Kernrechtsfrage
Whether the 2007 left-knee meniscus re-tear was in natural causal relation to the 1996 accident, triggering renewed accident-insurance benefits.
Extrahierter Entscheid
The causal link could not be decided with sufficient certainty on the existing file; the insurer must obtain an external medical expert opinion and decide again.
Extrahierte Begründung
The medical opinions were contradictory. The insurer’s expert report was not persuasive enough to exclude causality merely because the insured had been symptom-free for many years; the treating surgeon’s view supported relapse causality, but the file still required an independent assessment under the investigative principle.