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11 Cards in this Set
- Front
- Back
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What is the most common type of humerus fracture?
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Proximal (45%)
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How is the proximal humerus situated relative to the epicondylar axis?
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Retroverted 35 to 40 degrees
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Name the four osseous segments of the proximal humerus
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1. Humeral head
2. LT 3. GT 4. Humeral shaft |
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What is the major blood supply to the proximal humerus?
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Anterior and Posterior Humeral Circumflex arteries
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What are the deforming forces on the osseous segments?
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1. GT displaced superiorly/posteriorly by supraspinatus and external rotators
2. LT medially by subscapularis 3. Shaft medially by pec major 4. Deltoid insertion causes abduction of proximal fragment |
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A part of the proximal humerus is defined as displaced by what 2 criteria?
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1. > 1 cm fracture displacement
2. > 45 degrees of angulation |
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Name classification scheme for proximal humerus fractures
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Neer
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85% of proximal humerus fractures are minimally displaced or nondisplaced...
True or False |
True
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How will you treat a minimally displaced (one-part) proximal humerus fracture?
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Sling immobilization
Frequent radiographs for f/u Pendulum exercises AROM 6 weeks post injury |
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What is the GT fracture criteria for ORIF with/without rotator cuff repair?
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5 to 10 mm displacement (5 mm for superior translation)
Locking plate |
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What approach is the workhorse of the shoulder and allows for an extensile approach to the proximal humerus?
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Delto-pectoral approach
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