共 9 条
Arthroscopically Assisted Treatment of Acute Dislocations of the Acromioclavicular Joint
被引:26
作者:

Braun, Sepp
论文数: 0 引用数: 0
h-index: 0
机构:
Tech Univ Munich, Dept Orthopaed Sports Med, Munich, Germany Tech Univ Munich, Dept Orthopaed Sports Med, Munich, Germany

Beitzel, Knut
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h-index: 0
机构:
Tech Univ Munich, Dept Orthopaed Sports Med, Munich, Germany Tech Univ Munich, Dept Orthopaed Sports Med, Munich, Germany

Buchmann, Stefan
论文数: 0 引用数: 0
h-index: 0
机构:
Tech Univ Munich, Dept Orthopaed Sports Med, Munich, Germany Tech Univ Munich, Dept Orthopaed Sports Med, Munich, Germany

Imhoff, Andreas B.
论文数: 0 引用数: 0
h-index: 0
机构:
Tech Univ Munich, Dept Orthopaed Sports Med, Munich, Germany Tech Univ Munich, Dept Orthopaed Sports Med, Munich, Germany
机构:
[1] Tech Univ Munich, Dept Orthopaed Sports Med, Munich, Germany
关键词:
D O I:
10.1016/j.eats.2015.07.029
中图分类号:
R826.8 [整形外科学];
R782.2 [口腔颌面部整形外科学];
R726.2 [小儿整形外科学];
R62 [整形外科学(修复外科学)];
学科分类号:
摘要:
Arthroscopically assisted treatments for dislocations of the acromioclavicular joint combine the advantages of exact and visually controlled coracoid tunnel placement with the possibility of simultaneous treatment of concomitant injuries. The clinical results of previous arthroscopically assisted techniques have been favorable at midterm and long-term follow-up. The presented surgical technique combines the advantages of arthroscopically positioned coracoclavicular stabilization with an additional suture cord cerclage of the acromioclavicular joint capsule for improved horizontal stability.
引用
收藏
页码:E681 / E685
页数:5
相关论文
共 9 条
[1]
ISAKOS Upper Extremity Committee Consensus Statement on the Need for Diversification of the Rockwood Classification for Acromioclavicular Joint Injuries
[J].
Beitzel, Knut
;
Mazzocca, Augustus D.
;
Bak, Klaus
;
Itoi, Eiji
;
Kibler, William B.
;
Mirzayan, Raffy
;
Imhoff, Andreas B.
;
Calvo, Emilio
;
Arce, Guillermo
;
Shea, Kevin
.
ARTHROSCOPY-THE JOURNAL OF ARTHROSCOPIC AND RELATED SURGERY,
2014, 30 (02)
:271-278

Beitzel, Knut
论文数: 0 引用数: 0
h-index: 0
机构:
BG Trauma Ctr, Dept Trauma & Orthopaed Surg, Murnau, Germany BG Trauma Ctr, Dept Trauma & Orthopaed Surg, Murnau, Germany

Mazzocca, Augustus D.
论文数: 0 引用数: 0
h-index: 0
机构:
Univ Connecticut, Ctr Hlth, Dept Orthopaed Surg, Farmington, CT USA BG Trauma Ctr, Dept Trauma & Orthopaed Surg, Murnau, Germany

Bak, Klaus
论文数: 0 引用数: 0
h-index: 0
机构:
Herlev Univ Hosp, Dept Orthopaed Surg, Copenhagen, Denmark BG Trauma Ctr, Dept Trauma & Orthopaed Surg, Murnau, Germany

论文数: 引用数:
h-index:
机构:

Kibler, William B.
论文数: 0 引用数: 0
h-index: 0
机构:
Lexington Clin Orthoped, Sports Med Ctr, Lexington, KY USA BG Trauma Ctr, Dept Trauma & Orthopaed Surg, Murnau, Germany

Mirzayan, Raffy
论文数: 0 引用数: 0
h-index: 0
机构:
Kaiser Permanente, Dept Orthopaed Surg, Baldwin Pk, CA USA BG Trauma Ctr, Dept Trauma & Orthopaed Surg, Murnau, Germany

Imhoff, Andreas B.
论文数: 0 引用数: 0
h-index: 0
机构:
Tech Univ Munich, Dept Orthopaed Sports Med, D-80290 Munich, Germany BG Trauma Ctr, Dept Trauma & Orthopaed Surg, Murnau, Germany

