Clinical trial NCT02226159: Surgery Prevention by Transforaminal Injection of Epidural Steroids for Cervical Radicular Pain
Official title: Surgery Prevention by Transforaminal Injection of Epidural Steroids for Cervical Radicular Pain (SPIES): a Randomized, Controlled Trial
Study type: INTERVENTIONAL
Overall status: SUSPENDED
Phase: PHASE4
Conditions: Pain, Radiating
Keywords: cervical
radicular pain
transforaminal epidural steroid injections
Lead sponsor: OrthoCarolina Research Institute, Inc.
Sponsor class: OTHER
Collaborators: name: Charlotte Surgery Center
First posted: 2014-08-27
Enrollment: 65
Sex: ALL
Minimum age (years): 18
Standard ages: ADULT
OLDER_ADULT
Accepts healthy volunteers: no
Allocation: RANDOMIZED
Intervention model: PARALLEL
Primary purpose: TREATMENT

Brief summary: Cervical radicular pain is a common cause of disability and pain in the upper extremity and neck with an annual incidence of 83.2/100,000 (1). The initial treatment is conservative and includes relative rest, use of anti-inflammatory and analgesic medication, as well as physical therapy and home exercise. For patients who have persistent and significant symptoms, interventional pain management and surgical management are considered. Cervical epidural injections are the mainstay of the interventional, non-surgical modalities. They can be considered to provide short and long-term relief when disc herniation, foraminal stenosis or central canal stenosis pathology is identified. We are not aware of any published prospective, randomized, controlled, double-blinded studies demonstrating the efficacy of cervical transforaminal epidural steroid injections. However, the North American Spine Society (NASS) Review and Recommendation Statement states that based on the literature and expert opinion, a minimum of one or two cervical epidural steroid injections would be very appropriate in the treatment of a specific episode of cervical radicular pain.

The purpose of this study is to determine the effectiveness of cervical transforaminal epidural steroid injections in decreasing the need for an operation in patients with cervical radicular pain, otherwise considered to be operative candidates.

Detailed description: Cervical radicular pain is a common cause of disability and pain in the upper extremity and neck with an annual incidence of 83.2/100,000 (1). The initial treatment is conservative and includes relative rest, use of anti-inflammatory and analgesic medication, as well as physical therapy and home exercise. For patients who have persistent and significant symptoms, interventional pain management and surgical management are considered. Cervical epidural injections are the mainstay of the interventional, non-surgical modalities. They can be considered to provide short and long-term relief when disc herniation, foraminal stenosis or central canal stenosis pathology is identified.

Cervical epidural injections can be performed by two different approaches, transforaminal and interlaminar. Transforaminal epidural injections allow delivery of medication to the ventral epidural space, while the interlaminar approach reaches the ventral epidural space in only 28% of injections (2-4). The results of cervical epidural injections remain controversial and their efficacy in decreasing the need for surgery in patients who would otherwise be operative candidates has not been thoroughly investigated. Studies have been limited by small sample sizes, lack of control groups, and lack of randomization. Kolstad et al reported that 23% (5/21) of patients waiting for cervical disc surgery cancelled surgery when assessed at four months after having a series of two cervical epidural injections (6). Lin et al reported that 63% (44/70) of patients who were deemed to be surgical candidates were able to avoid surgery with an average of 13-month follow up (7). Lee et al reported that over 80% of 98 patients evaluated with cervical radiculopathy were able to avoid surgery with a 2-year follow-up (8). Anderberg et al reported that there was no short-term difference in symptoms of cervical radiculopathy between patients who received transforaminal injections of steroid with local anesthetic versus saline with local anesthetic. However, this study did not evaluate whether the injections were successful in the patients avoiding surgery (11).

In terms of lumbar transforaminal epidural injections, Riew et al demonstrated that steroid injections obviated the need for surgery in patients with lumbar radiculopathy. Moreover, Reiw et al showed that steroid combined with local anesthetic was more effective than local anesthetic alone in a prospective, randomized, controlled, double-blinded study (9). Riew et al later studied the efficacy of cervical transforaminal epidural injections in the same fashion, but the findings were not statistically significant (p\<0.35) and not published (10).

We are not aware of any published prospective, randomized, controlled, double-blinded studies demonstrating the efficacy of cervical transforaminal epidural steroid injections. However, the North American Spine Society (NASS) Review and Recommendation Statement states that based on the literature and expert opinion, a minimum of one or two cervical epidural steroid injections would be very appropriate in the treatment of a specific episode of cervical radicular pain. This literature also suggests that a maximum of four injections can be used within six months, assuming there was a positive response and improvement seen with the previous injections.

