the curriculum and clarification that it did not include all aspects of an orthopaedic training curriculum nor new and experimental procedures, and ethical issues such as consent and respondent anonymity. It was also made clear that all competencies implicitly assume the specialist has adequate facilities, resources and staff support to undertake the procedure and manage common complications (such as minor post-op infection and bleeding), as well as sufficient prerequisite training both generally (e.g. communication and infection control) and specifically for that procedure (including being able to appropriately assess the patient, select the most appropriate procedure, and have the knowledge and expertise to perform the full procedure safely and successfully). participants were then asked to respond to all questions related to their own specialist area and as many of the other areas as they felt able to rate, as well as some demographic questions. Figure 1 shows a typical screenshot from the online survey.

Fig. 1

Example screenshot from online survey

Analysis of findings and expert group decisions

After sufficient responses had been collected, the survey was closed and the data were exported, sorted and provisionally analysed in Excel. Responses which did not contain meaningful data were removed, and the ratings were analysed in various ways, including calculating the Mean rating of all responses for each competency, the Mean rating for the subgroup of respondents who specialised in that particular area, and the percentage of all respondents who indicated each competency should be Essential or Very Important. Demographic data were also summarised, and all free-text responses were collated in a single document for analysis. A teleconference was then arranged for each of the six expert groups with the Educationalist to review and make some collective decisions related to the survey findings in each of their specialist areas. First, with the competencies ranked by Mean of all responses, the expert groups were asked to consider how many Likert scale ‘Levels’ these represented, and whether any of the lowest-rated Mean competencies should be removed from the draft list. Second, the expert groups were asked to select an appropriate cut-off between each Level, with the competencies ranked by the percentage of respondents indicating it should be higher than this (i.e. the percentage who rated competencies as 5 for the cut-off below ‘Essential’, and as either 4 or 5 for the cut-off below ‘Very Important’). Third, each expert group also reviewed all the free-text comments to determine whether any competencies should be added or reworded.


Respondent demographics

The survey was open from 15th May to 15th August 2019. There were 625 responses in total, 440 of which contained meaningful data. The largest proportion of respondents (43%) indicated that Knee-Arthroscopy best represented their speciality, with smaller numbers indicating Knee–Degenerative (17.4%), Shoulder (14.1%), Sports Medicine (13.8%), Foot & Ankle (5.8%), Hip (2.7%), Elbow & Forearm (0.8%), and ‘Other’ (2.4%, clarified as combinations of the above or related sciences). The average age of respondents was 46, ranging from 26 to 73 years. Respondents were mostly experienced surgeons, with 34.5% indicating they had worked for 11–20 years after completion of training; 23.8% for ≥21 years; 17.4% for 6–10 years; 16.7% for up to 5 years; and 3.6% were still in postgraduate training. There were also small numbers of scientists (2%), physiotherapists (1%) and ‘Others’ (0.7% - clarified as academics). Respondents represented a broad range of ESSKA member nationalities, specifically: Spain and Greece (22% each); Germany (20%); Italy (19%); Poland (14%); Portugal and Romania (both 12%); the UK and Switzerland (9% each); France, Denmark and Turkey (8% each); Belgium and Austria (7% each); Norway and Bulgaria (6% each); the Netherlands, Ukraine, Russia and Japan (5% each); Sweden, Finland and Croatia (5% each). 97% of respondents indicated they were current ESSKA members, with the others being ‘friends of ESSKA’.

Rating of survey competencies and expert group decisions

As expected from the highly-specialised and modular nature of the draft core curriculum, many respondents left some subject areas of the questionnaire blank. All of the Sports & Exercise competencies, which were presented first in the survey, were rated by at least 400 respondents. The Knee competencies were each rated by at least 238 respondents, and the Shoulder competencies by at least 226 respondents. The other three subject areas had a combined average of 122 ratings per competency, with the lowest being 109 ratings for one of the Foot & Ankle competencies. The lowest Mean rating for any competency by all respondents was 2.73. When the competencies were reviewed by Mean rating in each specialist area, each of the expert groups agreed that the Means could be grouped into three Levels: 3 (Important), 4 (Very Important) and 5 (Essential). They also agreed that all of the draft competencies were considered to be important enough to remain in the final framework. Each expert group identified and agreed appropriate cut-offs in the ranked competencies to define these three Levels, considering both the ratings and the face-validity of the specific competencies on either side of the cut (Table 1).

