CPT® Code 27552

Knee dislocation is classified as a relatively uncommon yet serious injury that necessitates prompt recognition and treatment to prevent complications such as vascular impairment. This condition occurs when the bones that form the knee joint are displaced from their normal alignment. The urgency of treatment is underscored by the potential for vascular compromise, which can lead to severe consequences if not addressed swiftly. During the evaluation of a knee dislocation, healthcare providers assess peripheral pulses to determine if there is any vascular impairment. In cases where vascular impairment is detected, the physician may proceed with reduction of the dislocation without the need for pre-reduction radiographs, prioritizing immediate intervention. Conversely, if peripheral pulses are intact, it may be appropriate to obtain separate radiographs to assess the extent of the injury. The reduction process typically involves the application of longitudinal traction to realign the dislocated joint. After the successful reduction, a follow-up set of radiographs may be taken to confirm proper alignment. Post-reduction care includes splinting the leg, along with instructions for the patient to ice and elevate the knee to manage swelling and promote healing. It is important to note that CPT® Code 27552 is specifically used when the closed treatment of the knee dislocation requires anesthesia, whereas CPT® Code 27550 is applicable when the treatment is performed without anesthesia.