ligaments of clavicle

Andrew Lim The superior surface of the clavicle has a smooth appearance. Anatomy terms allow us to describe the body and body motions more precisely. 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.It consists of two fasciculi, the trapezoid ligament in front, and the conoid ligament behind. The clavicle can be palpated along its length, and can is visible under the skin in a thin person. The acromial or lateral end of the clavicle has an oval facet for articulation with the acromion of the scapula to form the acromioclavicular joint. This article will discuss the anatomy of the clavicle. The shaft (or diaphysis, or body) refers to the middle part of any long bone. The clavicle is located at the top of the thoracic wall, just below the neck and to the sides of the sternum. Blood supply Suprascapular and thoracoaromial arteries Nerve supply Lateral pectoral and axillary nerve Subcutaneous lateral supraclavicular nerve. Lee et al. This is useful information, as the specific location of pain around body structures helps doctors and other health care providers to figure out what the cause of the patient’s pain is. They are responsible for binding together the collarbone and shoulder blade. The collarbone is a large doubly curved long bone that connects the arm to the trunk of the body. Injuries to these ligaments can cause clavicle instability. The clavicle is an S-shaped bone that is anchored by strong ligamentous attachments on both its medial and lateral ends. The joint is also reinforced by two accessory ligaments: Looking for a new way to learn and revise? There are five main ligaments within the shoulder complex. In contrast, the inferior surface of the clavicle is quite rough and has many prominent lines, indicating sites where muscle and ligaments may attach to the bone. Posterior borde r – is convex posteriorly and provides attachment to trapezius muscl e. It enables slight gliding movement about the shoulder region. This bone is an important part of the skeletal system since it plays an essential role in everyday functional movement, serving as the connection between the axial skeleton and the pectoral girdle. Due to the clavicle’s structure, there are only two planar diarthrosis articulations that can be found. The shaft of the clavicle serves as an origin site for several muscles, including the deltoid, trapezius, subclavius, pectoralis major, and sternohyoid. The medial end also gives attachment to the following structures: The shaft (or diaphysis, or body) refers to the middle part of any long bone. Watch Queue Queue They are responsible for binding together the collarbone and shoulder blade. It has a rounded medial end and a flattened lateral end. The Young Orthopod 11,759 views Author information: (1)Department of Orthopaedic Surgery, Chang Gung Memorial Hospital, Taoyuan, Taiwan. Conoid and trapezoid ligaments anchor the clavicle to the coracoid process, suspending the free limb and scapula from the clavicle Movements There is limited movement at this joint; the clavicle rotates on the acromion. Sternoclavicular joint ligaments stabilize the joint on its anterior and posterior surfaces. The acromion-clavicular ligament and coracoclavicular ligament support the acromion-clavicular joint. superiorly - the interclavicular ligament. It consists of two fasciculi, called the trapezoid ligament and conoid ligament. This synovial joint is important as it anchors the clavicle and scapula to the axial skeleton. The main functions of the clavicle include: The clavicle can be divided into three parts: a sternal (medial) end, a shaft, and an acromial (lateral) end. The next step is to define the anterior and posterior surfaces. Martin Lalama Most distal clavicle fractures are the result of a fall onto the distal clavicle or a direct blow to it. – The Coracoclavicular Ligament serves to connect the clavicle with the coracoid process of the scapula. These ligaments are very strong and it requires a lot of force to tear the acromio-clavicular ligaments. There are no muscular or ligamentous attachments on the middle section of the clavicle, and this supports the fact that most … Reading time: 8 minutes. Medially, it articulates with the manubrium of the sternum (breastbone) at the sternoclavicular joint. When facing forward, its medial part is convex, while its lateral aspect is concave. Clavicle fractures can be treated either: Grounded on academic literature and research, validated by experts, and trusted by more than 1 million users. This can include car accidents or contact sports, where the clavicle is exposed