Menkens S, Betthäuser A,
Piezoelectric Extracorporeal Shock Wave Therapy on the Muscles of the Shoulder Girdle. 16th Annual Congress of the German Association for Shoulder and Elbow Surgery, April 24-25, 2009, Hamburg

Menkens S, Tesch C, Schult M, Betthäuser A,
High Validity of Sonography in the Diagnosis of Pseudoarthroses in the Shoulder Area. 16th Annual Congress of the German Association for Shoulder and Elbow Surgery, April 24-25, 2009, Hamburg

Betthäuser A, Löffler L, Hellmers N,
The Relative Movement – a New Dynamic Sonographic Sign for Evaluating the Reconstructed Rotator Cuff. 16th Annual Congress of the German Association for Shoulder and Elbow Surgery, April 24-25, 2009, Hamburg

Menkens S., Betthäuser A,
Therapy of the DIGEST Standard Indications by Piezoelectric Extracorporeal Shockwave Therapy – Medium-term Results. 55th Annual Congress of the North German Orthopedic Association, June 15-17, 2006, Hamburg Elysee Hotel

Hellmers N, Betthäuser A, Hille E,
The “AGILON” Fracture Shoulder Endoprosthesis – A New Modular Endoprosthesis System for the Prevention of Subcapital Humerus Fractures, Even in Combination with Pronounced Rotator Cuff Lesions. 12th Congress of the German Association for Shoulder and Elbow Surgery (DVSE) e.V., Weimar, May 27-28, 2005

Müller V, Betthäuser A, Dierk O, Lampe F, Schneider E, Morlock M, Hille E, Honl H,
Fixation Methods for BTB Grafts Used in ACL Reconstruction – A Dynamic In Vitro Test. 54th Annual Congress of the North German Orthopedic Association, June 16-18, 2005, Hamburg Atlantic Hotel

Menkens S., Betthäuser A, Hille E,
Programmed Ultrasound Localization in Extracorporeal Shock Wave Therapy on the Musculoskeletal System. 51st Annual Congress of the North German Orthopedic Association, June 14-15, 2002, Essen

Menkens S., Betthäuser A, Schroeder J., Hille E,
Predictive Value of Sonography in the Question of PERTHES-BANKART Lesion? – Significance of New Ultrasound Diagnostic Findings in the Instability Diagnosis of the Shoulder Joint. 51st Annual Congress of the North German Orthopedic Association, June 14-15, 2002, Essen

Kruppa T, Betthäuser A, Bartram C, Hille E,
What Predictive Value Does Sonography Have in the Question of PERTHES-BANKART Lesion? – Significance of New Ultrasound Diagnostic Findings in the Instability Diagnosis of the Shoulder Joint. German Orthopedic Congress, October 3-6, 2001, Berlin

Jenner N, Betthäuser A, Flügge K, Raabe K, Hille E,
Can Extracorporeal Shock Wave Therapy Provide Significant Evidence of Efficacy in Epicondylitis Humeral Radialis with Piezoelectrically Generated Energy? German Orthopedic Congress, October 3-6, 2001, Berlin

Hauert J, Betthäuser A, Loose DA,
Vascular Malformation Arthritis – Transarthroscopic Treatment. International Vascular Surgery Congress, Vascular Malformation, May 10-13, 2000, Montreal, CANADA

Betthäuser A, Raabe K,
Extracorporeal Shock Wave Therapy on the Musculoskeletal System – A Programmed Approach to Ultrasound Localization and Therapy. Ultrasound Three-Country Meeting, September 7-9, 2000, Vienna.

Betthäuser A, Kruppa T, Bartram C, Hille E,
What predictive value does sonography have in the question of PERTHES-BANKART lesion? – Significance of new ultrasound diagnostic findings at the capsulolabral complex in the instability diagnosis of the shoulder joint. 7th Annual Congress of the German Association for Shoulder and Elbow Surgery e.V., May 19-20, 2000, Bad Homburg

Betthäuser A, Jenner N, Flügge K, Raabe K, Hille E,
Can significant evidence of efficacy be provided for extracorporeal shock wave therapy in epicondylitis humeri radialis with piezoelectrically generated energy? 7th Annual Congress of the German Association for Shoulder and Elbow Surgery e.V., May 19-20, 2000, Bad Homburg

Betthäuser A, Kruppa T, Bartram C, Hille E,
What predictive value does sonography have in the question of PERTHES-BANKART lesion? – Significance of new ultrasound diagnostic findings at the capsulolabral complex in the instability diagnosis of the shoulder joint. 64th Annual Congress of the German Society for Trauma Surgery, September 10-13, 2000, Hannover

Betthäuser A, Mallwitz J, Schönbrunner P, Bullmann V, De Vries H, Hille E,
Congenital Foot Deformities – An orienting differentiation of the newborn foot. 48th Annual Meeting of the “Association of South German Orthopedists”, Baden-Baden, 2000 (1st Poster Prize)

Betthäuser A, Kruppa T, Bartram C, Raabe K, Hille E,
Significance of new ultrasound diagnostic findings in the instability diagnosis of the shoulder joint. 48th Annual Meeting of the “Association of South German Orthopedists”, Baden-Baden, 2000 (1st Poster Prize – DM 500,-)