Eligibility criteria: Inclusion Criteria:

* Subjects who have cervical radicular pain without significant neurologic deficit (neurologic deficit is defined as manual muscle testing less than 3/5), MRI/CT findings of neural compression (neural compression is defined as disc herniation or central or foraminal spinal stenosis),
* Failed 6 weeks of conservative treatment (conservative treatment is defined as relative rest, home exercise, physical therapy, and use of anti-inflammatory and/or analgesic medications),
* Deemed to be good operative candidates by spine surgeons (patients with MRI/CT findings of neural compression with concordant symptoms) and had agreed to possible operative intervention

Exclusion Criteria:

* History of

  1. acute trauma,
  2. diabetes (type I or type II),
  3. active infection
* Active progressive neurological deficit (neurologic is deficit defined as manual muscle testing less than 3/5),
* Medical condition that may affect the cervical spine neurological exam and/or pain assessment (e.g. peripheral neuropathy),
* Bilateral disease,
* More than one cervical level requiring injection,
* Bleeding disorders or other medical contraindications to the injection procedure,
* Absence of substantial radicular pain (radicular pain is defined as arm pain greater than neck pain),
* Involvement in workers' compensation claim, or any litigation related to neck injury.
* Patients who are pregnant, or who plan to become pregnant in the next 12 months

Primary outcomes:
measure: Avoidance of Neck Surgery
timeFrame: 12 months after the first injection
Secondary outcomes:
measure: Disability
timeFrame: 4 weeks
measure: Numeric Pain Scre
timeFrame: 4 weeks
measure: Patient Satisfaction
timeFrame: 4 weeks
measure: Disability
timeFrame: 12 weeks
measure: Disability
timeFrame: 6 Months
measure: Disability
timeFrame: 12 Months
measure: Numeric Pain Score
timeFrame: 12 weeks
measure: Numeric Pain Score
timeFrame: 6 Months
measure: Numeric Pain Score
timeFrame: 12 Months
measure: Patient Satisfaction
timeFrame: 12 weeks
measure: Patient Satisfaction
timeFrame: 6 months
measure: Patient Satisfaction
timeFrame: 12 months
Other outcomes:
Locations:
city: Charlotte
country: United States
facility: OrthoCarolina
state: North Carolina
Study officials:
affiliation: OrthoCarolina Research Institute, Inc.
name: Sam Bhagia, MD
role: PRINCIPAL_INVESTIGATOR
References:
citation: Radhakrishnan K, Litchy WJ, O'Fallon WM, Kurland LT. Epidemiology of cervical radiculopathy. A population-based study from Rochester, Minnesota, 1976 through 1990. Brain. 1994 Apr;117 ( Pt 2):325-35. doi: 10.1093/brain/117.2.325.
citation: Stojanovic MP, Vu TN, Caneris O, Slezak J, Cohen SP, Sang CN. The role of fluoroscopy in cervical epidural steroid injections: an analysis of contrast dispersal patterns. Spine (Phila Pa 1976). 2002 Mar 1;27(5):509-14. doi: 10.1097/00007632-200203010-00011.
citation: Strub WM, Brown TA, Ying J, Hoffmann M, Ernst RJ, Bulas RV. Translaminar cervical epidural steroid injection: short-term results and factors influencing outcome. J Vasc Interv Radiol. 2007 Sep;18(9):1151-5. doi: 10.1016/j.jvir.2007.06.011.
citation: Lieberman R, Dreyfuss P, Baker R. Fluoroscopically guided interlaminar cervical epidural injections. Arch Phys Med Rehabil. 2003 Oct;84(10):1568-9; author reply 1569. doi: 10.1016/j.apmr.2003.08.072. No abstract available.
citation: Manchikanti L, Falco FJ, Diwan S, Hirsch JA, Smith HS. Cervical radicular pain: the role of interlaminar and transforaminal epidural injections. Curr Pain Headache Rep. 2014 Jan;18(1):389. doi: 10.1007/s11916-013-0389-9.
citation: Kolstad F, Leivseth G, Nygaard OP. Transforaminal steroid injections in the treatment of cervical radiculopathy. A prospective outcome study. Acta Neurochir (Wien). 2005 Oct;147(10):1065-70; discussion 1070. doi: 10.1007/s00701-005-0542-2. Epub 2005 Jun 9.
citation: Lin EL, Lieu V, Halevi L, Shamie AN, Wang JC. Cervical epidural steroid injections for symptomatic disc herniations. J Spinal Disord Tech. 2006 May;19(3):183-6. doi: 10.1097/01.bsd.0000190558.13248.e1.
citation: Lee SH, Kim KT, Kim DH, Lee BJ, Son ES, Kwack YH. Clinical outcomes of cervical radiculopathy following epidural steroid injection: a prospective study with follow-up for more than 2 years. Spine (Phila Pa 1976). 2012 May 20;37(12):1041-7. doi: 10.1097/BRS.0b013e31823b4d1f.
citation: Riew KD, Yin Y, Gilula L, Bridwell KH, Lenke LG, Lauryssen C, Goette K. The effect of nerve-root injections on the need for operative treatment of lumbar radicular pain. A prospective, randomized, controlled, double-blind study. J Bone Joint Surg Am. 2000 Nov;82(11):1589-93. doi: 10.2106/00004623-200011000-00012.
citation: Anderberg L, Annertz M, Persson L, Brandt L, Saveland H. Transforaminal steroid injections for the treatment of cervical radiculopathy: a prospective and randomised study. Eur Spine J. 2007 Mar;16(3):321-8. doi: 10.1007/s00586-006-0142-8. Epub 2006 Jul 12.