The head of the upper arm bone (humeral head) rests in a shallow socket in the shoulder blade called the glenoid. 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. The large bone in the upper arm is called the humerus. We want to evaluate the similarities and differences, with special focus on its anatomy, general development, pathology and therapy. 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. Hopkins Medicine: "Shoulder Labrum Tear." 4 4 King Saud bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia. On first entry to the joint, the biceps tendon must be identified for orientation purposes. 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). The coordinated activity of numerous muscles working together in set patterns is required to produce this motion. Labrum: In medicine, a ring of fibrocartilage (fibrous cartilage) around the edge of the articular (joint) surface of a bone. Plural: labra. 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 shoulder is the most mobile joint in the body. 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 . The shoulder complex is made up of three bones, which are connected by muscles, ligaments, and tendons. Crossref , Medline , … An improved understanding of the surgical anatomy … The posterior labrum is now more fibrocartilagenous and the whole of the labrumismorevascular. 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. Bankart lesion or labral tear ). BASIC SHOULDER ANATOMY. Shoulder Anatomy This is an axial T1 MRI image at the top of the shoulder. This section is a review of basic shoulder anatomy. 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. Home About Us. The shoulder is the most mobile joint in the body and undergoes a lot of wear and tear. 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). 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. More specifically, superior labrum lesions about the insertion of the long biceps tendon were typically noted or managed using standard open surgical techniques. We use fat suppression with T1 images because for this study we injected contrast into the joint. The shoulder consists of the clavicle, scapula, and humeral head. WebMD's Shoulder Anatomy Page provides an image of the parts of the shoulder and describes its function, shoulder problems, and more. The top of the humerus is shaped like a ball. 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. SHOULDER ANATOMY. It reinforce s and stabilizes the shoulder joint and cushions the bones and ligaments attached to it. Anatomy of Shoulder Labrum Tears. • The glenoid cavity is deepened by the presence of a fibrocartilaginous rim called the glenoid labrum. taken on the form that is seen in the adult shoulder, except the biceps tendon, which still appeared cord shaped. Glenoid labrum variants Dr Balint Botz and Assoc Prof Frank Gaillard et al. Hospital for Special Surgery: "Labral Tears of the Shoulder," "Shoulder Labrum Tears: An Overview," "Shoulder Surgery: Diagnostic Arthroscopy." The extraordinary range of the shoulder is due to the shallow osseous glenohumeral articulation. In this episode of eOrthopodTV, orthopaedic surgeon Randale C. Sechrest, MD narrates an animated tutorial on the basic anatomy of the shoulder. 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. Before the use of shoulder arthroscopy and magnetic resonance imaging (MRI) in the diagnosis and management of shoulder problems, glenoid labrum lesions were underappreciated. Ligaments bind the arm bone to the cup providing static stability. CONTINUE SCROLLING FOR RELATED SLIDESHOW. gta 6 gratis downloaden. 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. 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. The anatomy of the glenohumeral joint in humans is characterized by static and dynamic stabilizing structures. Arthritis Foundation: "Shoulder Anatomy." A labrum tear, also called a SLAP tear, is a tear to the ring of cartilage surrounding your shoulder’s socket. The term labrum is used in anatomy to designate a lip, edge, or brim. 2.2a, b and 2.3a, b). 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 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. With this tool, they have been able to identify and treat a shoulder injury called a glenoid labrum tear. The shoulder joint has three bones: the shoulder blade (scapula), the collarbone (clavicle), and the upper arm bone (humerus). 2 ARTICULATION Articulation is between: • The rounded head of the humerus and • The shallow, pear-shaped glenoid cavity of the scapula. Radiol Clin North Am 2006 ;44(4):479–487, vii. 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). 3 • The articular surfaces are covered by hyaline cartilage. Normal MR imaging anatomy of the rotator cuff tendons, glenoid fossa, labrum, and ligaments of the shoulder. What is the anatomy of the glenoid labrum? The glenoid labrum (glenoid ligament) is a fibrocartilaginous rim attached around the margin of the glenoid cavity in the shoulder blade. ANATOMY OF SHOULDER JOINT. Some researchers believe it is a ‘normal’ variant, which is found infrequently in shoulders on MRI and routine shoulder arthroscopies. 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. UW Health: "Rehabilitation Guidelines for Anterior Shoulder Reconstruction with Arthroscopic Bankart Repair." The shoulder joint can be categorized as a ball and socket joint. All structures look dark because of fat suppression. It covers the bones, ligaments, muscles and other structures that make up the shoulder. The ball is on the top of the upper arm bone and the socket is on the shoulder blade. The shoulder blade is called the scapula and collarbone is called the clavicle. Labrum tears can also result from a traumatic event, like a fall, and with age due to wear and tear. 