患者男，21岁，不慎从3米高处坠落，双足着地，出现双足跟肿胀疼痛，腰痛不能站立。查体：腰1棘突有压痛和叩击痛，双足足跟部肿胀，触痛（+），可触及骨擦音，双下肢感觉正常，双足伸足、伸趾正常，双膝关节伸屈正常。
关于胸腰椎骨折脊髓手术探查的适应证，以下叙述正确的是（）
A.椎管内有骨折块压迫脊髓者，如椎板骨折下陷压迫脊髓者，需行椎板切除减压，椎体骨折自前方压迫脊髓者，行侧前方减压
B.患者为完全截瘫，估计脊髓并未横断，而为完全性脊髓损伤者，或者严重不全截瘫，拟对脊髓进行探查治疗者
C.腰椎严重骨折脱位，完全截瘫，估计马尾横断，拟手术缝合修复者
D.不完全截瘫，伴有严重神经根疼痛，表示神经根被压者，或者神经症状进行性加重者
E.无神经症状者
F.以上均适合
参考答案：A, B, C, D
| 补全对话。 |
| A: Bob, 1 B: Yes, I do. A: 2 B: They are on the bookcase. A: Let's play computer games. B: 3 Let's play soccer! A: OK. Do you have a soccer ball? B: 4 But I don't know where it is. A: look, 5 B: Oh, it's under my bed. |
| ( )1. A . Do you have computer games? C. Do you play sports? ( )2. A. Who are they? C. Where's it? ( )3. A. I like computer games. C. That sounds relaxing. ( )4. A. Yes, I do. C. Yes, I am. ( )5. A. is it under your table? C. Where is it? | B. Do you have a video tape? D. Do you like ice cream? B. What are they? D. Where're they? B. But I don't like computer games. D. It's fun. B. No, I don't. D. No, you don't. B. It's under your bed. D. What's this? |