What motion does the coracoclavicular ligament restrict?
external rotation
Various stretching procedures have been reported for the coracohumeral ligament. Burkart et al[11] reported that the coracohumeral ligament restricted the range of motion of external rotation of the glenohumeral joint at 0 degrees of elevation and 50 degrees of abduction.
What does the coracoclavicular ligament limit?
The Coracoclavicular ligaments run from the coracoid process to the underside of the clavicle, near the AC Joint. These ligaments contribute to horizontal stability, making them crucial for preventing superior dislocation of the AC Joint. Both portions also limit the rotation of the scapula.
What is the importance of the Coracoacromial ligament?
The coracoacromial ligament is a strong triangular ligament between the coracoid process and the acromion. It protects the head of the humerus. Its acromial attachment may be repositioned to the clavicle during reconstructive surgery of the acromioclavicular joint (shoulder joint).
What are the attachments of coracoclavicular ligament?
The coracoclavicular ligament is a ligament of the shoulder. It connects the clavicle to the coracoid process of the scapula. The left shoulder and acromioclavicular joints, and the proper ligaments of the scapula. Glenoid fossa of right side.
What is a Coracoclavicular joint?
Coracoclavicular joint (CCJ) is a rare anomalous joint occasionally found between the coracoid process of scapula and the conoid tubercle of clavicle. The articulation has been extensively studied by means of anatomical, osteological and radiological investigations.
What is coracoacromial ligament release?
Release of the CA ligament resulted in increased anterior and inferior translation of the internally and externally rotated glenohumeral joint. The CA ligament has previously been implicated only as an important soft tissue structure that contributes to rotator cuff pain.
What type of joint is coracoclavicular?
The acromioclavicular (AC) joint is the articulation between the two bones of pectoral girdle; the clavicle and scapula. It is a plane synovial joint, with flat articular surfaces which are approximately the same in size….Acromioclavicular (AC) joint.
| Type | Synovial plane joint; multiaxial |
|---|---|
| Blood supply | Thoracoacromial artery, suprascapular artery |
Is Coracoclavicular joint synovial?
The coracoclavicular joint represents a true synovial articulation between the conoid tubercle of the clavicle and the superior surface of coracoid process of the scapula. This accessory articulation may be found either unilaterally or bilaterally.
Where is the Coracoclavicular joint?
Where is the coracoacromial ligament located?
The coracoacromial ligament is a strong triangular band, extending between the coracoid process and the acromion. It is attached, by its apex, to the summit of the acromion just in front of the articular surface for the clavicle; and by its broad base to the whole length of the lateral border of the coracoid process.
Is coracoclavicular joint synovial?
Is the costoclavicular ligament capsular?
Ligaments and joint capsule The joint is surrounded by a fibrous joint capsule which is thickened on its anterior and posterior aspects but loose superiorly and inferiorly. The articular surfaces are lined with fibrocartilage.
Where does costoclavicular ligament attach?
The costoclavicular ligament binds the inferior medial clavicle (via the rhomboid fossa) to the first costal cartilage and the adjacent end of the first rib. It is composed of an anterior lamina and posterior lamina which are usually separated by a bursa.
What is the coracoclavicular ligament?
The coracoclavicular (CC) ligament is the major vertical stabilizing factor of the acromioclavicular joint. The coracoclavicular ligament can be divided into two parts: the more medial conoid ligament and the more lateral trapezoid ligament . The integrity of the CC ligament is inferred on plain radiographs by the coracoclavicular distance.
What is the function of the acromioclavicular ligament?
The function of the acromioclavicular and coracoclavicular ligaments as anterior-to-posterior and superior-to-inferior stabilizers, respectively, displacement resistance of the lateral clavicle is significantly more complex. The primary restraint comes from the conoid portion of the coracoclavicular ligament.
How does anatomical orientation affect the loading dynamics of the coracoclavicular ligament?
[27][28]Further, the anatomical orientation of the ligamentous fibers which compose the coracoclavicular ligament alter its loading dynamics and its ability to respond to external loads and subsequent risk of rupture during injury.[26]
What does the conoid ligament do in the clavicle?
Action. The conoid ligament also gives the primary restraint to anterior clavicular rotation. the conoid ligament mainly resists the larger loads and afterwards both the acromioclavicular and conoid ligaments provide combined resistance to small loads in superior clavicular rotation,.