Statement of Principles concerning sprain and strain (Reasonable Hypothesis) (No. 27 of 2020)

The Statement establishes a compact set of medical and procedural concepts that determine whether a “reasonable hypothesis” exists linking sprain or strain (or death from them) to a veteran’s relevant service. Core concepts are defined in the body and the Schedule and are the basis for decision-making under the VEA/MRCA claim provisions cited in s 5.

Sprain and strain are defined by site, tissue type and temporal onset. Sprain is limited to tearing or stretching of joint ligaments with onset of pain and tenderness within 24 hours of the injury; it includes complete ligament rupture and expressly excludes recurrent sprain due to joint instability (s 7(2)). Strain is tearing or stretching of a muscle or tendon with onset of pain and tenderness within 24 hours; it includes complete rupture and excludes drug‑induced disease of tendons or muscles (s 7(3)). These definitions impose clinical timing and aetiological requirements (the 24‑hour onset window and exclusions) that will drive the admissibility and weight of medical evidence.

Death from sprain or strain is captured where sprain or strain contributed to a person’s terminal event or condition (s 7(4)). The Schedule explains “terminal event” as proximate or ultimate causes of death and lists examples such as pneumonia, respiratory failure, cardiac arrest, circulatory failure and cessation of brain function (Schedule 1, terminal event). That links non‑orthopaedic terminal failure to ante‑mortem sprain/strain where contribution can be demonstrated.

The decision threshold is the “reasonable hypothesis” standard: s 9 opens with the requirement that at least one of the enumerated factors must exist before it can be said a reasonable hypothesis has been raised connecting sprain or strain (or death from them) with the circumstances of relevant service. The listed factors are mechanistic: significant physical force applied to or through the affected joint at clinical onset or at clinical worsening for sprains (ss 9(1) and 9(3)); forceful stretching or high intensity use of a muscle or tendon at clinical onset or clinical worsening for strains (ss 9(2) and 9(4)); and inability to obtain appropriate clinical management for sprain or strain (s 9(5)). The instrument includes notes giving examples of activities for the force/use factors; those examples illustrate typical factual patterns but are framed as examples.

The relationship to relevant service is a separate, threshold requirement: section 10(1) requires that the existence of any factor in s 9 must be related to the relevant service rendered by the person. Section 10(2) narrows the application of factors in ss 9(3)-9(5): those apply only to material contribution or aggravation of a pre‑existing sprain or strain where that condition was suffered or contracted before or during (but did not arise out of) the person’s relevant service. Finally, s 11 provides that where a factor refers to an injury or disease covered by another Statement of Principles, the factors in that other Statement apply in accordance with that Statement as in force from time to time; this creates a cross‑reference mechanism between Statements of Principles.

This Statement primarily affects three categories of actors identifiable from the instrument: claimants (veterans and certain members of the Forces), medical and allied health practitioners providing evidence for claims, and administrative decision‑makers under the VEA and MRCA who assess entitlement.

Claimants: The instrument applies to claims “to which section 120A of the VEA or section 338 of the MRCA applies” (s 5). The Schedule defines “relevant service” as operational, peacekeeping, hazardous, British nuclear test defence service under the VEA, and warlike or non‑warlike service under the MRCA (Schedule 1). Thus, service members or veterans who have undertaken one of those categories of relevant service and who assert that their sprain, strain or death from such conditions is connected to that service will be directly affected because the Statement provides the medical criteria that must be met for a reasonable hypothesis to be raised (s 9).

Medical practitioners and experts: The definitions in s 7 require evidence of clinical onset (pain and tenderness within 24 hours) and, for some factors, documentation of significant force or high intensity use at the time of onset or clinical worsening (s 9). Practitioners will be the primary source of that evidence; their record keeping and diagnostic reporting practices will therefore affect the outcome of claims. The instrument’s exclusions,recurrent sprain due to joint instability (s 7(2)(c)) and drug‑induced disease of tendons or muscles (s 7(3)(c)),impose diagnostic boundaries that clinicians must address in reports.

