**Injury No.:** 05-017526
**App. 2008), the Second Injury Fund argues that employee's claim must be denied because Dr. Volarich failed to apportion the degree of disability stemming from the last injury and that which was preexisting or attributable to other causes.**
**The last injury occurred on January 10, 2005, when a metal bracket fell on employee's left wrist. Employee had previously been diagnosed with bilateral carpal tunnel syndrome in 2002 and had sought treatment for left wrist and hand pain intermittently since 1995. Dr. Volarich assigned a 45% permanent partial disability of the left wrist due to the injury on January 10, 2005, attributed to employee's carpal tunnel syndrome that required open carpal tunnel release, as well as de Quervain's tenosynovitis that required left dorsal compartment decompression. Dr. Volarich noted that, prior to the incident on January 10, 2005, employee suffered from progressively worse symptoms related to left wrist carpal tunnel syndrome, but notably, Dr. Volarich did not include left wrist carpal tunnel syndrome in his catalogue of employee's disabling conditions preexisting January 10, 2005.**
**The Second Injury Fund characterizes Dr. Volarich's testimony as assigning one disability rating to two separate "accidents": one attributable to employee's repetitive work and the other to the falling bracket incident on January 10, 2005. The Second Injury Fund argues that one of these accidents must have occurred before the other, and therefore employee has failed to establish the disability resulting from the "last" accident where Dr. Volarich assigned only one disability rating.**
**We acknowledge employee's burden to establish the nature and extent of disability resulting from the last injury considered alone:**
If the previous disability or disabilities, whether from compensable injury or otherwise, and the last injury together result in total and permanent disability, ... the employer at the time of the last injury shall be liable only for the disability resulting from the last injury considered alone and of itself; except that if the compensation for which the employer at the time of the last injury is liable is less than the compensation provided in this chapter for permanent total disability, then in addition to the compensation for which the employer is liable and after the completion of payment of the compensation by the employer, the employee shall be paid the remainder of the compensation that would be due for permanent total disability under section 287.200 out of a special fund known as the "Second Injury Fund" ...**