Popliteal Artery Pseudoaneurysm Following Primary Total Knee Arthroplasty

doaneurysm in a patient with normal palpable pulses, but with swollen knee and ankle with a functional disability, intractable pain in the popliteal fossa, and weakness of ankle dorsiflexors. Case ReportA 61-year-old woman who underwent bilateral TKA at a different institution, presented to our emergency orthopedic department on the third postoperative day with right knee and calf swelling, intolerable pain in the right lower limb, and weakness of right ankle dorsiflexors.Based on her surgery records, it was determined that the procedure involved an anterior midline skin incision followed by medial subperiosteal release along the proximal tibia via a medial parapatellar approach and implantation of a cemented knee prosthesis without tourniquet control (Fig. 1).There were no records available on the thromboembolic prophylaxis employed during the surgery, and the procedure was uneventful.She had no previous history of arterial disease or cardiovascular risk factors and trauma.However, the patient experienced weakness of right ankle dorsiflexors in the immediate postoperative period, which was diagnosed as common peroneal nerve palsy.The overall condition of the patient and the status of the right lower limb were good.Moreover, postoperative limb pulsation was present.The patient was immediately transferred to our emergency department and opioid analgesics were administered intravenously for pain relief.A thorough examination of the patient revealed a stable medical status and maintenance of vital