Decision‑makers and administrators: The Repatriation Medical Authority made the Statement under its statutory power (s 3). The Statement is a legal instrument used by decision-makers administering the VEA and MRCA; it determines whether a “reasonable hypothesis” exists linking the condition to service, and hence will influence the preliminary assessment stage of claims. Section 11 creates interdependence between Statements when a factor refers to an injury or disease covered by another Statement, requiring decision‑makers to apply the other Statement’s factors “as in force from time to time.”

Indirectly affected parties: Insurers, employers, legal advisers and forensic clinicians involved in contested claims will also be affected because the Statement sets the medical thresholds and definitions that shape competing expert opinions and administrative outcomes. However, the instrument itself does not create payment obligations or specify benefit levels; it supplies medical criteria which feed into the decision processes established by the VEA and MRCA (s 5).

The instrument delineates standards and thresholds rather than prescriptive duties or civil rights; it supplies the medical criteria used by decision-makers under the VEA and MRCA. Nevertheless, it creates practical obligations on claimants and clinicians and confers evidentiary expectations relevant to administrators.

Duty to establish a reasonable hypothesis: Section 9 establishes the minimum factual foundation that must exist for a reasonable hypothesis to be said to be raised connecting sprain, strain or death from them to relevant service. That places a duty, effectively on a claimant (supported by clinical evidence), to show at least one of the enumerated factors (ss 9(1)-9(5)). The Statement does not prescribe procedural steps for satisfying that duty, but it sets substantive content that must be met when claims are assessed under s 120A VEA or s 338 MRCA (s 5).

Duty to relate factors to relevant service: Section 10(1) requires that any factor in s 9 “must be related to the relevant service rendered by the person.” That creates an evidentiary duty to connect the factual factor (for example, a fall or heavy lifting event) with the period and type of relevant service described in Schedule 1. The Schedule’s definition of “relevant service” (e.g. operational, peacekeeping, warlike) matters to this duty.

Clinical reporting expectations: The 24‑hour onset requirement in the definitions of sprain and strain (s 7(2)(a) and s 7(3)(a)) and the need to identify pain and tenderness impose a practical obligation on treating clinicians and forensic examiners to document onset timing and clinical findings. The exclusions in s 7(2)(c) and s 7(3)(c) require diagnostic differentiation (for example, recurrence due to joint instability or drug-induced tendon disease) in clinical reports.

Right to claim and have claim assessed: By applying to claims under specified provisions of the VEA and MRCA (s 5), the Statement supports a claimant’s right to have claims involving sprain or strain assessed against these medical criteria. The Statement itself does not create or deny entitlements; it provides the medical test applied in the entitlement process governed by VEA/MRCA. The Repatriation Medical Authority’s statement at s 8, that there is sound medical‑scientific evidence linking sprain/strain to relevant service, is a normative foundation used by decision-makers, but it is not in itself a grant of rights.

Cross‑reference duty: Section 11 imposes an obligation on decision‑makers to consult and apply other Statements of Principles where a factor refers to an injury or disease covered by those Statements. That means a duty on administrators to identify when overlap exists and apply the other Statement “as in force from time to time,” not merely the text contemporaneous with the present instrument.

No civil or criminal penalties in the instrument: The Statement does not create penalties or offences; it is an evidentiary and definitional instrument intended for use in claim determinations (see s 3 and s 5). Any sanctions for fraud or misuse would arise under the underlying Acts or other laws, not from this instrument.

The Statement itself does not create offences, civil penalties or a distinct enforcement regime. It is a Statement of Principles made under subsection 196B(2) of the VEA (s 3) and is designed to supply medical criteria for claim assessment; enforcement of entitlement decisions, and any penalties for false claims or fraudulent conduct, are governed by the VEA, MRCA or other applicable laws rather than by this instrument. The instrument therefore functions as an administrative evidentiary standard rather than a penal code.

