Shoulder Flashcards
Sternoclavicular (SC) Joint for Elevation/Depression
Rolls & Slides
Vex on Cave
Elevation : Roll Superior, Slide Inferior
Depression: Roll Inferior, Slide Superior
Sternoclavicular (SC) Joint Protraction/Retraction Rolls & Slides
Cave on Vex
Protraction: Roll & Slide Anteriorly
Retraction: Roll & Slide Posteriorly
Acromioclavicular (AC) Joint Osteokinematics
Slight Upward & Downward Rotation
Scapulothoracic (ST) Joint Osteokinematics for Elevation (shoulder shrug)
Scapula elevates with clavicle at SC Joint
Downwardly rotates at AC Joint
Scapulothoracic (ST) Joint Osteokinematics for Protraction/Retraction
Scapula protracts when clavicle protracts at SC Joint & inwardly rotates at AC joint
(reverse for retraction)
Scapulothoracic (ST) Joint Osteokinematics for Upward/Downward Rotation
Occurs with Glenohumeral Elevation
Glenohumeral (GH) Joint Osteokinematics for Flexion/Extension
120 Degrees total flexion
45-55 Extension
Spins (no roll)
Glenohumeral (GH) Joint Osteokinematics for Abduction/adduction
120 total abduction (elevation)
Vex on Cave
Abduction: Roll Superior, Slide Inferior
Adduction: Roll Inferior, Slide Superior
Glenohumeral (GH) Joint Osteokinematics Scaption
Scapular Plane= 30-35 degrees anterior to frontal plane
IR + Abduction= greater tubercle in path of acromion (high floor & low ceiling)
ER + Scaption= Greater Tubercle has the most room to move under acromion (low floor & high ceiling)
Glenohumeral (GH) Joint Internal Rotation
Rolls & Slides
Vex on Cave
Roll Anterior, Slide Posterior
Glenohumeral (GH) Joint External Rotation
Rolls & Slides
Vex on Cave
Roll Posterior, Slide Anterior
Open Pack Glenohumeral Joint
Soft tissue is as lax as possible, joint is “unlocked”, inefficient for loading
Close Pack Glenohumeral Joint
Soft tissue is under max. tension, joints are most congruent, efficient for load bearing
Glenohumeral Joint is slack anteriorly and inferiorly so motions cause it to tighten?
Abduction and External Rotation
Forward shoulder posture overtime will…
Tighten: Scapular Protractors (pec minor), Posterior GHJ capsule, & Thoracic Spine
Loosen: Anterior GHJ capsule
Overstretch: Scapular Retractors, GHJ External Rotators
What are potential causes of External Rotation deficits?
Tight Anterior Capsule
Rotator Cuff Injury
Poor Scapular Stability
What are potential causes of Internal Rotation deficits?
Tight Posterior Capsule
Repeated overhead throwing
Poor scapular stability
Scapular Dyskinesis Type 1
Inferior Angle Prominence
(“Tipping”)
Scapular Dyskinesis Type 2
Medial Border Prominence
(“Winging”)
Scapular Dyskinesis Type 3
Superior Border Prominence
(“Hike”)