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Fig. 2 | BMC Musculoskeletal Disorders

Fig. 2

From: Fat in the lumbar multifidus muscles - predictive value and change following disc prosthesis surgery and multidisciplinary rehabilitation in patients with chronic low back pain and degenerative disc: 2-year follow-up of a randomized trial

Fig. 2

Grading of fat in the multifidus muscles on magnetic resonance imaging. Multifidus muscles (right, arrowheads) on axial T2-weighted images located as marked on sagittal T2-weighted images (left, lines) contain fat grade 0 at L5/S1 in one patient (a) and grade 1 at L4/L5 (b) and grade 2 at L5/S1 (c) in a different patient, whose disc prosthesis causes artefacts (arrows) that do not affect the grading. Grade 0: 0 or < 20% of total muscle cross-section (left plus right side) contains fat; grade 1: 20–50% of cross-section contains fat; grade 2: >50% of cross-section contains fat

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