Description

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

 


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