Shoulder Common Clinical Presentations Flashcards
FRACTURES
FRACTURES
- Fractures of the proximal humerus make up __% of fractures in the appendicular skeleton.
- They are commonly referred to as FOOSH, what is this?
- 5%
- Fall on outstretched hand
What populations are at risk for fractures of the proximal humerus?
- children (growth plate)
- older adults (osteopenic/osteoporotic bone)
- In what instance is the fracture of the proximal humerus managed conservatively?
- In what instance must a patient with a fracture of the proximal humerus undergo surgery?
- When it is nondisplaced and stable
- When they have poor outcome or increased risk for complications (ORIF)
What are some risk factors that indicate a poor outcome of a proximal humerus fracture?
- severe osteoporosis
- smoking
- drug and alcohol abuse
- DM
- RA
- immunocompromise including steroid meds and concurrent neoplasm
What is Neer’s Classification?
A way to classify different proximal humerus fractures.
What neurovascular structures tend to be injured with proximal humerus fractures?
- Circumflex humeral artery
- Axillary nerve
- Fractures of the clavicle make up __-__% of all fractures in the appendicular skeleton.
- They are commonly related to _______ injury/ direct ________.
- 5-10%
- FOOSH injury/ direct trauma
- What percentage of clavicle fractures occur at the distal portion?
- What percentage of clavicle fractures occur at the middle portion?
- What percentage of clavicle fractures occur at the proximal portion?
- Distal = 16.6%
- Middle = 81.3%
- Proximal = 2.1%
Why do we want to consider where a clavicle fracture has occured?
- Fragments can damage structures (subclavien artery, brachial plexus)
- Callus formation can also compress on neurovascular structures
- Fractures can heal out of alignment also causing impingement/compression
How would a patient with a clavicle fracture present during a physical examination?
- guarded shoulder motion
- supporting UE with contralateral UE (holding as if in shoulder sling)
- deformity
- extreme tenderness
- signs consistent with secondary brachial plexus injury (weakness/sensory dysfunction)
SC AND AC JOINT INJURIES
SC AND AC JOINT INJURIES
__% of shoulder girdle injuries happen at the SC joint. 80% of these are _____ or ____ related.
- 3%
- sport or MVC
What is the mechanism of SC joint injuries?
Shoulder forced anteriorly or medially (blow to posterior shoulder)
SC Sprains most common:
- Mild: ______ joint _______ ligament integrity compromise
- Moderate: ________ joint with _________ ligament compromise
- Severe: _______ joint with _________ ligament disruption
- stable, without
- subluxed, partial
- unstable, complete
How would a SC joint injury present?
- observable deformity
- local tenderness
- pain with shoulder motion (elevation especially)
__-__% of acute shoulder injuries are AC joint injuries. (up to 40% for athletes)
9-10%
What is the mechanism of AC joint injuries?
fall, sport or MVC related
What are the 2 ligaments that can be compromised during an AC joint injury? What kind of stability is compromised with each?
- AC ligament- compromised horizontal stability
- CC ligament- compromised vertical stability
The classification system for AC joint injuries is based on the extend of ________ displacement.
clavicular
How would a AC joint injury present?
- Shoulder weakness (AROM or resistive)
- Local tenderness (+ AC joint palpation test)
- Possible deformity
- Possible swelling
- Pain with shoulder movement
How many AC separation types are there?
6
- Type I AC separation involves a sprain of the ___ ligament.
- Type II AC separation involves rupture of the ___ ligaments and sprain of the ____ ligaments.
- AC
- AC, CC
What does treatment of type I and II AC joint separations look like?
- typically brief period of immobilization/sling use (1-2 weeks)
- gentle ROM, isometric exercises
- progression to scap stab exercises