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The following is a double blinded, randomized controlled clinical trial to test the hypothesis that a single epidural injection of Ropivaciane® intra operatively will:1) Single intra-operative epidural injection of Ropivaciane® will result in decreased postoperative pain and opioid use in both minimally invasive (MIS) and open lumbar fusion patients; 2) Decreased postoperative pain will lead to improved clinical outcomes; and 3) Elucidate if there are differences in pain management between MIS and open surgical procedures. The proposed study will add novel information to current knowledge by 1) exploring of the effects of intra-operative single epidural injection analgesic on patients receiving MIS compared to open surgery, and 2) investigate potential immediate and short-term functional improvements gained from intra-operative single injection of Ropivaciane®.
This double blinded, randomized clinical trial will test hypotheses by administering a single epidural injection prior to wound closure of either Ropivaciane® or saline.All pre-surgical activities and anesthesia will proceed as usual, with the addition of a single epidural injection immediately prior to wound closure 2 levels, or 10cm above the operated spinal level. Experimental groups will receive 0.2% Ropivaciane® (10 ml; dose shown to be effective without transient weakness), 9 and the control group will receive 0.9% saline solution (10 ml). Accurate placement into the space will be verified by the injection of contrast medium (iohexol, 180 mgl/ml) under fluoroscopic guidance. Epidural solutions will be prepared prior to surgery by pharmacy and coded; surgeons will administer according to the patient's code maintaining the double-blind procedure. It is important to note that treatment as usual differs between open and MIS cohorts. The question of interest is whether the addition of the epidural analgesic to current practices for each surgery type results in increased positive outcomes, whether this is due to synergistic effects or not. Following operative treatment, Foley Urinary catheter will be removed 24 hours post-operatively, unless otherwise clinically indicated.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Experimental | Experimental | Administration of epidural Ropivaciane |
|
| Control | Placebo Comparator | Administration of saline |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Ropivacaine | Drug | Administration of Ropivaciane via epidural injection intra-operatively |
| |
| Measure | Description | Time Frame |
|---|---|---|
| Change in Pain | Back and leg pain measured using the validated Numeric Rating Scales (NRS) for back and leg pain. | Administered 6 weeks pre-operatively, 2, 4, 8, 12, 24 and 48 hours post-operatively, 6 months post operatively, and 12 months post operatively |
| Measure | Description | Time Frame |
|---|---|---|
| Change in Disability | Measurement of disability attributed to "back problem" using the validated Oswestry Disability Index (ODI). | Administered 6 weeks pre-operatively, 6 and 12 months post-operatively |
| Change in General Health |
| Measure | Description | Time Frame |
|---|---|---|
| Change in Ambulation | The patient's ability to walk following surgery as measured using Ortho-Care Step Watch Activity Monitors (SAM) which will be attached to the patient's ankle during their stay in hospital. | Investigated 2, 4, 8, 12, 24 and 48 hours post-operatively. |
| Adverse Events |
Inclusion Criteria:
Exclusion Criteria:
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| Name | Role | Phone | Extension | |
|---|---|---|---|---|
| Erin E Bigney, BA MA | Contact | 506 648 6028 | cescresearch@gmail.com | |
| Eden A Richardson, BA | Contact | 506 648 6116 | Eden.Richardson@Horizonnb.ca |
| Name | Affiliation | Role |
|---|---|---|
| Neil A Manson, MD FRCSC | Canada East Spine Centre; Horizon Health Network Department of Orthopaedic Surgery; Dalhousie University Faculty of Medicine Department of Surgery | Principal Investigator |
| Edward P Abraham, MD FRCSC | Canada East Spine Centre; Horizon Health Network Department of Orthopaedic Surgery; Dalhousie University Faculty of Medicine Department of Surgery |
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| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 14633762 | Background | Raw DA, Beattie JK, Hunter JM. Anaesthesia for spinal surgery in adults. Br J Anaesth. 2003 Dec;91(6):886-904. doi: 10.1093/bja/aeg253. | |
| 14667752 | Background | Kehlet H, Dahl JB. Anaesthesia, surgery, and challenges in postoperative recovery. Lancet. 2003 Dec 6;362(9399):1921-8. doi: 10.1016/S0140-6736(03)14966-5. |
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No individual participant data will be shared. Study results will be made available following data analysis.
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| ID | Term |
|---|---|
| D010149 | Pain, Postoperative |
| D010146 | Pain |
| ID | Term |
|---|---|
| D011183 | Postoperative Complications |
| D010335 | Pathologic Processes |
| D013568 | Pathological Conditions, Signs and Symptoms |
| D009461 | Neurologic Manifestations |
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Not provided
| ID | Term |
|---|---|
| D000077212 | Ropivacaine |
| D012965 | Sodium Chloride |
| ID | Term |
|---|---|
| D000813 | Anilides |
| D000577 | Amides |
| D009930 | Organic Chemicals |
| D000814 | Aniline Compounds |
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Patients are randomized into either the experimental arm (administration of Ropivaciane) or the control arm (administration of saline).
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Randomization of arms are conducted by the pharmacy department, and drug or saline preparation are prepared by the pharmacy department.
| Saline |
| Other |
Administration of saline via epidural injection intra-operatively |
|
Measurement of overall general health as measured by the validated Short Form General Health Survey (SF-12)
| Administered 6 weeks pre-operatively, 6 and 12 months post-operatively |
| Change in Medication Use | Medication used to control pain post-operatively as given by a qualified health professional while the patient is in hospital. | Investigated 2, 4, 8, 12, 24 and 48 hours post-operatively. |
Adverse Events (AEs) will be measured using the validated Spine Adverse |
| The total number of adverse events will be measured at the time of patient discharge, between 48 hours and 120 hours following surgical intervention |
| Principal Investigator |
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| D012816 | Signs and Symptoms |
| D000588 |
| Amines |
| D002712 | Chlorides |
| D006851 | Hydrochloric Acid |
| D017606 | Chlorine Compounds |
| D007287 | Inorganic Chemicals |
| D017670 | Sodium Compounds |