what is the coracoclavicular ligament

The coracoclavicular ligament includes two parts:

• Conoid.
• Trapezoid, which are combined posteriorly and often separated by a bursa.
• The conoid ligament is an inverted cone-shaped fibrous band. ...
• The trapezoid ligament stretches from upper surface of the coracoid process to the trapezoid line on the inferior surface of lateral end of the clavicle and is a horizontal fibrous ...

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Full Answer

What is coracoclavicular (cc) ligament injury?

Coracoclavicular (CC) ligament injury is common with shoulder trauma. It is considered part of the spectrum of acromioclavicular joint injuries 2 and is not often an isolated injury. It is also often injured with clavicular fractures .

What connects the clavicle to the coracoclavicular ligament?

It connects the clavicle to the coracoid process of the scapula . The coracoclavicular ligament connects the clavicle to the coracoid process of the scapula. It it is not part of the acromioclavicular joint articulation, but is usually described with it, since it keeps the clavicle in contact with the acromion.

What is the difference between the conoid and coracoclavicular ligament?

conoid ligament the posteromedial portion of the coracoclavicular ligament, extending from the coracoid process to the inferior surface of the clavicle. coracoclavicular ligament a band joining the coracoid process of the scapula and the acromial extremity of the clavicle, consisting of two ligaments, the conoid and trapezoid.

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.

Where is coracoclavicular ligament located?

shoulderThe coracoclavicular ligament is a ligament of the shoulder. It connects the clavicle to the coracoid process of the scapula.

What ligaments make up the coracoclavicular ligament?

It consists of two fasciculi, called the trapezoid and conoid ligaments: The Trapezoid Ligament (ligamentum trapezoideum), the anterior and lateral fasciculus, is broad, thin, and quadrilateral: it is placed obliquely between the coracoid process and the clavicle.

What is coracoclavicular ligament reconstruction?

The anatomic coracoclavicular ligament reconstruction (ACCR) is a surgical procedure to address acriomioclavicular joint instability. The coracoclavicular ligaments are reconstructed using a semitendinosus allograft passed beneath the coracoid and through bone tunnels in the clavicle.

What joint does the coracoclavicular ligament support?

the AC JointCoracoclavicular Ligaments: Composed of the conoid and trapezoid ligaments (which do not actually come in contact with the joint). This combined ligament is the primary support ligament of the AC Joint. The Coracoclavicular ligaments run from the coracoid process to the underside of the clavicle, near the AC Joint.

What are the consequences of rupture of coracoclavicular ligament?

Injuries to the acromioclavicular joint and coracoclavicular ligaments are common. Many of these injuries heal with nonoperative management. However, more severe injuries may lead to continued pain and shoulder dysfunction.

How do you test for coracoclavicular ligament?

Assesses integrity of the acromioclavicular and coracoclavicular ligaments. Grasp the proximal forearm with one hand as you place your other hand on the mid-clavicle. Attempt to distract the acromion process from the clavicle by applying a downward force to the arm directed along the longitudinal axis of the humerus.

What does the Coracoacromial ligament do?

The coracoacromial ligament (CAL) connects the acromion and coracoid process of the scapula, forming an osseoligamentous static restraint to superior humeral head displacement.

What is the CPT code for Coracoclavicular ligament repair?

Acromioclavicular Joint Reconstruction 23552 | eORIF.

How do you measure Coracoclavicular distance?

a Coracoclavicular distance is measured by vertical distance between the anterior–inferior border of the clavicle and the superior border of the coracoid process on standard anteroposterior view of both shoulders.

How long does it take for a torn ligament in the shoulder to heal?

Usually, mild rotator cuff tears or sprains will heal within four weeks. In other severe cases, the recovery might take 4 to 6 months or even longer based on several factors such as the severity of the tear, age, and other health complications.

How do you know if you tore your AC joint?

Symptoms of an AC joint injuryShoulder or arm pain.A visible bump, bruise, or swelling on your shoulder.Limited shoulder mobility.Weakness in your shoulder or arm.Pain when lying on the affected side.A popping sound when you move your shoulder.

What is the fastest way to heal a separated shoulder?

Most people will recover from a separated shoulder within two to 12 weeks without surgery. Non-surgical treatments include the following: Use of a sling to keep the shoulder in place while healing. Ice packs and medications such as ibuprofen, naproxen, aspirin or acetaminophen to reduce pain.

What are the names of the two sections of the coracoclavicular ligament?

The coracoclavicular ligament may be referred to as a complex because it is composed of two parts, the conoid and trapezoid ligaments.

What type of joint is the coracoclavicular joint?

Coracoclavicular joint is an anomalous diarthrosis formed between the conoid tubercle of the clavicle and the superior surface of the horizontal part of the coracoiod process of the scapula.

What is Interclavicular ligament?

Anatomical Parts The interclavicular ligament is a flattened band, which varies considerably in form and size in different individuals, it passes in a curved direction from the upper part of the sternal end of one clavicle to that of the other, and is also attached to the upper margin of the sternum.

