Fig. 2From: The hydroxyapatite modified 3D printed poly L-lactic acid porous screw in reconstruction of anterior cruciate ligament of rabbit knee joint: a histological and biomechanical studyPLLA interface screw support physical properties. a the 3D design structure of the PLLA interface screw support. b a general view of PLLA screws manufactured by 3D printing. c the SEM view of PLLA screw stent shows a uniform and orthogonal stent structureBack to article page