Operational enforcement effect: The practical enforcement effect of the Statement is that decision‑makers assessing claims under s 120A of the VEA or s 338 of the MRCA (s 5) will apply the instrument’s definitions and factors when deciding whether a reasonable hypothesis has been raised that links a claimant’s sprain/strain to relevant service (s 9). If a claimant cannot show any of the listed factors related to relevant service, decision‑makers will lack the trigger (the reasonable hypothesis) that often precedes further benefit entitlements or the need for additional evidentiary development under administrative processes. So enforcement is indirect: the instrument tightens or clarifies the medical threshold decision-makers apply.

No express disciplinary powers or compliance inspections: The Statement contains no express powers to require medical examinations, seize records, or impose disciplinary measures on practitioners. It does not on its face empower the Repatriation Medical Authority to compel clinical evidence beyond the ordinary statutory powers under the VEA or MRCA. Any compulsory information-gathering or enforcement activity would derive from the enabling Acts or administrative procedures, not from the Statement text.

Reliance on underlying statutes for remedy and appeal: The Statement should be read as an input to the statutory decision-making process in the VEA and MRCA. Remedies, appeals and review mechanisms available to claimants are therefore those provided by the VEA/MRCA framework and administrative law, not specified in the Statement. The Statement’s content will be a dispositive factor in initial administrative determinations and likely influential in review settings because it is the Authority’s view of the medical‑scientific evidence (s 8).

Relevance of repeal: The repeal of the earlier Statement (s 4) means that as of the commencement date (s 2), decision‑makers must apply the new criteria. Practitioners and decision‑makers must therefore ensure the correct Statement is applied to claims arising after commencement; incorrect reliance on the repealed Statement could be raised in review of administrative decisions, but the Statement itself does not prescribe penalties for misapplication.

The Statement is expressly layered into the statutory framework created by the VEA and the MRCA. Section 3 records its making under subsection 196B(2) of the VEA; section 5 states it applies to claims to which section 120A of the VEA or section 338 of the MRCA applies. The Statement therefore functions as a medical determinant within the decision-making architectures of those Acts.

Interaction with VEA and MRCA claim mechanics: The Statement supplies the medical content that answers whether a “reasonable hypothesis” is raised in a claim. The Statement does not substitute for statutory definitions of entitlement, nor does it set out procedural rights, appeal routes or payment rules, which remain governed by the VEA and MRCA provisions cited in s 5. Decision‑makers must therefore first identify the statutory claim pathway under the VEA or MRCA and then apply the Statement as the relevant medical standard when evaluating sprain and strain issues.

Cross‑Statement interplay: Section 11 provides a mechanism for cross‑referencing other Statements of Principles. If a factor in s 9 “refers to an injury or disease in respect of which a Statement of Principles has been determined under subsection 196B(2) of the VEA,” then the factors in that other Statement apply “in accordance with the terms of that Statement as in force from time to time.” This means decision‑makers must identify when an asserted factor overlaps with other Statements and then apply the applicable Statement’s factors , the operative text is the other Statement as current at the time. The effect is to avoid inconsistent single‑instrument treatment where conditions have overlapping aetiologies.

Limits imposed by definitions: The Schedule’s definitions alter how the Statement interacts with claims involving particular service types. The Schedule defines “relevant service” to include operational, peacekeeping, hazardous and British nuclear test defence service under the VEA, and warlike and non‑warlike service under the MRCA (Schedule 1). That scope means the Statement will not apply outside those classes of service as defined in the underlying Acts; practitioners and administrators must map the claimant’s service to the Schedule’s categories to determine applicability (s 10(1) further requires that factors must be related to the relevant service).