What does the AC joint consist of?

What is the AC joint? The acromioclavicular, or AC, joint is a joint in the shoulder where two bones meet. One of these bones is the collarbone, or clavicle. The second bone is actually part of the shoulder blade (scapula), which is the big bone behind the shoulder that also forms part of the shoulder joint.

What are the two ligaments that make up the coracoclavicular ligament?

The coracoclavicular ligament is in fact two ligaments, the trapezoid and the conoid. The trapezoid and the conoid ligaments have identical dimensional, viscoelastic behavioral and structural characteristics, regardless of their morphologic differences.

How to evaluate coracoclavicular ligament?

The stability of the conoid portion of the coracoclavicular ligament might be evaluated by positioning the patient in a side lying position on the untouched side with the hand resting against the lower back. The inspector supports the clavicle and pulls the medial border of the scapula far from the chest wall. Pain in either case in the space of the ligament (anteriorly under the clavicle between the outer one-third and inner two-thirds) constitutes a favorable test.

Which ligaments provide the primary restraint to anterior clavicular rotation?

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,.

Which ligament gives restraint?

Whereas the conoid ligament gives resistance to the larger loads, For superior displacements, once again with smaller loads, the acromioclavicular ligaments give restraint.

Which ligament is responsible for linking the scapula and scapula?

The coracoclavicular ligament assists to link scapulohumeral activity and scapulothoracic activity, by the way of its attachments to the clavicle and scapula, and their respective connection to the axial skeleton and upper body.

Which ligament is oriented toward the clavicle?

Via a more anterior and lateral position that starts at the angle of the coracoid, ends posterior to the pectoralis minor tendon attachment and courses in the direction of its tip, the trapezoid ligament is oriented toward the clavicle in a superior, anterior, and moderately lateral direction to attach at the trapezoid line on the inferior clavicle.

Where is the trapezoid ligament?

The trapezoid ligament stretches from upper surface of the coracoid process to the trapezoid line on the inferior surface of lateral end of the clavicle and is a horizontal fibrous band. Suspending the weight of the scapula and upper limb from clavicle is largely responsiblility of the coracoclavicular ligament.

What is the purpose of the coracoclavicular ligament?

The coracoclavicular ligament serves to connect the clavicle with the coracoid process of the scapula. It does not properly belong to the acromioclavicular (AC) joint articulation, but is usually described with it, since it forms a efficient means of retaining the clavicle in contact with the acromion.

Which ligament connects the clavicle to the scapula?

The left shoulder and acromioclavicular joints, and the proper ligaments of the scapula. Glenoid fossa of right side. The coracoclavicular ligament serves to connect the clavicle with the coracoid process of the scapula.

What are the two ligaments that make up the AC joint?

It consists of two fasciculi, the trapezoid ligament in front, and the conoid ligament behind. There is very little movement at the AC joint . These ligaments are in relation, in front, with the subclavius and deltoideus; behind, with the trapezius.

Which ligament is the strongest stabilizer of the AC joint?

The coracoclavicular ligament is the strongest stabilizer of the AC joint. This ligament is very important in the transmission of weight of the upper limb to the axial skeleton.

What is the role of the coracoclavicular ligament?

The coracoclavicular (CC) ligament serves as the primary support for acromioclavicular (AC) ligament. Together, these stabilize the acromioclavicular joint, which is one of the major shoulder joints. To better understand the role of the coracoclavicular ligament, it is necessary to understand the anatomy of the AC joint. The AC joint serves a vital role as a synovial plane joint , which aids in the stability of the shoulder girdle [1]. The primary support of the synovial plane joint derives from two ligaments, the acromioclavicular ligament, and the coracoclavicular ligament. These ligaments further subdivide into intrinsic and extrinsic ligaments, the coracoclavicular ligament being the extrinsic ligament. Although the coracoclavicular ligament does not directly cross the AC joint, it helps to maintain the proper anatomical relationship of the acromion to the clavicle.

Which ligament is anterior to the coracoclavicular ligament?

The other part of the coracoclavicular ligament, the trapezoid ligament, is typically anterior-lateral to the conoid ligament. It is quadrilateral in shape, as its name implies, and is thinner than the conoid ligament. Inferiorly the trapezoid ligament attaches to the posterior-superior aspect of the coracoid process, coming in contact with the anterior part of the conoid ligament. Considering the spacial relationship between the trapezoid and the conoid ligaments, moving from the inferior attachment to the superior attachment, one may see that the trapezoid ligament angles anterolaterally away from the conoid ligament, while the conoid ligament is nearly vertical. Finally, the trapezoid ligament attaches at the trapezoid line on the inferior surface of the clavicle. A bursa separates the trapezoid ligament and the conoid ligament.

What is type VI clavicle?

Type VI—Com plete disruption of acromioclavicular ligament. Coracoclavicular ligament completely torn, the coracoclavicular interval does not exist - partially intact or absent muscle attachments. The clavicle is displaced inferiorly relative to the acromion process.

