KIN 184 Quiz 2 (Shoulder slides)

Scapulothoracic Joint

scapula to ribcage

Acromioclavicular joint (AC joint)

acromion to clavical

Glenohumeral joint

humerus and glenoid fossa (socket)

Scapula

clavical

Scapular spine

Acromium

boney projection from scapular spine

Glenoid fossa

The part of the scapula that joins with the humeral head to form joint

Bicep image

Bicep location

anterior humerous

bicep brachii

elbow flexion

supination

tricep image

tricep motion

elbow extension

rotator cuff image

rotator cuff motion

abduction

internal rotation

external. rotation

deltoid image

deltoid motion

abduction

Supraspinatus image

above spine of scapula

Supraspinatus motion

abduction

subscapularis image

subscapularis motion

internal rotation

Infraspinatus image

infraspinatus motion

external rotation

teres minor image

teres minor motion

external rotation

scapulohumeral rhythm

movement relationship between the humerus and the scapula during arm raising movements

anterior shoulder stretch

sleeper stretch

internal rotation stretch

external rotation stretch

holding towel stretch

flexibility

moving towel stretch

range of motion

pendulum exercise

Acromioclavicular (AC) Joint Sprain

ac joint sprain deformity

step deformity

ac joint sprain test

shear test

glenohumeral dislocation

most commonly anterior, rarely anterior, almost never inferior, superior not possible bc of bone

humerus bone moves posteriorly, therefore head of humerous pops out anteriorly

glenohumeral dislocation image

acute glenohumeral dislocation

emergency bc of nerve damage and fracture possible

could kill arm if left

anterior glenohumeral dislocation motion

abducted and external rotation (thumbs out)

posterior glenohumeral dislocation motion

adducted and internal rotation

chronic glenohumeral dislocation

usually athlete experiences instability prior to this (ex. double jointed or other weird instability things), as the occurrences increase, the impact needed to dislocate decreases

less pain compared to acute

click crunch

ROTATOR CUFF INJURY

usually overhead athletes

occue with not enough body rotation

SITS Muscles

impingement injury

-due to the rotator cuff muscles impacting with a structure causing compression

-acromion or sub acromial bursa

-this injury involves the SUPRASPINATUS AND SUBACROMIAL BURSA

-common in swimmers due to motions of flexion, abduction, and internal rotation

-"painful arch" 70*-120*

-Symptoms: deep pain (initially at night) worse in overhead position

bicipital tendonitis

overuse injury to the long origin tendon of the biceps that causes friction and pain on the lateral front of the shoulder

bicep tendon rupture

• Prolonged tendonitis can weaken the structure making it easier to rupture

• Forceful flexion with great resistance

• i.e.: weightlifting and gymnastics

• Symptoms: "Popeye", initial intense pain, partial rupture still see slight deformity, weakness such as an inability to flex one's elbow

thoracic outlet syndrome

nerves and vessels compressed in axilla (armpit)

common in swim/weight lift bc of overhead stress

clavicular fracture

most occur in middle

common in ice hockey martial arts lacrosse cycling

scapular fracture

MOI: Direct blow; fall on an outstretched arm (rare injury in sports)

S/S: Pain

TX: Immobilization followed by rehabilitation. pins usually to fix

humeral fracture

Broken upper arm

FOOSH (fall on out stretched hand)

glenoid labrum (labral tears)

• Your labrum "deepens" your shoulder

• Cartilage which can get torn

• Lines your glenoid (socket joint)

• Bicep brachii long head attaches here

• Common in overhead sports such as swimming and baseball

• Symptoms: clicking, locking, catching, inability to reach back behind them

SLAP Tear

superior labrum anterior to posterior

common in throwing athletes

velocity and stregth in throw decrease