[Hemicorporectomy as the Highest Grade of En Bloc Sacrectomy].

Hemicorporectomy or translumbar amputation is an extensive surgical procedure consisting in removing the lower portion of the body. Thakur et al. found a total of 71 hemicorporectomies described in literature before 2017. In the form of a case study we present the case of our patient with terminal pelvic osteomyelitis, in whom hemicorporectomy was subsequently performed, namely from the spine surgery perspective. The man, 19 years old, was exposed to high-voltage electricity and fell down from a height of 4 meters. He suffered an instable comminuted fracture of T10 (AO A3.3.) with paraplegia (Frankel A) and multiple third-degree burns affecting 25% of his total body surface area. Subsequently, the patient underwent a total of 16 surgical procedures performed by medical experts in various specialties (orthopaedic surgery, general surgery, plastic surgery, urology, vascular surgery), but in spite of that the extensive pelvic osteomyelitis has not been successfully managed. At first, urine and stool diversion were performed. After 3 weeks, i.e. 18 months after the injury, the removal of the lower portion of the body was scheduled. The hemicorporectomy was divided into 4 stages. The surgery started by posterior transecting the spine at L4-L5 segment with nerve root and dural sac ligation and treating the bleeding venous plexus in the spinal canal. After turning the patient to the supine position, the second stage of the operation followed, consisting in transecting large vessels and harvesting a musculocutaneous flap from the right thigh. During the third stage of the surgery the separation of the L4-L5 motion segment was completed by the transaction of the anterior longitudinal ligament and m. psoas major, subsequently followed by the amputation of the lower portion of the body. During the last stage of the surgery, the wound was closed by musculocutaneous flap from the fight thigh with preserved a. femoralis. The patient was discharged to home in a generally good condition 127 days after the amputation of the lower portion of the body. Now, 1 year after the surgery, the patient enjoys good physical as well as mental health. Hemicorporectomy is an extensive surgical technique, which can despite multiple complications be offered to patients with otherwise unmanageable condition. Terminal pelvic osteomyelitis is currently the most frequent diagnostic indication and the resulting condition makes possible a long-term survival of the patient in a satisfactory condition. The spinal surgeon is an irreplaceable member of the multidisciplinary team performing the surgical procedure, the primary treatment of the spinal column considerably limits blood losses. Key words: hemicorporectomy, en bloc sacrectomy, terminal pelvic osteomyelitis, sacral tumors.