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Rotator Cuff Anatomy Dr. XXXXX Hospital XXXXX Date XXXXX

Rotator Cuff Anatomy Dr. XXXXX Hospital XXXXX Date XXXXX. Rotator Cuff. Muscles/Tendons Individual Tendon Components Supraspinatus Anomalies Anterior Fibers of Supraspinatus Infraspinatus Greater Tuberosity Anatomy Bare Area of GT Interdigitation Artifact 4-5 Histologic Layers

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Rotator Cuff Anatomy Dr. XXXXX Hospital XXXXX Date XXXXX

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  1. Rotator Cuff Anatomy Dr. XXXXX Hospital XXXXX Date XXXXX

  2. Rotator Cuff • Muscles/Tendons • Individual Tendon Components • Supraspinatus Anomalies • Anterior Fibers of Supraspinatus • Infraspinatus • Greater Tuberosity Anatomy • Bare Area of GT • Interdigitation Artifact • 4-5 Histologic Layers • Cable Crescent Component • Teres Minor • Subscapularis • Rotator Intervals

  3. Rotator Cuff Muscles • Supraspinatus • Infraspinatus • Teres Minor • Subscapularis

  4. Supraspinatus • Muscular origin Supraspinatus Fossa • Inserts on Greater Tuberosity • Innervation from Suprascapular Nerve • Triple Blood Supply • Two and Perhaps three main tendinous components

  5. Supraspinatus

  6. Supraspinatus Anomalies • Separate Muscular origins from the Supraspinatus fossa, anterior component intramuscular tendon and posterior component lateral tendon • Accessory Slip extends to Lesser Tuberosity • ????

  7. Accessory Anterior Slip of Supra • 10/37 cadaveric specimens, 1 with FT RCT

  8. Zonal Anatomy of Supraspinatus Tendon • Insertional fibers-Rim Rent Tears • Critical Zone-Hypovascular • Intramuscular/Musculotendinous

  9. Anterior Insertional Fibers

  10. Anterior Insertional Fibers/Rim Rent

  11. Rim Rent Tears • Younger Patents anterior insertional SS tears, frequently with adjacent bone changes

  12. Anomalous Supraspinatus Tendon 1

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