Suprainguinal Fascia Iliaca Block vs. Adductor Canal Block for Analgesia After Total Knee Arthroplasty

This study evaluates the analgesic efficacy and motor-sparing properties of ultrasound-guided Suprainguinal Fascia Iliaca Block (S-FIB) compared with Adductor Canal Block (ACB) in patients undergoing primary total knee arthroplasty (TKA). The main hypothesis is that ACB better preserves quadriceps muscle strength, allowing earlier functional mobilization, while providing comparable (non-inferior) analgesia to S-FIB.

NCT Number	NCT07739108
Lead Sponsor	Bursa Yuksek Ihtisas Training and Research Hospital
Conditions	Arthroplasty, Knee Osteoarthritis
Enrollment	60 participants
Start Date	2026-08-12
Primary Completion	2027-08-12 (estimated)
Study Completion	2027-09-12 (estimated)
Updated on ClinicalTrials.gov	2026-08-03