ligaments of clavicle

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 coracoclavicular ligament can be divided into two parts, the more medial conoid ligament and trapezoid ligament.. conoid ligament. The clavicle is located at the top of the thoracic wall, just below the neck and to the sides of the sternum. The anterior lamina courses superolaterally, while the posterior fibers are directed superomedially, forming an inverted cone or cruciate shape. Kim Bengochea, Regis University, Denver, Author: The synovial joint is surrounded by a capsule of articular cartilage filled with intra-articular synovium. The next steps in treatment or work-up can then … Ligaments in the shoulder connect your humerus to your shoulder blade (also called the scapula). They are responsible for binding together the collarbone and shoulder blade. Le ligament conoïdal et le ligament trapézoïdal relient la clavicule au processus coracoïde de l'omoplate et forment ensemble les ligaments coraco - claviculaires. For questions regarding business inquiries. 2020 The joint is also reinforced by two accessory ligaments: Looking for a new way to learn and revise? Sternoclavicular joint ligaments stabilize the joint on its anterior and posterior surfaces. “I would honestly say that Kenhub cut my study time in half.” This ligament has two separate parts name for their shape. It suspends the weight of the upper limb from the clavicle. 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). At its lateral end it articulates with the acromion, a process of the scapula (shoulder blade), at the acromioclavicular joint. Surgical treatment for distal clavicle fracture with coracoclavicular ligament disruption. In this case, he will not put pressure on the acromion. The shaft of the clavicle serves as an origin site for several muscles, including the deltoid, trapezius, subclavius, pectoralis major, and sternohyoid. When facing forward, its medial part is convex, while its lateral aspect is concave. 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. Due to the clavicle’s structure, there are only two planar diarthrosis articulations that can be found. The costoclavicular ligament unites the superior surface of the first rib and its costal cartilage with the inferomedial aspect of the clavicle. This structure gives attachment to the following: 1. coracobrachialis 2. short head of biceps 3. pectoralis minor muscles 4. coracoclavicular ligaments. Read more. These ligaments are very strong and it requires a lot of force to tear the acromio-clavicular ligaments. 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. 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. Most distal clavicle fractures are the result of a fall onto the distal clavicle or a direct blow to it. Acromial end of clavicle . 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. Kenhub. Costic et al. The clavicle acts as a strut that keeps the scapula in place so that the upper limb can hang freely. This article will discuss the anatomy of the clavicle. 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). The costoclavicular ligament … The inferior aspect of the medial end is marked by a rough oval depression for the attachment of the costoclavicular ligament. Patients with distal clavicle fractures typically present with shoulder pain. 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'. Clavicle fractures can be treated either: Grounded on academic literature and research, validated by experts, and trusted by more than 1 million users. These ligaments are very strong and it requires a lot of force to tear the acromio-clavicular ligaments. 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. Watch Queue Queue – Martin Lalama 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.

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