The so-called key-punchers disorders have chiefly orthopedic symptoms associated with some of ophthalmological and psychiatric symptoms and are not always peculiar to key-punchers. We have conducted a periodic physical examination for key-punchers once or twice a year, which has proved considerably effective.
The items of the examination include a neurological test for tension sign, Adson's test, Morley's test, Tinel's sign, and checking tenderness, pain in motion and mass of the flexor tendons in the finger joint regions. An x-ray examination of the cervical spine is usually done with six radiographs taken antero-posteriorly, laterally, obliquely and with the cervical spine bending forward and backward. C. M. I. is employed for a mental test and Y-G test for a character test. Thus, the subjects are examined both physically and mentally.
As the result, tension sign are positive in 52%, Adson's test 17%, Morley's test 38%, Tinel's sign 12.5%, flexion test 5.6%. As mentioned above, a relatively high incidence of positive reaction is noted in the neurological test. The subjects who are considered to be a neurotic by the Fukamachi's Judge show a higher incidence of positive neurological test.