In such cases, the extent of work disability is determined by averaging together the percentage of post-injury task loss demonstrated by the employee to be caused by the injury and the percentage of post-injury wage loss demonstrated by the employee to be caused by the injury.
The resulting award shall be paid for the number of disability weeks at the payment rate until fully paid or modified. In any case of permanent partial disability under this section, the employee shall be paid compensation for not to exceed 415 weeks following the date of such injury. If there is an award of permanent disability as a result of the compensable injury, there shall be a presumption that disability existed immediately after such injury. Under no circumstances shall the period of permanent partial disability run concurrently with the period of temporary total or temporary partial disability.
K.S.A. 44-510e