Fig. 3

Intraoperative images a Displaced tibial eminence fracture under arthroscope. b, c The internal anchors were placed at the posterior internal and posterior outer edges of the avulsed fracture fragment. d, e Sutures were passed through the tendon-bone transitional zone adjacent to the fracture fragment. f Arthroscopic knot fixation. g Two external anchors were implanted. h Final suture bridge construct with suture limbs passing over surface of reduced tibial spine fracture