The instrument rests on a small number of definitional and causal concepts. Each is explicitly set out in the text and the Schedule. The principal concepts are: the statutory source and scope, the clinical meaning of ganglion adopted for claims assessment, the causal test applied, the single enumerated factor required for connection to relevant service, and the temporal limitations on how the factor may be invoked.
Statutory source and scope. The SoP is made under subsection 196B(3) of the VEA (section 3) and applies to claims governed by section 120B of the VEA and section 339 of the MRCA (section 5). The Schedule defines "relevant service" for the purposes of the instrument as eligible war service (other than operational service) under the VEA, defence service (other than hazardous service and British nuclear test defence service) under the VEA, or peacetime service under the MRCA (Schedule - relevant service). These defined categories determine when the SoP’s factors must be linked to service.
Clinical meaning of ganglion. For claims purposes the SoP gives a working clinical definition of ganglion: a benign, cystic lesion overlying a joint or tendon, consisting of a thin fibrous capsule with no epithelial lining enclosing clear mucinous fluid, and which may be accompanied by pain, weakness and loss of function (section 7(2)(a)). The instrument also lists five explicit exclusions: cyst of bursa, epidermoid cyst, ganglion in yaws, synovial cyst, and Tarlov cyst (section 7(2)(b)). This textual definition is determinative for the SoP even though it notes the condition attracts ICD‑10‑AM code M67.4 (section 7(3)-(4)).
Causal test. The RMA frames causation on the ordinary civil standard of the balance of probabilities. The RMA states that, on the sound medical‑scientific evidence available, it is of the view that it is more probable than not that ganglion and death from ganglion can be related to relevant service (section 8). The SoP then lists the factors that must exist before it can be said, on that balance, that ganglion or death from ganglion is connected to service (section 9).
Enumerated factor. There is a single, express factor set out in section 9(1): inability to obtain appropriate clinical management for ganglion before clinical worsening. That is the required factual circumstance the RMA has determined must be established to support a finding of connection, subject to the relationship-to-service requirements in section 10.
Temporal and relational limits. Section 10 imposes relational requirements. The existence of any factor in section 9 must be related to the person’s relevant service (section 10(1)). Further, the factor in subsection 9(1) applies only to material contribution to, or aggravation of, ganglion where the ganglion was suffered or contracted before or during the person’s relevant service, but did not arise out of that service (section 10(2)). Thus the instrument differentiates between ganglion that arose out of service, and ganglion that was pre-existing or suffered/contracted before or during service but which did not arise out of service; the enumerated factor only operates in the latter category.
Death and terminal event. The SoP includes "death from ganglion" where the ganglion contributed to a terminal event or condition (section 7(5)). The Schedule defines "terminal event" to include proximate or ultimate causes such as pneumonia, respiratory failure, cardiac arrest, circulatory failure, or cessation of brain function. That links the pathology of ganglion to downstream fatal outcomes for the narrow purpose of claims assessment under this SoP.
Cross-application to other SoPs. Section 11 provides that if a factor in section 9 refers to an injury or disease that is covered by another SoP, then the factors in that other SoP apply according to its terms. This creates an explicit cross-reference mechanism where overlapping conditions or contributing conditions are governed by their own SoPs.
The SoP’s concepts are compact but precise. The clinical definition, the single enumerated factor, and the temporal limits together form the SoP’s operative test for claims connection to relevant service. Each of these is expressed in statutory text and in the Schedule, which should be read together when assessing claims.
Citations: sections 3, 5, 7(2)-(5), 8, 9(1), 10(1)-(2), 11; Schedule definitions.