Comparison of Analgesic Effects of ACB Versus ACB Combined With BiFeS Block in Meniscopathy Surgery

Meniscopathy surgeries are commonly associated with moderate postoperative pain, particularly during early mobilization and rehabilitation. Inadequate postoperative analgesia may negatively affect functional recovery, delay ambulation, increase opioid consumption, and contribute to opioid-related adverse effects. Therefore, effective multimodal analgesic strategies are of considerable importance in patients undergoing arthroscopic knee procedures. Adductor canal block (ACB) is a widely used regional anesthesia technique that provides effective analgesia while largely preserving quadriceps muscle strength. However, its limited effect on posterior knee capsule innervation may result in insufficient control of posterior knee pain. Recently, the biceps femoris short head (BiFeS) block has been described as a novel motor-sparing fascial plane block targeting the posterolateral knee capsule and may provide additional analgesic benefit when combined with ACB. In this study, it was aimed to compare the postoperative analgesic efficacy of adductor canal block alone and adductor canal block combined with BiFeS block in patients undergoing surgery for meniscopathy.

NCT Number	NCT07603323
Lead Sponsor	Ankara Etlik City Hospital
Conditions	Meniscopathy Surgery, Peripheral Nerve Block, Pain Management
Enrollment	135 participants
Start Date	2026-05-27
Primary Completion	2027-05-07 (estimated)
Study Completion	2027-05-21 (estimated)
Updated on ClinicalTrials.gov	2026-05-29