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| Name | Class |
|---|---|
| Medical Consulting Center | NETWORK |
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This study compares the long-axis and short-axis technique of continues adductor canal block for total knee replacement surgery. Half participants will receive long-axis catheterization, while the other half will receive short-axis catheterization.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| short axis (SAX) placement of adductor canal catheters | Active Comparator | Procedure: Ultrasound guided short axis (SAX) placement of adductor canal catheters Philip CX50 ultrasound scanner guided insertion of a PAJUNK Contiplex S catheter along the short axis of the middle part of adductor canal |
|
| long axis (LAX) placement of adductor canal catheters | Experimental | Procedure: Ultrasound guided long axis (LAX) placement of adductor canal catheters Philip CX50 ultrasound scanner guided insertion of a catheter along the long axis of the middle part of adductor canal |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| ultrasound guided long axis placement of adductor canal catheter | Procedure | The long axis of the ultrasound probe is placed parallel to the long axis of the adductor canal while scanning, and the catheter is placed along the long axis of the canal using an in-plane approach |
| Measure | Description | Time Frame |
|---|---|---|
| the strength of quadriceps femoris | strength of quadriceps femoris measured on a Lovett muscle strength rating-scale within 48 hours after surgery | within 48hours after surgery |
| Measure | Description | Time Frame |
|---|---|---|
| postoperative nausea and vomiting score | Rating-scale 0-3 SAX-group vs. LAX-group | 0-2, 2-4, 4-8, 8-24, 24-48 hours postoperative |
| ambulation time | SAX-group vs. LAX-group |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Affiliation | Role |
|---|---|---|
| Yuguang Huang, MD | Peking Union Medical College Hospital | Study Chair |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Xulei CUI | Beijing | Beijing Municipality | 100730 | China |
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| ultrasound guided short axis placement of adductor canal catheter | Procedure | The long axis of the ultrasound probe is placed vertical to the long axis of the adductor canal while scanning, and the catheter is placed along the short axis of the canal using an in-plane approach |
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| Philip CX 50 Ultrasound Scanner | Device | The linear (C5-12) probe of Philip CX 50 Ultrasound Scanner is used for scanning |
|
| PAJUNK Contiplex S Catheter | Device |
|
| Ropivocaine | Drug | 0.2% ropivacaine 10ml is given as loading dose. Following that, 0.2% ropivacaine 5ml/h is given as maintenance dose. |
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| rescue sulfentanil given postoperatively as PICA | Drug | bolus: 2mg, lock time: 10min, 1h limitation: 8mg |
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| within the 7 days after surgery |
| quality of recovery | use the self-assessment 11item QoR scale to assess the patient's recovery quality,SAX-group vs. LAX-group | 3days and 7days after surgery |
| complications | Record complications including catheter dislodgment, puncture point infection, leakage,falling down,et al. | within the 7 days after surgery |
| the strength of quadriceps femoris | SAX-group vs. LAX-group | 0,2,4,8,24,48 hours postoperative |
| Pain-score (VAS), patient at rest | Pain-score measured on a Visual Analog Scale (VAS) .SAX-group vs. LAX-group | 0,2,4,8,24,48 hours postoperative |
| Pain-score (VAS), motion pain | Pain-score measured on a Visual Analog Scale (VAS) .SAX-group vs. LAX-group | 0,2,4,8,24,48 hours postoperative |
| sulfentanil consumption | record the amount（ml) of sulfentanil used | 0,2,4,8,24,48 hours postoperative |
| ID | Term |
|---|---|
| D000377 | Agnosia |
| ID | Term |
|---|---|
| D010468 | Perceptual Disorders |
| D019954 | Neurobehavioral Manifestations |
| D009461 | Neurologic Manifestations |
| D009422 | Nervous System Diseases |
| D012816 | Signs and Symptoms |
| D013568 | Pathological Conditions, Signs and Symptoms |
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