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Journal Pre-proof Biomedical origins of the term osteopathic lesion and its impact on people in pain Monica Noy, Luciana Macedo, Lisa Carlesso PII: S1746-0689(19)30135-X DOI: https://doi.org/10.1016/j.ijosm.2020.06.002 Reference: IJOSM 545 To appear in: International Journal of Osteopathic Medicine Received Date: 1 September 2019 Revised Date: 13 May 2020 Accepted Date: 30 June 2020 Please cite this article as: Noy M, Macedo L, Carlesso L, Biomedical origins of the term osteopathic lesion and its impact on people in pain, International Journal of Osteopathic Medicine (2020), doi: https:// doi.org/10.1016/j.ijosm.2020.06.002. This is a PDF file of an article that has undergone enhancements after acceptance, such as the addition of a cover page and metadata, and formatting for readability, but it is not yet the definitive version of record. This version will undergo additional copyediting, typesetting and review before it is published in its final form, but we are providing this version to give early visibility of the article. Please note that, during the production process, errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. © 2020 Published by Elsevier Ltd. https://doi.org/10.1016/j.ijosm.2020.06.002 https://doi.org/10.1016/j.ijosm.2020.06.002 https://doi.org/10.1016/j.ijosm.2020.06.002 1 Biomedical Origins of The Term Osteopathic Lesion and Its Impact on People in Pain Monica Noya Luciana Macedob macedol@mcmaster.ca Lisa Carlessob carlesl@mcmaster.ca a. Private Practice - Move Pain Care, 738 Spadina Ave, Toronto, ON, Canada, M5S 2J8 b. School of Rehabilitation Science, McMaster University, 1400 Main St. W Institute for Applied Health Sciences, Hamilton, Canada, L8S 1C7 Corresponding Author information: Monica Noy 738 Spadina Ave, Suite 200, Toronto, ON M5S 2J8 Tel: 1-647-981-6871 E-mail: monicanoy@gmail.com Declaration of Interest: None 1 Biomedical Origins of The Term Osteopathic Lesion and Its Impact on People in Pain Declaration of Interest: {Name of author} is a member of the International Advisory Board of the Int J Osteopath Med but was not involved in review or editorial decisions regarding this manuscript. 2 Abstract Osteopathic manual practitioners in Canada use, and continue to be educated to use the term osteopathic lesion. This term is either derived from or directly drawn from the biomedical model; the overarching framework through which most healthcare is delivered. Use of the term illustrates the adoption and misappropriation of a biomedical term and follows the same curative reasoning processes as in biomedicine. Manual osteopathic practitioners in Canada believe the osteopathic lesion to be a palpably detectable entity. Use of the term could arguably be capable of eliciting nocebo and iatrogenic symptom effects. The origin of, and potential iatrogenic consequences of using the term with patients appears to be largely invisible to osteopathic practitioners. Awareness of the origin and use of this term and potential problems for patient- centred osteopathic care are necessary before comprehensive transformation in education and practice standards at the association and educational levels can be adopted. Key words: Biomedical, biopsychosocial, iatrogenic, language, lesion, musculoskeletal, osteopathic manual practitioner 3 Language has the potential to influence thoughts, beliefs, and actions in positive and negative ways(1–3). In healthcare, language ideally provides the patient with knowledge and tools for understanding, resolving or managing their symptoms. The words used within patient- provider interactions are context dependent, and based on a complex interaction of content, values, social identity and setting (4). The biomedical model is the overarching framework through which most healthcare is delivered in Canada and from which the dominant discourse in healthcare arises (5–7). In the United States, osteopathy is primarily a medical practice within a biomedical context (8). Manual osteopathic practice in most countries, including Canada, is not medical and uses primarily hands-on techniques during treatment (8,9). Manual osteopathy was invented in opposition to the dominant medical paradigm at the time, but its identity within a larger healthcare context is still debated (10–13). However, some of the language used in manual osteopathy is either derived from or directly drawn from the dominant biomedical discourse. In Canada, the predominant construct of the ‘osteopathic lesion’ has been, and still is being used as an organizing principle of osteopathic clinical reasoning (14–18). The use of the term lesion in manual osteopathy illustrates the adoption and misappropriation of a biomedical term. The term lesion has a shared meaning in medicine and in the lay population that is not retained in the manual osteopathic context. Given the potential for misunderstanding of common medical terms, use of the same term with an altered definition may be problematic for patient understanding and could arguably be capable of eliciting nocebo and iatrogenic symptom effects in much the same way as in a medical setting (1,19). 