A semi-automated quantitative CT method for measuring rotator cuff muscle degeneration in shoulders with primary osteoarthritis.

Détails

ID Serval
serval:BIB_AA1960D20E7B
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Titre
A semi-automated quantitative CT method for measuring rotator cuff muscle degeneration in shoulders with primary osteoarthritis.
Périodique
Orthopaedics & traumatology, surgery & research : OTSR
Auteur(s)
Terrier A., Ston J., Dewarrat A., Becce F., Farron A.
ISSN
1877-0568 (Electronic)
ISSN-L
1877-0568
Statut éditorial
Publié
Date de publication
04/2017
Peer-reviewed
Oui
Volume
103
Numéro
2
Pages
151-157
Langue
anglais
Notes
Publication types: Journal Article
Publication Status: ppublish
Résumé
Rotator cuff muscle degeneration is an important parameter to consider when planning shoulder arthroplasty.
We hypothesized that rotator cuff muscle degeneration is correlated with scapulohumeral subluxation in patients planned for anatomical total shoulder arthroplasty (TSA).
We developed a semi-automated quantitative CT method to measure rotator cuff muscle degeneration, and retrospectively analyzed 107 preoperative shoulder CT scans of patients with primary osteoarthritis. On a standardized sagittal-oblique CT slice perpendicular to the scapular axis, two observers measured the cross-sectional areas of residual rotator cuff muscle tissues, normalized by the estimated area of healthy muscles. Muscle degeneration was quantified in a semi-automated manner, and divided into atrophy and fatty infiltration. Scapulohumeral subluxation was determined in 3D as the distance between the humeral head center and the glenoid surface center, projected on the same CT slice, and normalized by the humeral head radius. We tested all potential correlations between muscle degeneration and scapulohumeral subluxation.
Muscle degeneration, primarily due to atrophy, predominated in the supraspinatus; it varied from 0.8% to 88.8%. Scapulohumeral subluxation varied from 2.5% to 72.9%, and was mainly in a posterior and postero-superior orientation. There was a significant but weak correlation between the amount of subluxation and both supraspinatus (R=0.207, P=0.032) and infraspinatus (R=0.225, P=0.020) degeneration. Inter- and intra-observer reproducibility of muscle degeneration measurements were both excellent (ICCs range=0.955-0.987 and 0.971-0.988, respectively).
This new semi-automated CT method allows to quantitatively and reproducibly measure rotator cuff muscle degeneration in shoulders with primary osteoarthritis. Muscle degeneration is weakly correlated with scapulohumeral subluxation in patients planned for anatomical TSA.
Level IV.
Diagnostic retrospective study.

Pubmed
Web of science
Open Access
Oui
Création de la notice
17/01/2017 18:53
Dernière modification de la notice
20/08/2019 15:14
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