An accident is defined by $\S 287.020 .2$ RSMo., as a "traumatic event or unusual strain identifiable by time and place occurrence and producing at the time objective symptoms of an injury caused by a specific event during a single work shift." Under §287.020.3(2) RSMo., an injury is deemed to arise out of and in the course of employment if:
(a) It is reasonably apparent, upon consideration of all the circumstances, that the accident is the prevailing factor in causing the injury; and
(b) it can be seen to follow as a natural incident of the work; and
(c) it can be fairly traced to the employment as a proximate cause; and
(d) It does not come from a hazard or risk unrelated to employment to which workers would have been equally exposed outside of and unrelated to the employment in normal unemployment life.
Claimant bears the burden of proving the essential elements of his claim by producing evidence from which it may be reasonably found that an injury resulted from the cause for which the employer would be liable. Griggs v. A.B. Chance Co., 503 S.W.2d 697 (Mo.App. 1973). Medical causation not within lay understanding or experience requires expert medical evidence. Wright v. Sports Associated, Inc., 887 S.W.2d 596 (Mo.banc 1994) (overruled on other grounds). The weight to be accorded an expert's testimony should be determined by the testimony as a whole and less than direct statements of reasonable medical certainty will be sufficient. Choate v. Lily Tulip, Inc., 809 S.W.2d 102 (Mo.App. 1991) (overruled on other grounds).
In the instant case, Claimant credibly testified he was engaged in pruning a tree limb when he felt pain in his right shoulder. Claimant did not use the word "injury" to describe the event as he was performing his normal job duties when the event occurred. Not using the word "injury" is not dispositive of whether a work related injury occurred. How the injury occurred is supported by the nurse practitioner and Dr. Emanuel. Dr. Collard's opinion regarding how the injury occurred is suspect as it is contrary to what Claimant reported on his patient intake form. I find the credible testimony of Claimant and the causation opinion of Dr. Emanuel to be
persuasive, and find Claimant sustained an accident on July 6, 2015 that arose out of and in the course and scope of his employment with Employer. I further find Claimant met his burden to establish medical causation.