This medical exhibit illustrates the classic case of orthopedic surgery for the reconstruction of the anterior cruciate ligament (ACL). The surgical steps describe the important aspects of the procedure, including insertion of the arthroscopic instruments, knee incision, drilling of the tibia and femur, and placement of the patellar graft. A post-operative illustration of the knee with a cut-away view of the femur shows the final position of the reconstructed ligament and hardware used.