Fig. 2From: Arthroscopic microfracture with atelocollagen augmentation for osteochondral lesion of the talus: a multicenter randomized controlled trialArthroscopic images showing the steps of microfracture with atelocollagen augmentation. a, Chondral lesion of the talus was evaluated. b, Microfracture was performed. c, The gel, atelocollagen, and fibrin mixture was slowly applied to the defect. d, Stability was verified by repeated dorsiflexion and plantarflexion of the ankle jointBack to article page