Exclusions that affect intersection with other medical law: The instrument excludes recurrent sprain due to joint instability (s 7(2)(c)) and drug‑induced disease of tendons or muscles (s 7(3)(c)). Where a claimant’s condition arises from these excluded mechanisms, another Statement or legal pathway may be relevant. Section 11 requires use of other Statements where cross‑reference exists, but the instrument itself excludes some aetiologies from its scope.

Administrative precedential value: The Statement represents the Repatriation Medical Authority’s view that there is “sound medical‑scientific evidence” linking sprain/strain to relevant service (s 8). Within the VEA/MRCA administrative process, that view is a formal source of medical standard-setting. Its authoritative weight in disputes or review proceedings will be derived from the enabling statute and the institutional role of the Authority, rather than from the Statement alone.

The instrument identifies itself as Statement of Principles concerning sprain and strain (Reasonable Hypothesis) (No. 27 of 2020) and records dates and instruments relevant to its effect. It was dated 24 April 2020 (instrument header) and commences on 25 May 2020 (s 2). Section 4 expressly repeals the previous Statement of Principles concerning sprain and strain No. 94 of 2011 (Federal Register of Legislation No. F2011L01726). The Statement therefore replaces the earlier 2011 Statement as the operative Statement of Principles for sprain and strain from its commencement date.

No other amendments are recorded in this instrument. The text contains a provision that anticipates other Statements being varied over time: s 11 requires that where a factor refers to an injury or disease covered by another Statement of Principles, “the factors in that Statement of Principles apply in accordance with the terms of that Statement of Principles as in force from time to time.” This cross‑reference language means that the framework expects and accommodates future amendments to other Statements; any changes to those Statements will alter how cross‑referenced factors are treated under s 11.

The instrument itself does not include a schedule of prior amendments to this instrument (other than the repeal of the 2011 Statement) and does not specify any sunset clause or automatic review date. Because it is made under subsection 196B(2) of the VEA (s 3), any future amendment or repeal would proceed through the same statutory mechanism. The presence of explicit commencement (s 2) and repeal (s 4) statements is the only direct historical information the instrument records about its own lifecycle.

Practical consequence of the amendment history: Practitioners and decision‑makers must ensure they apply the 2020 Statement from its commencement date and not the repealed 2011 instrument. Section 11’s “as in force from time to time” language requires ongoing attention to the currency of other Statements, which may be amended independently. The instrument thus creates an operational need for administrators and advisers to monitor both this Statement and other Statements of Principles for amendments that affect cross‑referenced factors.

The instrument as provided contains no record of litigation, case law, or judicial interpretation; it names no cases. It is a stand‑alone Statement of Principles intended as an administrative medical standard. The document does not include references to judicial decisions, nor does it record whether its provisions have been the subject of litigation or judicial review.

Practitioners should therefore assume that any judicial interpretation of these specific provisions would need to be sought in the courts’ subsequent dealings with claims decided under the VEA or MRCA using this Statement. Section 11’s cross‑referencing to other Statements that may be “in force from time to time” means that litigation could involve multiple Statements and the interplay between them, but no such litigation is recorded in this instrument.

In the absence of cited litigation in the Statement, the immediate guide is the instrument’s text itself and the Repatriation Medical Authority’s declared view in s 8 that there is “sound medical‑scientific evidence” linking the conditions to relevant service. Administrative decision‑makers and medical experts will be expected to apply the Statement’s definitions and factors in claim assessments; disputes about factual application or statutory interpretation would be resolved through the normal appeal and review channels under the VEA and MRCA, and possibly by judicial review of administrative decisions. The Statement is silent on procedural standards for appeals or on any precedent‑setting effects, so any litigation history will need to be established from external sources or future cases.

This instrument contains a number of discrete textual features and drafting choices that create potential pitfalls for claimants, treating clinicians and decision‑makers.

1. Temporal onset requirement (s 7(2)(a), s 7(3)(a)): Both sprain and strain require “the onset of pain and tenderness at that site within the 24 hours following the injury.” Claims where documentation does not record onset within this 24‑hour window may fail to meet the definitional threshold. Practitioners should note that absence of contemporaneous records tying symptoms to that 24‑hour window weakens the ability to satisfy the Statement’s definitions.

