What is bigliani classification?
What is bigliani classification?
In 1986, Bigliani and colleagues [3] were the first to classify acromial morphology and correlate it with rotator cuff tears. They described three types of acromion: Type I (flat), Type II (curved), and Type III (hooked) (Fig. 1).
What is bigliani?
The shape of the acromion had been initially divided into three types (which was known as the Bigliani classification) 3, to which a fourth has been added 2. They are used as a standardized way of describing the acromion, as well as predicting to a degree the incidence of impingement.
What is Type 2 acromion process?
What is a type II 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 1 acromion process?
Bigliani et al5 classified the shape of the acromion on supraspinatus outlet (or lateral) radiographs into three distinct types: type I represents a flat, type II a curved and type III a hooked undersurface of the acromion (Fig. 1a).
Is type 2 acromion serious?
A person with a type II or type III acromion would be at a higher risk of impingement due to the narrowing of the acromiohumeral gap and bursal space. In addition to the above, with advancing age people tend to develop a bone spur on the front and side of the acromion.
What is acromion process?
The acromion process is the origin of the acromial head of the deltoid muscle, which courses distally and covers the scapular neck. Fractures of the acromion process or, more commonly, osteotomy of the acromion needed to expose the scapular neck and shoulder joint, require surgical repair.
What is a Type 11 acromion?
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.
How common is Type 2 acromion?
The overall distribution of the acromion shape according to Bigliani et al. (1986) was type I in 25% of individuals, type II in 61%, and type III in 14%.
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.
How is type 2 acromion treated?
Conservative treatment (rest, ice packs, nonsteroidal anti-inflammatory drugs and physical therapy) is usually sufficient. Some patients benefit from steroid injection, and a few require surgery.
What is the glenoid process?
This cavity forms the glenohumeral joint along with the humerus. This type of joint is classified as a synovial, ball and socket joint. The humerus is held in place within the glenoid cavity by means of the long head of the biceps tendon….
| Glenoid fossa | |
|---|---|
| FMA | 23275 |
| Anatomical terms of bone |
What is Bigliani classification of acromion morphology?
Bigliani classification of acromion morphology Bigliani classification URL of Article The shape of the acromion had been initially divided into three types (which was known as the Bigliani classification) 3, to which a fourth has been added 2.
How many types of Bigliani classification are there?
Bigliani classification URL of Article The shape of the acromion had been initially divided into three types (which was known as the Bigliani classification) 3, to which a fourth has been added 2. They are used as a standardized way of describing the acromion, as well as predicting to a degree the incidence of impingement. Classification
What is the AO Classification of glenoid fractures?
The AO classification of glenoid fractures is widely used. Three fracture types that involve the glenoid articular segment and fossa are identified. F0 = fracture of the articular segment, not involving the glenoid fossa; F1 = simple glenoid fossa fractures; and F2 = multi-fragmentary glenoid fossa fractures.
What is the prevalence of glenoid fossa incongruity?
The glenoid fossa is involved in approximately 10% of all scapular fractures. Glenoid fossa incongruity is surprisingly well tolerated. Surgery is recommended when 20% or more of the anterior glenoid fossa is involved. Glenoid rim fractures often lead to chronic shoulder instability.