for people ages 18 years and up (full criteria)
Healthy Volunteers
healthy people welcome
at San Francisco, California
study started
estimated completion
Principal Investigator
by Scott L Hansen, MD
Photo of Scott L Hansen
Scott L Hansen



This is a randomized controlled trial designed to analyze the impact of bedrest duration on return to functional independence at discharge following sartorius flap for coverage of vascular reconstruction in the groin.


This is a pilot prospective study with the purpose of evaluating the impact of bedrest duration on outcomes of groin muscle flaps used for groin coverage in patients undergoing open, infrainguinal vascular surgery. The investigators plan to target all patients undergoing groin muscle flaps for vascular groin coverage at UCSF. All patients undergoing groin flaps will be block randomized into two cohorts: Cohort 1 - one day of bedrest (mobilize on post-op day 2) versus Cohort 2 - 5 days of bedrest (mobilize on post-op day 6). The investigators perform approximately 50 infrainguinal muscle flaps per year. They aim to enroll 140 patients (70 per cohort). The primary outcome is return to functional independence at discharge. Secondary outcomes include wound dehiscence, infection, reoperation, interventional radiology intervention, seroma, and sequela associated with prolonged bedrest including respiratory infections, duration of hospitalization, need for SNF upon discharge, and physiologic deconditioning. The investigators will also examine the impact of bedrest on patient reported outcomes one month following surgery. Patient outcomes will be followed for 3 months post-operatively.


Functional Status After Sartorius Flap of the Groin Wound Complication Early ambulation


You can join if…

Open to people ages 18 years and up

  • All patients undergoing muscle flaps following infrainguinal, open vascular surgery. Patients must be ambulatory at baseline. Patients must be able to provide informed consent.

You CAN'T join if...

  • Patients who are unable to provide informed consent. Patients are non-ambulatory at baseline. Patients' clinical status is not amenable towards early ambulation. Enrollment is at the discretion of the vascular and plastic surgeons.
  • Bilateral sartorius flaps


  • University of California, San Francisco accepting new patients
    San Francisco California 94143 United States

Lead Scientist at UCSF

  • Scott L Hansen, MD
    Professor, Surgery. Authored (or co-authored) 33 research publications.


accepting new patients
Start Date
Completion Date
University of California, San Francisco
Study Type
Last Updated