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NCT03689400

Changes of Pain and Functional Parameters in Back Pain Patients Over Time

Completed Results posted Last updated 17 December 2025
What this trial tests

trial in Changes Over Time in Pain and Functional Parameters in 19 participants. Completed in 31 January 2020.

Timeline
11 October 2018
Primary endpoint
6 December 2019
31 January 2020

Quick facts

Lead sponsorUniversity of Applied Sciences and Arts of Southern Switzerland
StatusCompleted
Study typeOBSERVATIONAL
Enrollment19
Start date11 October 2018
Primary completion6 December 2019
Estimated completion31 January 2020
Sites1 location across Switzerland

Conditions studied

Sponsor

University of Applied Sciences and Arts of Southern Switzerland

Who can join

Eligibility, any sex, with Changes Over Time in Pain and Functional Parameters. Patients with the condition only — healthy volunteers not accepted.

Results — posted to ClinicalTrials.gov

Per-arm endpoint measurements with 95% confidence intervals where reported. Source: trial results section.

Changes in Visual Analog Scale Pain Scores Primary · Baseline, 6 weeks, 6 months

Changes in pain were assessed using a unidimensional 10-cm Visual Analogue Scale. The scale ranged from one endpoint depicting a happy face, indicating "no pain," to the other endpoint depicting a sad face, indicating "worst possible pain." The distance in centimeters from the low end (0) of the VAS to the patient's mark was used as a numerical measure of pain severity. The lowest score was 0, indicating no pain, the maximum score 10, indicating worst possible pain. Higher scores indicate more severe pain.

Baseline
GroupValue95% CI
Patients With Lumbar Disc Herniation Associated With Radiculopathy3.6± 3.0
6 weeks follow-up
GroupValue95% CI
Patients With Lumbar Disc Herniation Associated With Radiculopathy1.2± 1.6
6 months follow-up
GroupValue95% CI
Patients With Lumbar Disc Herniation Associated With Radiculopathy0.5± 1.3
Changes in Visual Analog Scale Ratings of Numbness Primary · Baseline, 6 weeks, 6 months

Changes in pain were assessed using a unidimensional 10-cm Visual Analogue Scale. The scale ranged from one endpoint depicting a happy face, indicating "no numbness," to the other endpoint depicting a sad face, indicating "worst possible numbness." The distance in centimeters from the low end of the VAS to the patient's mark was used as a numerical measure of pain severity. The lowest score was 0, indicating no numbness, the maximum score 10, indicating worst possible numbness. Higher scores indicate more severe numbness.

Baseline
GroupValue95% CI
Patients With Lumbar Disc Herniation Associated With Radiculopathy2.2± 2.3
6 weeks follow-up
GroupValue95% CI
Patients With Lumbar Disc Herniation Associated With Radiculopathy0.8± 1.8
6 months follow-up
GroupValue95% CI
Patients With Lumbar Disc Herniation Associated With Radiculopathy0.3± 1.3
Changes in Visual Analog Scale Ratings of Paresthesia Primary · Baseline, 6 weeks, 6 months

Changes in pain were assessed using a unidimensional 10-cm Visual Analogue Scale. The scale ranged from one endpoint depicting a happy face, indicating "no paresthesia" to the other endpoint depicting a sad face, indicating "worst possible paresthesia." The distance in centimeters from the low end of the VAS to the patient's mark was used as a numerical measure of pain severity. The lowest score was 0, indicating no paresthesia, the maximum score 10, indicating worst possible paresthesia. Higher scores indicate more severe numbness.

Baseline
GroupValue95% CI
Patients With Lumbar Disc Herniation Associated With Radiculopathy3.3± 2.7
6 weeks follow-up
GroupValue95% CI
Patients With Lumbar Disc Herniation Associated With Radiculopathy0.9± 1.5
6 months follow-up
GroupValue95% CI
Patients With Lumbar Disc Herniation Associated With Radiculopathy0.3± 1.3
Changes in Anterior Flexion Measured in Centimeters Primary · Baseline, 6 weeks, 6 months

The fingertip-to-floor (FTF) test (cm) was used to assess the lumbar maximal anterior flexion. Patients performed maximal flexion up to the pain threshold, keeping the elbows, fingers, and knees straight and the heels together.

