Fig. 1. Fatty infiltration in the bilateral multifidus muscles was evaluated with the Goutallier classification at the C5–C6 level. Axial cuts of T2-weighted magnetic resonance imaging sequences were utilized to assess Goutallier classification. Each grade of Goutallier classification was defined as follows: (A) Goutallier 0, no visible fat streaks; (B) Goutallier 1, minimal fatty streaks; (C) Goutallier 2, more muscle present than fat; (D) Goutallier 3, fat and muscle present in equal quantities; (E) Goutallier 4, more fat present than muscle.
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