Change in the Pathologic Supraspinatus: A Three-Dimensional Model of Fiber Bundle Architecture within Anterior and Posterior Regions

Figure 2

Retracted full-thickness tendon tear of supraspinatus without a distinguishable posterior region modelled throughout its volume in 3D (specimen from category C). (a) Superior view of specimen with lateral aspect of spine of scapula removed; superficial part of anterior region (AS); middle part of anterior region (AM); intramuscular portion of anterior supraspinatus tendon. Metal plate (bottom left) was used to stabilize the specimen and screws (scapular spine, coracoid process, and greater tubercle) were used in modeling process. (b) Computer model of anterior region including AS (red fibers) and AM (yellow fibers). (c) AM; AS not shown; (d) deep part of anterior region (AD) (pink fibers); AS, AM, and tendon are not shown.