En ortopedia, la lesión de Bankart es una rotura de la parte anteroinferior del reborde glenoideo o labrum glenoideo de la escápula, a consecuencia de una luxación anterior de hombro. Perthes lesion is variant of Bankart lesion, presenting as an anterior glenohumeral injury that occurs when the scapular periosteum remains intact but is stripped. Sometimes, glenoid bone loss accompanies a bony fragment, which is called a bony Bankart lesion. This is observed in.
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Perthes lesion | Radiology Reference Article |
Value of the glenoid profil in recurrent luxations of the shoulder. It should not be confused with Perthes disease of the hip. What is the critical size of HSL? Bone fragment union and remodeling after arthroscopic bony Bankart repair for traumatic anterior shoulder instability with a glenoid defect: Sagittal MR-arthrogram demonstrates the superior extension of the Bankart tear. The dislocation of the humeral head to antero-inferior causes damage to the antero-inferior banoart of the glenoid in the 3 – 6 o’clock position marked in bombro.
‘On-track’ and ‘off-track’ shoulder lesions
bamkart The arrow points to the intact periosteum. The arrow points to the medially displaced labroligamentous complex. Unfortunately, most investigators perform the dynamic examination before the Bankart repair and call it an engaging HSL if this examination is positive.
During arthroscopic surgery, the relative relationship between the HSL and the glenoid can be assessed. You can also scroll through stacks with your mouse wheel or the keyboard arrow keys. Tirman AJR January The arrow points to the disrupted periosteum. Another patient with an avulsion of the inferior glenohumeral ligament from the humeral insertion.
Articles lacking in-text citations from October All articles lacking in-text citations Infobox medical condition new Pages using infobox medical condition with unknown parameters Articles to be expanded from November All articles to be expanded Articles with empty sections from November All articles with empty sections Articles using small message boxes Wikipedia articles needing clarification from October The responsiveness of intra-articular pressure to the external load is determined by the volume of the joint as well as the thickness and quality bamkart the surrounding soft-tissue envelope, such as the joint capsule and the muscles.
Perthes Detachment of the anteroinferior labrum o’clock with medially stripped but intact periosteum. Therefore, this is a stable shoulder; b the HSL is the same size as in abut it is not entirely covered by the glenoid oesion to a bony defect of the glenoid.
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Shoulder MR – Instability
Hill-Sachs lesion HSL in the mid-range: Contact between the glenoid and the humeral head in abduction, external rotation, and horizontal extension: For example, the anteroinferior capsule including the inferior glenohumeral ligament IGHL becomes tight when the arm is in abduction, external rotation and horizontal extension.
Due bnkart these recurrent dislocations significant bone loss and erosion of the anterior glenoid rim may occur, which maintains the unstable situation. Most commonly due to anterior shoulder dislocation. The tear extends to superior black arrows.
Notice extention of the SLAP-tear further to posterior red arrow. A useful adjunct in the diagnosis of recurrent instability of the shoulder. We still do not know how much size discrepancy between a glenoid defect and a hombrp would be acceptable. The basic concept of shoulder stability is explained in the first section of this article so that the following explanation of bony stability will be better and more easily understood by the readers. Articles Cases Courses Quiz.
This is probably the result of a very large long-standing rotator cuff tear with progressive cranialisation of the humeral head and erosion of the acromion.
The image on the left shows an absent anterosuperior labrum, which is called a Buford complex. A sublabral recess can bankrt a differential in some situations. Perthes lesion of the shoulder Perthes lesions Perthes lesions of the shoulder.
Published online Aug ho,bro. Log in Sign up. J Orthop Sci ; 9: J Bone Joint Surg [Am] ; Osseus Bankart Bankart lesions with an osseus fragment are common findings in patients with an anterior dislocation and are frequently seen on the x-rays or CT-scan.
Injury to these reinforcing soft tissue structures is thought to predispose to recurrent dislocation 7. On the transscapular-Y view the humeral head is displaced posteriorly.
There is a detachment lesuon the anteroinferior labrum o’clock with complete tearing of the anterior scapular periosteum. On coronal images you want to make sure whether this is a variant like a labral recess or labral foramen or whether this is a SLAP.
It is above or at the level of the coracoid in the first 18 mm of the proximal humeral head. As soon as the bankadt contraction occurs with the arm elevated, the contraction force by the shoulder muscles pulls the humeral head against the glenoid socket, which in turn creates a resistance force against translation of the humeral head.
Case 10 Case Sometimes the displacement is difficult to appreciate, especially when the transscapular-Y view is slightly rotated.