What is normal glenoid version?
Normal glenoid version in most studies has been reported close to 0°, sometimes with slight anteversion but more often slight retroversion with values typically less than 10° in either direction [1–8].
What is glenoid Retroversion?
Glenoid retroversion is the abnormal posterior angulation of the articular surface of the glenoid of the scapula and is of importance as it predisposes to posterior glenohumeral instability and tears of the posterior labrum.
What is the glenoid?
The head of the upper arm bone (humeral head) rests in a shallow socket in the shoulder blade called the glenoid. The head of the upper arm bone is usually much larger than the socket, and a soft fibrous tissue rim called the labrum surrounds the socket to help stabilize the joint.
What is a shoulder avulsion?
Humeral avulsion of the glenohumeral ligament (HAGL) is defined as an avulsion (tearing away) of the inferior glenohumeral ligament from the anatomic neck of the humerus. In other words, it occurs when we have disruption of the ligaments that join the humerus to the glenoid.
How do I check my glenoid version?
To measure glenoid version by using the Friedman method, a line is drawn down the long axis of the scapula, from the tip of the medial border of the scapula to the center of the glenoid. A line drawn perpendicular (90°) to this line is referred to as the line of neutral glenoid version.
What is a hypoplastic glenoid?
Glenoid hypoplasia, also known as glenoid dysplasia and dysplasia of the scapular neck, is a failure of ossification of the posteroinferior two-thirds of the glenoid. The scapula develops through intramembranous ossification at 8 ossification centers, two of which compose the glenoid.
Where is your glenoid?
shoulder
The glenoid, or socket joint of the shoulder, is surrounded by a fibrocartilaginous supporting structure called the labrum. Injuries to the tissue surrounding the shoulder socket can be caused by acute trauma or repetitive shoulder motions.
Is the glenoid a bone?
Part of the shoulder joint, the glenoid bone attaches to the scapula and has a articular cartilage coating. Due to the shallow nature of the bone, the glenoid also has a cartilaginous rim to help seal the humeral head into the cavity to create a secure and mobile joint.
What is the HAGL?
HAGL = Humeral Avulsion Glenohumeral Ligament. The capsule of the shoulder joint, which contains the Inferior Glenohumeral Ligament is ripped off the humerus with dislocation of the shoulder. This is an injury that is probably associated with a higher risk of recurrent dislocations than a Bankart tear.
What is glenoid anteversion?
(c) The degree of anteversion is demonstrated as the angle between the line perpendicular to the Friedman line (line of neutral glenoid version) and the line connecting the anterior and posterior glenoid margins.
Where is glenoid fossa?
The glenoid cavity (glenoid fossa) is a shallow, vertically elongate concavity that receives the head of the humerus.
What is the most common variation of the glenoid labrum?
the labrum attached to the glenoid rim and a flat/broad middle glenohumeral ligament is the most common “normal” variation. A cord-like middle glenohumeral ligament is often attaching a Buford complex will lead to painful and restricted external rotation and elevation.
How is glenoid-based bone loss assessed?
asess for glenoid-based, humeral-based, or combined bone loss on dedicated radiographic views or three-dimensional CT scan, with or without subtraction sequences. describe steps of the procedure verbally to the attending prior to the start of the case
What is glenohumeral arthritis of the shoulder?
Glenohumeral arthritis is degenerative joint disease of the shoulder characterized by damage to the articular surfaces of the humeral head and/or glenoid. Diagnosis is made radiographically with true AP shoulder (“Grashey”) and axillary lateral radiographs.
What is a cord-like Middle glenohumeral ligament?
A cord-like middle glenohumeral ligament is often attaching a Buford complex will lead to painful and restricted external rotation and elevation. includes the capsule, SGHL, coracohumeral ligament and long head biceps tendon that bridge the gap between the supraspinatus and the subscapularis.