Shoulder: discussion + exam with orthopedic surgeon, Alton Barron, M.D.

A fiber-osseous, rubbery structure likened to calamari that increases the depth of the glenoid socket and provides static stability through a suction-cup effect.

One of the two rotator cuff muscles on the back side of the joint, providing external rotation and stability.

A fracture of the prominence of the humerus where the supraspinatus and infraspinatus attach; often associated with a fractured dislocation due to violent injury.

An incomplete dislocation where the shoulder pops out and back in easily, often due to tissue laxity.

Also known as 'frozen shoulder', a common condition characterized by intense spontaneous inflammation and thickening of the joint capsule, leading to stiffness and pain.

Also known as mixed brachial plexopathy, a nerve problem that can cause an indented pectoralis muscle.

A group of four muscles (supraspinatus, subscapularis, infraspinatus, teres minor) that encompass and enshroud the shoulder joint, providing dynamic stability.

One of the two rotator cuff muscles on the back side of the joint, aiding in external rotation and stability. It almost never tears.

When the shoulder comes out of joint and typically needs assistance to be put back in, often involving a massive force or perfect mechanics.

The classic appearance of a ruptured biceps tendon, where the muscle balls up. It often stops hurting after rupture and typically has minimal functional consequence.

Degeneration of the end of the clavicle due to repetitive jamming or bruising, often seen in weightlifters, causing inflammation and pain.

A network of nerves passing through the shoulder area, making it very sensitive to palpation.

Superior Labral Anterior Posterior tear, an injury to the superior labrum often seen in overhead athletes, weightlifters, and CrossFit participants.

Magnetic Resonance Imaging, a diagnostic tool used to visualize soft tissues like the labrum and rotator cuff, but often shows asymptomatic findings.

A thin, filmy structure that forms between two differentially moving anatomical structures in the limbs, allowing frictionless gliding.

The primary rotator cuff muscle that initiates elevation of the shoulder and is very commonly torn.

The bony roof of the shoulder, under which the rotator cuff glides.

The socket of the shoulder joint, which is a flat end of part of the scapula. It's a shallow socket, unlike the hip's acetabulum.

A treatment modality emphasized for rehabilitation, especially for frozen shoulder, to improve mobility and strength.

A very shallow joint between the sternum and clavicle, susceptible to dislocation from hard lateral blows, potentially life-threatening if displaced behind the manubrium.

Connective tissues that connect muscle to bone.

One of the rotator cuff muscles located in the front, helping with internal rotation and allowing reaching behind the back.

Degeneration and true loss of cartilage integrity in the shoulder joint, which can occur preferentially on the humeral head or glenoid fossa, often with a genetic predisposition.

A computed tomography scan, another imaging modality mentioned in the context of orthopedic diagnosis.

A tear of the pectoralis tendon from the bone, often seen in weightlifters, causing bruising down the arm and gross asymmetry.

Connective tissues that connect bone to bone, providing static stability to joints.

Inflammation of the long head of the biceps tendon, which can be very painful and affect everyday life.

A bone spur on the acromion that can irritate the bursa and rotator cuff tendon, leading to bursitis and tears.

An injury to the acromioclavicular joint, classified by grades based on ligament tearing and clavicle displacement.

The true socket in the hip that creates a deep ball-and-socket joint, contrasting with the shallow shoulder joint.

Inflammation and thickening of the bursa, causing pain due to irritation.

A complex looking triangular bone with a big ridge; the collar bone attaches to it. It forms part of the shoulder joint.

The joint between the acromion and clavicle, described as a McPherson strut, acting as a stabilizer bar. It's commonly injured in falls on the point of the shoulder.

The upper part of the arm bone (humerus) that forms the ball of the shoulder joint, which can experience cartilage loss in arthritis.

The breastplate where the clavicle connects, forming the sternoclavicular joint.

A former Denver Broncos quarterback whose pain reportedly went away after his biceps tendon ruptured, allowing him to win two Super Bowls.

A pioneering surgeon in Northern California who categorized and identified SLAP tears as clinically relevant entities.

A professor of Cardiology at Tulane who could diagnose valve issues purely by listening with a stethoscope, exemplifying lost clinical acumen.

The quarterback for UT who suffered an SC joint injury in the Alabama game, highlighting the commonality of such injuries in contact sports.

The host of the podcast, a physician with a personal history of shoulder injuries including a boxing subluxation, military press injury, and a nearly complete labral tear.

A professional society for sports medicine professionals, where research studies on treatments like PRP for tennis elbow were presented.

A prominent orthopedic hospital in New York where Peter Attia's patient sought second opinions for a sternoclavicular joint injury.

The metal used for the head component in humeral head resurfacing and total shoulder replacements, similar to hip implants.

Heavy suture material used in AC joint reconstruction to pull down the clavicle and stabilize the joint.

Components used in AC joint reconstruction, part of the 'dog bone' technique.

A surgical procedure to replace the arthritic surfaces of the glenoid and humeral head with prosthetic components, primarily indicated for pain incompatible with good function.

A small dose of cortisone injected into the shoulder joint to control inflammation and provide dramatic, immediate pain relief for conditions like frozen shoulder.

A historical text by a general surgeon emphasizing the clinical diagnosis of appendicitis without advanced imaging, highlighting the importance of nuanced physical examination.