Treatment of lower lumbar fracture with the USS pedicel screw system
- VernacularTitle:USS椎弓根钉系统治疗下腰椎骨折
- Author:
Wen YUAN
;
Xinwei WANG
;
Deyu CHEN
;
- Publication Type:Journal Article
- Keywords:
Lower lumbar;
Fracture;
Pedicel screw
- From:
Chinese Journal of Orthopaedic Trauma
2004;0(11):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To report the clinical outcome of L3～L5 fractures treated with USS short segmental pedicel screw system. Methods From 1994 to 2004, 57 cases of lower lumbar fractures were treated, of which 21 cases were treated with USS pedicel screw system. There were 12 cases of L3 fracture, 8 cases of L4 fracture and 1 cases of L5 fracture. The intervertebral height and lumbar lordosis were evaluated both before and after operation, the spinal impingement of bone was evaluated on CT scan, the neurofunction was evaluated with Frankle system and the clinical outcomes were evaluated with Charles system. Results The operation time ranged from 90 min to 150 min, averaging 120 min. The bleeding volume ranged from 100 ml to 600 ml, averaging 350 ml. The Frankle scores increased from 3.7 to 4.5 after operation. The intervertebral height of the fractured vertebral body increased from preoperative 30%to 60%to postoperative 70%to 100%(averaging 87%). The lumbar lordosis angel increased from preoperative 35.2?8.3o to postoperative 38.3?10.2o. The mobilization time was 3d to 2w, and the time for resuming work was 3 to 6w. The 3 to 30 months follow ups (averaging 15m) showed that the clinical outcomes were excellent in 9 cases, good in 9 cases, fair in 2 in and poor in 1. Conclusion The advantages of treating the lower lumbar fractures with short segmental USS pedicel screw system are effective restoration of intervertebral body height, lumbar lordosis and spinal volume, prevention of long term lumbago and lumbar stenosis, as well as early mobilization and return to work.
