Comparison of modified paramedian technique and paramedian technique for subarachnoid anesthesia in patients undergoing joint replacement surgery

Status

Recruiting

Phases

Early Phase 1

Study type

Interventional

Source

ChiCTR

Registry ID

ChiCTR2300075572

Enrollment

Unknown

Registered

2023-09-08

Start date

2023-09-08

Completion date

Unknown

Last updated

2023-09-11

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

Conditions

Patients with joint replacement surgery

Interventions

Modified paramedian technique group:Modified paramedian technique

Paramedian technique group:Paramedian technique

Eligibility

Sex/Gender

All

Age

18 Years to 90 Years

Inclusion criteria

Inclusion criteria: 1. Patients undergoing joint replacement surgery under subarachnoid anesthesia 2. Patients or family members sign the informed consent form. 3. Age = 65 years old. 4. No gender restrictions. 5. American Society of Anesthesiologists classifies ASA I~III.

Exclusion criteria

Exclusion criteria: 1. Contraindications of subarachnoid anesthesia. 2. Severe cardiopulmonary disease. 3. History of lumbar surgery. 4. Scoliosis. 5. Pregnant and lactating women. 6. Patients with affected skin in the anesthetized area.

Design outcomes

Primary

Measure	Time frame
Number of needle passes;Successful dural puncture within 2 attempts;	—

Secondary

Measure	Time frame
Number of attempts;Successful dural puncture at the first pass;Successful dural puncture within 2 passes;Successful dural puncture at the first attempt;Ultrasonic identification time;The puncture time;Ultrasonic identification time and the puncture time;	—

Countries

China

Contacts

Public ContactLyu Ruizhao

Hebei Cangzhou Hospital of Integrated Traditional Chinese Medicine and Western Medicine

lvruizhao@163.com+86 177 7265 7375

Outcome results

None listed

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