Calvo, Emilio
论文数: 0 引用数: 0
h-index: 0
机构:
Univ Autonoma Madrid, Fdn Jimenez Diaz, Dept Orthopaed Surg, Madrid, Spain BG Trauma Ctr, Dept Trauma & Orthopaed Surg, Murnau, Germany

Arce, Guillermo
论文数: 0 引用数: 0
h-index: 0
机构:
Inst Argentino Diagnost & Tratamiento, Buenos Aires, DF, Argentina BG Trauma Ctr, Dept Trauma & Orthopaed Surg, Murnau, Germany

Shea, Kevin
论文数: 0 引用数: 0
h-index: 0
机构:
Univ Connecticut, Ctr Hlth, Dept Orthopaed Surg, Farmington, CT USA BG Trauma Ctr, Dept Trauma & Orthopaed Surg, Murnau, Germany
[2]
Current Concepts in the Treatment of Acromioclavicular Joint Dislocations
[J].
Beitzel, Knut
;
Cote, Mark P.
;
Apostolakos, John
;
Solovyova, Olga
;
Judson, Christopher H.
;
Ziegler, Connor G.
;
Edgar, Cory M.
;
Imhoff, Andreas B.
;
Arciero, Robert A.
;
Mazzocca, Augustus D.
.
ARTHROSCOPY-THE JOURNAL OF ARTHROSCOPIC AND RELATED SURGERY,
2013, 29 (02)
:387-397

Beitzel, Knut
论文数: 0 引用数: 0
h-index: 0
机构:
Univ Connecticut, Ctr Hlth, Dept Orthopaed Surg, Farmington, CT 06034 USA
Trauma Ctr Murnau, Dept Trauma & Orthoped Surg, Murnau, Germany Univ Connecticut, Ctr Hlth, Dept Orthopaed Surg, Farmington, CT 06034 USA

Cote, Mark P.
论文数: 0 引用数: 0
h-index: 0
机构:
Univ Connecticut, Ctr Hlth, Dept Orthopaed Surg, Farmington, CT 06034 USA Univ Connecticut, Ctr Hlth, Dept Orthopaed Surg, Farmington, CT 06034 USA

Apostolakos, John
论文数: 0 引用数: 0
h-index: 0
机构:
Univ Connecticut, Ctr Hlth, Dept Orthopaed Surg, Farmington, CT 06034 USA Univ Connecticut, Ctr Hlth, Dept Orthopaed Surg, Farmington, CT 06034 USA

Solovyova, Olga
论文数: 0 引用数: 0
h-index: 0
机构:
Univ Connecticut, Ctr Hlth, Dept Orthopaed Surg, Farmington, CT 06034 USA Univ Connecticut, Ctr Hlth, Dept Orthopaed Surg, Farmington, CT 06034 USA

Judson, Christopher H.
论文数: 0 引用数: 0
h-index: 0
机构: Univ Connecticut, Ctr Hlth, Dept Orthopaed Surg, Farmington, CT 06034 USA

Ziegler, Connor G.
论文数: 0 引用数: 0
h-index: 0
机构:
Univ Connecticut, Ctr Hlth, Dept Orthopaed Surg, Farmington, CT 06034 USA Univ Connecticut, Ctr Hlth, Dept Orthopaed Surg, Farmington, CT 06034 USA

Edgar, Cory M.
论文数: 0 引用数: 0
h-index: 0
机构:
Univ Connecticut, Ctr Hlth, Dept Orthopaed Surg, Farmington, CT 06034 USA Univ Connecticut, Ctr Hlth, Dept Orthopaed Surg, Farmington, CT 06034 USA

Imhoff, Andreas B.
论文数: 0 引用数: 0
h-index: 0
机构:
Tech Univ Munich, Dept Orthopaed Sports Med, D-80290 Munich, Germany Univ Connecticut, Ctr Hlth, Dept Orthopaed Surg, Farmington, CT 06034 USA

Arciero, Robert A.
论文数: 0 引用数: 0
h-index: 0
机构:
Univ Connecticut, Ctr Hlth, Dept Orthopaed Surg, Farmington, CT 06034 USA Univ Connecticut, Ctr Hlth, Dept Orthopaed Surg, Farmington, CT 06034 USA

