Modified Jackson transsacral rod fixation with true-CT navigation for pediatric high-grade dysplastic spondylolisthesis - 08/11/26
, Lou Davaine, Ines Moser, Clélia Thouement, Reda Kabbaj, Raphael VialleAbstract |
Background |
Modified Jackson transsacral rod fixation enables posterior-only reduction and fusion of pediatric high-grade dysplastic spondylolisthesis (PHGDS) but remains technically demanding, particularly during transsacral rod advancement through S2 in distorted sacral anatomy. After an experience of 58 fluoroscopy-guided cases, intraoperative True-CT navigation was introduced to improve control and reproducibility of this critical step.
Methods |
A fully navigated workflow using AIRO True-CT imaging was developed for pedicle screw placement, S1 screw insertion, interbody cage positioning, and transsacral rod advancement in three consecutive pediatric patients.
Results |
Navigation improved reproducibility of all implant-placement steps. Compared with historical institutional experience, operative time, blood loss, and fluoroscopy were reduced. Correction of lumbosacral kyphosis was achieved in all patients, without implant malposition or navigation-related complications.
Conclusions |
Full True-CT navigation represents the latest technical evolution of posterior-only strategy for PHSDS. This approach may improves safety, reproducibility, and operative efficiency while minimizing intraoperative radiation exposure to surgical staff.
Level of evidence |
IV.
Le texte complet de cet article est disponible en PDF.Keywords : Pediatric spondylolisthesis, Transsacral rod, Jackson technique, Intraoperative CT, Navigation, Circumferential fusion
Plan
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