The effect of platelet rich plasma from bone marrow aspirate with added bone morphogenetic protein-2 on the Achilles tendon-bone junction in rabbits.

Background: To determine if exogenously injected bone marrow derived platelet-rich plasma (PRP) plus bone morphogenetic protein (BMP)-2 could accelerate the healing of bone-tendon junction injuries and increase the junction holding strength during the early regeneration period.

Methods: A direct injury model of the bone-tendon junction was made using an Achilles tendon-calcaneus bone junction in a rabbit. In the PRP/BMP-2/fibrin group, 0.

Augmentation of autologous hamstring graft during anterior cruciate ligament reconstruction using the bone chip technique.

The use of autologous quadrupled hamstring tendon graft is a well-known technique for anterior cruciate ligament reconstruction. In cases where the diameter of the graft is inadequate, the stability of graft fixation and subsequent bone to tendon healing may be compromised. We describe a new technique to augment the autologous double looped hamstring tendon graft during anterior cruciate ligament reconstruction using cancellous bone chips.

Arthroscopic femoral tensioning and posterior cruciate ligament reconstruction in chronic posterior cruciate ligament injury.

For the new arthroscopic femoral tensioning and posterior cruciate ligament (PCL) reconstruction in chronic PCL injury, we make a transtibial tunnel, using the posterior trans-septal portal, while preserving the remnant bundle of the original PCL and meniscofemoral ligament. Also, to preserve the remnant femoral fibers of the PCL and provide femoral tensioning, we manipulate the suture hook with No.1 PDS by hand so that the sharp tip penetrates the remnants of the PCL near the femoral attachment site.