Mazzocca, Augustus D.
论文数: 0 引用数: 0
h-index: 0
机构:
Univ Connecticut, Ctr Hlth, Dept Orthopaed Surg, Farmington, CT 06034 USA Univ Connecticut, Ctr Hlth, Dept Orthopaed Surg, Farmington, CT 06034 USA
[3]
Biomechanical Comparison of Arthroscopic Repairs for Acromioclavicular Joint Instability Suture Button Systems Without Biological Augmentation
[J].
Beitzel, Knut
;
Obopilwe, Elifho
;
Chowaniec, David M.
;
Niver, Genghis E.
;
Nowak, Michael D.
;
Hanypsiak, Bryan T.
;
Guerra, James J.
;
Arciero, Robert A.
;
Mazzocca, Augustus D.
.
AMERICAN JOURNAL OF SPORTS MEDICINE,
2011, 39 (10)
:2218-2225

Beitzel, Knut
论文数: 0 引用数: 0
h-index: 0
机构:
Univ Connecticut, Dept Orthopaed Surg, Ctr Hlth, Farmington, CT 06034 USA Univ Connecticut, Dept Orthopaed Surg, Ctr Hlth, Farmington, CT 06034 USA

Obopilwe, Elifho
论文数: 0 引用数: 0
h-index: 0
机构:
Univ Connecticut, Dept Orthopaed Surg, Ctr Hlth, Farmington, CT 06034 USA Univ Connecticut, Dept Orthopaed Surg, Ctr Hlth, Farmington, CT 06034 USA

Chowaniec, David M.
论文数: 0 引用数: 0
h-index: 0
机构:
Univ Connecticut, Dept Orthopaed Surg, Ctr Hlth, Farmington, CT 06034 USA Univ Connecticut, Dept Orthopaed Surg, Ctr Hlth, Farmington, CT 06034 USA

Niver, Genghis E.
论文数: 0 引用数: 0
h-index: 0
机构:
Univ Connecticut, Dept Orthopaed Surg, Ctr Hlth, Farmington, CT 06034 USA Univ Connecticut, Dept Orthopaed Surg, Ctr Hlth, Farmington, CT 06034 USA

Nowak, Michael D.
论文数: 0 引用数: 0
h-index: 0
机构:
Univ Connecticut, Dept Orthopaed Surg, Ctr Hlth, Farmington, CT 06034 USA Univ Connecticut, Dept Orthopaed Surg, Ctr Hlth, Farmington, CT 06034 USA

Hanypsiak, Bryan T.
论文数: 0 引用数: 0
h-index: 0
机构:
Univ Connecticut, Dept Orthopaed Surg, Ctr Hlth, Farmington, CT 06034 USA Univ Connecticut, Dept Orthopaed Surg, Ctr Hlth, Farmington, CT 06034 USA

Guerra, James J.
论文数: 0 引用数: 0
h-index: 0
机构:
Univ Connecticut, Dept Orthopaed Surg, Ctr Hlth, Farmington, CT 06034 USA Univ Connecticut, Dept Orthopaed Surg, Ctr Hlth, Farmington, CT 06034 USA

Arciero, Robert A.
论文数: 0 引用数: 0
h-index: 0
机构:
Univ Connecticut, Dept Orthopaed Surg, Ctr Hlth, Farmington, CT 06034 USA Univ Connecticut, Dept Orthopaed Surg, Ctr Hlth, Farmington, CT 06034 USA

Mazzocca, Augustus D.
论文数: 0 引用数: 0
h-index: 0
机构:
Univ Connecticut, Dept Orthopaed Surg, Ctr Hlth, Farmington, CT 06034 USA Univ Connecticut, Dept Orthopaed Surg, Ctr Hlth, Farmington, CT 06034 USA
[4]
Primary Fixation of Acromioclavicular Joint Disruption
[J].
Braun, Sepp
;
Imhoff, Andreas B.
;
Martetschlaeger, Frank
.
OPERATIVE TECHNIQUES IN SPORTS MEDICINE,
2014, 22 (03)
:221-226

Braun, Sepp
论文数: 0 引用数: 0
h-index: 0
机构:
Tech Univ Munich, Dept Orthopaed Sportsmed, D-81675 Munich, Germany Tech Univ Munich, Dept Orthopaed Sportsmed, D-81675 Munich, Germany

Imhoff, Andreas B.
论文数: 0 引用数: 0
h-index: 0
机构:
Tech Univ Munich, Dept Orthopaed Sportsmed, D-81675 Munich, Germany Tech Univ Munich, Dept Orthopaed Sportsmed, D-81675 Munich, Germany

