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| Name | Class |
|---|---|
| Medical University of Graz | OTHER |
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The purpose of this study is to compare two accepted methods of pain control in knee arthroplasty surgery.The first method combines the periarticular injection of ropivacaine with continuous blockade of the femoral nerve.The second method uses periarticular infiltration of ropivacaine in combination with an bolus of ropivacaine into an intraarticular catheter placed intraoperatively followed by a continuous intraarticular infusion of ropivacaine. All patient will also receive a sustained-release oral opioid and oral rescue opioids determined by pain severity using the Visual Analog Scale (VAS)
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| CFNB, periarticular infiltration | Active Comparator |
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| Intraarticular catheter, periarticular infiltration | Active Comparator |
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| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Continuous femoral nerve block + periarticular infiltration | Procedure | Initial bolus of ropivacaine 5mg/ml 30mls into the femoral-nerve-catheter preoperatively. Periarticular infiltration of ropivacaine 2mg/ml 150 mls intraoperatively. Continuous perineural infusion of ropivacaine 2mg/ml at a rate of 6 mls/hr postoperatively. Rate can be adjusted to achieve optimal pain control and avoid motor blockade. |
| Measure | Description | Time Frame |
|---|---|---|
| Static and dynamic pain scores (VAS) | 72 h |
| Measure | Description | Time Frame |
|---|---|---|
| Maximum knee flexion (active/passive)>= 90° | 72 h |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Role | Phone | Extension | |
|---|---|---|---|---|
| Karl Trauner, M.D. | Contact | +43 3152 899 3701 | karl.trauner@lkh-feldbach.at | |
| Angelika Rohrleitner, M.D. | Contact | +43 3152 899 3701 | angelika.rohrleitner@lkh-feldbach.at |
| Name | Affiliation | Role |
|---|---|---|
| Karl Trauner, M.D. | LKH Feldbach | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| LKH Feldbach | Recruiting | Feldbach | A-8330 | Austria |
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| Intraarticular and periarticular ropivacaine | Procedure | Periarticular infiltration of 150 mls ropivacaine 2mg/ml intraoperatively, intraarticular injection of 40 mls ropivacaine 2 mg/ml at skin closure followed by infusion of ropivacaine 2 mg/ml at a rate of 4 mls/hr delivered by an intraarticular catheter until the morning of postoperative day 3. |
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