Kernrechtsfrage
Whether a revision of the half disability pension justified an increase to a full pension from 1 October 2009.
Extrahierter Entscheid
No revision-relevant worsening of earning incapacity was shown during the comparison period, so the pension increase was not warranted.
Extrahierte Begründung
The cantonal findings, based on the medical record including Dr. K.'s report, showed that although the condition of the left knee worsened, work incapacity did not increase; the reported stroke-related symptoms did not lead to a greater loss of capacity, and no other health disorder caused a revision-relevant deterioration.