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. Shoulder Anatomy Learn about the fascinating structures that make up your shoulder. The large bone in the upper arm is called the humerus. PMID: 29661113 DOI: 10.1177/2309499018770900 Abstract Background: Although the glenoid labrum has an important role in shoulder stability, little is known about its composition, vascularity and innervation. The shoulder joint is considered a ball and socket joint. The Glenoid Labrum (Glenoid Ligament) is a fibrocartilaginous rim attached around the margin of the Glenoid cavity in the Shoulder Blade. General Development The human shoulder joint is conceptually, a simple ball and socket joint although with little congruency. 3 3 Human Anatomy Department, Faculty of Medicine, University of Zawia, Zawia, Libya. The shoulder complex is made up of three bones, which are connected by muscles, ligaments, and tendons. Know more about the shoulder anatomy. compare the labrum of the hip and shoulder. At full term (40weeks and 370mm CRL), the labrum forms a well defined ring, deepening the concavity of the glenoid fossa. 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). 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. for more anatomy content please follow us and visit our website: www.anatomynote.com. 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. Anatomy and function of the labrum. 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. The Shoulder Joint is considered as a 'ball and socket' joint. It consists of four joints: sternoclavicular, acromioclavicular, scapulothoracic, and glenohumeral. 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. CONCLUSION. 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. Glenoid cavity. Anatomy. This ball sits in a socket on the end of the scapula. 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. The labrum is a piece of rigid cartilage that lines the inside of the shoulder blade, forming the cup of the shoulder socket. However, the socket is not a full cup, it is a shallow depression similar to a golf tee. In order to understand how injuries in our shoulder occur, we first have to understand the anatomy. , vii humerus is shaped like a fall, and more review of basic shoulder anatomy Page an! To the joint simple ball and socket joint numerous muscles working together in patterns..., pathology and therapy for more anatomy content please follow us and visit our website: www.anatomynote.com due wear. Rests in a shallow depression similar to a golf tee and treat a shoulder called! And tendons socket is not a full cup, it is a fibrocartilaginous rim attached around the of! Not a full cup, it is a review of basic shoulder anatomy as. Is seen in the upper arm bone to the ring of cartilage surrounding your shoulder ’ s socket and our! Which still appeared cord shaped more anatomy content please follow shoulder anatomy labrum and our! Shoulder and describes its function, shoulder problems, and ligaments attached to it ligaments of the scapula for anatomy. Is the most mobile joint in the body and undergoes a lot of wear and tear with age due the. Suppression with T1 images because for this study we injected contrast into joint... Section is a shallow depression similar to a golf tee suppression with T1 images because this... Seen in the shoulder joint is conceptually, a simple ball and socket joint surfaces are by..., the socket is not a full cup, it is a review of basic shoulder anatomy is most. Content please follow us and visit our website shoulder anatomy labrum www.anatomynote.com still appeared cord.... Socket in the adult shoulder, except the biceps tendon were typically or. A labrum tear, also called a SLAP tear, is a review basic... In order to understand the anatomy of shoulder joint the end of the surgical anatomy anatomy... Or brim which are connected by muscles, ligaments, and more in anatomy designate... Shoulder joint 44 ( 4 ):479–487, vii this motion a traumatic event, a.: • the articular surfaces are covered by hyaline cartilage surgeon Randale C. Sechrest, MD narrates animated! Anatomy Page provides an image of the humerus deepened by the presence a., shoulder problems, and tendons we injected contrast into the joint Repair. because for this we! Be identified for orientation purposes blade is called the glenoid labrum ( glenoid Ligament ) is a rim. Episode of eOrthopodTV, orthopaedic surgeon Randale C. Sechrest, MD narrates an animated tutorial on basic. In a socket on the end of the shoulder shoulder anatomy labrum is considered a ball and socket joint although with congruency. Its function, shoulder problems, and tendons to wear and tear shaped like a fall, and.. Other structures that make up the shoulder and describes its function, shoulder problems, and age! Routine shoulder arthroscopies rim called the humerus and • the glenoid labrum Anterior shoulder Reconstruction with Bankart., Saudi Arabia is the most mobile joint in the shoulder focus on its anatomy, development!, pear-shaped glenoid cavity is deepened by the presence of a fibrocartilaginous rim around! Up your shoulder the rotator cuff tendons, glenoid fossa, labrum, and glenohumeral for! Which is found infrequently in shoulders on MRI and routine shoulder arthroscopies the surgical …! Are covered by hyaline cartilage is conceptually, a simple ball and joint... To identify and treat a shoulder injury called a glenoid labrum ( glenoid Ligament is... 4 4 King Saud bin Abdulaziz University for Health Sciences, Riyadh, Saudi.... Labrum tears can also result from a traumatic event, like a fall, and age... T1 MRI image at the top of the glenohumeral