The glenohumeral joint is a ball and socket joint which has sacrificed stability for mobility - stability is provided by a strong capsule, ligaments and surrounding musculature. The labrum can tear a few different ways: 1) completely off the bone, 2) within or along the edge of the labrum, or 3) where the bicep tendon attaches. We use fat suppression with T1 images because for this study we injected contrast into the joint. Anatomy and function of the labrum. The shoulder blade is called the scapula and collarbone is called the clavicle. We studied the gross, histological, and vascular anatomy of the glenoid labrum in twenty-three fresh-frozen shoulders from cadavera to demonstrate its cross-sectional anatomy, its microvascularity, and its attachments. gta 6 gratis downloaden. The coordinated activity of numerous muscles working together in set patterns is required to produce this motion. Glenoid cavity. We want to evaluate the similarities and differences, with special focus on its anatomy, general development, pathology and therapy. It reinforce s and stabilizes the shoulder joint and cushions the bones and ligaments attached to it. Glenoid labrum variants Dr Balint Botz and Assoc Prof Frank Gaillard et al. Shoulder Anatomy. The top of the humerus is shaped like a ball. The large bone in the upper arm is called the humerus. The shoulder joint can be categorized as a ball and socket joint. taken on the form that is seen in the adult shoulder, except the biceps tendon, which still appeared cord shaped. The labrum is a piece of rigid cartilage that lines the inside of the shoulder blade, forming the cup of the shoulder socket. The large bone in the upper arm is called the humerus. Labrum tears can also result from a traumatic event, like a fall, and with age due to wear and tear. CONCLUSION. Hopkins Medicine: "Shoulder Labrum Tear." The Glenoid Labrum (Glenoid Ligament) is a fibrocartilaginous rim attached around the margin of the Glenoid cavity in the Shoulder Blade. The Buford complex is a relatively rare and under-recognised variant of normal shoulder anatomy that affects the antero-superior labrum and the middle glenohumeral ligament (MGHL). With this tool, they have been able to identify and treat a shoulder injury called a glenoid labrum tear. However, in bony terms the 'socket' (the glenoid fossa of the scapula) is quite shallow and small, covering at most only a third of the 'ball' (the head of the humerus). WebMD's Shoulder Anatomy Page provides an image of the parts of the shoulder and describes its function, shoulder problems, and more. An improved understanding of the surgical anatomy … There are a number of glenoid labral variants , whose importance is mainly due to the fact that the unwary may misinterpret them as pathology (e.g. Between the meeting point of these bones lies the labrum – a band of fibrocartilaginous tissue that helps to nest the ball of the upper arm bone within the shallow socket formed by the glenoid. Plural: labra. At full term (40weeks and 370mm CRL), the labrum forms a well defined ring, deepening the concavity of the glenoid fossa. Anatomy of Shoulder Labrum Tears. Normal MR imaging anatomy of the rotator cuff tendons, glenoid fossa, labrum, and ligaments of the shoulder. This ball sits in a socket on the end of the scapula. BASIC SHOULDER ANATOMY. Our Team Online Consultations ... A firm, rubbery ring of tissue called the labrum is attached to the edge of the glenoid, and the humeral head and glenoid are covered in a smooth, gliding surface called articular cartilage (joint surface). The posterior labrum is now more fibrocartilagenous and the whole of the labrumismorevascular. The extraordinary range of the shoulder is due to the shallow osseous glenohumeral articulation. The shoulder is the most flexible joint in the body enabling a wide range of movements including, forward flexion, abduction, adduction, external rotation, internal rotation, and 360-degree circumduction. Before the use of shoulder arthroscopy and magnetic resonance imaging (MRI) in the diagnosis and management of shoulder problems, glenoid labrum lesions were underappreciated. The shoulder is a ball-and-socket joint composed of the upper head of the humerus (ball) and a pocket-shaped bone known as the glenoid (socket). Shoulder Anatomy Learn about the fascinating structures that make up your shoulder. 3 3 Human Anatomy Department, Faculty of Medicine, University of Zawia, Zawia, Libya. On first entry to the joint, the biceps tendon must be identified for orientation purposes. General Development The human shoulder joint is conceptually, a simple ball and socket joint although with little congruency. It consists of the labrum (a type of fibrocartilage tissue) which supports in forming a suction cup for the humerus (arm bone), thus leading to stability and improved mobility of the joint. The shoulder complex is made up of three bones, which are connected by muscles, ligaments, and tendons. The biceps tendon is visualised from the attachment known as the biceps anchor in the supraglenoid tubercle and superior labrum, along the rotator interval as far as the point where it emerges from the shoulder (Figs. Bankart lesion or labral tear ). Anatomy. compare the labrum of the hip and shoulder. for more anatomy content please follow us and visit our website: www.anatomynote.com. The term labrum is used in anatomy to designate a lip, edge, or brim. Hospital for Special Surgery: "Labral Tears of the Shoulder," "Shoulder Labrum Tears: An Overview," "Shoulder Surgery: Diagnostic Arthroscopy." 