Observation of the lowest effective concentration of ultrasound-guided femoral nerve combined with sciatic nerve block using ropivacaine in analgesia after knee arthroscopic ligament reconstruction

Status

Recruiting

Phases

Early Phase 1

Study type

Interventional

Source

ChiCTR

Registry ID

ChiCTR2100045439

Enrollment

Unknown

Registered

2021-04-15

Start date

2021-05-15

Completion date

Unknown

Last updated

2021-11-29

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

Conditions

Injury of anterior bifurcate ligament

Interventions

Experimental group:All patients underwent ultrasound-guided femoral nerve combined with sciatic nerve block. The volume of ropivacaine was 20ml for both femoral nerve and sciatic nerve, and the concen

Eligibility

Sex/Gender

All

Age

18 Years to 45 Years

Inclusion criteria

Inclusion criteria: 1. 18-45 years old; 2. ASA I-II ; 3. The duration of operation is not more than 100 minutes.

Exclusion criteria

Exclusion criteria: 1. ACL revision surgery; 2. With severe bleeding disorder; 3. Infection at blocking site, diabetes or peripheral neuropathy, and neurological dysfunction of the affected limb; 4. Allergies to study drugs; 5. Body mass index ((BMI)) > 35 kg/m^2.

Design outcomes

Primary

Measure	Time frame
Wound resting VAS score;Wound exercise VAS score;	—

Secondary

Measure	Time frame
Intraoperative opioid consumption;Operation time;Time of first pain report;Time for removal of laryngeal mask;Time of first use of analgesics;Onset time of sensory and motor block;Duration of motor block;Number and dose of postoperative remedial analgesia;	—

Countries

China

Contacts

Public ContactXu Cheng

Department of Anesthesiology, Shanghai Sixth People's Hospital

xucheng303@163.com+86 15102139984

Outcome results

None listed

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