The Effects of Various Concentrations of Ropivacaine on the Onset and Duration of Ankle Block
Status:
Not yet recruiting
Trial end date:
2026-08-01
Target enrollment:
Participant gender:
Summary
Peripheral nerve blocks are essential in ensuring effective regional anesthesia and
postoperative analgesia in forefoot surgery for hallux valgus repair. Many factors influence
the onset and duration of peripheral nerve blocks. In the advent of ultrasound-guided nerve
blocks, the accuracy in administering LA has significantly improved, potentially reducing the
required dosage, which is also associated with less risk for toxicity. However, the effect of
the concentration of LA on the onset time and duration of ultrasound-guided ankle blocks for
forefoot surgery has not yet been studied. This poses a clinically relevant dilemma regarding
the necessity of administering lower or higher concentrations of ropivacaine to achieve a
clinically relevant faster onset time and longer duration of an ankle block.