Ac Joint Grade 1

Tossy classification tossy et al corr 28.

Ac joint grade 1. 111 119 1963 grade 1. Grade ii is a partial dislocation of the ac joint with a complete disruption tear of the ac joint and a partial disruption of coracoclavicular ligament. This will normally be 7 14 days for grades 1 and 2 sprains. Ac joint injuries represent nearly half of all athletic shoulder injuries often resulting from a fall on to the tip of the shoulder with the arm in adduction or a direct blow to the acromion with the humerus adducted as in collision in high impact contact sports injury may occur as a consequence of throwing sports or chronic.

No deformity visible clinically or on x ray grade 2. This is a grade 1 or grade 2 ac joint injury and a quick and full recovery can be expected in a matter of. Grade i is slight displacement of the joint and a badly stretched or partially torn ac ligament. Grade 2 involves rupture of the ac ligament or acromioclavicular ligament.

Trauma trauma is a physical external injury. The clavicle which is known as the collar bone and the acromion process which is found on the shoulder blade. 2 moderate a grade 2 injury will involve complete rupture of the acromioclavicular ligament and. The rockwood classification 1998 is the most common classification system in use for acromioclavicular joint injuries 3.

What causes ac joint sprain. Grade 1 is a simple sprain to the ac joint with minor damage to the ligament and no separation of bones. The ac gap is 5 mm. Strain and contusions of ac joint.

The acromioclavicular joint also known as the ac joint is that bony bump you notice and feel on top of your shoulder. When can i start ac joint sprain exercises. Localised pain swelling and deformity. It is formed by 2 bones.

Coraco clavicular distance increased as compared to normal. Mobility exercises can begin only once shoulder movement is pain free. It has the normal separation of 4 mm. Grade 4 involves posterior displacement or displacement backward.

Grade 3 injuries are more frequently being treated with conservatively without surgery and will require an even longer healing period. Acromioclavicular joint disruption mechanism of injury. Grades i and ii never require. An ac joint injury will either be a minor injury grade 1 or grade 2 or a major injury grade 3 grade 4 or grade 5.

Return to play up to 3 weeks. This well known 6 type system is a modification of the earlier 3 class classification system described by allman 1967 2 and tossy 1963. Grade 3 rupture of both ac and cc or coracoclavicular ligaments which often results in an upward displacement of the clavicle bone. Although the joint has been injured the x ray remains normal in a grade 1 injury the capsule also known as the acromioclavicular ligaments have been damaged at a microscopic level and visible lengthening or stretching of the structure is not apparent.

It takes into account not only the acromioclavicular joint itself but also the coracoclavicular ligament the deltoid and trapezius. An athlete with a grade 1 injury of the ac joint will experience tenderness and discomfort palpation and movement of the joint. A grade 1 separation is really not a separation at all and can be more accurately described as a grade 1 injury. X rays show one half separation of the ac joint ie clavicle displaced cephalad by one half the depth of the ac joint.