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Study never officially began- currently closed with IRB.
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The purpose of the study is to compare continuous femoral nerve block with continuous proximal adductor canal block for postoperative pain control and rehabilitation.
Patients meeting the criteria: American Society of Anesthesiologists (ASA) class I and II, that are scheduled for elective total knee arthroplasty, will be recruited into the study. Subjects will be randomized into 2 groups: those who will receive a continuous proximal adductor canal block (ACB) and those who will receive a continuous femoral nerve block (FNB).
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| adductor canal block (ACB) | Active Comparator | Subjects randomized to this groups receive a continuous proximal adductor canal block (ACB) during surgery. |
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| femoral nerve block (FNB) | Active Comparator | Subjects randomized to this groups receive a continuous femoral nerve block (FNB) during surgery. |
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| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Continuous proximal adductor canal block | Procedure | Subjects will be randomized into 2 groups: those who will receive a continuous proximal adductor canal block (ACB) and those who will receive a continuous femoral nerve block (FNB). |
| Measure | Description | Time Frame |
|---|---|---|
| Motor effects | Subjects' change in motor effects will be assessed as maximum voluntary isometric contraction (MVIC) in the quadriceps muscle. | 24 hours (postoperatively) |
| Measure | Description | Time Frame |
|---|---|---|
| Pain score | Subjects' pain will be assessed using a numerical pain score, where 10 is the greatest amount of pain. | On average between 6 and 8 hours postoperatively |
| Pain score | Subjects' pain will be assessed using a numerical pain score, where 10 is the greatest amount of pain. |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Affiliation | Role |
|---|---|---|
| Richa Wardham, MD | Yale University | Principal Investigator |
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| Continuous femoral nerve block | Procedure | Subjects will be randomized into 2 groups: those who will receive a continuous proximal adductor canal block (ACB) and those who will receive a continuous femoral nerve block (FNB). |
|
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| 24 hours (postoperatively) |
| Opioid consumption | Subjects' pain will be assessed by tracking opioid consumption postoperatively. | On average between 6 and 8 hours postoperatively |
| Opioid consumption | Subjects' pain will be assessed by tracking opioid consumption postoperatively. | 24 hours (postoperatively) |
| Motor effects | Subjects' change in motor effects will be assessed as maximum voluntary isometric contraction (MVIC) in the quadriceps muscle. | On average between 6 and 8 hours postoperatively |