Efficiency of a novel vertebral body augmentation system (Tektona™) in non-osteoporotic spinal fractures

Abstract

Background The restauration of the local kyphosis is crucial to thoracolumbar fractures outcomes. Recently, the Tektona™ (Spine Art) system, constituted by a flexible lamella for corporeal reduction has emerged as a promising solution for osteoporotic fractures. However, no study has yet focused on its results on traumatic fractures. Methods A retrospective longitudinal study on prospectively collected data was conducted on 53 patients that had a kyphoplasty by Tektona™, associated or not to percutaneous fixation. The data collected were clinical, surgical and scannographic (measurement of AVH, MVH and PVH (anterior/medium/posterior vertebral height), and RTA (regional traumatic angle) in°), preoperatively, post-operatively and at last follow-up. Results Fractures were mainly located at the upper lumbar spine and were AOSpine A3 type for 74%. The mean RTA was 12° in pre-operative, 4° in post-operative (p = 2e− 9), and 8° at the last follow-up (p = 0,01). The mean correction of RTA for the fixation group was − 10 ± 6° versus − 7 ± 4° for the kyphobroplasty alone group (p = 0,006). The mean correction for fractures located at T10-T12 was − 9 ± 3°, − 9 ± 5° for L1, − 8 ± 3° for L2 and − 5 ± 3° for L3-L5 (p = 0,045). Conclusions The Tektona® system appears to be efficient for acute thoraco-lumbar fractures, comparable to other available systems, allowing a real intracorporeal reduction work. Its relevance, especially in the long term needs further investigation. The association of a percutaneous fixation allow to obtain a better correction of the RTA but did not seem to prevent the loss of correction at follow-up.

Minimalinvasive Chirurgie bei Wirbelsäulentrauma – Unterschiede der Versorgungstechniken zwischen jungen und alten Patienten

“…Der über den Wert der Ballonkyphoplastie hinausgehende Wert von Verfahren mit zusätzlichen Repositionsanwendungen vor einer Kyphoplastie, wie bspw. dilatierbaren Metallstents, rotierenden expandierbaren Implantaten oder einschiebbaren Peekscheiben, ist nicht eindeutig herausgestellt [38].…”