1. Traditional scheme is core decompression technique using trephine.

2. Conclusion:The diagnose of hypoplastic MDS depends on the trephine biopsy.

3. This paper deals with the double trephine technique in scleral groove and the analysis of longterm postoperative results of various types of glaucoma (110 eyes).

4. Objective:To explore the value of trephine biopsy in diagnosing acute leukemia with reticulin myelofibrosis.

5. Posterior iliac crest trephine biopsy in every patient who need do bone marrow aspired test,(sentence dictionary) and observe the pathology changes in bone marrow.

6. The use of trephine in ankle fusion by lateral approach is proved to be a simple technique with high union rate.

7. Objective To determine the distribution of reticulin fibre and megakaryocyte in bone marrow biopsy(Trephine biopsy)of chronic myelogenous leukemia (CML).

8. Conclusions The use of trephine in ankle fusion by lateral approach was proved to be a simple technique with high union rate.

9. Bone marrow trephine biopsy as well as smear for cytological examination were conducted.

10. Conclusion:Subtotal resection of vertebral body with internal fixation is more efficient and reliable than simple trephine decompression in treatment of single level CSM.

11. Methods Cultured monolayer-confluent human RPE cells were scraped with a trephine and a cotton stick, and set up the injured model of RPE cells with round scraped area.

12. To introduce a new technique of ankle arthrodesis with trephine by lateral approach and evaluate its clinical effects.

13. Methods:That of aspiration lomparatue analysis of diagnosis result of trephine biopsy and aspiration with in 53 MDS patients.

14. Objective To introduce a new technique of ankle arthrodesis with trephine by lateral approach and evaluate its clinical effects.

15. Objective:To compare the value between subtotal resection of vertebral body with internal fixation and simple trephine decompression in treatment of CSM.

16. Results:Reticulin myelofiberosis led to pseudohypoplastic leukemia shown in bone marrow smear, which could be corrected by trephine biopsy.

17. Conclusion:The diagnose of acute leukemia with reticulin myelofibrosis should combine the bone marrow aspiration with trephine biopsy.

18. Objective:To compare the value between subtotal resection of vertebral body with internal fixation and simple trephine decompression in treatment of single level CSM.