Kernrechtsfrage
Whether the revised disability assessment showed a material improvement justifying pension reduction.
Extrahierter Entscheid
Yes. The medical evidence showed reduced joint swelling, no inflammatory activity in the sacroiliac joints, and improved spinal mobility, establishing a material improvement in health and work capacity.
Extrahierte Begründung
The Federal Court accepted the cantonal court's evaluation of the medical reports and found no arbitrarily incorrect fact-finding or need for further expert evidence.