Adductor canal block equal to femoral nerve block for postoperative pain relief during outpatient ACL surgery: 3 insights

The adductor canal block preserves quadriceps strength and provides equivalent levels of postoperative analgesia for outpatient ACL surgery as the conventional femoral nerve block, according to a new study in Anesthesiology.

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Here are three insights:

1. A total of 100 patients were randomized to receive adductor canal block or femoral nerve block. Fifty-two patients received ACB and 48 received FNB.

2. The difference between ACB and FNB in morphine consumption and area under the curve for pain scores were −4.8 mg and −71 mm per hour respectively.

3. The maximal voluntary isometric contraction for ACB and FNB at 45 minutes was 26.6 pound-force and 10.6 pound-force, respectively.

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