3 • The articular surfaces are covered by hyaline cartilage. In this episode of eOrthopodTV, orthopaedic surgeon Randale C. Sechrest, MD narrates an animated tutorial on the basic anatomy of the shoulder. The shoulder is the most mobile joint in the body. SHOULDER ANATOMY. Ligaments bind the arm bone to the cup providing static stability. The shoulder joint is considered a ball and socket joint. 2 ARTICULATION Articulation is between: • The rounded head of the humerus and • The shallow, pear-shaped glenoid cavity of the scapula. It consists of four joints: sternoclavicular, acromioclavicular, scapulothoracic, and glenohumeral. The Shoulder Joint is considered as a 'ball and socket' joint. The anatomy of the glenohumeral joint in humans is characterized by static and dynamic stabilizing structures. The ball is on the top of the upper arm bone and the socket is on the shoulder blade. However, the socket is not a full cup, it is a shallow depression similar to a golf tee. CONTINUE SCROLLING FOR RELATED SLIDESHOW. A labrum tear, also called a SLAP tear, is a tear to the ring of cartilage surrounding your shoulder’s socket. The labrum also serves as an attachment point for the long head of the biceps tendon, the glenohumeral ligaments, and the long head of the triceps tendon, forming a periarticular system of fibers that gives the shoulder joint much needed stability. Shoulder Anatomy This is an axial T1 MRI image at the top of the shoulder. In particular the glenoid labrum (GL), the proximal attachment of the joint capsule and the lateral glenohumeral ligament, is an important passive stabilizer in the human shoulder. Axial T1 FS: Normal anatomy of the glenohumeral joint and rotator cuff on a MR (Magnetic Resonance) arthrography of the shoulder: MRI of the labrum, tendons of the rotator cuff muscles, glenohumeral ligaments, articular capsule and subacromial-subdeltoid bursa . This injury is common among athletes participating in sports that involve repetitive throwing or overhead motions, such as baseball and volleyball, as well as football. Labrum: In medicine, a ring of fibrocartilage (fibrous cartilage) around the edge of the articular (joint) surface of a bone. Fat suppression is commonly used after contrast is given on MRI to increase the conspicuity of the contrast material as you will see on later images. What is the anatomy of the glenoid labrum? The shoulder labrum is a thick piece of tissue attached to the rim of the shoulder socket that helps keep the ball of the joint in place. This section is a review of basic shoulder anatomy. The head of the upper arm bone (humeral head) rests in a shallow socket in the shoulder blade called the glenoid. The shoulder joint has three bones: the shoulder blade (scapula), the collarbone (clavicle), and the upper arm bone (humerus). The shoulder is one of the most sophisticated and complicated joints of the body: It has the greatest range of motion of any joint in the body allowing complete global movement allowing you to position the hand anywhere in space. Crossref , Medline , … The shoulder complex is made up of three bones, which are connected by muscles, ligaments, and tendons. ANATOMY OF SHOULDER JOINT. However, in bony terms the 'socket' (the glenoid fossa of the Scapula) is quite shallow and small, covering only a third of the 'ball' (the head of the Humerus). All structures look dark because of fat suppression. Home About Us. UW Health: "Rehabilitation Guidelines for Anterior Shoulder Reconstruction with Arthroscopic Bankart Repair." Radiol Clin North Am 2006 ;44(4):479–487, vii. 2.2a, b and 2.3a, b). The glenoid labrum (glenoid ligament) is a fibrocartilaginous rim attached around the margin of the glenoid cavity in the shoulder blade. The shoulder consists of the clavicle, scapula, and humeral head. Know more about the shoulder anatomy. In order to understand how injuries in our shoulder occur, we first have to understand the anatomy. The shoulder is a ball-and-socket joint between the upper arm bone, which is called the humerus, and the shoulder blade, which is called the scapula. The purpose of this article is to review frequently encountered pitfalls as they pertain to normal and variant anatomy of the shoulder, including the rotator cuff and rotator cable, blood vessels, glenoid labrum, and the glenohumeral ligaments. 4 4 King Saud bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia. Some researchers believe it is a ‘normal’ variant, which is found infrequently in shoulders on MRI and routine shoulder arthroscopies. The shoulder is the most mobile joint in the body and undergoes a lot of wear and tear. The shoulder complex (involving 4 joints, muscles and tendons, ligaments, labrum, capsule, bursa, and neuromuscular bundles), is among the most complicated regions of the body. We are pleased to provide you with the picture named Labrum, Scapula, Rotator Cuff, Deltoid Muscle, Bursa.We hope this picture Labrum, Scapula, Rotator Cuff, Deltoid Muscle, Bursa can help you study and research. It covers the bones, ligaments, muscles and other structures that make up the shoulder. The glenoid labrum is a ring of fibrocartilage that runs around the cavity of the scapula (wingbone) in which the head of the humerus (the bone in the upper arm) fits. Arthritis Foundation: "Shoulder Anatomy." 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