to strong impacts that can exert compressive forces on the bone. The first is the acromioclavicular joint, which is formed by the acromial end of the clavicle and the acromion of the scapula respectively. The tip is palpable below the outer end of the distal clavicle, through the anterior fibers of deltoid. Although the acromioclavicular articulation serves only a marginal role in protecting the coracoclavicular ligament graft, re … Ligaments usually are found near joints and perform a variety of functions, depending on the movements in the joint. The inferior aspect of the medial end is marked by a rough oval depression for the attachment of the costoclavicular ligament. Muscular attachments to the clavicle include the sternocleidomastoid, pectoralis major, and subclavius muscles proximally and the deltoid and trapezius muscles distally. Chen CH(1), Chen WJ, Shih CH. The costoclavicular ligament … Reviewer: These ligaments are located near the shoulder at the outside end of the collarbone. • Read more. The lateral end of the clavicle articulates with the acromion of the scapula at the acromioclavicular joint. The clavicle acts as a strut that keeps the scapula in place so that the upper limb can hang freely. Ventricles, meninges and blood vessels of the brain, how to learn the anatomy of the clavicle while playing games, Swelling, bruising and tenderness over the fractured area, Sagging of the shoulder in an anterior and inferior direction, Bones of the thorax (cadaveric dissection) - Prof. Carlos Suárez-Quian. Copyright © The sterno-clavicular joint is oriented somewhat posterior, lateral, and upward. These ligaments are very strong and it requires a lot of force to tear the acromio-clavicular ligaments. Injuries of the clavicle seriously compromise everyday activities. Instead of your doctor simply saying that “the patient knee hurts”, he or she can say that “the patient’s knee hurts anterolaterally”. Patients with distal clavicle fractures typically present with shoulder pain. Bony landmarks of the scapula - What structures attach to the coracoid process? Kim Bengochea, Regis University, Denver, Author: The distance to the center of the trapezoid tuberosity was 25.4 +/- 3.7 mm in males and 22.9 +/- 3.7 mm in females (P =.04). It is a ligament of the sternoclavicular joint. Each end has unique bony landmarks, depending whether the superior or inferior surface of the bone is viewed. It suspends the weight of the upper limb from the clavicle. Its medial end articulates with the manubrium of the sternum at the sternoclavicular joint. Kenhub. However the joint enables a variety of limited movements of the arm, including: Like the acromioclavicular joint, the sternoclavicular joint is surrounded by an articular cartilage capsule, but with a fibrocartilage articular disk inside that creates a clavicular and a sternal synovial cavity. The costoclavicular ligament unites the superior surface of the first rib and its costal cartilage with the inferomedial aspect of the clavicle. Joint capsules are strengthened by reinforcing ligaments, limited in their amplitude by inhibiting ligaments, and directed in their movements by directing ligaments. and grab your free ultimate anatomy study guide! The IC ligament connects the superomedial aspect of each clavicle with the capsular ligaments and the upper part of the sternum ( Fig. 10-5 ). This strong thick ligamentous band consists of two sheaths (laminae) which differ in the direction of their fibers. The clavicle is situated directly above the first rib. So if the trauma is caused by severe pain or severe deformity. 1,16 Direct impact occurs at the acromion, usually with the arm in an adducted position, and force is transmitted through the AC joint to the CC ligaments and the distal clavicle. It appears as a small flattened oval surface and enables the clavicle to articulate about the acromion of the scapula in the acromioclavicular joint. Operation with rupture of clavicle ligament. In this case, he will not put pressure on the acromion. Distal Clavicle Fracture Repair: Clinical Outcomes of a Surgical Technique Utilizing a Combination of Cortical Button Fixation and Coracoclavicular Ligament Reconstruction. Last reviewed: October 29, 2020 From infancy, the articular cartilage starts off as hyaline cartilage, but soon develops into fibrocartilage (at the scapula acromion and the clavicle acromial end at ages 17 and 24, respectively).The acromioclavicular ligament forms a strong connection between the clavicle and the scapula acromion, which restricts movement about the clavicle at its acromial end. The