Intramuscular fat infiltration evaluated by magnetic resonance imaging predicts the extensibility of the supraspinatus muscle

Hugo Giambini, Taku Hatta, Gorny R. Krzysztof, Per Widholm, Anette Karlsson, Olof D. Leinhard, Mark Charles Adkins, Chunfeng D Zhao, Kai Nan An

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

Introduction: Rotator cuff (RC) tears result in muscle atrophy and fat infiltration within the RC muscles. An estimation of muscle quality and deformation, or extensibility, is useful in selecting the most appropriate surgical procedure. We determined if noninvasive quantitative assessment of intramuscular fat using MRI could be used to predict extensibility of the supraspinatus muscle. Methods: Seventeen cadaveric shoulders were imaged to assess intramuscular fat infiltration. Extensibility and histological evaluations were then performed. Results: Quantitative fat infiltration positively correlated with histological findings and presented a positive correlation with muscle extensibility (r=0.69; P=0.002). Extensibility was not significantly different between shoulders graded with a higher fat content versus those with low fat when implementing qualitative methods. Conclusions: A noninvasive prediction of whole-muscle extensibility may directly guide pre-operative planning to determine if the torn edge could efficiently cover the original footprint while aiding in postoperative evaluation of RC repair.

Original languageEnglish (US)
JournalMuscle and Nerve
DOIs
StateAccepted/In press - 2017

Fingerprint

Rotator Cuff
Fats
Magnetic Resonance Imaging
Muscles
Muscular Atrophy

Keywords

  • Fat infiltration
  • Muscle extensibility
  • Rotator cuff repair
  • Rotator cuff tear
  • Supraspinatus muscle
  • Tendon retraction

ASJC Scopus subject areas

  • Physiology
  • Clinical Neurology
  • Cellular and Molecular Neuroscience
  • Physiology (medical)

Cite this

Giambini, H., Hatta, T., Krzysztof, G. R., Widholm, P., Karlsson, A., Leinhard, O. D., ... An, K. N. (Accepted/In press). Intramuscular fat infiltration evaluated by magnetic resonance imaging predicts the extensibility of the supraspinatus muscle. Muscle and Nerve. https://doi.org/10.1002/mus.25673

Intramuscular fat infiltration evaluated by magnetic resonance imaging predicts the extensibility of the supraspinatus muscle. / Giambini, Hugo; Hatta, Taku; Krzysztof, Gorny R.; Widholm, Per; Karlsson, Anette; Leinhard, Olof D.; Adkins, Mark Charles; Zhao, Chunfeng D; An, Kai Nan.

In: Muscle and Nerve, 2017.

Research output: Contribution to journalArticle

Giambini, Hugo ; Hatta, Taku ; Krzysztof, Gorny R. ; Widholm, Per ; Karlsson, Anette ; Leinhard, Olof D. ; Adkins, Mark Charles ; Zhao, Chunfeng D ; An, Kai Nan. / Intramuscular fat infiltration evaluated by magnetic resonance imaging predicts the extensibility of the supraspinatus muscle. In: Muscle and Nerve. 2017.
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AU - Giambini, Hugo

AU - Hatta, Taku

AU - Krzysztof, Gorny R.

AU - Widholm, Per

AU - Karlsson, Anette

AU - Leinhard, Olof D.

AU - Adkins, Mark Charles

AU - Zhao, Chunfeng D

AU - An, Kai Nan

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N2 - Introduction: Rotator cuff (RC) tears result in muscle atrophy and fat infiltration within the RC muscles. An estimation of muscle quality and deformation, or extensibility, is useful in selecting the most appropriate surgical procedure. We determined if noninvasive quantitative assessment of intramuscular fat using MRI could be used to predict extensibility of the supraspinatus muscle. Methods: Seventeen cadaveric shoulders were imaged to assess intramuscular fat infiltration. Extensibility and histological evaluations were then performed. Results: Quantitative fat infiltration positively correlated with histological findings and presented a positive correlation with muscle extensibility (r=0.69; P=0.002). Extensibility was not significantly different between shoulders graded with a higher fat content versus those with low fat when implementing qualitative methods. Conclusions: A noninvasive prediction of whole-muscle extensibility may directly guide pre-operative planning to determine if the torn edge could efficiently cover the original footprint while aiding in postoperative evaluation of RC repair.

AB - Introduction: Rotator cuff (RC) tears result in muscle atrophy and fat infiltration within the RC muscles. An estimation of muscle quality and deformation, or extensibility, is useful in selecting the most appropriate surgical procedure. We determined if noninvasive quantitative assessment of intramuscular fat using MRI could be used to predict extensibility of the supraspinatus muscle. Methods: Seventeen cadaveric shoulders were imaged to assess intramuscular fat infiltration. Extensibility and histological evaluations were then performed. Results: Quantitative fat infiltration positively correlated with histological findings and presented a positive correlation with muscle extensibility (r=0.69; P=0.002). Extensibility was not significantly different between shoulders graded with a higher fat content versus those with low fat when implementing qualitative methods. Conclusions: A noninvasive prediction of whole-muscle extensibility may directly guide pre-operative planning to determine if the torn edge could efficiently cover the original footprint while aiding in postoperative evaluation of RC repair.

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KW - Supraspinatus muscle

KW - Tendon retraction

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