2. Exclusions that truncate scope (s 7(2)(c), s 7(3)(c)): Recurrent sprain due to joint instability and drug‑induced tendon/muscle disease are excluded. If a claimant’s presenting condition is characterised as recurrence from instability or as drug‑induced, the Statement’s factors will not apply. That shifts claim assessment to other potential legal routes or other Statements, but this instrument will not assist those cases.

3. “At least one” factor in s 9 is necessary but not sufficient: The Statement requires at least one of the enumerated factors to exist for the “reasonable hypothesis” to be raised. However, s 10(1) adds that any such factor must be “related to the relevant service.” So even when a claimant can document a listed factor (for example, lifting heavy weights), they still must connect that event to relevant service as defined in Schedule 1. Failure to link the factual event to the service period or type prevents the reasonable hypothesis from being established.

4. Narrow application of ss 9(3)-9(5) (s 10(2)): Those factors apply only to material contribution to or aggravation of sprain or strain where the person’s condition was suffered or contracted before or during, but did not arise out of, the person’s relevant service. The parenthetical qualification “but did not arise out of” creates a nuanced boundary: these factors are intended for pre‑existing conditions aggravated by service, not conditions that originally arose out of service. Misreading this could lead to misclassification of claims.

5. “Inability to obtain appropriate clinical management” is a factor (s 9(5)): This is a potentially broad factor but will be factually contentious. The Statement does not define “appropriate clinical management,” so claimants relying on s 9(5) must present evidence showing why treatment was not available or obtained and how that inability causally affected the sprain/strain. The onus of proof remains on demonstrating the causal link and the relation to relevant service (s 10(1)).

6. Examples are not exhaustive: The instrument includes notes listing activities as examples (for instance, falls, collisions, lifting, running, jumping,ss 9(1) and 9(3) notes; and lifting weights, push ups, etc. for strains in ss 9(2) and 9(4) notes). These examples illustrate the kinds of events that satisfy the factors but are not exhaustive; decision‑makers must be attentive to analogous but non‑enumerated mechanisms. Conversely, overreliance on the listed examples when the facts differ may be unhelpful.

7. Death linkage depends on contribution to a terminal event (s 7(4) and Schedule 1 terminal event): The Statement covers death from sprain or strain only where the sprain/strain contributed to a terminal event or condition listed in the Schedule. Establishing contribution between an ante‑mortem musculoskeletal injury and causes such as pneumonia or cardiac arrest can be complex and will require medical evidence tracing causal pathways.

8. Cross‑referencing to other Statements (s 11): If a factor refers to an injury or disease covered by another Statement, decision‑makers must apply that other Statement “as in force from time to time.” Practitioners should verify the current wording of other Statements at the time a claim is assessed; using a repealed or out‑of‑date Statement to support a claim is a procedural risk.

9. No penalty or enforcement specifics in the Statement: Because the instrument provides no procedural or evidentiary mechanics beyond the substantive factors, claimants and clinicians must rely on the VEA/MRCA and administrative procedures for evidence submission, timelines and appeals. Failure to navigate those external procedures is a pragmatic gotcha.

10. Mapping service to Schedule definitions: The Schedule’s definition of “relevant service” is pivotal. Claims involving service that does not squarely fit the listed categories (operational, peacekeeping, hazardous, British nuclear test defence under the VEA; warlike or non‑warlike under the MRCA) will not be covered by this Statement. Practitioners should ensure that the claimant’s period and type of service conform to those Schedule categories before relying on this Statement.

Compliance with this Statement is primarily evidentiary and documentary: it requires claimants, treating clinicians and decision‑makers to ensure that submissions and records address the Statement’s definitions and factors and relate them to the Schedule’s “relevant service” categories.

