Kernrechtsfrage
Whether the accident insurer could revoke the disability pension under revision rules from 1 September 2006.
Extrahierter Entscheid
No revision was justified because no substantial change in the relevant facts since the original pension award was proven.
Extrahierte Begründung
The later experts did not identify new post-1998 factual developments; they only reassessed the already known situation differently. A mere reassessment is insufficient for revision.