Percutaneous analgesic device enabling both local anesthetic delivery and electrical stimulation (neuromodulation) of peripheral nerves: a pilot feasibility study (case series)
Authors' conclusion
This novel device successfully delivered a single-injection local anesthetic bolus, a continuous perineural infusion, and concurrent/subsequent electrical current.
Study context
- Population
- Adults undergoing moderate-to-severely painful ambulatory shoulder or foot/ankle surgery
- Participants
- 20 adults
- Outcome
- Feasibility and safety of using the device to treat postoperative pain
Methodological detailscase series, single-group, US FDA Investigational Device Exemption
- Case series
- Single-group
- US FDA Investigational Device Exemption
Main finding
As reported in the abstract
Average daily pain intensity (NRS) · first seven postoperative days
Median (IQR) average daily numeric rating scale (NRS)
2
0, 3
Observational data: associations, not effects.
Further findings
Worst (maximum) pain, Days 0-14
- Mild pain (NRS<4)
- 7 (35%)
- Moderate pain (NRS 4-7)
- 10 (50%)
- Severe pain (NRS>7)
- 3 (15%)
Cumulative oxycodone consumption · first week
- Median cumulative oxycodone (mg)
- 43 (18, 73)
Daily average and maximum/worst NRS after POD 1 · Following postoperative day 1
- Daily average NRS less than 2 and maximum/worst NRS less than 5
Original publication
Percutaneous analgesic device enabling both local anesthetic delivery and electrical stimulation (neuromodulation) of peripheral nerves: a pilot feasibility study (case series). Reg Anesth Pain Med. Published 25 September 2025. doi:10.
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