The posterior cruciate ligament is an important structure to maintain the stability of the knee joint, and its injury can cause posterior instability of the knee joint, leading to increased pressure on the patellofemoral joint and accelerated knee degeneration. Arthroscopic-assisted anterior and posterior cruciate ligament reconstruction is one of the more complex procedures in knee arthroscopy, especially posterior cruciate ligament reconstruction. Since 2007, we have been performing arthroscopic-assisted single-incision reconstruction of the posterior cruciate ligament via the tibial tunnel with the 4-strand N cord tendon. This technique uses a 4-cm incision, 2-3
The procedure was completed with one 4-cm incision and 2-3 arthroscopic accesses (about 0.5-1 cm per access). However, due to the proximity of the lower end of the posterior cruciate ligament to the N vessels and nerves, its surgical safety has always been a concern for orthopedic surgeons. In response to this problem, Dr. Yuan Zhenfeng, deputy chief of the Department of Orthopedics of Liaocheng People’s Hospital, developed a posterior cruciate ligament reconstruction protector for use during surgery and preserved the tibial stop of the posterior cruciate ligament. This method can precisely limit the depth of the guide pin and bone drill during the tibial tunnel making process, avoiding them from drilling too deep and damaging the posterior vascular nerve and other important structures, making the posterior cruciate ligament reconstruction safer and shortening the operation time greatly, and the preserved tibial stop of the posterior cruciate ligament helps the healing of the new ligament. Recently, we have completed more than ten cases of posterior cruciate ligament reconstruction using this technique, and achieved good results after follow-up.