[Clinical application of universal spine system in reconstruction of lumbar sacrum joint after resection of sacrum tumor].
OBJECTIVE
To investigate the operative indications and techniques of the universal spine system (USS) in reconstruction of the stability of the lumbar-sacrum joint after resection of sacrum tumor.


METHODS
Nine patients were treated with USS after resection of sacrum tumor. Among them, there were 6 males and 3 females, aged from 34-60 years. The operation could be divided into four main procedures: 1. to resect sacrum tumor; 2. to insert the pedicle screw into the normal pedicle (L3 or L4 or L5) above the region of laminectomy; 3. to insert the lower screw into the iliac plate; 4. to put the rods, bone graft and links.


RESULTS
There was no recurrence of sacrum tumor by MRI examination during 7-17 month follow-up. The pains of the lumbar-sacrum joint and the spinal nerve root were relieved obviously. The patients could stand and walked normally. There was no loose screw and no fracture of the screw and the rod. There was no appearance of the enlarged screw passage, the lessened pelvis and lowed L5 spine.


CONCLUSIONS
Reconstruction of the lumbar-sacrum joint by the USS after resection of sacrum tumor is a practical operation clinically. It is characterized by the easy manipulation, few complication and stable fixation.
Jie
Qiang
Q
Department of Orthopedic Surgery, 4th Military Medical University, Xi'an Shaan, P. R. China 710032.
Wang
Zhen
Z
Wang
Ling
L
D000328:Adult; D001863:Bone Screws; D005260:Female; D006801:Humans; D016268:Internal Fixators; D007593:Joint Instability / Q000534:rehabilitation / Q000601:surgery*; D008159:Lumbar Vertebrae / Q000000981:diagnostic imaging / Q000601:surgery*; D008297:Male; D008875:Middle Aged; D011859:Radiography; D019651:Plastic Surgery Procedures; D012446:Sacroiliac Joint / Q000601:surgery; D012447:Sacrum / Q000000981:diagnostic imaging / Q000601:surgery*; D013125:Spinal Neoplasms / Q000534:rehabilitation / Q000601:surgery*