The Effectiveness of Lower Limb Neurodynamic Techniques on Pain and Disability in Subjects With Lower Limb Radicular Pain
Low back-related leg pain (LBRLP), although less prevalent than low back pain itself, is associated with higher economic and social burden, and consists in a predictor of chronicity and disability among subjects with low back pain. Numerous approaches are proposed for its management; however, evidence regarding the best therapeutic approach is lacking.
Neurodynamic techniques are proposed to be effective to manage nerve trunk pain. In light of this, many techniques are described for the management of the dysfunctions of the sciatic nerve.
Thus, this study aims to verify, through a randomized sham-controlled trial, the effectiveness of a single application of neurodynamic techniques on pain and disability in individuals with LBRLP.
|Study Design:||Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Double Blind (Subject, Outcomes Assessor)
Primary Purpose: Treatment
|Official Title:||Immediate Effects of Neurodynamic Techniques on Pain and Pressure Pain Thresholds in Subjects With Back-related Leg Pain: a Randomized Sham-controlled Trial|
- Pain (numeric pain rating scale) [ Time Frame: Immediate ] [ Designated as safety issue: No ]Immediately after the intervention, the subjects will be asked about their post-treatment pain scores in the symptomatic leg and in the back, which will be measured with the numeric pain rating scale (NPRS). Pain will be assessed with individuals at rest
- Pain (Numeric Pain Rating Scale) [ Time Frame: 1 week ] [ Designated as safety issue: No ]1 week after the intervention, the subjects will be asked about their current pain scores in the symptomatic leg and in the back, which will be measured with the numeric pain rating scale (NPRS). Pain will be assessed with individuals at rest.
- Straight leg raise range of motion [ Time Frame: Immediate ] [ Designated as safety issue: No ]With subjects lying in prone, an inclinometer will be positioned in the symptomatic (and therefore the treated) leg immediately after the intervention. Then, they will be instructed to raise their leg straightly. The mean range of motion (ROM) of 3 measures will be recorded.
- Oswestry Disability Index [ Time Frame: 1 week ] [ Designated as safety issue: No ]One week after the intervention, individuals will be asked to complete the Oswestry Disability Index (ODI), which is a self-reported questionnaire that addresses functional restrictions in subjects with low back pain. This questionnaire is widely used, with good psychometric properties and excellent responsiveness and is also used in individuals with back-related leg pain.
|Study Start Date:||August 2014|
|Estimated Study Completion Date:||March 2016|
|Estimated Primary Completion Date:||January 2016 (Final data collection date for primary outcome measure)|
Experimental: Neurodynamic group
In this arm, the individuals allocated will receive neurodynamic techniques, applied according to the results of the physical examination
The joints are positioned in such a way that allows the therapist to promote stress on nerve tissue. The mechanical stress imposed to this tissue is capable of elicit physiological responses that generate hypoalgesic effects.
|Sham Comparator: sham-neurodynamic||
The individuals allocated to this intervention will receive sham-neurodynamic techniques; i.e, techniques that only simulate a neurodynamic approach without necessarily generating treatment effects
|Contact: Giovanni E. Ferreira, PT||+5193073774||giovannieferreira@Hotmail.com|
|Federal University of Health Sciences of Porto Alegre||Not yet recruiting|
|Porto Alegre, Rio Grande do sul, Brazil, 90050-170|
|Contact: Giovanni E. Ferreira, PT +5193073774 giovannieferreira@Hotmail.com|
|Contact: Marcelo F. Silva, PhD|