Inter-examiner reliability in identifying lumbar paraspinal muscle atrophy by lumbar paraspinal muscle atrophy index, a novel parameter.
Inter-rater reliability
Low-back pain
Lumbar paraspinal muscle
Journal
Journal of physical therapy science
ISSN: 0915-5287
Titre abrégé: J Phys Ther Sci
Pays: Japan
ID NLM: 9105359
Informations de publication
Date de publication:
Nov 2022
Nov 2022
Historique:
received:
13
07
2022
accepted:
16
08
2022
entrez:
7
11
2022
pubmed:
8
11
2022
medline:
8
11
2022
Statut:
ppublish
Résumé
[Purpose] To evaluate the inter-examiner reliability of our novel parameter, the lumbar paraspinal muscle atrophy index, in identifying the lumbar paravertebral muscle atrophy. [Participants and Methods] The study group consisted of 225 adults, with a mean age of 64.7 (range, 21-89) years, who underwent posterior lumbar spinal surgery for degenerative spinal disease at our hospital between July 2013 and June 2017. Preoperative axial T2-weighted magnetic resonance images were used to evaluate the lumbar paraspinal muscle atrophy index and observe the presence or absence of severe lumbar paraspinal muscle atrophy. The lumbar paraspinal muscle atrophy index was calculated at each intervertebral level, from L1-2 through L4-5, once by two examiners, and the Cohen's kappa statistic was used to calculate the inter-examiner agreement of the classification of the presence or absence of atrophy at each level. [Results] The agreement was high (kappa, 0.79-0.88) for the lumbar paraspinal muscle atrophy index at all levels, except at the L3-4 level (kappa, 0.49). The lower kappa statistic at L3-4 likely reflects the unique morphological characteristics at this level. [Conclusion] The lumbar paraspinal muscle atrophy index is a new, simple, easy-to-use, and sufficiently reliable parameter to identify lumbar paraspinal atrophy.
Identifiants
pubmed: 36337221
doi: 10.1589/jpts.34.737
pii: 2022-071
pmc: PMC9622343
doi:
Types de publication
Journal Article
Langues
eng
Pagination
737-740Informations de copyright
2022©by the Society of Physical Therapy Science. Published by IPEC Inc.
Déclaration de conflit d'intérêts
The authors declare no conflict of interest. This study was not funded.
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