Employer's termination of treatment and temporary total disability benefits are vigorously disputed in this case. The parties agree that employee sustained compensable injuries when he fell from a scaffold in the course of his duties for employer on November 9, 2006. The key issue is the nature and extent of the medical condition and disability resulting from that accident. "Injury" and "accident" are defined in § 287.020 RSMo. Section 287.020.3(1) RSMo defines "injury" as an injury that arises out of and in the course of employment:
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.
If an injury by accident is compensable under the Workers' Compensation Law, we look to $\S 287.140 .1$ RSMo to determine employer's liability to provide treatment for the injury:
In addition to all other compensation paid to the employee under this section, the employee shall receive and the employer shall provide such medical, surgical, chiropractic, and hospital treatment, including nursing, custodial, ambulance and medicines, as may reasonably be required after the injury or disability, to cure and relieve from the effects of the injury.
[^0]
[^0]: ${ }^{1}$ All references are to the 2005 Revised Statutes of Missouri, unless otherwise indicated.
From the language of the foregoing sections, employee's burden is to show that the accident of November 9, 2006, was the prevailing factor causing a resulting medical condition and disability for which treatment was reasonably required after April 24, 2007 (the date on which employer's treating doctors found employee to have reached maximum medical improvement). In support of his claim, employee offers the testimony of Dr. David Volarich, who performed an independent medical examination. Employer presents the testimony of treating Drs. George Paletta, Michael Chabot, and Craig Aubuchon. In addition, the parties have provided extensive treatment records relating to each of employee's claimed conditions of ill.
The administrative law judge agreed with employer's experts that employee reached maximum medical improvement as of April 24, 2007, on a finding that Dr. Volarich lacked credibility. Although we disagree with the comments and rationale of the administrative law judge for discounting the opinion of Dr. Volarich, we do agree that the opinion of Dr. Volarich does not provide a convincing basis for the award sought by employee.
With regard to the spine, Dr. Volarich's theory is that the work injury caused employee to develop lumbar syndrome (a non-specific diagnosis) secondary to aggravation of degenerative disc disease and degenerative joint disease at L3-4, L4-5, and L5-S1. Dr. Volarich also testified that employee sustained an axial compression injury when he fell, pointing to the x-rays showing a narrowing at the L5-S1 disc space. Dr. Volarich is the only doctor in this case to opine that the narrowing at L5-S1 was traumatic in origin, and we find his reasoning less than compelling. When asked whether the lumbar surgery notes provide any evidence that employee suffered an acute injury, Dr. Volarich admits that "it's too late to make an identification of an acute injury ... two and a half years down the road." Dr. Volarich also agrees that Dr. Graven, the surgeon who performed the fusion, found nothing beyond a degenerated disc at L5-S1. Dr. Volarich's ultimate causation opinion appears to be circular: "I have to go back and say that the work accident was the cause of the L5-S1 disc and his symptoms because that was the one that was identified [via discogram] as being concordant with causing his problem."
With respect to the left shoulder injury and tear of the biceps tendon, although Dr. Volarich offers his opinion as to the reasonableness of the charges for surgery, he does not explain why the surgery was reasonably required to cure the effect