Determination of EC50 of ropivacaine for pericapsular nerve group (PENG) block for elderly patients in hip arthroplasty

Status

Active, not recruiting

Phases

Phase 1

Study type

Interventional

Source

ChiCTR

Registry ID

ChiCTR2200061235

Enrollment

Unknown

Registered

2022-06-16

Start date

2022-06-03

Completion date

Unknown

Last updated

2023-03-26

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

Conditions

Hip fracture

Interventions

Group 1 :Ropivacaine, performed by Dixon's sequential method

Eligibility

Sex/Gender

All

Age

50 Years to No maximum

Inclusion criteria

Inclusion criteria: 1. Age >= 50 years old; 2. ASA I-III; 3. BMI 18-30 kg/m2.

Exclusion criteria

Exclusion criteria: 1. Abnormal coagulation function and other diseases; 2. People with infection at the puncture site; 3. Obese people; 4. Failing to cooperate with the investigation requirements of this study and refusing to join this study; 5. History of chronic pain, long-term use of analgesics.

Design outcomes

Primary

Measure	Time frame
Minimum effective concentration;	—

Countries

China

Contacts

Public ContactLi Xinfang

The Second Hospital of Lanzhou University

445955402@qq.com+86 13919967627

Outcome results

None listed

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