Ankle Block Versus Popliteal Fossa Block as Primary Anesthesia for Forefoot Surgical Procedures

Ankle Block Versus Popliteal Fossa Block as Primary Anesthesia for Forefoot Surgical Procedures: A Prospective Comparison

Status

Completed

Phases

Phase 4

Study type

Interventional

Source

ClinicalTrials.gov

Registry ID

NCT01376960

Enrollment

202

Registered

2011-06-20

Start date

2011-06-30

Completion date

2016-07-31

Last updated

2016-08-22

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

Conditions

Anesthesia, Forefoot Surgery

Keywords

forefoot surgery, Ankle Block, Popliteal Fossa Block

Brief summary

The purpose of this study is to compare, for the first time ever, single shot popliteal fossa blocks to ankle blocks as primary anesthesia for patients undergoing forefoot procedures. The primary outcome variable for this study is the percentage of patients that convert to general anesthesia following either a single shot popliteal fossa block or ankle block. H0: There is no difference in the percentage of patients that convert to general anesthesia between single shot popliteal fossa blocks and ankle blocks. HA: There will be a lower percentage of patients receiving a single shot popliteal fossa block that convert to general anesthesia compared to patients receiving an ankle block.

Interventions

PROCEDUREelective forefoot surgery

Includes both soft-tissue and osseous procedures.

Study design

Allocation

RANDOMIZED

Intervention model

PARALLEL

Primary purpose

TREATMENT

Masking

NONE

Eligibility

Sex/Gender

ALL

Healthy volunteers

Inclusion criteria

* Patients undergoing elective forefoot surgery, including both soft-tissue and osseous procedures

Exclusion criteria

* Diabetes * Any form of Peripheral neuropathy * Known allergy to local anesthesia * Active infection

Design outcomes

Primary

Measure	Time frame	Description
Conversion to general anesthesia following either a single shot popliteal fossa block or ankle block	Participants will be followed for the duration of the surgery, an expected average of 2 hours	Popliteal fossa and ankle blocks are types of anesthesia used during surgery. If these methods are not effective as an anesthetic during surgery the anethesiologist will convert to general anesthesia.

Secondary

Measure	Time frame	Description
Visual Analog Pain Scale (VAS)	24 hours postoperatively	—
Patient Satisfaction	48 hours postoperative	—
Length of Post Anesthesia Care Unit (PACU) stay	Up to 6 hours postoperative	Length of PACU stay is calculated from the time the patient is taken from the operative suite to PACU, ie recovery, to the time the patient leaves PACU.
Narcotic Use	Up to 30 days postoperative	—

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026