What type of ligament is disrupted up to 100%?

Type III—Complete disruption of AC. Coracoclavicular ligaments disrupted up to 100%, though are intact and remain attached to the periosteal sleeve — a high probability of muscle detachment. The clavicle appears mildly is displaced superiorly.

What causes AC joint dislocation?

AC joint injuries commonly result from a direct fall onto the shoulder. Trauma, whether direct or indirect, may lead to dislocation or failure of the AC joint. The CC ligament helps to oppose the separation of the joint and maintain the approximation of the acromion and clavicle. If one component of the coracoclavicular joint suffers disruption, the other component acts as a fulcrum for the coracoid process to rotate under the clavicle. In the setting of injury to the AC joint, these sites of injury act for the basis of the multiple acromioclavicular joint dislocations that may occur. Rupture of the CCL occurs in grade III to VI injuries according to Rockwood Classification. [25]

What is the treatment for acromioclavicular ligament injury?

Management with sling immobilization, rest, ice, and physical therapy is typical. Currently, Type III injuries are managed on an individual basis, as there are no consensuses for operative management. Those with IV-VI injuries are managed surgically with one of the methods discussed below.

What muscles are involved in the shoulder girdle?

Major muscles that cause movement around these structures include the serratus anterior, trapezius, teres major, rhomboid major, rhomboid minor, and triceps brachii (long head). Although other muscles may be included in this list, each muscle listed attaches directly to the scapula and obtains additional mechanical stability, restriction in movement, from the coracoclavicular ligament.

What is Lockwood's ligament?

Lockwood's ligament a suspensory sheath supporting the eyeball.

Which ligament connects the neck of a rib to the transverse process of a vertebra?

costotransverse ligament three ligaments (lateral, middle, and superior) that connect the neck of a rib to the transverse process of a vertebra.

Which ligament holds the roots of the teeth in place?

pectineal ligament a strong aponeurotic lateral continuation of the lacunar ligament along the pectineal line of the pubis. periodontal ligament the connective tissue structure that surrounds the roots of the teeth and holds them in place in the dental alveoli. Petit's ligament uterosacral ligament.

What is the lateral expansion of the lateral edge of the rectus abdominis muscle which attache?

Henle's ligament a lateral expansion of the lateral edge of the rectus abdominis muscle which attaches to the pubic bone. inguinal ligament a fibrous band running from the anterior superior spine of the ilium to the spine of the pubis; called also Poupart's ligament.

What is the fibrous layer of a joint capsule?

capsular ligament the fibrous layer of a joint capsule.

What is accessory ligament?

accessory ligament one that strengthens or supports another. arcuate l's the arched ligaments that connect the diaphragm with the lowest ribs and the first lumbar vertebra. broad ligament of uterus a broad fold of peritoneum supporting the uterus, extending from the side of the uterus to the wall of the pelvis.

What ligaments are inside the capsule?

intracapsulary l's ligaments of the joint capsule that are inside the capsule.

What are the acromio-clavicular ligaments?

Tears of the acromio-clavicular ligaments are the most common form of shoulder injuries. They are most commonly associated with young, athletic adults involved in throwing sports, collision sports, and overhead exercises such as extreme strength training.

Which ligaments are responsible for binding the shoulder blade and collarbone?

The acromion-clavicular ligament and coracoclavicular ligament support the acromion-clavicular joint. These ligaments are located near the shoulder at the outside end of the collarbone. They are responsible for binding together the collarbone and shoulder blade. These ligaments are very strong and it requires a lot of force to tear the acromio-clavicular ligaments.

What are the four bones that connect the shoulder blade?

The scapula (triangular shoulder blade), called the scapula. The acromion (bony knob at the top of the scapula), called the acromion. The clavicle (collarbone) The sternum (breastbone) These four bones are connected by a series of ligaments. Shoulder ligament tears typically occur between the acromion and collarbone, ...

What sports can cause acromioclavicular sprains?

People who participate in contact sports or high velocity activities such as jet skiing, alpine skiing, rugby, football, or wresting most commonly experience acromio-clavicular joint sprains. Athletes in their 20’s and 30’s are more commonly affected, with men twice as likely to experience this form of injury 2 .Car accidents and bicycle falls can also result in torn acromio-clavicular ligaments.

How to repair AC joint?

Foods rich in antioxidants can reduce cellular stress on the AC joint, helping to accelerate repair. Maintaining a healthy diet and/or taking quality supplements is an important part of the recovery process.

Which ligament is torn?

Both the coraco-clavicular and the acromio-clavicular ligament are completely torn. There is obvious separation of the collarbone.

Is grade 3 clavicle displacement?

Like Grade 3 and 4, except there is great exaggeration of clavicle vertical displacement away from the scapula-coraco-clavicular interspace, up to 300% more than normal, with subcutaneous positioning of the clavicle.

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