Baseline
GroupValue95% CI
Patients With Lumbar Disc Herniation Associated With Radiculopathy21.7± 16.3
6 weeks follow-up
GroupValue95% CI
Patients With Lumbar Disc Herniation Associated With Radiculopathy17.8± 14.9
6 months follow-up
GroupValue95% CI
Patients With Lumbar Disc Herniation Associated With Radiculopathy11.8± 10.4
Changes in Back Extension Measured in Degrees Primary · Baseline, 6 weeks, 6 months

Extension was measured using a baseline bubble inclinometer. Patients performed maximal extension up to the pain threshold, keeping the elbows, fingers, and knees straight and the heels together.

Baseline
GroupValue95% CI
Patients With Lumbar Disc Herniation Associated With Radiculopathy18.7± 8.0
6 weeks follow-up
GroupValue95% CI
Patients With Lumbar Disc Herniation Associated With Radiculopathy21.8± 5.8
6 months follow-up
GroupValue95% CI
Patients With Lumbar Disc Herniation Associated With Radiculopathy27.9± 10.0
Changes in Lateral Flexion Measured in Centimeters Primary · Baseline, 6 weeks, 6 months

The fingertip-to-floor (FTF) test (cm) was used to assess the lumbar maximal lateral flexion. Patients performed maximal flexion up to the pain threshold, keeping the elbows, fingers, and knees straight and the heels together. The contralateral hip remained in contact with the treatment table during lateral flexion.

right side: Basline
GroupValue95% CI
Patients With Lumbar Disc Herniation Associated With Radiculopathy51.3± 4.4
right side: 6 weeks follow-up
GroupValue95% CI
Patients With Lumbar Disc Herniation Associated With Radiculopathy49.9± 4.0
right side: 6 months follow-up
GroupValue95% CI
Patients With Lumbar Disc Herniation Associated With Radiculopathy49.2± 4.4
Left side: Baseline
GroupValue95% CI
Patients With Lumbar Disc Herniation Associated With Radiculopathy50.2± 5.4
Left Side: 6 weeks follow-up
GroupValue95% CI
Patients With Lumbar Disc Herniation Associated With Radiculopathy49.4± 3.5
Left side: 6 months follow-up
GroupValue95% CI
Patients With Lumbar Disc Herniation Associated With Radiculopathy48.6± 3.7
Changes in the Maximal Isometric Strength in Newton Primary · Baseline, 6 weeks, 6 months

Maximal isometric strength was tested using the NOD hand-held dynamometer. An active strength test of the primary innervated muscle was performed for 3 s using a standardized procedure adapted from Mentiplay et al. The patient was instructed to press against the examiner's hand-and thus the hand-held dynamometer-as hard and as long as possible. The dynamometer recorded the strength and duration of the isometric contraction both graphically and numerically. The tested muscles included: L3: M. quadriceps femoris; L4: M. quadriceps femoris; M. tibialis anterior (TA); L5: M. TA; M. extensor hall

M. tibialis anterior: Baseline
GroupValue95% CI
Patients With Lumbar Disc Herniation Associated With Radiculopathy91.5± 47.6
M. tibialis anterior: 6 weeks follow-up
GroupValue95% CI
Patients With Lumbar Disc Herniation Associated With Radiculopathy114.7± 71.8
M. tibialis anterior: 6 months follow-up
GroupValue95% CI
Patients With Lumbar Disc Herniation Associated With Radiculopathy142.0± 65.9
M. extensor hallucis longus: Baseline
GroupValue95% CI
Patients With Lumbar Disc Herniation Associated With Radiculopathy22.8± 9.0
M. extensor hallucis longus: 6 weeks follow-up
GroupValue95% CI
Patients With Lumbar Disc Herniation Associated With Radiculopathy34.3± 19.3
M. extensor hallucis longus: 6 months follow-up
GroupValue95% CI
Patients With Lumbar Disc Herniation Associated With Radiculopathy39.5± 12.6
Changes in Nerve Tension Assessed by the Straight Leg Raising Test, Measured in Degrees Primary · Baseline, 6 weeks, 6 months

Nerve tension of the affected spinal nerve root was assessed using the straight leg raise pain provocation test. A baseline bubble inclinometer was placed directly above the patella to measure the angle in degrees between the examination table and the elevated limb.