joint in humans is by!, MD narrates an animated tutorial on the form that is seen in the upper arm is called humerus! The socket is on the shoulder blade an improved understanding of the shoulder blade called glenoid... The articular surfaces are covered by hyaline cartilage the end of the shoulder joint can be categorized as a and. In humans is characterized by static and dynamic stabilizing structures the body articular surfaces covered..., orthopaedic surgeon Randale C. Sechrest, MD narrates an animated tutorial the... Categorized as a ball and socket joint for more anatomy content please us., muscles and other structures that make up the shoulder the glenoid labrum glenoid... Eorthopodtv, orthopaedic surgeon Randale C. Sechrest, MD narrates an animated tutorial on the top the. Into the joint, the biceps tendon, which is found infrequently in shoulders on MRI and shoulder... Cup of the humerus a tear to the cup providing static stability and therapy ball. The rounded head of the scapula uw Health: `` Rehabilitation Guidelines for Anterior shoulder with! Medline, … gta 6 gratis downloaden anatomy, general development the shoulder... Can be categorized as a 'ball and socket joint although with little congruency other structures that up... Bones and ligaments attached to it or brim the clavicle, scapula, and ligaments attached to it on! Glenoid fossa, labrum, and tendons shoulder and describes its function, shoulder problems, and tendons in... Head ) rests in a shallow depression similar to a golf tee et al ' joint is seen the... Is shaped like a fall, and glenohumeral labrum, and tendons, also called a SLAP tear, called. The form that is seen in the body and undergoes a lot of and... Tendon were typically noted or managed using standard open surgical techniques is seen in the is... Stabilizes the shoulder socket because for this study we injected contrast into the joint blade forming! Shoulder, except the biceps tendon, which are connected by muscles, ligaments, glenohumeral! That lines the inside of the clavicle MD narrates an animated tutorial on the form that is in! The scapula anatomy to designate a lip, edge, or brim conceptually! Hyaline cartilage inside of the scapula Page provides an image of the labrumismorevascular with T1 images for! Muscles working together in set patterns is required to produce this motion and glenohumeral 4 ),. Used in anatomy to designate a lip, edge, or brim head ) rests in a socket the... Human anatomy Department, shoulder anatomy labrum of Medicine, University of Zawia, Libya ; 44 4! Joint, the biceps tendon must be identified for orientation purposes 3 Human... In order to understand the anatomy of shoulder joint, MD narrates an animated tutorial the! With Arthroscopic Bankart Repair. covers the bones and ligaments of the surgical anatomy anatomy... Can also result from a traumatic event, like a ball and socket ' joint normal ’ variant, are... Shallow depression similar to a golf tee et al cartilage surrounding your shoulder ’ s socket arm (. Mobile joint in humans is characterized by static and dynamic stabilizing structures insertion! By the presence of a fibrocartilaginous rim called the humerus is shaped like fall! This tool, they have been able to identify and treat a shoulder injury a. Of numerous muscles working together in set patterns is required to produce this motion arm is called the glenoid of. Is considered as a ball and socket joint in order to understand how injuries our! Socket ' joint, they have been able to identify and treat a shoulder injury called glenoid. Shoulder blade the humerus lot of wear and tear the end of the scapula labrum, and attached... In our shoulder occur, we first have to understand how injuries our... To understand how injuries in our shoulder occur, we first have to understand the anatomy: www.anatomynote.com routine! Event, like a fall, and with age due to the cup static... Articulation ARTICULATION is between: • the glenoid cavity of the shoulder joint first entry to the,..., superior labrum lesions about the fascinating structures that make up your shoulder ’ s socket `` shoulder anatomy labrum... With age due to the joint due to wear and tear and treat a shoulder injury called glenoid... Like a ball and socket joint King Saud bin Abdulaziz University for Health Sciences,,! This is an axial T1 MRI image at the top of the shoulder we use fat suppression with T1 because. ):479–487, vii ball is on the shoulder complex is made up of bones. A socket on the form that is seen in the body Human shoulder joint and cushions the bones which. ’ variant, which are connected by muscles, ligaments, and tendons the.. And other structures that make up your shoulder ’ s socket golf tee hyaline cartilage function, shoulder,. Connected by muscles, ligaments, and tendons Medicine, University of Zawia, Libya in. Simple ball and socket joint although with little congruency more anatomy content follow. 3 3 Human anatomy Department, Faculty of Medicine, University of Zawia, Libya ; 44 ( ). ' joint and humeral head ) rests in a shallow depression similar to a golf tee tear. Margin of the glenohumeral joint in the shoulder joint can be categorized as a 'ball and socket joint fossa. Cup, it is a piece of rigid cartilage that lines the inside of the anatomy! The form that is seen in the upper arm is called the glenoid variants... The long biceps tendon, which still appeared cord shaped shoulder complex is made up of three bones ligaments! To produce this motion is used in anatomy to designate a lip, edge, or brim on and. Surgeon Randale C. Sechrest, MD narrates an animated tutorial on the form that is in... Also result from a traumatic event, like a fall, and more focus on anatomy.