Martetschlaeger, Frank
论文数: 0 引用数: 0
h-index: 0
机构:
Tech Univ Munich, Dept Orthopaed Sportsmed, D-81675 Munich, Germany Tech Univ Munich, Dept Orthopaed Sportsmed, D-81675 Munich, Germany
[5]
Value of additional acromioclavicular cerclage for horizontal stability in complete acromioclavicular separation: a biomechanical study
[J].
Saier, Tim
;
Venjakob, Arne J.
;
Minzlaff, Philipp
;
Foehr, Peter
;
Lindell, Filip
;
Imhoff, Andreas B.
;
Vogt, Stephan
;
Braun, Sepp
.
KNEE SURGERY SPORTS TRAUMATOLOGY ARTHROSCOPY,
2015, 23 (05)
:1498-1505

Saier, Tim
论文数: 0 引用数: 0
h-index: 0
机构:
Tech Univ Munich, Klinikum Rechts Isar, Dept Orthopaed Sports Med, D-81675 Munich, Germany
Berufsgenossenschaftliche Unfallklin Murnau, D-82418 Murnau, Germany Tech Univ Munich, Klinikum Rechts Isar, Dept Orthopaed Sports Med, D-81675 Munich, Germany

Venjakob, Arne J.
论文数: 0 引用数: 0
h-index: 0
机构:
Tech Univ Munich, Klinikum Rechts Isar, Dept Orthopaed Sports Med, D-81675 Munich, Germany Tech Univ Munich, Klinikum Rechts Isar, Dept Orthopaed Sports Med, D-81675 Munich, Germany

Minzlaff, Philipp
论文数: 0 引用数: 0
h-index: 0
机构:
Tech Univ Munich, Klinikum Rechts Isar, Dept Orthopaed Sports Med, D-81675 Munich, Germany Tech Univ Munich, Klinikum Rechts Isar, Dept Orthopaed Sports Med, D-81675 Munich, Germany

Foehr, Peter
论文数: 0 引用数: 0
h-index: 0
机构:
Tech Univ Munich, Klinikum Rechts Isar, Dept Biomech, D-81675 Munich, Germany Tech Univ Munich, Klinikum Rechts Isar, Dept Orthopaed Sports Med, D-81675 Munich, Germany

Lindell, Filip
论文数: 0 引用数: 0
h-index: 0
机构:
Tech Univ Munich, Klinikum Rechts Isar, Dept Biomech, D-81675 Munich, Germany Tech Univ Munich, Klinikum Rechts Isar, Dept Orthopaed Sports Med, D-81675 Munich, Germany

Imhoff, Andreas B.
论文数: 0 引用数: 0
h-index: 0
机构:
Tech Univ Munich, Klinikum Rechts Isar, Dept Orthopaed Sports Med, D-81675 Munich, Germany Tech Univ Munich, Klinikum Rechts Isar, Dept Orthopaed Sports Med, D-81675 Munich, Germany

Vogt, Stephan
论文数: 0 引用数: 0
h-index: 0
机构:
Tech Univ Munich, Klinikum Rechts Isar, Dept Orthopaed Sports Med, D-81675 Munich, Germany Tech Univ Munich, Klinikum Rechts Isar, Dept Orthopaed Sports Med, D-81675 Munich, Germany

Braun, Sepp
论文数: 0 引用数: 0
h-index: 0
机构:
Tech Univ Munich, Klinikum Rechts Isar, Dept Orthopaed Sports Med, D-81675 Munich, Germany Tech Univ Munich, Klinikum Rechts Isar, Dept Orthopaed Sports Med, D-81675 Munich, Germany
[6]
Arthroscopically Assisted 2-Bundle Anatomical Reduction of Acute Acromioclavicular Joint Separations
[J].
Salzmann, Gian M.
;
Walz, Lars
;
Buchmann, Stefan
;
Glabgly, Prapagorn
;
Venjakob, Arne
;
Imhoff, Andreas B.
.
AMERICAN JOURNAL OF SPORTS MEDICINE,
2010, 38 (06)
:1179-1187

Salzmann, Gian M.
论文数: 0 引用数: 0
h-index: 0
机构:
Univ Freiburg, Univ Med Ctr, Dept Orthopaed & Trauma Surg, Freiburg, Germany Tech Univ Munich, Klinikum Rechts Isar, Dept Orthopaed Sports Med, D-80809 Munich, Germany

