Fig. 5
From: Remnants-preserving ACL reconstruction using direct tendinous graft fixation: a new rat model
Representative, transverse histological sections of the intraarticular compartment at 12 weeks. A Representative transverse histological section of a normal ACL from a right non-operated knee and A’ its magnification, B representative transverse histological section of a severely degenerative ACL from the left operated knee of a specimen belonging to the IT group and B’ its magnification; note the increased angiogenesis (arrows), cystic changes (arrowheads), and general disorganization of collagen fibers in this IT specimen. C Transverse histological section of a mildly degenerative ACL coming from the left knee of a specimen pertaining to the AG group and C’ its magnification. MFL: menisco-femoral ligament; AG: autograft; ACL: anterior cruciate ligament; FB: femoral bone. Stevenel’s blue and picrofuchsin staining. Bone, cells, and autograft stained pink, blue, and brown, respectively. Scale bars: 200 µm