Ultrasound-guided ulnar nerve catheter placement in the forearm for postoperative pain relief and physiotherapy.

Consistent identification of peripheral nerves as well as placement of catheters for post-operative pain relief is possible with the aid of ultrasound. By blocking a single nerve rather than the entire extremity, pain can be eliminated without impairing motor function of the entire extremity, providing greater patient comfort. This report describes a case in which ultrasound-guided ulnar nerve catheter placement was performed in the forearm for post-operative pain relief following arthrolysis and tenolysis of the fifth finger. The ulnar nerve catheter allowed for excellent pain relief and completely painless physiotherapy without impairing motor function of the operated finger.