Breed: Border Collie, nickname: Potato cake Age: 1 year old Gender: Female (sterilized) Weight: 17Kg Sudden persistent claudication occurred in the right hind limb. Palpation of the knee joint of the right hind limb showed swelling, and the drawer test was positive. During the operation, a new arthroscopic device from BlueSAOwas used for further examination. The final diagnosis was a complete rupture of the anterior cruciate ligament, while the posterior cruciate ligament was healthy and intact. At the same time, the arthroscopic examination showed that the meniscus was healthy. It was decided to undergo TPLO surgery for treatment. During the operation, the BlueSAO TPLO-8.5 mm R pure titanium locking bone plate was selected for internal fixation. The operation was successfully completed and the postoperative recovery is good. I hope you will recover soon! Thank you very much to Teacher Du Lang from Kunming Hengjia Pet Hospital for sharing the clinical case of BlueSAO arthroscopy! Facing the difficult problem of claudication that is hard to diagnose, BlueSAOarthroscopy breaks the diagnostic deadlock. As the "third sharp eye" in clinical diagnosis and treatment, it uses minimally invasive exploration to delve into the minute details of joints, precisely capturing clues of lesions and dispelling the thick fog of scientific diagnosis and treatment.