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 volunteersQualifiers
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
Parallel
Treatments tested in this trial
SpineShape System IV straight rod elastic
DeviceImplantation of SpineShape System IV straight rod elastic
SpineShape System IV straight rod medium
DeviceImplantation of SpineShape System IV straight rod medium (mid-flex)
SpineShape System IV straight rod stiff
DeviceImplantation of SpineShape System IV straight rod stiff (low-flex)
Treatment groups
Trial outcomes
Primary outcomes
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"
Secondary outcomes
Visual Analogue Scale (VAS) leg pain
self reported leg pain intensity using Visual Analogue Scale system. 0 "no pain" to 10 "worst possible pain"
walking duration
self reported walking duration in 5 categories (0-5 min, 6-15 min, 16-30 min, 31-60 min and \>60min)
medication consumption
use of none, mild pain medication, non-steroidal anti-inflammatory drugs, opioids, and/or antidepressiva documented in patient's health records
adverse events
adverse events related to the device (e.g. screw loosening, screw breakage, torn rod, slipped rod or too short rod)
Sponsors and contacts
Click on the lead sponsor to view all of their trials.