Comparison ultrasound-guided vs. Nerve-controlled peripheral nerve blocks of the lower extremity in terms of needle-nerve distance, block characteristics and magnetic resonance tomographic and sonographic changes in the nerve

Comparison ultrasound-guided vs. Nerve-controlled peripheral nerve blocks of the lower extremity in terms of needle-nerve distance, block characteristics and magnetic resonance tomographic and sonographic changes in the nerve - DIB-MRT

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

DRKS

Registry ID

DRKS00008767

Enrollment

Registered

2015-06-23

Start date

2015-10-16

Completion date

Unknown

Last updated

2025-04-07

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

G57

Interventions

Group 1: Implementation of peripheral nerve block with nerve stimulator-controlled method> postoperative MRI Group 2: Implementation of peripheral nerve block with ultrasound guided method> postoperat

Eligibility

Sex/Gender

All

Age

18 Years to 85 Years

Inclusion criteria

Inclusion criteria: In the study patients will be included , who undergo electively an intervention of the lower limb-surgery (eg, knee joint and ankle arthroscopy, metal distances, foot surgery), where standard general anesthesia or peripheral nerve block would be carried out by nerve stimulator or ultrasound. The study included only patients able to consent to participate. After consent to the study, the patients will be enrolled, which get as anesthetic procedures a combination anesthesia or regional anesthesia with mono-block of the sciatic nerve.

Exclusion criteria

Exclusion criteria: No consent, lack of capacity to consent. Pre-existing nerve damage, polyneuropathy, infection in the area of any planned nerve blockade, muscle and nerve disease, allergy to local anesthetics, heart failure> NYHA II, severe lung disease, known strong postoperative nausea and vomiting, known or suspected difficult airway management.

Design outcomes

Primary

Measure	Time frame
1) Sonografic distance between needle tip and nerve at a stimulation current of 0.5mA while nerve blockade preoperatively 2) Sonographic measurement of nerve cross-section before and after injection of the local anesthetic at the plant nerve block preoperatively 3) Acquisition MRI-morphological changes (nervous edema, inflammation, density) MRI pre- ( 12 hours ago) and postoperatively (12 hours later)	—

Measure

Time frame

1) Sonografic distance between needle tip and nerve at a stimulation current of 0.5mA while nerve blockade preoperatively 2) Sonographic measurement of nerve cross-section before and after injection of the local anesthetic at the plant nerve block preoperatively 3) Acquisition MRI-morphological changes (nervous edema, inflammation, density) MRI pre- ( 12 hours ago) and postoperatively (12 hours later)

—

Secondary

Measure	Time frame
1) Patient Satisfaction - Postoperative care unit, 1-6 grade 2) Post-operative pain - Postoperative care unit, Nummeric rating scale (1-10) 3) PONV - Apple Score, Postoperative care unit 4) hemodynamic stability - anesthesia protocol 5) process times - anesthesia protocol	—

Countries

Germany

Contacts

Public ContactIngo Bergmann

UMG Göttingen

Ingo.Bergmann@med.uni-goettingen.de0551 / 3922995

Outcome results

None listed

Source: DRKS (via WHO ICTRP) · Data processed: Feb 4, 2026