Key legal question
Whether the right-knee complaints in 2009 were causally linked to the 1984 accident.
Extracted holding
The natural causal link was not established with the required degree of probability.
Extracted reasoning
The Federal Court upheld the full evidentiary value of the interdisziplinäre expert report from the Zentrum X., found no concrete doubts about its reliability, and held that the earlier medical records and the alleged suture remnants did not prove causation.