Podcast
Questions and Answers
Which structure is primarily involved in rotator cuff tendonitis?
Which structure is primarily involved in rotator cuff tendonitis?
What is the most common cause of shoulder pain according to the provided content?
What is the most common cause of shoulder pain according to the provided content?
Bicipital tendonitis involves the inflammation of which structure?
Bicipital tendonitis involves the inflammation of which structure?
Which group is commonly seen to have affected structures in the subacromial space?
Which group is commonly seen to have affected structures in the subacromial space?
Signup and view all the answers
What is subacromial bursitis?
What is subacromial bursitis?
Signup and view all the answers
What are most rotator cuff injuries and tears from?
What are most rotator cuff injuries and tears from?
Signup and view all the answers
What is the effect of poor posture on shoulder mechanics?
What is the effect of poor posture on shoulder mechanics?
Signup and view all the answers
Which postural deviation is associated with tight upper trapezius (UT) and levator scapulae muscles?
Which postural deviation is associated with tight upper trapezius (UT) and levator scapulae muscles?
Signup and view all the answers
What happens to the subacromial space as a result of poor posture?
What happens to the subacromial space as a result of poor posture?
Signup and view all the answers
Compression of the supraspinatus tendon as it passes between the acromion and coracoid process is most commonly caused by what anatomical abnormality?
Compression of the supraspinatus tendon as it passes between the acromion and coracoid process is most commonly caused by what anatomical abnormality?
Signup and view all the answers
Weak deep neck flexors are secondary to which type of spinal extension?
Weak deep neck flexors are secondary to which type of spinal extension?
Signup and view all the answers
Which of the following is a postural deviation that affects shoulder mechanics during activities of daily living (ADLs)?
Which of the following is a postural deviation that affects shoulder mechanics during activities of daily living (ADLs)?
Signup and view all the answers
Which condition is treated by subacromial decompression or acromioplasty?
Which condition is treated by subacromial decompression or acromioplasty?
Signup and view all the answers
Aging primarily leads to which anatomical change affecting the shoulder?
Aging primarily leads to which anatomical change affecting the shoulder?
Signup and view all the answers
How does poor posture alter the shoulder muscles?
How does poor posture alter the shoulder muscles?
Signup and view all the answers
What kinetic issue is associated with glenohumeral instability?
What kinetic issue is associated with glenohumeral instability?
Signup and view all the answers
Which part of the joint is NOT directly involved in the discussed shoulder abnormalities?
Which part of the joint is NOT directly involved in the discussed shoulder abnormalities?
Signup and view all the answers
What is the most affected tendon due to osteophyte formation under the acromion?
What is the most affected tendon due to osteophyte formation under the acromion?
Signup and view all the answers
Which anatomical shape of the acromion is typically associated with impingement issues?
Which anatomical shape of the acromion is typically associated with impingement issues?
Signup and view all the answers
Study Notes
Compression and Irritation
- Compression and irritation of soft tissues in the subacromial space, leading to shoulder pain
- One of the most common causes of shoulder pain
Structures Commonly Affected
- Structures under the acromial arch, including rotator cuff tendons and biceps tendon
- Rotator cuff tendonitis: inflammation of the rotator cuff tendon(s), usually the supraspinatus tendon
- Bicipital tendonitis: inflammation of the biceps tendon and its tendon sheath
- Subacromial bursitis: inflamed bursa in the subacromial space
Commonly Seen In
- Athletes
- People with poor posture
- People whose jobs require frequent overhead reaching
- Most rotator cuff injuries and tears are from microtrauma to the tendon
Pathophysiology/Pathomechanics
- Pathophysiology: disordered physiological processes
- Pathomechanics: unwanted/altered mechanics
Anatomical Abnormalities
- Compression of the supraspinatus tendon due to an abnormality in the shape of the coracoid process, acromion, and/or humeral head
- Only fix is surgical (subacromial decompression/acromioplasty)
Glenohumeral Instability
- Results in decreased subacromial space
- Kinesiology: the humerus rolls superior but the inferior glide is absent or insufficient
- Or mechanical imbalance or incoordination of the scapular stabilizers
Aging
- Osteophyte formation under the acromion limits the subacromial space
- Supraspinatus tendon is most affected
Posture and Mechanics
- Poor posture impacts shoulder mechanics, creating pathomechanics
- Puts shoulder out of anatomical position/proper alignment and alters line of pull of muscles
- Decreases subacromial space, creates muscle imbalances
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
Description
Subacromial impingement syndrome is a common cause of shoulder pain, caused by compression and irritation of soft tissues in the subacromial space. Learn about the structures commonly affected and the condition's pathophysiology.