4 The Biomedical Model Engel described the biomedical model as a scientific model that accounted for disease on a somatic level independent from social, psychological and behavioural influences (7). Though Engel argued for replacement of the biomedical model, that did not occur. Instead, Fuller proposes that the current or ‘old’ biomedical model described as “physicians cure biological disease using biomedical mechanistic reasoning” (p. E640) has been partially influenced by the biopsychosocial model, resulting in a blend of old practices mixed with new evidence-based clinical guidelines (6,20,21). The biomedical model remains the primary construct under which most medical and musculoskeletal practitioners still operate (22,23), and even with the increasing influence of the biopsychosocial model, Fuller argues that it maintains many disadvantages such as reductionism and fractured care(6). The compartmentalization of care in Canada occurs through rationing of patient access to one medical issue per visit (24), and with specialization throughout the system(25). This type of care keeps the focus of treatment away from the patient’s whole experience of illness and sustains the use of metaphors such as ‘medicine is war’ and the ‘body as machine’(26,27). In musculoskeletal care these medical metaphors encourage secondary metaphors about being mechanical in movement (biomechanics), in structure (alignment), and in our ability to repair (correcting or fixing) (26). In osteopathy, these concepts are exemplified in the use of the osteopathic lesion as one of the central constructs on which the profession was built. The Osteopathic Lesion as a Biomedical Construct 5 The use of the word lesion in osteopathic practice in Canada and in many other countries follows the same curative reasoning processes as in biomedicine, mimicking rather than rejecting its main premises. The common and easily accessible meaning of the word lesion in a medical sense is that of a disruption of tissues due to injury or illness that is visible to either the naked or microscopic eye (28,29). Osteopathic use of the term retains the fundamental medical and lay definition as that of a disruption of tissues, but changes the focus of this disruption to a non- visible functional one rather than a demonstrable pathology or injury (17). Though the term osteopathic lesion has been changed to somatic dysfunction, the definition is the same: “Impaired or altered function of related components of the somatic (body framework) system” (17). It is a non-pathological disruption of an otherwisenormal activity of the body that cannot be seen by the naked or microscopic eye and is findable only through skilled osteopathic palpation (16,30). This alteration of the medical definition for osteopathic use has evolved to include many different types of complex and compounding lesions that can affect almost every body part, and have cascading effects on every body system (17). Despite the change to somatic dysfunction, in Canada use of the term lesion is still commonplace (14,18,31,32). The exact meaning of the term osteopathic lesion remains unclear and is still under debate within the global osteopathic community (14,16). Introduction of the term into the medical arena in 1935 through a book titled The Osteopathic Lesion was highly criticized by the British Journal of Medicine for its lack of scientific validity (33). Recently, Fryer explored the relevance of somatic dysfunction of the spine within osteopathic practice and recommended use of the label for diagnostic purposes in a practice setting be discontinued (16). Instead, Fryer described a confluence and variability of physiological factors that could be considered part of the assessment of a somatic dysfunction(16). 6 The Disconnect Between Tradition and Evidence A significant number of osteopathic practitioners in Canada are taught traditional osteopathic principles, and come to believe that the osteopathic lesion or somatic dysfunction is a detectable entity found by osteopathic palpation (14,16,18,34). The lesional construct has consistently been questioned, and though attempts have been made to mechanistically explain the functional construct, there is no clear consensus of definition or mechanism that has emerged (14–16,33,35). Manual and to some degree medical osteopaths have considered their profession as distinct from biomedicine (10,36) but the fundamental overlap of the use of the term lesion and its biomedical origins has been absent from the discussion around professional identity. The impact of the use of the term lesion on patient understanding has not been specifically examined. However, studies examining clinician beliefs and patient perceptions of language used in an osteopathic setting reveal that patient beliefs about their pain can be negatively influenced by words used by the therapist (22,37). The Iatrogenic Potential of The Osteopathic Lesion In clinical healthcare settings the iatrogenic potential of the words used and the impacts they may have are often outside of the conscious awareness of both the health professional and the patient (3,38–40). Practitioners who provide their patients with osteopathic lesions as causes for symptoms are confining themselves to a single reasoning criterion, and are likely unaware of broader knowledge contexts for providing a patient-centered healthcare exchange (41). 7 Moseley and Butler argue that diagnostic language is often metaphorical, almost always unhelpful or wrong, and often provided without further clarification of the literal meaning (26). For example, in a magnetic resonance imaging study, participants reported negative emotional impacts from descriptions of demonstrable lesions such as those found on reports (42). Greater understanding, higher satisfaction and usefulness of the information was stated when the reports were reworded to an eighth-grade reading level and defining words for the pathology were removed. Given the lack of clarity around the definition of the term osteopathic lesion, it cannot be expected that the meaning will be conveyed with any clarity to the patient. This misunderstanding may impact the patient’s perception of their own illness and their beliefs around its cause and resolution (43). The labeling of a symptom set as one caused by an osteopathic lesion may not be