Hip Arthroplasty, Hip Pain
Conditions
Keywords
pain, Hip Resurfacing, catheter, nerve block, UCSD, hip surgery, psoas, femoral, ambulation, hip flexion, infusion
Brief summary
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.
Detailed description
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.
Interventions
PROCEDUREFemoral Nerve Block vs. Psoas Compartment Nerve Block
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.
Sponsors
University of California, San Diego
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE
Eligibility
Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No
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
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Patient's mean pain score (NRS) during perineural infusion as measured by the nursing staff at UCSD and entered in the computer system. | 24 hours beginning 7:30am day following surgery |
Secondary
| Measure | Time frame |
|---|---|
| Patient's ambulation distance as recorded by therapist (occupational or physical) in the UCSD computer system. | 3 days following surgery |
| Hip flexion, in degrees measured with a standard goneometer, as recorded by therapist (occupational or physical) in the UCSD computer system. | 3 days following surgery |
| Infusion duration of pain pump, measured on the pump itself in hours and minutes. | 3 days following surgery |
| Analgesic used, as reported by nursing staff in the UCSD computer system. | 3 days following surgery |
| Surgical/anesthetic adverse events as reported by hospital staff | day of surgery and 3 days following |
| Experiences of patient during the infusion and following, as reported to study staff in a phone conversation, one week following surgery. | 1 week following surgery |
| Duration of hospital stay, in hours, as reported in the UCSD computer system. | 3 days following surgery |
Countries
United States
Outcome results
None listed