Determination of the minimum local anaesthetic dose of ropivacaine in real-time ultrasound guided spinal anesthesia for elderly patients with hip fracture

Status

Active, not recruiting

Phases

Early Phase 1

Study type

Interventional

Source

ChiCTR

Registry ID

ChiCTR2100053275

Enrollment

Unknown

Registered

2021-11-18

Start date

2021-11-16

Completion date

Unknown

Last updated

2022-10-17

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

Conditions

Elderly patients with hip fracture

Interventions

Traditional lumbar anaesthesia 0.75% ropivacaine group :0.75% ropivacaine

Traditional lumbar anaesthesia 0.5% ropivacaine group:0.5% ropivacaine

Ultrasonic guided 0.75% ropivacaine group:Ultrasonic guided 0.75% ropivacaine

Ultrasonic guided 0.5% ropivacaine group:Ultrasonic guided 0.5% ropivacaine

Eligibility

Sex/Gender

All

Age

70 Years to No maximum

Inclusion criteria

Inclusion criteria: 1. Aged > 70 years; 2. ASA classification of I-III; 3. Patients with hip fracture; 4. Sufficiently informed, and consented to the agreement.

Exclusion criteria

Exclusion criteria: 1. Those patients with contraindications of intraspinal anesthesia; 2. Patients with spinal deformity or spinal surgery; 3. Patients with infection of puncture site; 4. Patients with local anesthetic allergy; 5. Patients with coagulation disorders.

Design outcomes

Primary

Measure	Time frame
Clinical data;Cycle indicators: HR, MBP, SPO2;Onset time of motor block;Duration of motor retardation;Spinal anaesthesia-related complications;Postoperative complications;	—

Countries

China

Contacts

Public ContactZheng Xiaochun

Fujian Provincial Hospital

zhengxiaochun7766@163.com+86 13705058351

Outcome results

None listed

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