Pain Clinical Trial
Official title:
Ultrasound Guided Repositioning of a New Suture-method Catheter for Adductor Canal Block - a Randomized Study in Healthy Volunteers
Verified date | March 2017 |
Source | Nordsjaellands Hospital |
Contact | n/a |
Is FDA regulated | No |
Health authority | |
Study type | Interventional |
This is a randomized clinical trial in healthy volunteers. 12 volunteers will have suture-method catheters placed in the adductor canal of each leg using the long-axis plane and short-axis plane technique. The investigators will inject LA in both catheters to confirm correct position. Following return of cold sensation the catheter is then displaced intentionally. The orifice is identified by injection of isotonic saline to ensure a proper displacement (spread outside of the adductor canal) and the distance from the delivery orifice of the catheter to the adductor canal is noted. A second investigator will assess distance from the LA delivery orifice of the catheter to the adductor canal using hydrodissection with isotonic saline to pinpoint the delivery orifice and subsequently reposition the catheter to obtain LA spread within the adductor canal. Successful repositioning is defined as a combination of LA spread within the adductor canal and loss of cold sensation on the medial part of the lower leg.
Status | Completed |
Enrollment | 12 |
Est. completion date | April 18, 2017 |
Est. primary completion date | April 18, 2017 |
Accepts healthy volunteers | Accepts Healthy Volunteers |
Gender | All |
Age group | 18 Years and older |
Eligibility |
Inclusion Criteria: - Male or female =18 years of age. - ASA classification = II. - Written informed consent obtained from subject and ability for subject to comply with the requirements of the study. Exclusion Criteria: - Previous surgery or ongoing pain or other disability of investigated region resulting in sensory or neurologic deficits in the investigated region. - Allergy to LA. - Pregnancy (all female participants will be tested for urine hCG), breastfeeding, or unwilling to practice birth control during participation in the study. |
Country | Name | City | State |
---|---|---|---|
Denmark | Nordsjællands Hospital | Hillerød |
Lead Sponsor | Collaborator |
---|---|
Nordsjaellands Hospital |
Denmark,
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | Successful repositioning | Defined as a combination of spread within the adductor canal and loss of cold sensation on the medial part of the lower leg after repositioning and second LA injection. - investigator 3 will evaluate spread and investigator 2 will evaluate cold sensation |
15 min after second injection | |
Secondary | Successful primary placement | Defined as a combination of spread within the adductor canal and loss of cold sensation after initial LA injection - investigator 1 will evaluate spread and investigator 2 will evaluate cold sensation | 15 min after first injection | |
Secondary | Estimation of Limits of Agreement | in evaluation of displacement distance of the catheter between investigator 1 and 3 | within 15 minutes, after displacement/repositioning.(recorded by after displacement and repeated just before attempted repositioning) | |
Secondary | Interrater agreement for satisfactory spread within the adductor Canal, (Cohen's Kappa) | Investigator 3 and 4 will independently evaluate spread within the adductor canal. | recorded immediately after second LA injection |
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