Reliability of MR-Based Volumetric 3-D Analysis of Pelvic Muscles among Subjects with Low Back with Leg Pain and Healthy Volunteers

Elżbieta Skorupska, Przemysław Keczmer, Rafał M Łochowski, Paulina Tomal, Michał Rychlik and Włodzimierz Samborski

PLOS ONE, 2016, vol. 11, issue 7, 1-15

Abstract: Aim: Lately, the diagnostic value of magnetic resonance imaging, Lasègue sign and classic neurological signs have been considered not accurate enough to distinguish the radicular from non-radicular low back with leg pain (LBLP) and a calculation of the symptomatic side muscle volume has been indicated as a probable valuable marker. However, only the multifidus muscle volume has been calculated so far. The main objective of the study was to verify whether LBLP subjects presented symptomatic side pelvic muscle atrophy compared to healthy volunteers. The second aim was to assess the inter-rater reliability of 3-D manual method for segmenting and measuring the volume of the gluteus maximus, gluteus medius, gluteus minimus and piriformis muscles in both LBLP patients and healthy subjects. Method: Two independent raters analyzed MR images of LBLP and healthy subjects towards muscle volume of four pelvic muscles, i.e. the piriformis, gluteus minimus, gluteus medius and gluteus maximus. For both sides, the MR images of the muscles without adipose tissue infiltration were manually segmented in 3-D medical images. Results: Symptomatic muscle atrophy was confirmed in only over 50% of LBLP subjects (gluteus maximus (p

Date: 2016
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Persistent link: https://EconPapers.repec.org/RePEc:plo:pone00:0159587

DOI: 10.1371/journal.pone.0159587

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