Liu Moumou, 40 years old, male. Car accident resulted in knee swelling and pain, impaired mobility, and inability to walk. Minimally invasive surgery for reconstruction of the anterior and posterior cruciate ligaments of the knee using the arthroscopic LARS artificial ligament with small incisions, minimal bleeding, and minimal surgical trauma was performed, and he recovered quickly after surgery and returned to work. Pre-operative MRI Pre-operative frontal and lateral views of the knee Post-operative frontal and lateral views of the knee (the screws fixing the artificial ligament can be seen) The surgical incision is a minimally invasive incision of approximately 0.5-1.5cm in length