State ex rel. Wyoming Worker's Compensation Div. v. Roggenbuck
In State ex rel. Wyoming Worker's Compensation Div. v. Roggenbuck, 938 P.2d 851 (Wyo. 1997), another substantial evidence case, the Court upheld an award of benefits to a claimant for aggravation of a preexisting condition.
Despite the claimant's extensive history of back problems, two previous back surgeries, and the fact that he filed a report of injury only nine days into his new employment, the Court concluded he presented substantial evidence that his work contributed to a material degree to the precipitation, aggravation or acceleration of his preexisting condition.