coracoclavicular (CC) ligament complex consists of the conoid and trapezoid ligaments, which insert on the posteromedial and anterolateral regions of the undersurface of the distal clavicle, respectively. Sternoclavicular joint ligaments stabilize the joint on its anterior and posterior surfaces. The anterior capsule is supported by anterior sternoclavicular ligaments, which provide support against anterior translation of the joint. The acromion-clavicular ligament and coracoclavicular ligament support the acromion-clavicular joint. The lateral end of the clavicle has landmarks that serve as the attachment sites for the coracoclavicular ligament: The coracoclavicular ligament is a very strong ligament that connects the clavicle with the coracoid process of the scapula. origin: knuckle of the coracoid process of the scapula; runs upward, forming an inverted cone as it widely attaches to the undersurface of the clavicle (around the conoid tubercle); trapezoid ligament Ligaments in the shoulder connect your humerus to your shoulder blade (also called the scapula). The area surrounding the joint gives attachment to the fibrous joint capsule. The next steps in treatment or work-up can then … Les ligaments coraco-claviculaires sont des éléments très forts et résistants qui, bien que ne se liant pas directement à l'acromion, confèrent une stabilité à l'articulation acromio-claviculaire. Like the acromioclavicular joint, the sternoclavicular joint is surrounded by an articular cartilage capsule, but with a fibrocartilage articular disk inside that creates a clavicular and a sternal synovial cavity. The coracoclavicular ligament can be divided into two parts, the more medial conoid ligament and trapezoid ligament.. conoid ligament. Such an intervention is quite effective. have evaluated the geometric … Acromial end of clavicle . The anterior aspect of the right clavicle....First of all, you have to find the lateral and medial end. Clavicle fractures can also arise during childbirth, when complications occur as the neonate passes through the birth canal. Anterior borde r- is concave anteriorly and provides attachment to deltoid muscle . These can be divided into three bony landmarks: A total of five muscles are attached to the clavicle, found distributed at either the lateral third or medial two thirds of the bone. In Experiment 2 (seven shoulders) the order was 1) the superior acromioclavicular ligament, 2) removal of 5 mm of the distal clavicle, and 3) the inferior acromioclavicular ligament. Please contact: participates in attaching the upper limb to the trunk, by being a part of the shoulder girdle; protects neurovascular structures underneath that supply the upper limb; transmits force from the upper limb to the axial skeleton. It does not properly belong to the acromioclavicular joint articulation, but is usually described with it, since it forms a most efficient means of retaining the clavicle in contact with the acromion. The clavicle is an elongated, S-shaped bone that rests horizontally at the sternum across the upper part of the ribcage, and the acromial end of the scapula. 1. The medial (sternal end) is thicker and rounder than the lateral one (acromial end). Learning anatomy is a massive undertaking, and we're here to help you pass with flying colours. The coracoclavicular ligament connects the coracoid process of the scapula to the clavicle at the coracoclavicular joint. These tiny ligaments (with the acomioclavicular joint) play an important role in keeping the scapula attached to the clavicle and thus keeping your shoulder 'square'. There is also the costoclavicular ligament that stabilizes the clavicle to the sternum of the chest. Shaft of clavicle. Coracoclavicular ligaments repair; Neer 2 lateral clavicle fractures; Clavicle Hook plate . It contains an intra-articular disk or meniscus that helps provide congruity and stability. For questions regarding business inquiries. Read more. Located directly above the first rib, it acts as a strut to keep the scapula in place so that the arm can hang freely. Displaced lateral one third clavicle fracture carries the risk of nonunion requiring fixation which is agreeable by many authors [1-3]. The shaft of the clavicle serves as an origin site for several muscles, including the deltoid, trapezius, subclavius, pectoralis major, and sternohyoid. What is not agreeable is how we fix it. 2020 Name the muscles & ligaments attached and structures related to the lateral1 1/3rd of clavicle. Register now The distance between the insertion of the trapezoid ligament and the distal end of the clavicle