1. Establish the basic definitional elements: For sprain or strain, ensure clinical notes document tearing or stretching of ligament, muscle or tendon and record onset of pain and tenderness at the affected site within 24 hours of the injury (s 7(2)(a), s 7(3)(a)). If the condition involves a complete tear or rupture, clinicians should explicitly record that (s 7(2)(b), s 7(3)(b)). If the presentation is recurrent or potentially drug‑induced, address the exclusions in the clinical report (s 7(2)(c), s 7(3)(c)).

2. Tie factual events to the Statement’s factors: The claim should identify at least one factor from s 9. For example, if the claimant fell during service, documentation should describe the fall as a “significant physical force applied to or through the affected joint” at the time of clinical onset or clinical worsening (ss 9(1), 9(3)). If the claimant was involved in heavy lifting or high intensity use of a muscle or tendon, evidence should describe the forceful stretching or activities such as lifting weights, running or jumping as matching s 9(2) or s 9(4). Use the instrument’s example lists to structure factual descriptions but do not confine evidence only to those examples.

3. Demonstrate the relation to relevant service: Under s 10(1), the factor(s) relied upon must be related to the person’s relevant service. Provide service records, duty logs, operational reports, or contemporaneous accounts that place the event within the defined type of service in Schedule 1. Identify whether the service was operational, peacekeeping, hazardous, British nuclear test defence (VEA categories), or warlike/non‑warlike under the MRCA (Schedule 1).

4. Address pre‑existing conditions and the limited scope of ss 9(3)-9(5): If the claim involves clinical worsening of a pre‑existing sprain/strain, ensure evidence shows that the worsening occurred before or during, but did not arise out of, relevant service if relying on ss 9(3)-9(5) (s 10(2)). Demonstrate material contribution or aggravation by service with comparative clinical assessments pre‑ and post‑service events.

5. If relying on inability to obtain appropriate clinical management (s 9(5)), document efforts to obtain treatment and the reasons for inability (for example, lack of access in theatre, administrative denial, or geographic barriers). Clinicians should provide expert opinion on how the absence of appropriate management materially contributed to the current condition and tie that contribution to the relevant service period (s 10(1)).

6. For claims involving death, obtain medical and forensic evidence demonstrating how the sprain or strain contributed to the terminal event (s 7(4)). Provide linkage between the musculoskeletal condition and proximate causes of death listed in the Schedule (for example, pneumonia, respiratory or circulatory failure) with expert clinical opinion on causation.

7. Check for overlap with other Statements: If any factor refers to an injury or disease covered by another Statement of Principles, identify that other Statement and apply its factors “as in force from time to time” (s 11). Practitioners should obtain the current text of any such Statement at the time of claim preparation.

8. Maintain contemporaneous clinical records: Because the Statement emphasizes onset timing and clinical worsening, contemporaneous records showing timing of symptoms, objective findings and treatment entries will be critical. Clinicians should state explicitly whether the presentation satisfies the 24‑hour onset requirement and whether findings are consistent with tearing/rupture or recurrence due to instability.

9. Prepare for challenges on meaning of “significant physical force” and “forceful stretching/high intensity use”: These phrases are central to ss 9(1)-9(4) but are not precisely quantified. Expert reports should map the claimant’s event to these phrases with clinical rationales; provide descriptions of forces involved, body mechanics, and plausible causal mechanisms.

10. Keep the Statement’s commencement and repeal dates in mind: Apply this Statement to claims falling within its operation from 25 May 2020 (s 2), and do not rely on the repealed 2011 Statement (s 4). Where claims span different Statements or periods, document which Statement is being relied upon and why.

By structuring evidence to correspond with the Statement’s definitions, factors and service‑relation requirement, claimants and clinicians will provide decision‑makers with the specific material the instrument requires for a reasonable hypothesis to be considered. The Statement does not prescribe procedural submission formats or timelines; those are governed by the VEA, MRCA and administrative practice.