What does Type II acromion mean?

A type II acromion is considered to be one that in which the acromion has a down-sloping character. • A type III acromion is considered to be present when there is significant downward hooking of the acromion consequently greatly restricting the caliber of the subacromial arch area.

What is type II Acromial morphology?

The type II acromion is more curved and downward dipping, and the type III acromion is hooked and downward dipping, obstructing the outlet for the supraspinatus tendon.3 Cadaveric studies have shown an increased incidence of rotator cuff tears in persons with type II and type III acromions.2,3.

Are you born with Type 2 acromion?

Basically there are 3 types of acromions. Type I – normal acromion, Type II – a variation of angle of the acromion with which you were born with. Type III – acromion is curved down impinging the supraspinatous tendon.

What shape acromion process can lead to impingement?

An impingement process tends to occur in several ways: A very prominent acromion; typically it is a type 2 or type 3. People with a flat type 1 acromion rarely see an orthopedist for shoulder pain. As the person ages, the acromion will often enlarge where it attached to the coracoacromial ligament.

What is a Type 11 Acromion?

Acromion is a lateral process out of the shoulder blade of the shoulder joint. On x-rays, it has been classified into four types. Type II is the most common type and is gradual curve along the head of the shoulder. Type II acromion may occasionally cause impingement of the shoulder joint.

What is a Type 11 acromion?

What is a Type 4 acromion?

In this report, a fourth type of acromion is described in which the undersurface is convex near its distal end. The frequency of a type 4 acromion in the normal population is discussed based on a retrospective review of the MR examinations of 30 patients that originally were read as normal.

Does impingement go away?

Recovery time Shoulder impingement usually takes about three to six months to heal completely. More severe cases can take up to a year to heal. However, you can usually start returning to your normal activities within two to four weeks.

Do I need surgery for shoulder impingement?

While most cases of shoulder impingement can be treated without surgery, sometimes it is recommended. A doctor may suggest surgery if nonsurgical treatment options do not adequately relieve shoulder pain and improve range of motion. Surgery can create more room for the soft tissues that are being squeezed.

Can you see impingement on MRI?

MRI appearance of intrinsic impingement is varied and includes labral and rotator cuff pathology. The infraspinatus tendon is commonly injured, especially in patients under age 30, with MRI findings ranging from undersurface tears to complete tears.

Does shoulder impingement need surgery?