Fig. 1From: Quantitative assessment of neural elements in a rat model using nerve growth factor after remnant-preserving anterior cruciate ligament reconstruction: a histological and immunofluorescence pilot studyAchilles tendon was grafted for ACL reconstruction. a Achilles tendon exposure. b, c Split Achilles tendon. d Frozen Achilles tendon thawing in warm saline (47 °C for 5 min)Back to article page