Subparaneural Sciatic Nerve Blocks Above and Below Its Bifurcation at the Popliteal Fossa: A Prospective Randomized Study

Status

Recruiting

Phases

Phase 1

Study type

Interventional

Source

ChiCTR

Registry ID

ChiCTR-IIC-17012634

Enrollment

Unknown

Registered

2017-09-07

Start date

2017-09-11

Completion date

Unknown

Last updated

2018-06-18

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

musculoskeletal disorders in the foot that require surgery

Interventions

Two groups:Ultrasound guided Popliteal sciatic nerve block - subparaneural injection above or below the bifurcation versus different onset time of the block

Eligibility

Sex/Gender

All

Age

18 Years to 75 Years

Inclusion criteria

Inclusion criteria: Adult patients, ASA physical status I-III, aged between 18 to 75 years and scheduled to undergo elective fore foot surgery, unrelated to trauma, under regional anesthesia will be recruited

Exclusion criteria

Exclusion criteria: Refusal, ASA physical status > III, pregnancy, neuromuscular disorder, prior surgery int he popliteal fossa, coagulopathy, allergy to local anesthetic drugs, and skin infection at the site of needle insertion

Design outcomes

Primary

Measure	Time frame
The sensory and motor function in the ipsilateral foot;	—

Secondary

Measure	Time frame
number of needle passes; any complication related to local anesthetic toxicity; any discomfort experienced by patient during injection; Local anesthetic spread after injection; size of sciatic nerve.;	—

Countries

China

Contacts

Public ContactProf Manoj Kumar Karmakar

Department of Anaesthesia & Intensive Care, Prince of Wales Hospital

karmakar@cuhk.edu.hk+ 852 3505 2735

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Feb 4, 2026