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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Kumar VP, Balasubramaniam P. Articles lacking in-text citations from October All articles lacking in-text citations Infobox medical condition new Leson 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 Support Radiopaedia and see fewer ads.

Sometimes this makes it easier to understand the anatomy. Perthes Detachment of the anteroinferior labrum o’clock with medially stripped hpmbro intact periosteum. Next notice the high signal at 12 o’ clock red arrows. Lee for their support in the serial works on shoulder instability. This stabilising mechanism is called a concavity-compression effect. Most people prefer to use the linear measurement Fig.

This is not the correct way to determine an engaging HSL and the prevalence was definitely overestimated. With the arm at the posterior end-range of movement such as abduction and external rotation, the glenoid comes to the posterolateral portion of the humeral head, where the HSL is located. To quiz yourself on this article, log in to see multiple choice questions. Read it at Google Books – Find it at Amazon.

It is the most dislocated joint in the body. For off-track lesions, either remplissage or Latarjet procedure is indicated, depending upon the glenoid defect size and the bankarrt of recurrence. Current Orthopaedic Practice ; It is a very fundamental question.


Dynamic examination before the Bankart repair: The basic concept of shoulder stability is explained in the first section of hombor article so that the following explanation of bony stability will be better and more easily understood by the readers. Mid-range stability is provided by the negative intra-articular pressure 34 and the concavity-compression effect.

Support Radiopaedia and see fewer ads. Perthes lesion of the shoulder Perthes lesions Perthes lesions of the shoulder.

In Italian [ PubMed hombfo. It is not clear whether the labrum is normal. Loading Stack – 0 images remaining.

Labral variants however may mimick a SLAP tear. An uncommon cause of anterior dislocation is inpatients with a dysplasia of the glenoid. The anterior and posterior drawer tests load and shift test and sulcus test are performed with the arm in the mid-range of movement because these tests are aimed to detect the laxity of the shoulder joint.

Images of another patient with a posterior dislocation. In the ABER position however there is tension on the antero-inferior labrum by the stretched anterior band of the inferior glenohumeral ligament and you have more chance to detect the tear. A best-fit circle is applied, which fits perfectly to the posterior and to the inferior part of the glenoid.

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In general, the negative value of the intra-articular pressure increases linearly with an increase of banakrt pull. The only exception to this rule is the reverse Bankart, which is the result of a posterior dislocation and injury to the inferoposterior labrum. Himbro chronic cases there may be fibrosis and resynovialization of the labrum and periosteum. Hill-Sachs lesion HSL in the mid-range: Surgical treatment of anterior instability in rugby union players: Author information Copyright and License information Disclaimer.


Perthes lesion | Radiology Reference Article |

The images show a partial tear of the anteroinferior labrum with adjacent cartilage damage at the o ‘clock position arrows. Hill-Sachs is a posterolateral depression of the humeral head. Notice how this high signal continues posteriorly, which means that it is a SLAP-lesion.

Location of the glenoid defect in shoulders with recurrent anterior dislocation. Roentgenographic demonstration of instability of the shoulder: The image on the right is rotated 90? Bankart lesions occur as a direct result of anterior dislocation of the humeral head, whereby the humerus is compressed against the labrum.

This resulted in both a Hill-Sachs impression fracture on the posterior aspect of the humeral head blue arrow and an impression fracture on the anterior aspect as a result of posterior dislocation red arrow. The same mechanism of compression can result in a Hill-Sachs lesion.

This results in instability and recurrent dislocations. The MR-images are of a patient who had undergone both an anterior aswell as a posterior dislocation.

Some reported that it was sufficient to fix a fragment back to the glenoid even though the fragment size was much smaller than the size of the glenoid defect. Dynamic examination after the Bankart repair: Abstract Shoulder stability depends on the position of the arm as well as activities of the muscles around the shoulder.

Check for errors and try again. Another example of a reverse Bankart. The capsulo-ligamentous structures are the main stabilisers with the arm at the end-range of movement, ban,art negative intra-articular pressure and concavity-compression effect are the main stabilisers with the arm in the mid-range of movement.