SUBSTITUTE OPINION
THE COURT’S PRIOR OPINION DATED JUNE 30, 2004 IS HEREBY WITHDRAWN.
This is an appeal from a finding by the Industrial Commission that repetitive motion during long hours of work, which aggravated a pre-existing arthritic condition in the claimant’s thumbs, constituted an accident under the worker’s compensation law. Because the finding of an accident is unsupported by the evidence, we reverse.
I. FACTS AND PROCEDURAL HISTORY
Karen Konvalinka (Claimant) is a court reporter who is employed by the State of Idaho and works for a district judge in Bonneville County. In March 1997, she experienced bilateral thumb pain during a three-week trial in which she worked long hours recording testimony during the day and typing transcripts at night. After the trial was over, the pain went away, and she did not miss any work or seek medical treatment. She had a light work schedule until August 1997, when her thumb pain returned. She then sought medical treatment. It is undisputed that she had a pre-existing medical condition of bilateral osteoarthritis at the base of her thumbs and that her employment aggravated that condition, making it symptomatic, but did not cause it. Her condition is quite common in females of her age. Her bilateral thumb pain has continued since August 1997.
On January 5, 2000, the Claimant filed a claim for worker’s compensation benefits. The Industrial Commission found that the aggravation of her pre-existing condition in March and August 1997 constituted an accident, that the aggravation in August 1997 was permanent, and that she was therefore entitled to benefits. The employer and surety then timely appealed.
II.ANALYSIS
When this Court reviews a decision of the Industrial Commission, it exercises free review over questions of law, but reviews questions of fact only to determine whether substantial and competent evidence supports the Commission’s findings.
Eacret v. Clearwater Forest Indus.,
An employee may obtain worker’s compensation benefits for aggravation or acceleration of a pre-existing condition only if the aggravation or acceleration results from an industrial accident as defined by the worker’s compensation law.
Koch v. Micron Technology,
Although an accident may and usually does cause the onset of pain, an “accident” under the worker’s compensation law is not simply the onset of pain,
McGee v. J.D. Lumber,
The Industrial Commission found that the hard work performed by the claimant in March and August 1997 constituted an accident that aggravated her pre-existing osteoarthritis. Hard work is not an accident.
Nycum v. Triangle Dairy Co.,
The Claimant cites
Wynn v. J.R. Simplot Co.,
“Accident” and “injury” are certainly interrelated defínitionally. An accident must cause an injury, and an injury must be caused by an accident. IDAHO CODE § 72-102(17) (1999). The terms are not synonymous, however.
Swan v. Williamson,
III. CONCLUSION
The order of the Industrial Commission is reversed. Costs on appeal are awarded to the appellant.
