Tossy et al classified traumatic separation of the acromioclavicular joint. The authors are from Northwestern University.
Parameters:
(1) injury to the capsule and acromioclavicular ligament
(2) injury to the conoid and trapezoid ligaments (coracoclavicular)
(3) radiographic appearance
(4) deformity
Injury to the Capsule and Acromioclavicular Ligament |
Injury of the Conoid and Trapezoid Ligaments |
X-Ray Appearance |
Deformity |
Grade |
none |
none |
normal |
none |
0 |
strain or contusion |
none |
normal |
none |
1 |
rupture |
partial tear |
separation with clavicle displaced cephalad about half of normal superior to inferior depth |
mild to moderate |
2 |
rupture |
complete rupture |
separation more than half of the normal depth |
marked |
3 |
where:
• A Grade 1 injury is caused by a mild force and is referred to as a sprain. It features pain, swelling and tenderness localized to the joint itself.
• A Grade 2 injury is caused by moderate force and may be referred to as a subluxation. It is associated with pain, swelling, tenderness and an inability to lift strongly.
• A Grade 3 injury is caused by a severe force and may be referred to as a dislocation. It is associated with severe disability and pain.
Grade |
Management |
1 |
sling and early rehabilitation |
2 |
shoulder spica with clavicle strap |
3 |
open repair and external support |
Specialty: Surgery, orthopedic, Emergency Medicine, Critical Care, Surgery, general