Clinical Assessment of a Motorized Spinal Distraction Rod in the Severe to Early Scoliosis Child
NCT ID: NCT03330158
Last Updated: 2025-09-08
Study Results
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
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ACTIVE_NOT_RECRUITING
NA
5 participants
INTERVENTIONAL
2019-02-05
2025-12-31
Brief Summary
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The hypothesis of this project is that the new fully implantable motorized spinal distraction device may provide a correction of scoliosis and progressive elongation ensuring patient comfort and minimizing complications.
The ASTS (for Active Scoliosis Treatment System) growing rod is a new fully implantable motorized spinal distraction device which can ensure a correction of scoliosis and progressive elongation ensuring patient comfort and minimizing complications.
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Detailed Description
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The goal of treatment is to prevent further avoiding spinal fusion in a subject in growth. Surgery is indicated in case of failure or cons-indication of conservative treatment (corset or plaster). The principle is to position the posterior rods subcutaneous or in muscle attached to two ends of the deformation.
Intraoperative distraction allows correction of the deformity. A new distraction is performed every 6 months until skeletal maturity.
Considerable complication rates are reported (58%), mainly implant infections and disassembly, because of the need for multiple reoperations. Motorized implants can potentially avoid repeated interventions limiting complications.
Thus, the central hypothesis of this project is a new fully implantable motorized spinal distraction device may provide a correction of scoliosis and progressive elongation ensuring patient comfort and minimizing complications.
Conditions
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Study Design
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NA
SINGLE_GROUP
TREATMENT
NONE
Study Groups
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ASTS device
Implantation of device ASTS (for ACTIVE TREATMENT SCOLIOSIS SYSTEM ) in children between 4 and 10
ASTS
Implantation of a motorized spinal distraction rod
Interventions
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ASTS
Implantation of a motorized spinal distraction rod
Eligibility Criteria
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Inclusion Criteria
* Patient weight between 15kg at 50kg
* Introducing severe scoliosis (Cobb angle\> 40 °) with early onset
* Failed or cons-indication of conservative treatment (cast or brace)
* Agreement of parents or legal guardian (written agreement) and the patient (at least an oral agreement).
Exclusion Criteria
* Age less than 4 years or above 10 years
* Weight less 15kg and above 50 kg
4 Years
10 Years
ALL
No
Sponsors
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University Hospital, Toulouse
OTHER
Responsible Party
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Principal Investigators
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Franck Accadbled, MD PhD
Role: PRINCIPAL_INVESTIGATOR
University Hospital, Toulouse
Locations
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CHU de Toulouse
Toulouse, , France
Countries
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References
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Noordeen HM, Shah SA, Elsebaie HB, Garrido E, Farooq N, Al-Mukhtar M. In vivo distraction force and length measurements of growing rods: which factors influence the ability to lengthen? Spine (Phila Pa 1976). 2011 Dec 15;36(26):2299-303. doi: 10.1097/BRS.0b013e31821b8e16.
Varni JW, Seid M, Kurtin PS. PedsQL 4.0: reliability and validity of the Pediatric Quality of Life Inventory version 4.0 generic core scales in healthy and patient populations. Med Care. 2001 Aug;39(8):800-12. doi: 10.1097/00005650-200108000-00006.
Varni JW, Burwinkle TM, Seid M, Skarr D. The PedsQL 4.0 as a pediatric population health measure: feasibility, reliability, and validity. Ambul Pediatr. 2003 Nov-Dec;3(6):329-41. doi: 10.1367/1539-4409(2003)0032.0.co;2.
Akbarnia BA, Marks DS, Boachie-Adjei O, Thompson AG, Asher MA. Dual growing rod technique for the treatment of progressive early-onset scoliosis: a multicenter study. Spine (Phila Pa 1976). 2005 Sep 1;30(17 Suppl):S46-57. doi: 10.1097/01.brs.0000175190.08134.73.
Bess S, Akbarnia BA, Thompson GH, Sponseller PD, Shah SA, El Sebaie H, Boachie-Adjei O, Karlin LI, Canale S, Poe-Kochert C, Skaggs DL. Complications of growing-rod treatment for early-onset scoliosis: analysis of one hundred and forty patients. J Bone Joint Surg Am. 2010 Nov 3;92(15):2533-43. doi: 10.2106/JBJS.I.01471. Epub 2010 Oct 1.
Lucas G, Bollini G, Jouve JL, de Gauzy JS, Accadbled F, Lascombes P, Journeau P, Karger C, Mallet JF, Neagoe P, Cottalorda J, De Billy B, Langlais J, Herbaux B, Fron D, Violas P. Complications in pediatric spine surgery using the vertical expandable prosthetic titanium rib: the French experience. Spine (Phila Pa 1976). 2013 Dec 1;38(25):E1589-99. doi: 10.1097/BRS.0000000000000014.
Krieg AH, Speth BM, Foster BK. Leg lengthening with a motorized nail in adolescents : an alternative to external fixators? Clin Orthop Relat Res. 2008 Jan;466(1):189-97. doi: 10.1007/s11999-007-0040-3. Epub 2008 Jan 3.
Baumgart R. The reverse planning method for lengthening of the lower limb using a straight intramedullary nail with or without deformity correction. A new method. Oper Orthop Traumatol. 2009 Jun;21(2):221-33. doi: 10.1007/s00064-009-1709-4.
den Uil CA, Bezemer R, Miranda DR, Ince C, Lagrand WK, Hartman M, Bogers AJ, Spronk PE, Simoons ML. Intra-operative assessment of human pulmonary alveoli in vivo using Sidestream Dark Field imaging: a feasibility study. Med Sci Monit. 2009 Oct;15(10):MT137-141.
Kanter KR, Haggerty CM, Restrepo M, de Zelicourt DA, Rossignac J, Parks WJ, Yoganathan AP. Preliminary clinical experience with a bifurcated Y-graft Fontan procedure--a feasibility study. J Thorac Cardiovasc Surg. 2012 Aug;144(2):383-9. doi: 10.1016/j.jtcvs.2012.05.015. Epub 2012 Jun 13.
Kerimaa P, Ojala R, Sinikumpu JJ, Hyvonen P, Korhonen J, Markkanen P, Tervonen O, Sequeiros RB. MRI-guided percutaneous retrograde drilling of osteochondritis dissecans of the talus: a feasibility study. Eur Radiol. 2014 Jul;24(7):1572-6. doi: 10.1007/s00330-014-3161-6. Epub 2014 Apr 17.
Flynn JM, Emans JB, Smith JT, Betz RR, Deeney VF, Patel NM, Campbell RM. VEPTR to treat nonsyndromic congenital scoliosis: a multicenter, mid-term follow-up study. J Pediatr Orthop. 2013 Oct-Nov;33(7):679-84. doi: 10.1097/BPO.0b013e31829d55a2.
Other Identifiers
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RC31/15/7851
Identifier Type: -
Identifier Source: org_study_id
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