Key legal question
Whether the insured showed a revision-relevant deterioration entitling her to a full invalidity pension from 1 February 2006 to 31 July 2007.
Extracted holding
The medical evidence showed full incapacity after November 2005 and a later recovery phase after the November 2006 surgery; a full pension was due from 1 February 2006 until 31 July 2007.
Extracted reasoning
The expert opinion was too general for the revision period and the investigation principle was breached. The treating spinal surgeon's reports were reliable and sufficiently established six months of postoperative full incapacity after each operation.