Figure 4.
Histological examination of injured flexor digitorum profundus tendon at Week 2 and Week 6 after the surgery (H&E, 12.5× optical magnifications). Higher magnification (200×) view of the wound is shown in the corner. Wound: the wound resulted from 50% tenotomy. FDP = flexor digitorum profundus tendon; FDS = flexor digitorum sperficialis tendon; H&E = hematoxylin and eosin; Trolox = 6-hydroxy-2,5,7,8-tetramethylchroman-2-carboxylic acid. Yellow arrow indicates the boundary of wound; white asterisk indicates fibrosis and adhesion; red rectangle indicates the higher magnification area.