ABSTRACT
Objective To explore the problems and countermeasures for the communication equipment supportability of newly established field medical unit. Methods The characteristics of the communication equipment assigned to the field medical unit were introduced, and the problems of the equipment were summarized during 2-a exercise, examination, training and etc of the field medical unit, then some countermeasures were put forward accordingly. Results The communication equipment had problems in low utilization rate, training, operation procedure and safety, and the countermeasures were brought out from the aspects of emphasis from the director, personnel training, technical performances of the communication equipment and etc. Conclusion The communication equipment needs improving to support the commanding system of the field medical unit although it behaves better than the original equipment.
ABSTRACT
<p><b>OBJECTIVE</b>To analyze the application of vertebral pedicle screw fixation in the treatment of burst fracture of thoracolumbar vertebrae.</p><p><b>METHODS</b>A total of 48 cases (31 males and 17 females, aged from 18-72 years, mean: 41.3 years) with thoracolumbar vertebrae burst fracture were treated by pedicle screw system since January 2004. According to the AO classification of thoracolumbar vertebrae fracture, there are 36 cases of Type A, 9 of Type B and 3 of Type C.</p><p><b>RESULTS</b>All patients were followed up for 6-25 months (average 12 months), no secondary nerve root injury, spinal cord injury, loosening or breakage of pedicle screw were observed. The nerve function of 29 patients with cauda equina nerve injury was restored to different degrees. The vertebral body height returned to normal level and posterior process angle was rectified after operation.</p><p><b>CONCLUSIONS</b>The vertebral pedicle screw internal fixation was technologically applicable, which can efficiently reposition and stabilize the bursting fractured vertebrae, indirectly decompress canalis spinalis, maintain spine stability, scatter stress of screw system, reduce the risk of loosening or breakage of screw and loss of vertebral height, and prevent the formation of posterior convex after operation.</p>