- See
Reverse Hill Sach Lesion:
- Discussion:
- posterolateral humeral head indentation fracture is created occuring from
anterior shoulder dislocation, as soft base of
humeral
head impacts against relatively hard anterior glenoid;
- occurs in 35-40% of anterior dislocations & upto 80 % of recurrent dislocations;
- during
shoulder arthroscopy this lesion is sometimes confused w/ the normal bare area of the postero-inferior aspect of the humeral head;
- it is noteworthy that the Hill sachs lesion occurs thru the cartilagenous surface of the humeral head and that often there will remain a
small island of cartilage located between the bare area and the Hill Sachs lesion;
- Hill Sachs Lesion may destabilizes glenohumeral joint & may predispose to further dislocation;
- Radiographs:
- combination of
AP view in int rotation &
Stryker Notch view allow evaluation of Hill Sachs Lesions in posterolateral aspect of humeral head;
-
AP View:
- this defect is visualized on AP x-ray w/ arm in internal rotation & may be missed on routine AP views;
Radiographic views in recurrent anterior shoulder dislocation. Comparison of six methods for identification of typical lesions.
