ANATOMY SOME ANATOMY TO BEGIN: To more accurately find subscapularis tears we need to have a good understanding of the anatomy of its insertion. These are the key landmarks for understanding the insertion. Lesser Tuberosity ( Blue arrow in image below). Bicipital Groove ( Green arrow in image below). Surgical Neck of Humerus ( Yellow …
2 TYPES OF FULL THICKNESS TEARS We are going to look at the 2 types of Full Thickness Tears Full Thickness ( Incomplete or Localised) Full Thickness ( Complete) This terminology becomes a bit confusing so lets look at the difference. ANATOMY AND CLASSIFICATION OF FULL THICKNESS TEARS SOME ANATOMY TO BEGIN: There are three …
We can describe three types of Rotator Cuff Tendon Tears Partial Thickness Full Thickness Delaminating Tears 3 TYPES OF PARTIAL TEARS ANATOMY AND CLASSIFICATION OF PARTIAL TEARS SOME ANATOMY TO BEGIN: There are three surfaces to a tendon Bursal ( Pink arrow) Intrasubstance ( Yellow Arrow) Articular ( Orange arrow) The Blue arrow demonstrates the …
Degeneration of the Rotator Cuff Tendons can have three appearances Fraying Tendonosis Delamination FRAYING: What is it and What to Look For. WHAT IS IT: Fraying is irregularity of the surface of the SST or IST. It is not a tear. WHAT AND WHERE TO LOOK FOR: Fraying occurs on the BURSAL SURFACE of the …
Before we look at the pathology lets start with anatomy. We will concentrate on SST and IST and will do Subscapularis in a different post. Because there is no plane between the SST and IST tendons, one of the difficulties is in determining on MRI which tendon is involved when there is a tear at …
WHAT IS A DELAMINATING TEAR: This is an intrasubstance tear ( i.e within the tendon) which extends along the length of the tendon The tear runs parallell to the tendon. Often there will be a connection to the articular surface. Image Above: Delaminating tears of SST ( blue arrows) which have propagated along the length …
KEY CONCEPTS FOR FINDING SUBSCAPULARIS TEARS The best way to identify tears of the Subscapularis tendon is to look at the Sagittal PDFS first. Start at the bicipital groove and the immediate next slice medially will be subscap insertion ( Pink arrows) on the lesser tuberosity ( Yellow arrows look for flattening of the humeral …
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