Betthäuser A, Kruppa T, Bartram C, Hille E,
What predictive value does sonography have in the question of PERTHES-BANKART lesion? – Significance of new ultrasound diagnostic findings at the capsulolabral complex in the instability diagnosis of the shoulder joint. Annual Meeting of the Bavarian Surgeons, Regensburg, July 20-22, 2000

Betthäuser A, Kruppa T, Bartram C, Hille E,
What predictive value does sonography have in the question of PERTHES-BANKART lesion? – Significance of new ultrasound diagnostic findings at the capsulolabral complex in the instability diagnosis of the shoulder joint. Annual Meeting of the GOTS, Munich, June 30-July 2, 2000

Betthäuser A, Raabe K,
Extracorporeal shock wave therapy on the musculoskeletal system – A programmed approach to ultrasound localization and therapy. Annual Meeting of the GOTS, Munich, June 30-July 2, 2000

Betthäuser A, Kruppa T, Bartram C, Raabe K, Hille E,
Significance of new ultrasound diagnostic findings in the instability diagnosis of the shoulder joint. Annual Meeting of the GOTS, Munich, June 30-July 2, 2000 (1st Poster Prize – DM 1000,-)

Betthäuser A, Hille E,
Autologous Chondrocyte Transplantation with Anterior Cruciate Ligament Reconstruction – A case presentation of causal therapy. North German Orthopedic Congress, Berlin, June 22-24, 2000

Betthäuser A, Kruppa T, Bartram C, Hille E,
What predictive value does sonography have in the question of PERTHES-BANKART lesion? – Significance of new ultrasound diagnostic findings at the capsulolabral complex in the instability diagnosis of the shoulder joint. North German Orthopedic Congress, Berlin, June 22-24, 2000

Betthäuser A, Thomsen M, Hille E,
Autologous Chondrocyte Transplantation with Anterior Cruciate Ligament Reconstruction – A case presentation of causal therapy. 16th Congress of the German-speaking Working Group for Arthroscopy AGA, Munich, October 8-9, 1999

Betthäuser A, Kruppa T, Bartram C, Raabe K, Hille E,
Significance of new ultrasound diagnostic findings in the instability diagnosis of the shoulder joint. 16th Congress of the German-speaking Working Group for Arthroscopy AGA, Munich, October 8-9, 1999

Betthäuser A, Kruppa T, Bartram C, Raabe K, Hille E,
Programmed, dynamic ultrasound diagnostics of the shoulder joint – efficiency-oriented approach and therapeutic relevance using the example of instability diagnosis. 16th Congress of the German-speaking Working Group for Arthroscopy AGA, Munich, October 8-9, 1999

Betthäuser A, Hille E,
Autologous Chondrocyte Transplantation with Anterior Cruciate Ligament Reconstruction – A case presentation of causal therapy. German Congress for Sports Medicine and Prevention, Freiburg, September 30-October 2, 1999

Betthäuser A, Kruppa T, Bartram C, Raabe K, Hille E,
Significance of new ultrasound diagnostic findings in the instability diagnosis of the shoulder joint. 23rd Tri-National Meeting of the Swiss, German, and Austrian Societies for Ultrasound in Medicine, Berlin, September 26-29, 1999

Betthäuser A, Goergens E, Hille E, Hackelöer B-J,
Sonographically guided therapy of hip dysplasia. Ultrasound Diagnosis 1998. 22nd Tri-National Meeting of the Swiss, German, and Austrian Societies for Ultrasound in Medicine, Zurich, October 14-17, 1998

Betthäuser A, Mallwitz J, Schönbrunner P, Bullmann V, De Vries H, Hille E,
Congenital Foot Deformities – An orienting differentiation of the newborn foot. 12th Annual Meeting of the Association for Pediatric Orthopedics, Hamburg, April 17-18, 1997

Betthäuser A, Mallwitz J, Schönbrunner P, Bullmann V, De Vries H, Hille E,
Congenital Foot Deformities – An orienting differentiation of the newborn foot. International Pediatric Orthopedic Symposium 1997, Hamburg, March 31, 1997

Betthäuser A, Hille E,
The Instability Test III – A new instrument for objectifying shoulder instability using active stress sonography? 35th German Sports Medicine Congress, Tübingen, September 25-27, 1997

Betthäuser A, Hille E,
The Instability Test III – A new instrument for objectifying shoulder instability using active stress sonography? 4th Biomechanics Symposium of the German Association for Sports Science dvs in Oldenburg, April 3-5, 1997

Betthäuser A, Hille E,
The Instability Test III – A new instrument for objectifying shoulder instability using active stress sonography? 3rd Congress of the German Society for Shoulder and Elbow Surgery in Hamburg, October 4-5, 1996

Betthäuser A, Heinsohn, Hille E,
Anterior Cruciate Ligament Rupture – A comparison of different surgical and rehabilitation methods using standard examination methods and sonography. 45th Annual Meeting of the North German Orthopedic Association e.V., Düsseldorf, June 20-23, 1996

Mallwitz J, Heinsohn R, Betthäuser A, Hille E,
Differential diagnosis of Achilles tendon changes in elite sports using sonography and MRI. 34th German Sports Medicine Congress, Saarbrücken, October 19-22, 1995

Betthäuser A, Heinsohn, Hille E,
Comparison between different techniques of Anterior Cruciate Ligament Reconstructions and rehabilitation methods using standard evaluation sheets. The Second Congress of the European Federation of National Associations of Orthopaedics and Traumatology EFORT, Munich, July 4-7, 1995