Corrigendum to ?Emergency decompression and stabilization of 1st thoracic spinal cord injury and sacral fracture in a Covid-19 patient: A case report? [Int. J. Surg. 81 (2021) 105670] (International Journal of Surgery Case Reports (2021) 81, (S221026122100170X), (10.1016/j.ijscr.2021.105670))