The worker suffered a compensable right shoulder injury in 2001 and later claimed a secondary left shoulder condition due to overcompensation.
In 2007, an Appeals Resolution Officer allowed the left shoulder entitlement.
Subsequently, the WSIB discovered the worker had moved to the United States and operated a maintenance business between 2005 and 2007 without reporting this material change in circumstances.
Operations requested a reconsideration of the 2007 decision.
The Appeals Services Division concluded that while the worker did develop a left shoulder strain from overcompensation, it would have fully recovered within six weeks of stopping work in February 2004.
The significant left shoulder pathology diagnosed in 2005 and 2006, which required surgery, was found to be caused by his unreported self-employment activities rather than the original workplace injury.