Neurology Edited by Professor Emeritus Desire' Dubounet, IMUNE

Note: Digit and hand impairments must be converted to impairments ofthe upper extremity before regional impairments can be combined.Use Table 3 to convert impairment of the upper extremity to impairmentof the whole person.Example: An upper extremity that has sustained multiple injuries hasregional impairments of: 50% of thumb, 10% of index finger, 5% of theupper extremity due to the wrist, and 2% of the upper extremity due to theelbow. Using Table 1, a 50% thumb impairment and a 10% index fingerimpairment convert to 20% and 2% impairment of the hand, respectively.These are added to obtain a 22% impairment of the hand. Using Table 2,a 22% impairment of the hand is equivalent to a 20% impairment of theupper extremity. Using the Combined Values Chart 20% combined with5% = 24%; 24% combined with 2% = 26% impairment of the upperextremity, and a 16% impairment of the whole person (Table 3).3. 1i Impairment of the Upper Extremity Due to PeripheralNervous System Disorders