Section 287.120 RSMo mandates that employers subject to the workers' compensation act shall be liable for compensation to an employee for personal injury or death by accident arising out of and in the course of employment. The employer and the employee stipulate that they are subject to the act; at issue is whether the employee suffered an injury compensable under the act.
Effective August 28, 2005, SB 1 \& 130 changed the standard for determining whether an injury by traumatic event, cumulative trauma, or disease process was sufficiently work related as to come under the provisions of the workers' compensation act. In Lawson v. Ford Motor Co., 217 S.W.3d 345 (Mo.App. E.D., 2007), at pp. 348-349, the court notes as follows with respect to the change in the legal standard:
As Ford correctly notes, in 2005 the legislature amended several sections of the Workers' Compensation Act. In particular, portions of section 287.067 and 287.020 were rewritten. Specifically, section 287.067 .2 discusses when an injury by occupational disease is considered compensable. Prior to 2005, the section stated that such an injury will be compensable if it "is clearly work related and meets the requirements of an injury which is compensable as provided in subsections 2 and 3 of section 287.020 ."
Subsections 2 and 3 of section 287.020 previously contained definitions for "accident" and "injury." Prior to 2005, those definitions included language which concluded that an injury was compensable if it is work related, which occurs *349 if work was a "substantial factor" in the cause of the disability.
Section 287.020.3 as amended in 2005 defines "injury" and sets forth, as follows, a two-part test for determining when an injury arises out of and in the course of employment:
(1) In this chapter the term "injury" is hereby defined to be an injury which has arisen out of and in the course of employment. An injury by accident is compensable only if the accident was the prevailing factor in causing both the resulting medical condition and disability. "The prevailing factor" is defined to be the primary factor, in relation to any other factor, causing both the resulting medical condition and disability (emphasis added).
(2) An injury shall be deemed to arise out of and in the course of the employment only if:
(a) It is reasonably apparent, upon consideration of all the circumstances, that the accident is the prevailing factor in causing the injury; and
| Employee: | Erin Cooper | Injury Number 06-093386 |
(b) It does not come from a hazard or risk unrelated to the employment to which workers would have been equally exposed outside of and unrelated to the employment in normal nonemployment life.
In Section 287.020.2 the term accident is defined as follows:
The word "accident" as used in this chapter shall mean an unexpected traumatic event or unusual strain identifiable by tim