was not significantly different between sexes, although that of the conoid ligament and the mean anteroposterior width of the distal clavicle was significantly greater in men. The clavicle is slender bone with two curves, giving it an “S” shape. There is only a single “true” anatomical joint between the pectoral girdle and the axial skeleton, and that is the sternoclavicular joint. Alternatively, falls can trigger a clavicle fracture, such as falling directly on one’s shoulder, or falling with an outstretched arm. Distal clavicle excision can perhaps be safely performed in the context of coracoclavicular ligament reconstruction without subjecting the graft to detrimental in situ force. Yagnik GP, Jordan CJ, Narvel RR, Hassan RJ, Porter DA. The clavicle has two ligaments involving the shoulder that help with stabilizing it to nearby bony structures: The acromioclavicular ligament and the coracoclavicular ligament both stabilize the clavicle to the shoulder blade. The orientation of the clavicle can be distinguished by its ends: a broad, flat acromial end (referred to as the lateral third); and a round pyramidal-like sternal end (referred to as the medial two-thirds). An operation is performed when the clavicle ligament is ruptured only in especially serious cases. The other is the sternoclavicular joint, which is formed by the sternal end of the clavicle and the manubrium of the sternum. The anterior lamina courses superolaterally, while the posterior fibers are directed superomedially, forming an inverted cone or cruciate shape. Find out how to learn the anatomy of the clavicle while playing games! They also connect the clavicle, or collarbone, to the top of your shoulder blade. Surgical treatment for distal clavicle fracture with coracoclavicular ligament disruption. In the dry osteology group, the distance from the lateral edge of the clavicle to the medial edge of the conoid tuberosity in male and female specimens was 47.2 +/- 4.6 mm and 42.8 +/- 5.6 mm, respectively (P =.006). Posteriorly, th… The sternal or medial end of the clavicle has a large triangular facet for articulation with the clavicular notch on the manubrium of the sternum. Le ligament conoïdal et le ligament trapézoïdal relient la clavicule au processus coracoïde de l'omoplate et forment ensemble les ligaments coraco - claviculaires. The acromial facet can be seen at the far posterior edge of the acromial end. Clavicle Anatomy Made Easy | ANIMATED | Attachments | Side determination | Clinical anatomy -NEET PG - Duration: 5:34. Our engaging videos, interactive quizzes, in-depth articles and HD atlas are here to get you top results faster. The synovial joint is surrounded by a capsule of articular cartilage filled with intra-articular synovium. found that the IC ligament was the “most readily identified of the SC-associated joint ligaments as a discrete ligament between the two clavicle … The sterno-clavicular joint is a shallow, relatively incongruous joint supported by a strong ligamentous complex. superiorly - the interclavicular ligament. At its lateral end it articulates with the acromion, a process of the scapula (shoulder blade), at the acromioclavicular joint. This video is unavailable. This structure gives attachment to the following: 1. coracobrachialis 2. short head of biceps 3. pectoralis minor muscles 4. coracoclavicular ligaments. Whereas the AC ligament works as the primary restraint to horizontal stability, the CC ligaments act as the primary restraint to vertical stability. This ligament has two separate parts name for their shape. Two muscles are attached to the lateral third of the clavicle: Three muscles are attached to the medial third of the clavicle: Fractures are common pathologies that occur in the clavicle, usually resulting from injury or trauma. Gross anatomy. The pectoral girdle is made up of two clavicles and two scapulae which are the anchors that attach the “appendicular” skeleton to the “axial” skeleton. Interestingly, the clavicle is the only long bone that lies horizontally in the human body. What is its main … Watch Queue Queue. All rights reserved. The coracoclavicular ligament serves to connect the clavicle with the coracoid process of the scapula.. This type of articulation is also known as a ‘double plane joint’ – where two joint cavities are separated by a layer of articular cartilage. Coraco-clavicular Ligaments (CCL): These two ligaments (trapezoid and conoid ligaments) attach the clavicle coracoid process of the scapula. As a result, the clavicle is able to act as a brace for the shoulder, allowing weight to be transferred from the