Table 1 Cut-offs between ranked competencies agreed by expert groups

Table 2 shows the full list of 285 competencies, arranged by Mean rating for all responses within each specialist area. It also shows the Mean rating for the subgroup of respondents who indicated that this was in their own specialist area for comparison; the percentage of all respondents who rated each competency as Essential (5/n); the percentage of all respondents who rated them as either Very Important or Essential (4 + 5/n); and the Level these were allocated-to by each expert group based on the cut-offs they had agreed. Of note, there were only three competencies where the Mean rating of area specialists was more than one point of difference from the Mean of all responses, which have been highlighted in bold in Table 2.

Table 2 For insertion in the results section as indicated above

Free text analysis

There were relatively-few free-text responses, most of which were brief and statements rather than suggestions. These included some positive free-text comments about the draft competencies, such as, “Great idea – happy to support”, “It is very detailed very good work”, and “My opinion is that you have covered all important issues”. Several wrote that they had no additional comments, and two indicated that the questionnaire seemed too long. Each expert group reviewed all the free-text comments, paying particular attention to those relating directly to their specialist areas, and agreed there were no new competencies or changes to existing competencies which needed to be incorporated. They felt that some suggestions were already represented in the framework (e.g. “Rupture distal biceps tendon”), others were either too new and experimental (e.g. “Regenerative medicine options”) or no-longer popular (e.g. “Resurfacing arthroplasty of the shoulder”), and some were out-with the scope of the ESSKA competency framework (e.g. “Ethics” and “FIFA protocols”).


Main findings of this study

The primary finding of this study was the successful development of an evidence-based framework of core treatment competencies for a specialist working in the areas of Knee, Shoulder, Elbow & Forearm, Foot & Ankle and Hip surgery, as well as Sports Medicine. Achieving the aim of this study also supports and allowed the membership to reflect-upon and offer feedback on, ESSKA’s educational strategy and proposed future development more generally. The research involved senior experts in the ESSKA Board, Sections and Committees as well as the wider membership of the society representing 23 countries and a broad range of ages and levels of experience. It also established the level of importance attributed to each of the different competencies by ESSKA members and senior area specialists. The combination of sequential literature review and expert group opinion from area specialists, stakeholder survey and then review and review and incorporation of the results by the expert groups again is a powerful one. To our knowledge, this is the first scientific approach to define and gain consensus on Core Competencies in these specialist areas and, like the ISTH methodology which helped inform but ultimately was different to the current study [11], it is hoped that others international specialist societies may find this approach helpful.

There is significant variability in the way in which specialist in orthopaedics and sports medicine are trained around Europe and the World [16]). Whilst there are some influential and very useful postgraduate training curricula in areas very relevant to ESSKA specialists [3, 13,14,15], these have been designed as training curricula. They include both additional information which does not need to be defined for ESSKA specialists (such as the basics of patient care and surgical management, or specialist areas out-with the focus of ESSKA), and lack detail in many of the competencies which ESSKA specialists will typically only achieve after completion of specialist training.

