Chapter 13

1
Chapter 13 The Shoulder and Upper Arm

• Pages 470 - 476

2
Quiz

• Question 1
• List 5 structures involved in shoulder
  impingement syndrome.
• Question 2
• Describe 3 causes of impingement syndrome.

3
Quiz

• Question 3
• Describe the vascularization of the rotator cuff
  muscles.
• Question 4
• Describe how you would differentiate between
  impingement syndrome and a rotator cuff tear.

4
Quiz

• Question 5
• What causes a positive test for the Neer
  Impingement Test and the Hawkins Impingement Test.

5
List 5 structures involved in shoulder
impingement syndrome.

• Rotator cuff tendons (primarily supraspinatus)
• Long head of biceps brachii tendon
• Subacromial bursa
• GH joint capsule
• Head of humerus
• Coracoacromial arch

6
Describe 3 causes of impingement syndrome.

• Anatomical variation in coracoacromial arch
• Rotator cuff weakness/fatigue
• Repetitive overhead motion
• Scapular dyskinesis
• GH instability
• Poor posture

7
Describe the vascularization of the rotator cuff
muscles.

• Relatively poor vascularization
• Hinders healing process
• Supraspinatus most susceptible to inflammatory
  conditions
• Humeral head wringing the tendon dry of blood
  and vital nutrients

8
What causes a positive test for the Neer
Impingement Test and the Hawkins Impingement
Test.

• The motion of the test impinges the rotator cuff
  (especially the supraspinatus) or long head of
  biceps brachii tendon between the greater
  tuberosity and inferior side of acromion process.