Post-market Clinical Follow-up Study of NEMOST V2
Trial statusRecruiting
Trial phaseNot applicable
Trial typeInterventional
Biological sexAll
Age5-17
SponsorEUROS
About this trial
The NEMOST spinal implant is a growth domino intended for the surgical treatment of progressive scoliosis in children.
As part of post-market surveillance, EUROS is conducting a retrospective and prospective study to collect clinical and radiological data on the NEMOST growth domino.
Retrospective and prospective multicenter post-market surveillance clinical study.
This study is interventional, non-randomized, and uncontrolled. The primary objective of this clinical study is to monitor complications related to the NEMOST growth domino during a 5-year postoperative follow-up in patients treated for progressive scoliosis in children.
The secondary objective of this clinical study is to monitor the performance of the NEMOST growth domino during a 5-year postoperative follow-up in patients treated for progressive scoliosis in children.
The study will include 140 patients.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
Idiopathic, congenital, neuromuscular, or syndromic scoliosis : Progressive spinal deformity not managed by orthopedic treatment, and requiring primary surgical intervention.
The patient, as well as their parents or legal guardians, are informed of the participation in the study.
Patients aged from 5 to 17 yeas old, excepted the one who still have a potential for growth
Disqualifiers
signs of local inflammation;
acute or chronic, local or systemic infections ;
non-reducible scoliosis ;
pathological obesity ;
Trial design
Design model
Single group
Treatments tested in this trial
NEMOST V2 growing domino
DeviceThe NEMOST spinal implant is a growth domino intended for the surgical treatment of progressive scoliosis in children.
Treatment groups
140 Participants
are divided into 1 treatment groupGroup A: NEMOST V2Experimental treatment 1 intervention
Trial outcomes
Primary outcomes
1
Complication rate
The safety of the device will be studied by monitoring all complications, reinterventions and revisions.
Time frame
5 yearsSecondary outcomes
1
Cobb angle (°)
Comparison between preoperative measures, immediate postoperative measures and each visit measures. Measured on seated or standing anteroposterior and lateral X-ray images by identifying the most tilted vertebrae at the top and bottom of the spinal curve, drawing lines along their endplates, and calculating the angle formed by the intersection of perpendiculars to these lines. Normal value for Cobb angle is \<10° for no or benign scoliosis, medium scoliosis is defined between 15 and 35°, important scoliosis is defined as between 35 and 60° and very important scoliosis corresponds to angle \> 65°. The Cobb angle correction, used to compare pre and postoperative angle is defined as 100\*(preoperative value - postoperative value) / postoperative value.
Time frame
5 years2
Early-Onset Scoliosis questionnaire 24 items (EOSQ-24)
Considering clinical evaluation, the EOSQ-24 auto questionnaire addressed to patients' parents was selected. The 24-Item Early-onset Scoliosis Questionnaire (EOSQ-24) is a locally validated measurement tool to evaluate the overall impact of early onset scoliosis on patients' physical, psychological, and socio-economic well-being. Clinical results are assessed thanks to the EOSQ-24 quality of life questionnaire. It is divided in 11 themes, for which a score is calculated over 100. Each item is composed of 1 to 5 questions rated from 1 to 5, 5 being the best score. These scores will be between 0 to 100. Comparison between preoperative measures, immediate postoperative measures and each visit measures.
Time frame
5 years3
Pelvic obliquity (°)
Measured on seated or standing anteroposterior and lateral X-ray images by drawing a line between the iliac crests (or the inferior aspects of the sacroiliac joints) and calculating the angle between this line and a horizontal reference line. Normal value is 0°. Comparison between preoperative measures, immediate postoperative measures and each visit measures.
Time frame
5 years4
Thoracic kyphosis (°)
Measured on seated or standing anteroposterior and lateral X-ray images by calculating the Cobb angle between the superior endplate of the upper thoracic vertebra and the inferior endplate of the lower thoracic vertebra defining the kyphotic curve (commonly T4-T12). Comparison between preoperative measures, immediate postoperative measures and each visit measures.
Time frame
5 years Source ClinicalTrials.gov