that different to providing a diagnostic label for a condition such as disc degeneration. If the language used is not qualified, or if the patient’s health literacy is low, the impact of these words will be different from the information that is intended to be conveyed. Any further associated pain or tension symptoms may become identified with the diagnosis (1,22). The osteopathic lesion label also provides an associated single cause for a variety of symptoms that require the patient to seek specialist treatment to find a resolution. This construct extends biomedical reasoning outside of appropriate practice settings. For example, attributing the cause of low back pain to a perceived anomaly such an osteopathic lesion runs contrary to evidence-based best-practice recommendations(20). This single-cause link with pain could, in part, contribute to life-long negative associations in a chronic condition with, ultimately, inadequate resolution. if the conditions develops into to the development of a chronic 8 condition that has life-long implications of pain, suffering, and disability with ultimately inadequate resolution (23,37,40,44). For People Living with Pain The research evidence for treating people living with pain strongly rejects equating structural or functional findings as causal for pain and is becoming more supportive of multi- practitioner, multimodal, patient-centred and biopsychosocial approaches (20,22,45–49). Yet, osteopathic manual practitioners, like most musculoskeletal therapists are still educated using outdated, biomedical dualistic concepts that link structure with symptoms, conflating the understanding of nociception and pain (50, 51). This conflation is also still sticky within biomedicine and is a source of considerable confusion in research, medicine, and musculoskeletal therapies, making change more difficult to enact (26,44,52,53). Evidence that clearly demonstrable lesions such as disc herniations are common, often found incidentally, and cannot be directly correlated to a person’s experience of pain(54) compound the problems associated with use of the term osteopathic lesion. If association of a demonstrable lesion has been shown to have a non-linear relationship with the symptom of pain, then associating a non- demonstrable lesion to explain the same symptom potentially adds to the confusion of cause for the person in pain. Eccleston and Crombez outline a misdirected problem-solving model and perseverance loop that occurs when patient symptoms remain unresolved by treatment(55). Patients worry about their symptoms and persist in seeking treatment from a variety of therapies that promise to resolve them. In the absence of an apparent somatic cause, practitioners continue to search for 9 something presented through the body that can be used to explain the symptoms. An illustration of this might be what the Neuro Orthopaedic Institute calls the Sea of Endless Professionals on the road to recovery (56). Though each wave in this sea is its own entity, in this illustration it represents a different musculoskeletal profession that has its own way of determining the cause and treatment for the persons’ pain. The osteopathic patient who is led to believe a lesion causes pain will expect that, if the pain returns with activity, that movement either caused a new lesion or activated a recurring lesion. Similar to being provided with a structural cause for low back pain, being given an osteopathic lesion could become a permanent negative association leading to fear of the movement that recreates the pain (40). As with being given findings of a disc herniation, the person may believe that they have and will always have a lesion in the presence of an associated pain. Future Direction for the Profession In the last five years the international osteopathic research community has been prolific in exploring, understanding, defining, and addressing the knowledge gaps in evidence that exist for osteopathic practitioners to treat people who live with pain(11,22,57–64). The research encourages comprehensive questioning of traditional concepts in light of current science, and introduces ways of envisioning osteopathic manual practice from an evidence-based perspective. There are comparatively fewer Canadian osteopathic researchers who can engage the community at this level, and there are insufficient tools for translating the research into practice at the association and educational levels. As such, the osteopathic lesion or somatic dysfunction remains a primary educational principle of the profession. 10 Providing practitioners and institutions with an understanding of the construct of the lesion as derived from the biomedical paradigm is a necessary first step for providing the community with a logical context to reframe and move on from traditional reasoning and engage with emerging research and evidence-based practices. Recognition of the iatrogenic potential of the term would encourage educational institutions to remove it from curricula, and associations to advocate for discontinued use in a clinical context. The term osteopathic lesion describes a confluence and variability of factors that could reasonably be replaced with more specific commonly recognized descriptors already used within musculoskeletal practice. 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Sundberg T, Leach MJ, Thomson OP, Austin P, Fryer G, Adams J. Attitudes, skills and use of evidence-based practice among UK osteopaths: a national cross-sectional survey. BMC Musculoskeletal Disorders. 2018 Dec 8;19(1):439. September 1, 2019 Conflict of Interest: None This research did not receive any specific grant from funding agencies in the public, commercial, or not- for-profit sectors. Monica Noy