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Dual Subsartorial Versus Adductor Canal Block Versus Femoral Nerve Block for Postoperative Analgesia in Patients Undergoing Total Knee Arthroplasty

Dual Subsartorial Block Versus Adductor Canal Block Versus Femoral Nerve Block for Postoperative Analgesia in Patients Undergoing Total Knee Arthroplasty: A Randomized Clinical Trial

Status
Completed
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07082374
Enrollment
60
Registered
2025-07-24
Start date
2025-07-24
Completion date
2026-06-01
Last updated
2026-06-22

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

Conditions

Adductor Canal Block, Dual Subsartorial Block, Femoral Nerve Block, Postoperative Analgesia, Total Knee Arthroplasty

Brief summary

This study aims to compare the effect of dual subsartorial block (DSB), adductor canal block (ACB), and femoral nerve block (FNB) for postoperative analgesia in patients undergoing total knee arthroplasty (TKA).

Detailed description

Total knee arthroplasty (TKA) offers increased joint mobility and painless ambulation to patients. Femoral nerve block (FNB) is commonly used to relieve postoperative pain and opioid consumption. Adductor canal block (ACB) is a common analgesic intervention for postoperative pain control following TKA. The dual subsartorial block (DSB) is a novel procedure-specific and motor-sparing regional analgesia (RA) technique that may reduce overall postoperative opioid consumption when used in conjunction with multimodal analgesia.

Interventions

OTHERDual subsartorial block

Patients will receive dual subsartorial block (DSB).

OTHERAdductor canal block

Patients will receive an adductor canal block (ACB).

OTHERFemoral nerve block

Patients will receive a femoral nerve block (FNB).

Sponsors

Tanta University
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
18 Years to 75 Years
Healthy volunteers
No

Inclusion criteria

* Age from 18 to 75 years. * Both sexes. * American Society of Anesthesiology (ASA) physical status I-II. * Undergoing total knee arthroplasty (TKA) under general anesthesia.

Exclusion criteria

* Severe valgus deformity. * Acute/chronic kidney disease. * Neurological deficit. * Cognitive dysfunction. * Local infection at the site of injection. * Coagulopathy. * Hypersensitivity and/or allergies to local anesthetic (LA) or any of the study medications. * Chronic opioid consumption (daily or almost daily use of opioids for \> three months). * Operative limb neuropathy.

Design outcomes

Primary

MeasureTime frameDescription
Time to the 1st rescue analgesia24 hours postoperativelyTime to the first request for the rescue analgesia (time from the end of surgery to first dose of morphine administrated).

Secondary

MeasureTime frameDescription
Intraoperative fentanyl consumptionIntraoperativelyAdditional fentanyl bolus dosages of 1 µg/kg IV will be administered if heart rate or mean arterial blood pressure elevated more than 20% of the baseline (after exclusion of other causes than pain).
Degree of pain24 hours postoperativelyEach patient will be instructed about postoperative pain assessment with the visual analog scale (VAS). VAS (0 represents "no pain" while 10 represents "the worst pain imaginable"). VAS will be assessed at PACU, 2, 4, 6, 8, 12, 18 and 24 h postoperatively.
Degree of patient satisfaction24 hours postoperativelyDegree of patient satisfaction will be assessed on a 5-point Likert scale patient satisfaction (1, extremely dissatisfied; 2, unsatisfied; 3, neutral; 4, satisfied; 5, extremely satisfied).
Incidence of adverse events24 hours postoperativelyIncidence of adverse events such as bradycardia, hypotension, nausea, vomiting, respiratory depression, pruritus, or any other complication.

Countries

Egypt

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Jun 23, 2026