Illustration 1 • Intact anterior cruciate ligament
Illustration 2 • Torn anterior cruciate ligament
Illustration 3 • Drilling of bone channels
Illustration 4 • Preparing of tendon to be transplanted
Illustration 5 • Insertion of tendon graft into joint
Illustration 6 • Anchoring graft in femor and shank with resorbable pin and screw
Illustration 7 • Transplanted tendon
Traumatic rupture of the anterior cruciate ligament leads to instability in the knee joint. If this instability cannot be remedied through muscle building training, the anterior cruciate ligament needs to be replaced.
This is done arthroscopically with autologous tendon tissue. The transplanted tendons are attached to the femur and shank with absorbable material. First, a small incision yields an autologous tendon (patella tendon or semi-tendinosus and gracilis tendon). Then, the required bone channels are drilled into femur and shank with an aiming device. After inserting the tendon into the joint, it is anchored above and below.