Orthoteers homepage Advertise on Orthoteers
Orthoteers Junior Orthoteers Orthopaedic Biomechanics Orthopaedic World Literature Society Educational Resources Image Gallery About Orthoteers Orthoteers Members search

Clavicle fractures

Incidence = 4% of all fractures (Nordqvist & Petersson, 1994). Direct blow 94% cases.

Anatomy -  Middle 1/3 changes from prism to flat shape. Weakest point. Supraclavicular nn. cross it. Ulnar n crosses 1st rib under prox 1/3 clavicle. Clavicle anchored to scapula by CC and AC ligaments, and to trunk by SC and CC ligaments.

Function – osseous strut, maintaining width of shoulder. Protects NV structures and assists respiration with its ligamentous attachment to 1st rib and sternum. Angles 30 deg up and 35 deg back and rotates 50 deg on its axis when arm in full abduction.

CLASSIFICATIONS

1. Allman (1967):

Classified according to location- 

  • Group 1 = Midshaft fractures (80%)
    o 1A - undisplaced
    o 1B - displaced
    o 1C - comminuted
  • Group 2 = lateral-end fractures (15%) subclassified  (Neer 1984) in relation to CC ligaments:
    o Type 1 -minimal displacement, # usually between trapezoid and conoid.
    o Type 2 – medial to one or both CC – displaced #
    o Type 3 – intra-artic ACJ #  with ligamentous rupture. (lat to CC)
  • Group 3 = medial fractures (5%)


This is a preview of the site content. To view the full text for this site, you need to log in.
If you are having problems logging in, please refer to the login help page.


© 2005-2007 Orthoteers.co.uk - last updated: 12 July 2007Medical Merketing and SEO by Blue Medical 
Biomet supporting orthoteersThe British Orthopedic Association supporting OrthoteersOrthoteers is a non-profit educational resource. Click here for more details
Brachial plexus Injury
Clavicle fractures
Dislocations of the Acromioclavicul...
Frozen Shoulder
Os acromiale
Rotator Cuff Disease
Scapula fractures
Shoulder biomechanics
Shoulder anatomy
Shoulder Arthroscopy
Shoulder Instability
Hide Menu