Tow Techniques of Adductor Canal Block for Analgesia After Total Knee Replacement

Not Applicable

Completed

• Conditions: Nerve Block; Analgesia; Total Knee Arthroplasty
• Interventions: Procedure: ultrasound-guided short-axis placement of catheter at the entrance of the adductor canal; Procedure: ultrasound-guided long-axis placement of catheter at the middle of the adductor canal

• Registration Number: NCT03942133
• Lead Sponsor: Peking Union Medical College Hospital

Brief Summary

This study compares the tow technique of continues adductor canal block for total knee replacement surgery. Half participants will receive catheterization at the entrance of the adductor canal, while the other half will receive catheterization at the middle point of the adductor canal.

Detailed Description

Not available

Study Timeline

• Study First Submitted: 2019-05-06
• Study First Submitted QC: 2019-05-07
• Study First Posted: 2019-05-08
• Study Start: 2019-05-11
• Status Verified: 2019-12
• Primary Completion: 2019-12-08
• Study Completion: 2019-12-16
• Last Update Submitted: 2019-12-29
• Last Update Posted: 2020-01-02

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 62

Inclusion Criteria

• 18-80 years
• Knee-arthroscopy
• Written consent
• ASA I-III
• BMI 19-35

Exclusion Criteria

• Unable to communicate with the investigators (e.g., a language barrier or a neuropsychiatric disorder).
• coagulopathy or on anticoagulant medication
• Allergic reactions toward drugs used in the trial
• History of substance abuse
• Infection at injection site
• Can not be mobilised to 5 meters of walk pre-surgery

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
entrance placement of adductor canal catheter	ultrasound-guided short-axis placement of catheter at the entrance of the adductor canal	-
middle point placement of adductor canal catheter	ultrasound-guided long-axis placement of catheter at the middle of the adductor canal	-

Primary Outcome Measures

Name	Time	Method
cumulative sulfentanil consumption at 24 hours after surgery	24 hours after surgery

Secondary Outcome Measures

Name	Time	Method
incidence of postoperative nausea and vomiting (PONV)	within 48 hours after surgery
Patient satisfaction with anesthesia	within 5th day after surgery	Patient satisfaction with anesthesia was assessed using a 5-point scale (5, very satisfied; 4, satisfied; 3, neither satisfied nor dissatisfied; 2, dissatisfied; 1, very dissatisfied)
complications	within 3days after surgery	Record complications including catheter dislodgment, puncture point infection, leakage,falling down,et al.
cumulative sulfentanil consumption at other time points after surgery	2,4,8,48 hours postoperatively
the strength of quadriceps femoris	0,2,4,8,24,48 hours postoperatively	Quadriceps strength was assessed on a 0-5 scale as per the Medical Research Council Scale quadriceps motor strength(0 = no voluntary contraction possible, 1 = muscle flicker, but no movement of limb, 2 = active movement only with gravity eliminated, 3 = movement against gravity but without resistance, 4 = movement possible against some resistance and 5 = normal motor strength against resistance)
The pain scores at rest determined by the numeric rating scale (NRS, 0-10)	at 0,2,4,8,24,48 hours postoperatively	11-point numerical rating scale (NRS; 0, no pain; 10, maximum pain imaginable).
The pain scores on adduction of the keen determined by the numeric rating scale (NRS, 0-10)	at 0,2,4,8,24,48 hours postoperatively	11-point numerical rating scale (NRS; 0, no pain; 10, maximum pain imaginable).

Trial Locations

Locations (1)

Peking Union Medical College Hospital; 🇨🇳 Beijing, China