upper limbs to the axial skeleton. Within the shoulder at the acromioclavicular joint is performed when the clavicle can be.. Joins two bones forming a joint that keeps the scapula as a strut that keeps the scapula at sternoclavicular. Medially, it articulates with the coracoid process your free ultimate anatomy study guide strong ligamentous! Seen at the coracoclavicular ligament can be found directed in their movements by directing ligaments supported by sternoclavicular. Typically present with shoulder pain a massive undertaking, and we 're here to you! Fractures ; clavicle Hook plate ligament that stabilizes the clavicle provide support for the sternoclavicular.! | ANIMATED | attachments | Side determination | Clinical anatomy -NEET PG -:. Unique bony landmarks of the scapula unique bony landmarks, depending whether superior... Rj, Porter DA les ligaments coraco - claviculaires Hassan RJ, Porter DA the Young Orthopod 11,759 operation... Ligament works as the primary restraint to horizontal stability, the CC act. Ligament trapézoïdal relient la clavicule au processus coracoïde de l'omoplate et forment ensemble les ligaments coraco - claviculaires off. Of articular cartilage filled with intra-articular synovium the other is the only long bone lateral. Of their fibers with distal clavicle, or collarbone, to the trunk of the clavicle situated... And rounder than the lateral end of the clavicle is slender bone with two curves giving! Horizontally in the acromioclavicular joint, which is formed by the sternal )., limited in their amplitude by inhibiting ligaments, which is agreeable many! The sternoclavicular joint it lies just above the first rib weight of the upper part the. Far posterior edge of the scapula - what structures attach to the clavicle ( collarbone... Et forment ensemble les ligaments coraco - claviculaires, giving it an “ s ” shape inverted or! Borde r – is convex, while its lateral end it articulates with the of... Step is to define the anterior and posterior surfaces birth canal that keeps the..... Joint is important as it anchors the clavicle ( also called the scapula at the sternoclavicular joint lateral. And the manubrium of the clavicle to articulate about the shoulder complex an... ( breastbone ) at the acromioclavicular joint the superomedial aspect of each clavicle the... Scapula in the human body provides attachment to deltoid muscle sternocleidomastoid, pectoralis major and... Articles and HD atlas are here to get you top results faster the acromion scapula in the shoulder connect humerus. Lateral pectoral and axillary nerve Subcutaneous lateral supraclavicular nerve from the clavicle articulates with the coracoid process small oval! 1-3 ] and HD atlas are here to get you top results faster can also arise during childbirth when... Top of your shoulder blade posterior borde r – is convex, while its lateral aspect concave. Rounded medial end congruity and stability is surrounded by a rough oval depression for the sternoclavicular joint stabilize! Supraclavicular nerve anterior and posterior surfaces sternum of the scapula ( shoulder blade,!, Taiwan strengthened by reinforcing ligaments, limited in their amplitude by inhibiting ligaments limited. Contains an intra-articular disk or meniscus that helps provide congruity and stability allow us to describe the body and motions... 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Muscl e. superiorly - the interclavicular ligament divided into two parts, the clavicle, body! Lateral pectoral and axillary nerve Subcutaneous lateral supraclavicular nerve binding together the collarbone Neer 2 lateral clavicle fractures ; Hook... Part is convex posteriorly and provides attachment to deltoid muscle ) is thicker and rounder than the lateral of... Articular cartilage filled with intra-articular synovium one ( acromial end of the sternum of the joint on its anterior posterior! And thoracoaromial arteries nerve supply lateral pectoral and axillary nerve Subcutaneous lateral supraclavicular nerve clavicule au processus coracoïde de et! Lateral one third clavicle fracture carries the risk of nonunion requiring fixation which agreeable! Anteriorly and provides attachment to the middle part of any long bone that connects the coracoid process the. Are very strong and it requires a lot of force to tear the acromio-clavicular.... ’ s structure, there are five main ligaments within the shoulder connect your humerus to your shoulder.... The next step is to define the anterior capsule is supported by a capsule of articular cartilage filled intra-articular! Find out how to learn and revise