Mid- or High-flex Rods Versus Low-flex Rods of SpineShape System IV for Treatment of Degenerative Lumbar Spine Diseases

Trial statusRecruiting
Trial phaseNot applicable
Trial typeInterventional
Biological sexAll
Age18-99
SponsorSpineSave AG

About this trial

The purpose of this multi-center, randomized, clinical study is to show that the treatment of degenerative lumbar spine with high- or mid-flex rods is not inferior to the treatment with low-flex rods in terms of clinical and safety-related results.

The primary aim is to compare the reduction in back pain after the treatment with high- or mid-flex rods with that after treatment with low-flex rods. Secondary, the functionality after treatment with high- or mid-flex rods will be compared to that after treatment with low-flex rods.

Eligibility criteria

This trial does not accept healthy volunteers

Qualifiers

degenerative symptoms in 1 to 2 segments in the lumbar spine L1-S1

signed informed consent of participant

confirmation of the participant that the attendance of follow-up visits are intended

Body-Mass-Index < 32

Disqualifiers

missing bone structure, e.g. due to congenital anomalies or sever anatomical deformities that make anchoring of the implant impossible

damaged structural tissue, e.g. due to a bone fracture

application to the thoracic or cervical spine

pronounced idiopathic scoliosis

Trial design

Design model

Parallel

Treatments tested in this trial

  • SpineShape System IV straight rod elastic

    Device

    Implantation of SpineShape System IV straight rod elastic

  • SpineShape System IV straight rod medium

    Device

    Implantation of SpineShape System IV straight rod medium (mid-flex)

  • SpineShape System IV straight rod stiff

    Device

    Implantation of SpineShape System IV straight rod stiff (low-flex)

Treatment groups

126 Participants
are divided into 3 treatment groups
Group A: SpineShape System IV straight rod elasticExperimental treatment 1 intervention
Group B: SpineShape System IV straight rod mediumExperimental treatment 1 intervention
Group C: SpineShape System IV straight rod stiffActive comparator 1 intervention

Trial outcomes

Primary outcomes

1

Visual Analogue Scale (VAS) lower back pain

self reported back pain intensity using Visual Analogue Scale system. 0 "no pain" to 10 "worst possible pain"

Time frame
24 months post-implantation

Secondary outcomes

1

Visual Analogue Scale (VAS) leg pain

self reported leg pain intensity using Visual Analogue Scale system. 0 "no pain" to 10 "worst possible pain"

Time frame
3, 12, 24, 60 months post-implantation
2

walking duration

self reported walking duration in 5 categories (0-5 min, 6-15 min, 16-30 min, 31-60 min and \>60min)

Time frame
3, 12, 24, 60 months post-implantation
3

medication consumption

use of none, mild pain medication, non-steroidal anti-inflammatory drugs, opioids, and/or antidepressiva documented in patient's health records

Time frame
3, 12, 24, 60 months post-implantation
4

adverse events

adverse events related to the device (e.g. screw loosening, screw breakage, torn rod, slipped rod or too short rod)

Time frame
after 3, 12, 24, 60 months post-implantation

Other outcomes

Sponsors and contacts

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