Minimum effective concentration of ropivacaine for ultrasound-guided adductor canal block combined with IPACK block in total knee arthroplasty

Status

Active, not recruiting

Phases

Early Phase 1

Study type

Interventional

Source

ChiCTR

Registry ID

ChiCTR2100048757

Enrollment

Unknown

Registered

2021-07-16

Start date

2021-08-01

Completion date

Unknown

Last updated

2022-03-28

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

Conditions

Osteoarthritis of the knee

Interventions

Group A:Adductor canal block combined with IPACK block

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: 1. Patients who need unilateral primary TKA surgery due to severe knee osteoarthritis; 2. Age is 40~80 years old; 3. Body mass index is 20~35 kg/m2; 4. The preoperative American Society of Anesthesiologists (ASA) classification (anesthesia risk assessment) was grade I-III.

Exclusion criteria

Exclusion criteria: 1. Those who are allergic to anesthetics and sulfonamides; 2. There is moderate or higher knee joint deformity (varus and flexion) and joint stiffness; 3. Those who drink heavily or take opioids for a long time; 4. Language barriers and those who cannot complete the numerical rating scales (NRS) of pain; 5. Patients with neuropathy on the side of the operation; 6. Mental patients; 7. Those with previous peptic ulcer.

Design outcomes

Primary

Measure	Time frame
Whether the nerve block was successful;	—

Countries

China

Contacts

Public ContactYang Jing

West China Hospital, Sichuan University

550298001@qq.com+86 18280213153

Outcome results

None listed

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