Kernrechtsfrage
Whether the left-knee complaints reported in 2006 were caused by a service-related injury or were late consequences of the 1993 military service episode.
Extrahierter Entscheid
The required natural and adequate causal link was not established with predominant probability.
Extrahierte Begründung
The contemporaneous medical records showed only a worsening of a pre-existing condition during service, not a documented structural knee injury; the later expert opinion relied on an inaccurate history and did not prove continuing effects of a service injury.