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Fig. 4 | BMC Musculoskeletal Disorders

Fig. 4

From: Anatomy and histomorphology of the flexor digitorum profundus enthesis: functional implications for tissue engineering and surgery

Fig. 4

The Fibrocartilaginous FDP Enthesis. The FDP insertion demonstrates the 4 zones of a fibrocartilaginous enthesis: tendon (T), uncalcified fibrocartilage (UF), calcified fibrocartilage (CF) and bone. The cortical bone (CB) is as thin as the trabecular bone (TB). The calcified fibrocartilage lies between the tidemark (black arrows) and the tendon-bone junction (grey arrows). Fibrochondrocytes (white arrows), rounded and lying in lacunae within cartilage matrix, indicate cartilaginous areas and generally align in rows. Tendon collagen fibre bundles are continuous through the fibrocartilage areas to attach to the cortical bone. Photomicrograph of a typical mid-sagittal section FDP enthesis, H + E

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BMC Musculoskeletal Disorders

ISSN: 1471-2474

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