None listed
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: Patients aged 19-80 who undergo adductor canal block to control postoperative pain among patients undergoing regular partial or total knee replacement surgery
Exclusion criteria
Exclusion criteria: Subjects who meet any of the following criteria cannot participate in this test. 1. Patients with an American Society of Anesthesiologists physical classification standard (ASA physical status) of 4 or higher 2. If the body mass index is more than 30kg/m2 3. Patients with existing peripheral neuropathy 4. Hypersensitivity to local anesthetics 5. Infection at needle insertion site 6. When consent is withdrawn 7. Clinical trial subjects who are deemed unsuitable for this clinical trial according to the opinion of the investigator or test manager.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| The time from skin puncture to needle removal | — |
Secondary
| Measure | Time frame |
|---|---|
| Needle position time (T1-T0);Number of needle direction adjustments;Needle visualization score;Whether needle visualization is lost during operation;Assessment of local anesthetics spread;Operator’s satisfaction (visual analogue scale, VAS: 0 – 100);Perceived level of difficulty (easy, normal, difficult);Patient's pain score (NRS, numeric rating scale) 6 hours after spinal anesthesia | — |
Countries
Korea, Republic of
Contacts
Seoul National University Hospital