1. Osteotomies for Correction of Kyphotic Deformity. 上海國際脊柱畸型研討會,上海(April 8,2007).
2. How to Safely Approximate the Best Possible Correction of Scoliosis with the Least Segments Involvement. 上海國際脊柱畸型研討會,上海(April 8,2007).
3. Osteotomies for Correction of Kyphotic Deformity. 海峽兩岸脊柱外科研討會,上海(April 9,2007).
4. How to Safely Approximate the Best Possible Correction of Scoliosis with the Least Segments Involvement. 海峽兩岸脊柱外科研討會,上海(April 9,2007).
5. Osteotomies for Correction of Kyphotic Deformity. 南京骨科醫學會,南京(April 10,2007).
6. How to Safely Approximate the Best Possible Correction of Scoliosis with the Least Segments Involvement. 南京骨科醫學會,南京(April 10,2007).

7. Surgical Correction of Spinal Deformities.台南奇美,臺灣神經脊柱外科醫學會(Jun 10,2006).
8. Closing Wedge Osteotomy versus Opening Wedge Osteotomy in Ankylosing Spondylitis with Thoracolumbar Kyphotic Deformity. 第一屆中國骨科醫學會國際會議,北京(Nov,12-15,2006).
9. How to Safely Approximate the Best Possible Correction of Scoliosis with the Least Segments Involvement. 第一屆中國骨科醫學會國際會議,北京(Nov,12-15,2006).
10. New Techniques For Surgical Correction of Spinal Deformities. 中國第七屆脊柱疾病器械內固定手術新發展學習班,廣東省廣州市(Nov,9-12,2006).
11. Sagittal Translation in Opening Wedge Osteotomy for Correction of Thoracolumbar Kyphotic Deformity in Ankylosing Spondylitis. 第一屆中國骨科醫學會國際會議,北京(Nov,12-15,2006).

2005

12. Closing Wedge Osteotomy Versus Opening Wedge Osteotomy in Ankylosing Spondylitis with Thoracolumbar Kyphotic Deformity 臺北三總,臺灣脊柱外科醫學會(Apr 16,2005).
13. How to Safely Approximate the Best Possible Correction of Scoliosis with the Least Segments Involvement 臺北三總,臺灣脊柱外科醫學會(Apr 16,2005).
14. Sagittal Translation in Opening Wedge Osteotomy for Correction of Thoracolumbar Kyphotic Deformity in Ankylosing Spondylitis 臺北三總,臺灣脊柱外科醫學會(Apr 16,2005).
15. Sagittal Translation of Spinal Deformities 桃園,北區骨科醫學會(Mar,2005).

2004

16. Surgical Correction of Spinal Deformities. 彰化，中區醫學會(Nov, 2004).
17. Apical Lordosating Osteotomy and Minimal Segments Fixation for Thoracic or Thoraolumbar Osteoporotic Kyphosis due to VCF. Indonesia, 2004.
18. How to Safely Approximate the Best Possible Correction of Scoliosis with the Least Segments Involvement. Indonesia, 2004.

2003

19. Surgical Correction of Spinal Deformities中區醫學會(NOV,2003) 彰化.

2002

20. Lever Maneuver for Large and Rigid Scoliosis, The Association of surgery, R.O.C. (April 20,2002) 臺北.
21. King II Curves Treated by Lever Maneuver, Diapason Club Personal Invitation International History(June26-27,2002), Margaux France,June26-27,2002.

2001

22. Spinal Deformity Correction With Diapason System by Lever Mechanism Stryker Spine, Bordox, France (April, 2001).
23. Lever Maneuver for Rigid Scoliosis, 7th Stryker Spine Ivitational Symposium, Sardinia, Italy (September,2001).

1994

24. Surgical Management of Thoracolumbar Injuries, WPOA, (April 27-30,1994) 臺北.

1993

25. Correction of Throacic Kyphosis in Ankylosing Spondylitis Using Multiple Spinal Osteotomy, and Combined Zielke's DKS and Posture Correction-Fixation, The Orthopaedic Society of R.O.C. (Oct 21-23,1993) 臺北.

1992

26. One Herbert Double-threated Compression screw fixation of Fixation of Displaced type II Odontoid Fractures, The Orthopaedic Society of R.O.C. (Oct 16-17,1992) 臺北.
27. Disc Excision and Interbody Fusion for Lumbar Discogenic Pain, The Orthpaedic Society of R.O.C. (Oct 16-17,1992) 臺北.

1991

28. Oligosegmental Correction of Post-traumatic Thoracolumbar Angular Kyphosis, The Orthopaedic Society of R.O.C. (Oct 19-20,1991) 臺北.

1990

29. Late Anterior Decompression for Incomplete Neural Deficit Secondary to Thoracolumbar Fractures, The North America Spinal Society (Aug 8-11,1990) Las Vagas, USA.
30. Mechanism of Anatomic Reduction of Thoracolumbar Burst Fractures, The International Conference of Spinal Surgery (Nov 16-18,1990) 臺北.
31. Reduction-Fixation Instrumentation System for Unstable Thoracolumbar Fractures The International Conference of Spinal Surgery (Nov 16-18,1990) 臺北.
32. Late Anterior Decompression for Incomplete Neural Deficit Secondary to Thoracolumbar Fractures, The Orthopaedic Society of R.O.C. (Oct 19-20,1990) 臺北.
33. Degenerative Spondylolisthesis Treated with RF System, The Orthopaedic Society of R.O.C (Oct 19-20,1990) 臺北.
34. A RF System for Unstable Thoracolumbar Fractures, The Orthopaedic Society of R.O.C. (Oct 19-20,1990) 臺北.
35. Surgical Treatment of Metastatic Tumors of The Spine, The Orthopaedic Society of R.O.C. (Oct 19-20,1990) 臺北.

1989

36. Surgical Treatment of Metastatic Tumor of The Spine, The Orthpaedic Society of R.O.C. (Oct 19-20, 1989) 臺北.

1987

37. Distraction Arthodesis for Lumbar Spinal Stenosis Due to soft Tissue Problems, The Orthopaedic Society of R.O.C. (Oct,1987) 臺北.
38. Combination Spinal Rod-plate and Transpedicular Screw Instrumentation System for Unstable Thoracolumbar Fractures The Orthopaedic Society of R.O.C.(Oct 19-20,1987) 臺北.

1986

39. Multiple Noncontiguous Vertebral Injury, The Orthopaedic Society of R.O.C. (Oct 19-20,1986) 臺北.

1985

40. Four Modification of Harrington Instrumentation, The Orthopaedic Society of R.O.C.(April 19-20,1985) 臺北.