Exam 2: UE + Hip Flashcards
(273 cards)
What are the 4 joints at the shoulder?
-Sternoclavicular
-Acromioclavicular
-Glenohumeral
-Scapulothoracic
How much of the humeral head is in contact with the glenoid?
-25% humeral head in contact with glenoid
-75% in contact with labrum
What is the most commonly dislocated joint in the body? Why?
-GHJ
-It lacks bony stability
What is the GHJ composed of?
-Fibrous capsule
-Ligaments
-Surrounding muscles
-Glenoid labrum
What muscles form part of the capsule?
-The rotator cuff
-Supraspinatus
-Infraspinatus
-Subscapularis
-Teres minor
What is joint approximation and what is it typically used for?
-Compression of a joint surface
-Used to promote reflexive stability, often used with weight bearing activities
-Thought to stimulate type 1 receptors and facilitate postural stabilizers
What is joint centration achieved by?
Achieved by the combined neuro-motor tasks of:
-Stabilization
-Dissociation
What is the self perpetuating pattern of movement dysfunction?
Any stressor to the nervous system, including acute and repetitive trauma, emotional stress, can up-regulate the sympathetic nervous system and pain which alter movement strategies that further increase dysfunction
What are local vs global muscles?
-Local: involved in joint stabilization; oxidative
-Global: movers; aerobic
Which of the rotator cuff muscles is the only one that pulls the humeral head posteriorly? Why?
Subscapularis, because internal rotation causes a posterior glide of the humerus
What is closed pack position of the GHJ?
90 degrees of abduction and full ER
What is open pack position of the GHJ?
55 degrees abduction, 30 degrees horizontal adduction
What is the capsular pattern of the GHJ?
-ER
-Abduction
-IR
What are special questions for the shoulder that a PT should ask the patient?
-Feeling of instability
-Popping, catching, painful popping
-Tingling
-Night time awakening
-Trouble lifting, reaching, etc.
What does night time awakening suggest for the shoulder?
Internal derangement
What are common causes of shoulder injuries?
-Traumatic
-Sports
-Overuse
-Insidious onset
What are the 3 types of Kibler classification for scapular dyskinesis?
-Type 1: inferior medial border
-Type 2: Medial border off ribs
-Type 3: elevated superior border
What is Kibler Type 1 scapular dyskinesis? What muscles are tight? Which are weak?
-Inferior medial border more prominent
-Anterior tilt of scapula
-Coracoid process often TTP
-Tight: pec minor, biceps SH
-Weak: lower trap, lats, serratus anterior
What is Kibler Type 2 scapular dyskinesis? What muscles are tight? Which are weak?
-Entire medial border off ribs
-Points glenoid fossa anteriorly
-Weak serratus anterior and lower traps
What is Kibler Type 3 scapular dyskinesis? What muscles are tight? Which are weak?
-Superior border of the scapula is elevated
-Usually with adhesive capsulitis
-Tight: upper trap
-Weak: lower trap
What level of the spine is the acromion at?
C7
What level of the spine is the medial portion of the spine of the scapula at?
T3
What level of the spine is the inferior border of the scapula at?
T7
What are common causes of shoulder pain that do not originate from the shoulder joint?
-C-spine nerve impingement
-Peripheral nerve entrapment
-Diaphragm irritation
-Intrathoracic tumors
-Gallbladder problems
-Myocardial ischemia
-Pancoast tumor