CPT® Code 27566

The CPT® Code 27566 refers to the open treatment of a patellar dislocation, which can occur due to trauma or a biomechanical imbalance in the knee joint, such as a condition known as patella alta, where the patella (kneecap) is positioned higher than normal. This procedure may involve a partial or total patellectomy, which is the surgical removal of part or all of the patella. The open reduction of an acute patellar dislocation is typically performed through an anterior approach, allowing the surgeon to directly access the patella and surrounding structures. During the procedure, the patella is carefully exposed and inspected, and any loose bodies that may hinder the reduction process are removed. Once the patella is manipulated back into its proper position, a second set of radiographs may be taken to confirm the successful reduction. In cases where the patella is severely damaged or requires excision, the muscles and tendons attached to it are divided, ensuring that the quadriceps tendon above and the patellar tendon below are preserved. After the patella is removed, the quadriceps and patellar tendons are sutured back together, and the soft tissues and skin are closed in layers. Post-surgery, the knee may be protected and immobilized using a compression wrap, splint, or cast to facilitate healing and recovery.