Breed: Bichon Frise, nickname: Doudou Age: 1.5 years old Gender: Mother Weight: 4.8Kg The patient sought medical attention due to patellar dislocation and was diagnosed with grade 3 patellar dislocation on the left side and grade 2 patellar dislocation on the right side. It was decided to undergo a left trochlear groove replacement surgery first. During the operation, the BlueSAO bio-type pulley groove replacement system (PGR) implant was used for replacement. The operation was successfully completed. Hope you recover soon! Thank you, Dr. Guan Narisu from Shanghai Shengtai Pet Hospital, for sharing the clinical case of the BlueSAO Biological pulley groove replacement system! The pulley groove replacement surgery will bring a painless joint to patients with patellar dislocation. Doctor Jia Xinsheng's view is that the pulley groove replacement surgery will bring a painless joint to patients with patellar dislocation, and he suggests that the pulley groove replacement surgery be adopted for eligible cases of patellar dislocation. For instance, cases where the pulley groove is flat, deformed, poorly developed, too narrow, or where the veterinarian's assessment of the deepening of the pulley groove fails to yield effective results, etc., all recommend the use of pulley groove replacement