Question juridique clé
Whether late-filed medical reports were admissible as new evidence
Solution extraite
The report filed with the appeal was inadmissible; the later institute report was a separate new item not prompted by the cantonal judgment, but could be left open because it would not change the result.
Motifs extraits
New evidence is admissible only if triggered by the prior decision. The party could not rely on the mere unfavorable outcome, and the later institute statement addressed only the knees without answering the decisive causation questions.