NCT07301476

Evaluation of Local Anesthetic Diffusion to the Sciatic Nerve During Adductor Canal Block

Evaluation of Local Anesthetic Diffusion to the Sciatic Nerve During Adductor Canal Block: an Observational Study

• Status: Recruiting
• Phase: —
• Study type: Observational
• Enrollment: 70 (estimated)
• Sponsor: Assistance Publique - Hôpitaux de Paris · Academic / Other
• Sex: All
• Age: 18 Years
• Healthy volunteers: Not accepted

Summary

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.

Detailed description

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.

Conditions

• Sciatic Nerve
• Adductor Canal Syndrome

Timeline

• Start date: 2025-12-10
• Primary completion: 2027-12-01
• Completion: 2027-12-01
• First posted: 2025-12-24
• Last updated: 2025-12-24

Locations

1 site across 1 country: France