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Completed

NCT Number: NCT00967980

Femoral Versus Psoas Continuous Peripheral Nerve Blocks Following Hip Arthroplasty

The purpose of this research study is to determine if the insertion site of a perineural catheter, or tiny tube placed next to the nerves that go to the hip which you will have surgery, affects the amount of pain relief that is experienced after surgery.

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Key information

Conditions

Hip Arthroplasty Hip Pain Neurologic Manifestations Pain Pathological Conditions, Signs and Symptoms Signs and Symptoms

Age range

18 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Phase 4

Primary location

UCSD Medical Center

San Diego, California, 92103, United States

About this study

To determine the association between perineural catheter location and postoperative analgesia, analgesic requirements, ambulatory distance, and flexion following hip arthroplasty.

Primary Hypothesis: Differing the catheter insertion site (femoral vs. psoas compartment) for a perineural local anesthetic infusion is not associated with lower pain scores during the 24-hour period beginning the morning following hip arthroplasty.

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • primary, unilateral hip arthroplasty or hip resurfacing
  • age greater than or equal to 18 years
  • postoperative analgesic plan includes perineural local anesthetic infusion

Exclusion criteria

  • morbid obesity (BMI greater than 40)
  • chronic, high-dose opioid use
  • history of opioid abuse
  • pregnancy
  • incarceration
  • amu meirp-muscular deficit of the ipsilateral femoral nerve and/or quadriceps muscle
  • inability to communicate with hospital staff

Treatment and study plan

Femoral Nerve Block vs. Psoas Compartment Nerve Block

Procedure

Patients, undergoing hip arthroplasty or hip resurfacing will be randomized to one of two groups: femoral nerve block or psoas compartment nerve block. Patients randomized to femoral nerve block will receive this block prior to surgery. Patients randomized to psoas compartment nerve block will receive this block prior to surgery. Both patients will receive Mepivicaine via catheter prior to surgery and following surgery, Ropivicaine via pain pump.

Primary outcomes

  1. Patient's mean pain score (NRS) during perineural infusion as measured by the nursing staff at UCSD and entered in the computer system.

    Time frame: 24 hours beginning 7:30am day following surgery

Secondary outcomes

  1. Analgesic used, as reported by nursing staff in the UCSD computer system.

    Time frame: 3 days following surgery

  2. Patient's ambulation distance as recorded by therapist (occupational or physical) in the UCSD computer system.

    Time frame: 3 days following surgery

  3. Hip flexion, in degrees measured with a standard goneometer, as recorded by therapist (occupational or physical) in the UCSD computer system.

    Time frame: 3 days following surgery

  4. Infusion duration of pain pump, measured on the pump itself in hours and minutes.

    Time frame: 3 days following surgery

  5. Duration of hospital stay, in hours, as reported in the UCSD computer system.

    Time frame: 3 days following surgery

  6. Surgical/anesthetic adverse events as reported by hospital staff

    Time frame: day of surgery and 3 days following

  7. Experiences of patient during the infusion and following, as reported to study staff in a phone conversation, one week following surgery.

    Time frame: 1 week following surgery

Sponsors and collaborators

Lead sponsor

University of California, San Diego

Other

Registry information

Important dates

Study start
2009
Primary completion
2010
Study completion
2010
First posted
Aug 28, 2009
Registry last updated
Sep 24, 2010

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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