Clinical Outcomes of Prone and Supine Lumbar Traction Matched to Mechanical Bias in Flexion and Extension Subgroups With Lumbosacral Radiculopathy

Clinical Outcomes of Prone and Supine Lumbar Traction Matched to Mechanical Bias in Flexion and Extension Subgroups With Lumbosacral Radiculopathy.

Aim of the study is to identify specific patient subgroups that respond optimally to prone or supine traction based on mechanical diagnosis.

Study Overview

• Status: Not yet recruiting
• Conditions: Lumbosacral Radiculopathy
• Intervention / Treatment: Other: group A; Other: Group B; Other: Group C; Other: Group D

• Study Type: Interventional
• Enrollment (Estimated): 28
• Phase: Not Applicable

Contacts and Locations

• Study Contact: Name: Atef abdulalim nadier, Assistant professor; Phone Number: +201003867064; Email: a.nadier@ammanu.edu.jo

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: Adult
• Accepts Healthy Volunteers: No

Description

Inclusion Criteria:

• Acute and subacute lumbosacral disc herniation with radiculopathy.
• Positive Straight leg raising test or Slump test.

Exclusion Criteria:

• Spondylolisthesis, prior spinal surgery, "Red Flags" (Cauda Equina, malignancy), or a non-mechanical response to repeated movements and patients with LBP without radiculopathy.

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Treatment
• Allocation: Randomized
• Interventional Model: Parallel Assignment
• Masking: Single

Number of Arms

4

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Experimental: A) Extension bias, prone traction; Mechanical intermittent traction will done for 15 minutes with patient in prone position, after release the patient let wrest for 2 minutes then asked to walking for 1 minutes without immediate sitting post traction period. Prone on elbow press up exercise . Infrared radiation on back before traction	Other: group A; Press up on elbow exercise traction from prone.
Experimental: B) Extension bias, supine traction; Mechanical intermittent traction will done for 15 minutes with patient in supine position, after release the patient let wrest for 2 minutes then asked to walking for 1 minutes without immediate sitting post traction period. Infrared on back before the traction. Press up on elbow exercise .	Other: Group B; Press up on elbow exercise. traction from supine
Experimental: C) Flexion bias, supine traction; Mechanical intermittent traction will done for 15 minutes with patient in supine position(matches flexion bias), after release the patient let wrest for 2 minutes then asked to walking for 1 minutes without immediate sitting post traction period. Infrared on the back before the traction for 10 minutes. Knee to chest exercise for 2 minutes before the session .	Other: Group C; Traction from supine with flexion bias exercise knee to chest exercise for 2 minutes
Experimental: D) Flexion bias, prone traction; Mechanical intermittent traction will done for 15 minutes with patient in prone position(mismatches flexion bias), after release the patient let wrest for 2 minutes then asked to walking for 1 minutes without immediate sitting post traction period. Infrared on the back before the traction for 10 minutes. Knee to chest exercise for 2 minutes before the session .	Other: Group D; Traction from prone with flexion bias exercise knee to chest exercise for 2 minutes

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Numerical pain scale (NPRS)	Pain (lower limb radiating pain)	Pain intensity was assessed at baseline (during the initial assessment) and again after completion of the 12th treatment session (one-month follow-up)
Oswestry back scale (ODI)	Functional questionnaire for back disability	Patients completed the ODI questionnaire at baseline during their initial clinical evaluation. A subsequent assessment was conducted upon completion of the 12-session intervention protocol (representing the one-month follow-up)
Hip flexion Angle	Hip flexion Angle during SLR test is also used to measure neural tension improvements for extension bias groups (by digital inclinometer)	Hip flexion Angle was assessed at baseline (during the initial assessment) and again after completion of the 12th treatment session (one-month follow-up)
Knee extension angle	Knee extension angle with active knee extension during slump test was used for flexion bias groups (to measure how many degrees the knee is away from full extension when the leg pain starts).	Knee extension angle was assessed at baseline (during the initial assessment) and again after completion of the 12th treatment session (one-month follow-up)

Collaborators and Investigators

• Sponsor: Al-Ahliyya Amman University

Study record dates

Study Major Dates

• Study Start (Estimated): September 10, 2026
• Primary Completion (Estimated): October 26, 2026
• Study Completion (Estimated): February 28, 2027

Study Registration Dates

• First Submitted: January 6, 2026
• First Submitted That Met QC Criteria: August 24, 2026
• First Posted (Actual): August 26, 2026

Study Record Updates

• Last Update Posted (Actual): August 26, 2026
• Last Update Submitted That Met QC Criteria: August 24, 2026
• Last Verified: August 1, 2026

More Information

Terms related to this study

• Other Study ID Numbers: 1985

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: NO

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No