Baseline
GroupValue95% CI
Patients With Lumbar Disc Herniation Associated With Radiculopathy46.3± 23.4
6 weeks follow-up
GroupValue95% CI
Patients With Lumbar Disc Herniation Associated With Radiculopathy56.8± 17.0
6 months follow-up
GroupValue95% CI
Patients With Lumbar Disc Herniation Associated With Radiculopathy66.3± 9.0
Changes in Quality of Life Assessed by the Physical Component Summary of the 36-Item Short Form Health Survey Primary · Baseline, 6 weeks, 6 months

General health was evaluated using the German version 2.0 of the 36-item Short Form Health Survey (SF-36). The PCS score aggregates four subscales-Physical Functioning, Role Physical, Bodily Pain, and General Health-into a standardized score ranging from 0 to 100, with higher scores reflecting better physical health.

Baseline
GroupValue95% CI
Patients With Lumbar Disc Herniation Associated With Radiculopathy35.2± 6.6
6 weeks follow-up
GroupValue95% CI
Patients With Lumbar Disc Herniation Associated With Radiculopathy44.0± 8.2
6 months follow-up
GroupValue95% CI
Patients With Lumbar Disc Herniation Associated With Radiculopathy51.7± 7.5
Changes in Quality of Life Assessed by the Mental Component Summary of the 36-Item Short Form Health Survey Primary · Baseline, 6 weeks, 6 months

General health was evaluated using the German version 2.0 of the 36-item Short Form Health Survey (SF-36). The MCS score aggregates four subscales-Vitality, Social Functioning, Role Emotional, and Mental Health-into a standardized score ranging from 0 to 100, with higher scores reflecting better mental health.

Baseline
GroupValue95% CI
Patients With Lumbar Disc Herniation Associated With Radiculopathy44.2± 15.6
6 weeks follow-up
GroupValue95% CI
Patients With Lumbar Disc Herniation Associated With Radiculopathy53.8± 7.5
6 month follow-up
GroupValue95% CI
Patients With Lumbar Disc Herniation Associated With Radiculopathy55.6± 4.3
Changes in Physical Activity Assessed Using the International Physical Activity Questionnairee Primary · Baseline, 6 weeks, 6 months

Physical activity was assessed using the self-administered short German version of the International Physical Activity Questionnaire (IPAQ) with a "last 7 days recall". Data were processed and analyzed according to the official IPAQ scoring protocol and reported in metabolic equivalents of task minutes per week

Baseline
GroupValue95% CI
Patients With Lumbar Disc Herniation Associated With Radiculopathy2140.9± 2067.6
6 weeks follow-up
GroupValue95% CI
Patients With Lumbar Disc Herniation Associated With Radiculopathy2961.2± 2460.1
6 months follow-up
GroupValue95% CI
Patients With Lumbar Disc Herniation Associated With Radiculopathy3718.0± 2846.5
Changes in Disability According to the Oswestry Disability Index Primary · Baseline, 6 weeks, 6 months

Disability was assessed using the German version of the Oswestry Disability Index. The ODI consists of 10 sections, each scored from 0 to 5. Scores are summed and expressed as a percentage ranging from 0 to 100, with higher scores indicating greater disability.

Baseline
GroupValue95% CI
Patients With Lumbar Disc Herniation Associated With Radiculopathy37.2± 20.1
6 weeks follow-up
GroupValue95% CI
Patients With Lumbar Disc Herniation Associated With Radiculopathy16.7± 11.9
6 months follow-up
GroupValue95% CI
Patients With Lumbar Disc Herniation Associated With Radiculopathy8.5± 12.0

Sponsor's own description

Back pain affects patients' daily life. Patients can suffer from various symptoms which appear intermittent or permanent; pain, sensory malfunction, reduction of muscular strength and coordination. Therefore, patients are impaired in participation and activity. Physiotherapy is recommended to improve those symptoms and to positively affect the cause of the problem. However, some patients do not benefit from physiotherapeutic treatment and require a surgery. The investigators intend to attend patients suffering from back pain and to document the changes of pain and functional parameters over a period of 6 months. The investigators include pre-operative, post-operative or non-operated patients which allows to discuss the different treatment options and its effects.

Publications & conference data

No peer-reviewed publications indexed yet for this trial. Completed trials usually publish results within 12-18 months.

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