Limitations of this study

Because of the very uneven demographics of respondents between for example Knee and Elbow & Forearm surgeons (which reflects the ESSKA membership), the relatively low response-rate particularly in specialist areas which are under-represented in the ESSKA membership, and the varied interest patterns and areas of expertise leading to most respondents understandably leaving whole subject areas of the questionnaire blank, it was felt that it would not be appropriate to undertake more detailed statistical analysis of correlation coefficients or measures of consensus as has been done elsewhere (e.g. [8, 11]. It was also postulated that the smaller number of area specialists compared to non-specialists rating competencies in some areas might skew the overall Mean and Level to which the competencies were allocated. It was therefore reassuring to find that there were only three competencies where the Mean rating of area specialists was more than one point of difference from the Mean of all responses, and the first of these (3rd in Elbow & Forearm) would clearly have made no difference as a Mean of 5 would have been allocated ‘Essential’ anyway. The second (last in Elbow & Forearm: “Ulnohumeral osteoarthritis: Arthrodesis”) had a Mean of ‘Limited Importance’ from area specialists and more of a candidate for removal from the framework, although it was felt the subgroup of specialist area respondents was really too small on which to base such a decision at this stage. The third (17th in Hip: “Bony deformities: Subspine impingement decompression”), however, was rated significantly higher by the area specialists and could have been moved up two Levels from Important to Essential. It is not clear why there was such a discrepancy, but it is an interesting area for further discussion and research. Also, as highlighted in the free-text comments, the survey was longer than we would have hoped, and it may be that there was an element of ‘survey fatigue’ which led to the first Sports & Exercise area gathering greater responses than the later areas of the survey – at least from respondents who did not indicate that they were primarily specialists in that area.

Implications for practice and further research

This curriculum project will form the basis for an evidence-based restructuring of ESSKA’s educational activities to support the achievement of these core competencies needed to practice within the various ESSKA specialist areas. This process will involve restructuring and adding surgical skills courses, and mapping relating content in ESSKA’s educational platform: “The ESSKA Academy” [1], to support both theoretical and practical training in the ESSKA Core Competencies. This research has also highlighted a number of areas for future development, not least how and when each of these competencies can best be learned and assessed. The ESSKA core curriculum can also be used by other societies and educational providers to strengthen their educational activities.


A modular framework of 285 core competencies for ESSKA specialists across all six key specialist areas was developed through a systematic and scholarly approach, involving both expert opinion and engagement of the wider ESSKA membership. The importance of these competencies was reflected in the high ratings attributed to them by society members. This addresses the identified need in terms of defining a core curriculum and ongoing mapping and educational development activities for ESSKA and should also be of interest to the wider orthopaedic and sports medicine communities.

Availability of data and materials

Anonymised spreadsheets of the data can be made available on request.


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The authors would like to thank members of the ESSKA Board and Working Group, specifically: Romain Seil, David Dejour, Jacques Menetrey, Roland Becker, Joan Carlos Monllau, Michael Hantes, Mustafa Karahan, Hélder Pereira, Henrique Jones, Mike Carmont, Werner Krutsc, Tom Ludvigsen, Emmanuel Antonogiannakis, Emmanuel Brilakis, Giuseppe Milano, Raul Barco, Michel van de Bekerom, Paulo Arrigoni, Bent Lund, Nicolas Bonin, Filippo Randelli, Vincenzo Condello, Marco Bonomo, Sufian Ahmad, Simon Donell, Daniel Haverkamp, Ákos Kynsburg and Thomas Bauer. They would also like to thank the ESSKA administrative staff: Zhanna Kovalchuk, Joseph Ramesh and Amanda Olsen, and all those who responded to the online survey.


ESSKA funded travel and expenses for the Expert Group meeting; the educational consultant; administrative support and online services.

Author information




Both authors were involved in all aspects of the planning and execution of this research. MR undertook the initial data analysis and write-up, and both authors developed the draft and agreed the final version for publication. The author(s) read and approved the final manuscript.

Corresponding author

Correspondence to Martin Lind.

Ethics declarations

Ethics approval and consent to participate

Ethical and managerial approval were provided by the ESSKA Board. Participants were fully informed about the study before agreeing to participate.

Consent for publication

Not applicable.

Competing interests

ML is the Educational Secretary for ESSKA, with no other conflict of interest. MR was contracted by ESSKA to assist with the research, with no other conflict of interest.

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Ross, M.T., Lind, M. Defining Core competencies of the European Society for Sports Traumatology, knee surgery and arthroscopy. J EXP ORTOP 7, 58 (2020).

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  • Curriculum
  • Core
  • Competencies
  • Orthopaedics
  • Sports medicine
  • Survey