23rd Annual Pain Medicine Meeting 2024

Successful peripheral nerve stimulation in saphenous neuropathy occurring as a complication of total knee arthroplasty

Treatment of saphenous neuropathy by placing 60-day saphenous peripheral nerve stimulator

Stephanie Chung, DO & Kim Youngren, MD

Dartmouth Health Center for Pain and Spine

INTRO

•Saphenous nerve injury is a known but uncommon complication of total knee arthroplasty

•Peripheral nerve stimulator (PNS) successfully utilized in post total knee arthroplasty (TKA) nerve injury

CASE

•60 year old female with 17 months of right saphenous neuropathy

•EMG demonstrated left saphenous neuropathy with absent sensory nerve conduction

•Diagnostic saphenous nerve block provided temporary relief

•Initial PNS placement failed due to lack of coverage, second PNS placement successful

•75% pain relief for the past 7 months

DISCUSSION

•Unique application of peripheral nerve stimulation in management of post TKA saphenous neuropathy

•Second PNS attempt successful shows importance of precise lead placement and paresthesia mapping

SUCCESSFUL PERIPHERAL NERVE STIMULATION IN SAPHENOUS NEUROPATHY OCCURRING AS A COMPLICATION OF TOTAL KNEE ARTHROPLASTY