Jeg har prøvet, om jeg kunne finde noget til dig om varighed.
Det lader til, hvis jeg ellers har forstået det korrekt, at det ikke er helt afgjort endnu, om det er varigt eller ej.
De kroniske smerter ser dog ud til at være varige, selvom "billederne" har ændret sig.
Jeg søgte på "Modic Type 2" på Google. Der kom en masse frem om det.
(Prøv evt. også samme søgeord plus kronisk eller varighed.)
Nedenfor blot et eksempel.
Citat:
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Modic Type 2 (MT2) neuroimaging changes are considered stable or invariant over time and relatively quiescent, whereas Modic Type 1 (MT1) changes are considered unstable and more symptomatic. The authors report two cases in which MT2 changes were symptomatic and evidently unstable, and in which chronic low-back pain severity remained unaltered despite a MT2–MT1 reverse transformation. Two women (41 and 48 years old) both presented with chronic low-back pain. Magnetic resonance (MR) images demonstrated degenerating discs at L5–S1 associated with well-established MT2 changes in adjacent vertebrae. Repeated MR imaging in these two patients after 11 months and 7 years, respectively, revealed reverse transformation of the MT2 changes into more florid MT1 changes, despite unaltered chronic low-back pain severity. Following anterior discectomy and disc arthroplasty, immediate abolition of chronic low-back pain was achieved in both patients and sustained at 3-year follow up. Modic Type 2 changes are therefore neither as stable nor as quiescent as originally believed. Each type can change, with equal symptom-generating capacity. More representative imaging–pathological correlates are required to determine the precise nature of MT changes.
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http://thejns.org/doi/abs/10.3171/spi.2007.7.1.114