Evaluation of Local Anesthetic Diffusion to the Sciatic Nerve During Adductor Canal Block: an Observational Study
Evaluation of Local Anesthetic Diffusion to the Sciatic Nerve During Adductor Canal Block: an Observational Study
Adductor canal block is an effective analgesic technique for major knee surgery. However, the saphenous nerve block is not sufficient to explain this block's efficiency. It has been shown that adductor canal block can spread to the tibial and fibular nerves through the adductor hiatus. However, this diffusion's frequency has never been measured. The main objective of this study is to assess clinically the frequency of the spread of the adductor canal block to the fibular and tibial nerves.
Adductor canal block is an effective analgesic technique for major knee surgery. The PROSPECT group recommends this block in first intention for locoregional anesthesia in total knee arthroplasty. It has been shown to not be inferior to femoral nerve block in this indication.
The adductor canal block targets the saphenous nerve and, through its spread in the adductor canal, the posterior branch of obturator nerve and the vastus medialis nerve. However, these nerves can't fully explain this block's efficiency.
It has been shown that local anesthetic can spread in the adductor canal to the tibial and fibular nerves through the adductor hiatus. However, this spread is inconstant, and no study has evaluated the frequency of this spread yet.
The main objective of this study is to assess the diffusion's frequency of adductor canal block to fibular and tibial nerves through clinical sensorimotor testing.
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