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

Figure 1

Supraspinatus with full-thickness tendon tear with no retraction (specimen representative of category B). Superior view of the middle part of the muscle belly with acromion removed. Fiber bundles of the superficial parts of anterior and posterior regions have been removed. Specimen stabilized with metal plate. Anterior part of supraspinatus tendon represented by ; middle part of anterior region (AM); middle part of posterior region (PM). Fiber bundles of deep parts lie deep to the AM and PM. Arrow (↑) points to a full-thickness tear illustrated on the supraspinatus tendon.