6 天之前 · An anterior labroligamentous periosteal sleeve avulsion (ALPSA) lesion is similar to a Bankart lesion, in that it too is usually due to anterior shoulder dislocation and involves the anterior inferior labrum.

An ALPSA lesion, which stands for “Anterior Labroligamentous Periosteal Sleeve Avulsion,” is a type of shoulder injury. It occurs when the anterior (front) labrum of the shoulder joint is torn and the torn labrum, along with the attached periosteum (the membrane that covers the bones), is displaced medially (towards the center) and heals in ...

ALPSA. An ALPSA-lesion is an Anterior Labral Periosteal Sleeve Avulsion. The anterior labrum is absent on the glenoid rim. The arrow points to the medially displaced labroligamentous complex.

2024年8月23日 · Anterior labrum periosteal sleeve avulsion (ALPSA) lesion of the shoulder is defined as a labral avulsion with an intact periosteum of the glenoid neck resulting in medial malattachment of the labrum, which is both nonanatomic and nonfunctional.

MRI arthrography (MRA) is the imaging method of choice in shoulder instability, especially recurrent instability in the young, where labro-ligamentous pathologies are common. Direct MRA is a two-phase procedure in which intra-articular injection of contrast material (1:200 diluted gadolinium-based contrast material) is performed under image ...

MRA aids the identification and differentiation of intraarticular pathologies such as the ALPSA lesion from a Bankart lesion, which would necessitate a different approach to the surgical repair [14]. MRA also has its uses for the observation of extra-articular anatomy [14], which an arthroscope cannot do.

2010年5月1日 · Abnormal anteroinferior labral lesions were classified into the Perthes lesion, Bankart lesion, anterior labrum periosteal sleeve avulsion lesion (ALPSA) lesion, bony Bankart lesion, and glenoid articular rim disruption (GLAD) lesions. Among them, the ALPSA lesion was separated into two subgroups, free ALPSA lesion and adherent ALPSA lesion.

The ALPSA lesion is commonly seen with chronic ASI and reflects avulsion of the anterior inferior labrum and IGHL from the anterior inferior glenoid with an intact scapular periosteum.

Two recent studies 139,142 have shown that the arthroscopic repair of ALPSA lesions fails nearly twice as often as the Bankart lesion, which may be attributed to the result of the initial damage...

2013年10月2日 · MRA yielded 16 diagnoses of Bankart lesions, 5 of ALPSA lesions, and 14 of Perthes lesions. Albeit invasive, MRA seems to be a more reliable and accurate diagnostic imaging modality for the classification and treatment of instabilities compared to standard MRI.