Safety of the application of Rigidfix cross-pin system via different tibial tunnels for tibial fixation during anterior cruciate ligament reconstruction.

Background: We investigate the safety of the application of the Rigidfix cross-pin system via different tibial tunnels in the tibial fixation during anterior cruciate ligament (ACL) reconstruction.

Methods: Five adult fresh cadaver knees were fixed with the Rigidfix cross-pins in the tibial fixation site during ACL reconstruction. Two different tibial tunnel groups were established: in group A, the tunnel external aperture was placed at the 25° angle of coronal section; in group B, the tunnel external aperture was placed at the 45° angle of coronal section.

[Intrafix fixation and remnants preservation in single-tunnel double-bundle reconstruction of anterior cruciate ligament with anatomical placement of hamstring tendons].

Objective: To study the feasibility and short-term effects of Intrafix fixation and remnants preservation in single -tunnel double-bundle reconstruction of anterior cruciate ligament (ACL) with anatomical placement of hamstring tendons.

Methods: From August 2011 to November 2011, 25 patients with ACL injuries were treated with arthroscopic reconstruction of ACL using hamstring tendon. There were 19 males and 6 females, with a mean age of (26.