Postoperative analgesic efficacy of dual subsartorial block versus adductor canal block in ambulatory arthroscopic knee surgery: a prospective randomized controlled trial

A Randomized Controlled Trial Comparing Dual Subsartorial Block and Adductor Canal Block for Pain Control in Ambulatory Arthroscopic Knee Surgery

Status

Recruiting

Phases

Phase 3

Study type

Interventional

Source

TCTR

Registry ID

TCTR20240319003

Enrollment

Registered

2024-03-19

Start date

2024-03-14

Completion date

Unknown

Last updated

2026-08-03

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

Conditions

Anterior Cruciate Ligament Injuries Meniscus Tear Adductor Canal Block Pain Control Anterior Cruciate Ligament Injuries Meniscus Tear Adductor Canal Block Pain Control

Interventions

Analgesia for ambulatory arthroscopic knee surgery,Pain control Analgesia for ambulatory arthroscopic knee surgery

Experimental Procedure/Surgery,Active Comparator Procedure/Surgery

Dual subsartorial block,Adductor canal block

Eligibility

Sex/Gender

All

Age

25 Years to 55 Years

Inclusion criteria

Inclusion criteria: Patients aged between 25 and 55 years. Bodyweight > 40 kg BMI between 18 - 35 kg/m ASA physical status of I or II Written informed consent obtained from the patients, stating I appreciate the opportunity to participate in this study, along with their signature.

Exclusion criteria

Exclusion criteria: Adults who are unable to provide their own consent. Pre-existing lower extremities weakness Patients who show signs of infection at the site of the block BMI>35kg/m2 Allergy or contraindication to any drug used in this study Coagulopathy (assessed through medical history and physical examination, and if clinically necessary, through blood tests, e.g., platelet count =< 100,000 cells/mm3, INR >= 1.4) Chronic pain syndromes requiring the use of chronic opioids History of kidney impairment (estimated GFR < 60ml/min) History of liver dysfunction (history of cirrhosis, portal hypertension or variceal bleeding, AST, ALT >= 50 IU/L) Pregnancy Refusal to participate or withdrawal of consent at any stage of the study

Design outcomes

Primary

Measure	Time frame
Pain intensity immediate after surgery The numerical rating scale (NRS) score	—

Secondary

Measure	Time frame
Pain intensity before discharge and 24 hours post-operatively by phone The numerical rating scale (NRS) score,Opioid consumption during surgery and after surgery, before discharge The total amount of morphine milligram equivalent (MME),Time to first opioid request immediately after the block performance until discharge Duration from the end of the block performance to the time at which point the first dose of rescue opioid is requested,Quadriceps strength before discharge at the ambulatory surgical unit Muscle strength grading of quadriceps as follows; 0: no movement, 1: flicker of movement, 2 : movement without gravity, 3: movement against gravity, 4: against weak resistance, 5: normal power,Patient satisfaction assessed by five-point Likert scale 24 hours post-operatively by phone Satisfaction assessed using a five-point Likert scale ranging from 1 (very dissatisfied) to 5 (very satisfied) at 24 hours	—

Measure

Time frame

Pain intensity before discharge and 24 hours post-operatively by phone The numerical rating scale (NRS) score,Opioid consumption during surgery and after surgery, before discharge The total amount of morphine milligram equivalent (MME),Time to first opioid request immediately after the block performance until discharge Duration from the end of the block performance to the time at which point the first dose of rescue opioid is requested,Quadriceps strength before discharge at the ambulatory surgical unit Muscle strength grading of quadriceps as follows; 0: no movement, 1: flicker of movement, 2 : movement without gravity, 3: movement against gravity, 4: against weak resistance, 5: normal power,Patient satisfaction assessed by five-point Likert scale 24 hours post-operatively by phone Satisfaction assessed using a five-point Likert scale ranging from 1 (very dissatisfied) to 5 (very satisfied) at 24 hours

—

Countries

Thailand

Contacts

Public ContactTheerawat Chalacheewa

Department of Anesthesiology, Faculty of Medicine Ramathibodi Hospital, Mahidol University

drtheerawat@gmail.com022011523

Outcome results

None listed

Source: TCTR (via WHO ICTRP) · Data processed: Aug 9, 2026