Nerve compression in Guyon's canal
Here too, a nerve compression occurs in a passage between the pisiform bone and hamate bone extension. This is the ulna nerve, situated in the area of the little finger.
The symptoms are numbness in the little finger and half of the ring finger, as well as a paralysis of the hand muscles.
In this case, the same goes as for the CTS: Conservative treatment should not take place too long, about 6 weeks. Then the nerve in the little finger area is treated, by a 3 cm long incision in the flexural wrist area. After about 2 weeks, the hand can be used again.