Does Intrathecal Morphine Affect Outcomes in Spine Deformity Surgery

Study Overview
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Brief Summary
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This study aims to compare the effects of intrathecal morphine to traditional pain management strategies on post-operative recovery for deformity surgery.

Detailed Description
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Background Deformity surgery is considered one of the most painful procedures patients can undergo in medicine today. Stringent protocols for pain management have done much to dramatically increase patient satisfaction, but the procedure still lags considerably behind advances in pain control when compared to other procedures such as total joint surgery. Specifically, it has been reported that over half of patients undergoing spine surgery report inadequate pain control the first 24 hours after surgery. Uncontrolled pain has been shown to correlate with prolonged hospital stays, delayed ambulation, poor functional outcomes, and increased risk for the development of chronic pain. Furthermore, the large amount of narcotics given to patients in an attempt to mitigate their pain postoperatively often leads to significant complications in their own right, such as ileus, mental status changes, and nausea. New modalities to treat postoperative pain, especially in the initial days following deformity correction, are needed. Intrathecal (subarachnoid) injection of morphine has been used to treat severe pain since the 1970's. Its efficacy in treating postoperative pain has been well documented in various specialties including obstetrics, oncology, general surgery, and orthopedic surgery. Specific to spine surgery, intrathecal morphine is an attractive option given the access and visualization of the thecal sac in addition to the high demand of pain control required postoperatively. However, there remains no definitive consensus regarding the use of intrathecal morphine in spine surgery. Current literature is limited by few randomized trials, small sample sizes, heterogeneity of outcomes recorded, and an unclear association with complications. Additionally, there is a paucity of data dedicated to patients undergoing deformity correction. Accordingly, there is a need for high-quality trials to investigate the role of intrathecal morphine in adult spinal deformity surgery. In this study, we hypothesized that the use of intrathecal morphine will significantly reduce post-operative pain after deformity surgery, reduce opioid utilization, decrease hospital stay, allow for earlier ambulation, increase patient satisfaction, and have comparable complications to traditional pain management strategies. This study aims to compare the effects of intrathecal morphine to traditional pain management strategies on post-operative recovery for deformity surgery.

Official Title
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Does Intrathecal Morphine Affect Outcomes in Spine Deformity Surgery: A Prospective, Randomized Clinical Controlled Trial

Conditions
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Low Back Pain

Intervention / Treatment
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* Drug: Intrathecal Morphine Injection
* Drug: Pain Relieving


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Adult patients 18 years and older with a diagnosis of adult or degenerative scoliosis, Patients meeting criteria for surgical correction involving back and/or leg pain Fusion of 4+ levels, Competency to undergo informed consent process, Medical clearance for spinal fusion surgery, Exclusion Criteria: Patients with lumbar spine inaccessible for intrathecal Duragesic (fused L2-S1) Patients undergoing 3 or less levels of fusion Patients with neuromuscular disease Opioid intolerance or dependence Severe coexisting diseases ASA III

Ages Eligible for Study
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Minimum Age: 18 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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Accepts Healthy Volunteers

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Treatment
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Double


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Active Comparator: Study Group<br>Patients in this group will receive intrathecal morphine in addition to standard post-operative pain medications | Drug: Intrathecal Morphine Injection<br>* In addition to standard post-operative pain management, Intratechal morphine will be given to patients in this group.<br>* Other names: Subarachnoid injection of morphine;|
| Active Comparator: Control Group<br>Patients in this group will receive standard post-operative pain medications but will not receive intrathecal morphine | Drug: Pain Relieving<br>* Patient in this group will receive standard postoperative pain medications other than inthrathecal injection of morphine<br>* Other names: Standard Post-operative pain medications other than intrathecal morphine;|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Pain and Outcome Assessment | postoperative pain using Numerical pain score 0 no pain - 10 severe intolerable pain Oswesty Disability Index and Scoliosis Research Society Questionnaire | preoperative | 
| Pain and Outcome Assessment | postoperative pain using Numerical pain score 0 no pain - 10 severe intolerable pain | 6 week, post operative | 
| Pain and Outcome Assessment | postoperative pain using Numerical pain score 0 no pain - 10 severe intolerable pain | 3 months post operative | 
| Pain and Outcome Assessment | postoperative pain using Numerical pain score 0 no pain - 10 severe intolerable pain | 1 year post operative | 
| Pain and Outcome Assessment | postoperative pain using Numerical pain score 0 no pain - 10 severe intolerable pain | 2-year follow up | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Pain medications | Types of pain medication (Narcotics or Non-Narcotics) | Preoperative | 
| Pain medications | Types of pain medication (Narcotics or Non-Narcotics) | 6 weeks Post Operative | 
| Pain medications | Types of pain medication (Narcotics or Non-Narcotics) | 3 months Post Operative | 
| Pain medications | Types of pain medication (Narcotics or Non-Narcotics) | 1 year Post Operative | 
| Pain medications | Types of pain medication (Narcotics or Non-Narcotics) | 2 year Post Operative |