Musculotendinous Disorders in the Upper Extremity: Part 1. MRI of the Shoulder and Upper Arm

AbstractMuscle and tendon injuries about the shoulder and upper arm are commonly evaluated and characterized with magnetic resonance imaging. This article reviews our experience with abnormalities of the rotator cuff tendons and muscles as well as the deltoid muscle in the shoulder. We discuss and illustrate abnormalities of the upper arm such as strain injuries of the pectoralis major, strain injuries of the teres major and latissimus dorsi, and contusion and crush injuries of the biceps and brachialis muscles in the upper arm.

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Musculotendinous Disorders in the Upper Extremity: Part 2. MRI of the Elbow, Forearm, Wrist, and Hand

Seminars in Musculoskeletal Radiology ◽

10.1055/s-0037-1604008 ◽

2017 ◽

Vol 21 (04) ◽

pp. 376-391 ◽

Cited By ~ 1

Author(s):

Robert Boutin ◽

Russell Fritz

Keyword(s):

Magnetic Resonance Imaging ◽

Magnetic Resonance ◽

Upper Extremity ◽

Tendon Injury ◽

Tendon Injuries ◽

Resonance Imaging ◽

Upper Arm ◽

Extensor Tendons ◽

Crush Injuries ◽

Distal Aspect

AbstractMuscle and tendon injuries about the elbow and more distal aspect of the upper arm are commonly evaluated and characterized with magnetic resonance imaging. This article reviews our experience with muscle and tendon injury as well as denervation of muscles. We focus on abnormalities of the biceps and the triceps tendons about the elbow as well as abnormalities of the flexor and extensor tendons about the elbow, forearm, wrist, and hand. We also discuss and illustrate our experience with lacerations, crush injuries, and muscle hernias in the forearm.

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Magnetic Resonance Imaging Grading System for Tears of the Latissimus Dorsi and Teres Major

JSES Open Access ◽

10.1016/j.jses.2019.10.091 ◽

2019 ◽

Vol 3 (4) ◽

pp. 257-258

Author(s):

Brandon Erickson ◽

Peter Chalmers ◽

Hollis Potter ◽

David Altchek ◽

Anthony Romeo

Keyword(s):

Magnetic Resonance Imaging ◽

Magnetic Resonance ◽

Latissimus Dorsi ◽

Grading System ◽

Resonance Imaging ◽

Teres Major

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Magnetic Resonance Imaging Grading System for Tears of the Latissimus Dorsi and Teres Major

Orthopaedic Journal of Sports Medicine ◽

10.1177/2325967119826548 ◽

2019 ◽

Vol 7 (3) ◽

pp. 232596711982654 ◽

Cited By ~ 2

Author(s):

Brandon J. Erickson ◽

Peter N. Chalmers ◽

Hollis G. Potter ◽

David W. Altchek ◽

Anthony A. Romeo

Keyword(s):

Magnetic Resonance Imaging ◽

Magnetic Resonance ◽

Latissimus Dorsi ◽

Grading System ◽

Resonance Imaging ◽

Teres Major

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Deltoid muscle shape analysis with magnetic resonance imaging in patients with chronic rotator cuff tears

BMC Musculoskeletal Disorders ◽

10.1186/1471-2474-14-247 ◽

2013 ◽

Vol 14 (1) ◽

Cited By ~ 14

Author(s):

Dominik C Meyer ◽

Stefan Rahm ◽

Mazda Farshad ◽

Georg Lajtai ◽

Karl Wieser

Keyword(s):

Magnetic Resonance Imaging ◽

Magnetic Resonance ◽

Rotator Cuff ◽

Shape Analysis ◽

Deltoid Muscle ◽

Rotator Cuff Tears ◽

Resonance Imaging

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Magnetic Resonance Imaging of Pseudo-impingement of Rotator Cuff with Strength Training

10.25259/ijmsr_21_2019 ◽

2019 ◽

Vol 1 ◽

pp. 2-6

Author(s):

Asad Naqvi ◽

Timothy Ariyanayagam ◽

Mir Akber Ali ◽

Akhila Rachakonda ◽

Hema N. Choudur

Keyword(s):

Magnetic Resonance Imaging ◽

Magnetic Resonance ◽

Rotator Cuff ◽

Strength Training ◽

Radiology Department ◽

Resonance Imaging ◽

Subacromial Space ◽

History Of ◽

Magnetic Resonance Imaging Mri ◽

Training Exercises

Objective: The objective of this study was to outline a novel unique concept of secondary impingement of the muscles, myotendons, and tendons of the rotator cuff from hypertrophy as a result of strength training exercises. Methods: In this retrospective observational study, 58 patients were referred for an magnetic resonance imaging (MRI) by the orthopedic surgeon to the radiology department over a period of 1½ years. All patients gave a history of strength training exercises and presented with clinical features of rotator cuff impingement. Results: We identified features of hypertrophy of rotator cuff muscles, myotendons, and tendons in 12 of these 58 patients. This was the only abnormality on MRI. The hypertrophy of rotator cuff muscles and tendon bulk completely filling the subacromial space to the point of overfilling and resulting in secondary compressive features. Conclusion: Rotator cuff impingement is a common phenomenon that can occur with various inlet and outlet pathological conditions. However, rotator cuff impingement may also result from muscle and tendon hypertrophy from strength training regimens. Hypertrophy of the rotator cuff can result in overfilling of the subacromial space, leading to secondary impingement, which we have termed as “pseudo-impingement.”

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