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2024, Number 4

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Cir Columna 2024; 2 (4)

Titanium levels in early-onset scoliosis patients treated with growing rods

Díez-Sanchidrián E, Díez-Ulloa MA

Language: Spanish
References: 24
Page: 231-236
PDF size: 309.85 Kb.


ABSTRACT

Titanium is a metal, that is in the vast majority of spinal implants. The local tissue reaction to titanium has been described, as well as titanium blood and distant tissue levels in carriers of said spinal implants. Early-onset scoliosis sometimes requires interventions to instrument the spine, but it must allow correct development of the rib cage, so long definitive spinal fusions must be avoided and thus implants that allow growth (growing rods, growth-friendly) were developed. To lengthen them, it is necessary to undergo surgery on the patient. In order to avoid repeated interventions, growth rods have been developed that elongate using magnetic fields without the need for surgical intervention. Metallosis has been described in carriers of these magnetic bars. A systematic review of the literature is performed to see if magnetic growing rods produce higher levels of titanium than the traditional ones. Patients with magnetic growth bars present higher titanium levels than those with traditional ones, but these also show titanium levels and even control patients without any implant also present them. To date no one has proven a definitively deleterious effect of titanium, but it is a ubiquitous element although it is not present in any physiological metabolic pathway in the human being.


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