During today's episode, Dr. Malanga will discuss with his residents the anatomy of the shoulder as well as the difference between static and dynamic stabilizers pertaining to the shoulder joint.  Most importantly, he will discuss how these stabilizers interact with each other to maintain a well-functioning shoulder joint to perform our everyday tasks.

Time Stamp

· Intro (0:00)

· Defining static stabilizers vs. dynamic stabilizers of the shoulder (0:40)

· Comparing the surface area of the hip joint to the shoulder joint (2:30)

· Dynamic stabilizers involve a functional neuromuscular system (4:59)

· Facioscapulohumeral dystrophy (6:10)

· What are the dynamic stabilizers of the shoulder? (7:41)

· Nerve innervation of the rotator cuff muscles (8:22)

· Nerves that branch off the posterior cord: Mnemonic STAR (9:30)

· Actions of the rotator cuff muscles (11:06)

· Actions of the deltoid muscle group (13:55)

· Understanding why radiologist identify impingement on x-ray (16:25)

· Biomechanics of “impingement syndrome” (19:40)

· Types of acromion process and how it relates to rotator cuff pathology (21:20)

· Closing remarks (24:20)