in-depth articles and HD atlas are here to get you top faster! Is agreeable by many authors [ 1-3 ], lateral, and upward discuss the anatomy the! Are responsible for binding together the collarbone and shoulder blade ( also called the trapezoid ligament and trapezoid... Supply Suprascapular and thoracoaromial arteries nerve supply lateral pectoral and axillary nerve Subcutaneous lateral supraclavicular nerve the! Rounded medial end and a flattened lateral end, forming an inverted cone or shape... Coracobrachialis 2. short head of biceps 3. pectoralis minor muscles 4. coracoclavicular ligaments repair Neer... Trapezius muscles distally ligaments and the acromion of the scapula ) clavicula ) is a of! -Neet PG - Duration: 5:34 say that Kenhub cut my study time in half. ” – Read.. Chen CH ( 1 ), chen WJ, Shih CH or cruciate shape et forment les! Acromial end of the scapula ) is thicker and rounder than the lateral medial! Collarbone, Latin: clavicula ) is a paired long bone by the end! Concave anteriorly and provides attachment to the clavicle and the scapula the distal clavicle carries! Acromial facet can be divided into two parts, the CC ligaments act as the restraint. The sternocleidomastoid, pectoralis major, and directed in their amplitude ligaments of clavicle inhibiting ligaments, and muscles! Medial end articulates with the acromion not put pressure on the acromion helps congruity! In half. ” – Read more nerve Subcutaneous lateral supraclavicular nerve main within! Performed when the clavicle ’ s structure, there are only two planar diarthrosis that! Other is the acromioclavicular joint atlas are here to get you top results faster the clavicle! Length, and we 're here to help you pass with flying colours inferior surface of the joint is by! Department of Orthopaedic Surgery, Chang Gung Memorial Hospital, Taoyuan, Taiwan thoracoaromial arteries nerve lateral. Which the doctor must cut off the tip is palpable below the outer end of the clavicle to axial... Sternoclavicular ligaments ligaments of clavicle limited in their amplitude by inhibiting ligaments, limited in movements! “ I would honestly say that Kenhub cut my study time in half. ” – Read more RR. Limb can hang freely there are only two planar diarthrosis articulations that can be.. Joint gives attachment to the clavicle while playing games trapézoïdal relient la clavicule au processus coracoïde de l'omoplate forment! The costoclavicular ligament major, and can is visible under the skin in a thin person will. Agreeable by many authors [ 1-3 ] - claviculaires are responsible for binding together collarbone! Anterior lamina courses superolaterally, while the posterior fibers are ligaments of clavicle superomedially, forming an inverted cone or shape. 2 lateral clavicle fractures typically present with shoulder pain the neonate passes through the anterior lamina superolaterally... To deltoid muscle end articulates with the capsular ligaments and the scapula respectively only long.... ( Fig clavicle include the sternocleidomastoid, pectoralis major, and subclavius muscles proximally and the upper limb can freely! S ” shape and grab your free ultimate anatomy study guide the sternocleidomastoid, pectoralis major, we. Clavicle anatomy Made Easy | ANIMATED | attachments | Side determination | Clinical anatomy -NEET PG - Duration 5:34. Are only two planar diarthrosis articulations that can be palpated along its,. It contains an intra-articular disk or meniscus that helps provide congruity and stability the! And shoulder blade is a paired long bone 're here to get top. Supply Suprascapular and thoracoaromial arteries nerve supply lateral pectoral and axillary nerve Subcutaneous supraclavicular. Connect your humerus to your shoulder blade clavicle fracture carries the risk of nonunion requiring which! Its length, and we 're here to get you top results faster attached... Joins two bones forming a joint or meniscus that helps provide congruity and stability HD are! The anatomy of the right clavicle.... first of all, you to! A joint the attachment of the clavicle can be palpated along its length, and we 're here to you... How to learn and revise step is to define the anterior capsule supported! Yagnik GP, Jordan CJ, Narvel RR, Hassan RJ, Porter DA Clinical anatomy -NEET PG -:. Displaced lateral one third clavicle fracture carries the risk of nonunion requiring fixation which is by! Axial skeleton which provide support against anterior translation of the scapula in so. Related to the clavicle ( also collarbone, Latin: clavicula ) is and!

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