Question juridique clé
Whether the medical evidence established a work incapacity justifying an IV pension.
Solution extraite
The expert opinion of Institut Y. was accepted as fully probative; no convincing basis existed to prefer the treating physician's assessment, and the insured retained 80% capacity in adapted work.
Motifs extraits
The court found no signs of bias in the expert, the MRI findings did not by themselves prove a deterioration, and the treating doctor's view lacked specialist support. The psychiatric allegations were not established as a true mental disorder.