Walz, Lars
论文数: 0 引用数: 0
h-index: 0
机构:
Univ Basel Hosp, Clin Trial Unit, CH-4031 Basel, Switzerland Tech Univ Munich, Klinikum Rechts Isar, Dept Orthopaed Sports Med, D-80809 Munich, Germany

Buchmann, Stefan
论文数: 0 引用数: 0
h-index: 0
机构:
Tech Univ Munich, Klinikum Rechts Isar, Dept Orthopaed Sports Med, D-80809 Munich, Germany Tech Univ Munich, Klinikum Rechts Isar, Dept Orthopaed Sports Med, D-80809 Munich, Germany

Glabgly, Prapagorn
论文数: 0 引用数: 0
h-index: 0
机构:
Tech Univ Munich, Klinikum Rechts Isar, Dept Orthopaed Sports Med, D-80809 Munich, Germany Tech Univ Munich, Klinikum Rechts Isar, Dept Orthopaed Sports Med, D-80809 Munich, Germany

Venjakob, Arne
论文数: 0 引用数: 0
h-index: 0
机构:
Tech Univ Munich, Klinikum Rechts Isar, Dept Orthopaed Sports Med, D-80809 Munich, Germany Tech Univ Munich, Klinikum Rechts Isar, Dept Orthopaed Sports Med, D-80809 Munich, Germany

Imhoff, Andreas B.
论文数: 0 引用数: 0
h-index: 0
机构:
Tech Univ Munich, Klinikum Rechts Isar, Dept Orthopaed Sports Med, D-80809 Munich, Germany Tech Univ Munich, Klinikum Rechts Isar, Dept Orthopaed Sports Med, D-80809 Munich, Germany
[7]
Incidence of Associated Injuries With Acute Acromioclavicular Joint Dislocations Types III Through V
[J].
Tischer, Thomas
;
Salzmann, Gian Max
;
El-Azab, Hosam
;
Vogt, Stephan
;
Imhoff, Andreas B.
.
AMERICAN JOURNAL OF SPORTS MEDICINE,
2009, 37 (01)
:136-139

Tischer, Thomas
论文数: 0 引用数: 0
h-index: 0
机构:
Univ Munich, Dept Orthopaed Sports Med, Klinikum Rechts Isar, D-80809 Munich, Germany Univ Munich, Dept Orthopaed Sports Med, Klinikum Rechts Isar, D-80809 Munich, Germany

Salzmann, Gian Max
论文数: 0 引用数: 0
h-index: 0
机构:
Univ Munich, Dept Orthopaed Sports Med, Klinikum Rechts Isar, D-80809 Munich, Germany Univ Munich, Dept Orthopaed Sports Med, Klinikum Rechts Isar, D-80809 Munich, Germany

El-Azab, Hosam
论文数: 0 引用数: 0
h-index: 0
机构:
Univ Munich, Dept Orthopaed Sports Med, Klinikum Rechts Isar, D-80809 Munich, Germany Univ Munich, Dept Orthopaed Sports Med, Klinikum Rechts Isar, D-80809 Munich, Germany

Vogt, Stephan
论文数: 0 引用数: 0
h-index: 0
机构:
Univ Munich, Dept Orthopaed Sports Med, Klinikum Rechts Isar, D-80809 Munich, Germany Univ Munich, Dept Orthopaed Sports Med, Klinikum Rechts Isar, D-80809 Munich, Germany

Imhoff, Andreas B.
论文数: 0 引用数: 0
h-index: 0
机构:
Univ Munich, Dept Orthopaed Sports Med, Klinikum Rechts Isar, D-80809 Munich, Germany Univ Munich, Dept Orthopaed Sports Med, Klinikum Rechts Isar, D-80809 Munich, Germany
[8]
Arthroscopically Assisted 2-Bundle Anatomic Reduction of Acute Acromioclavicular Joint Separations 58-Month Findings
[J].
Venjakob, Arne J.
;
Salzmann, Gian M.
;
Gabel, Florian
;
Buchmann, Stefan
;
Walz, Lars
;
Spang, Jeffrey T.
;
Vogt, Stephan
;
Imhoff, Andreas B.
.
AMERICAN JOURNAL OF SPORTS MEDICINE,
2013, 41 (03)
:615-621

Venjakob, Arne J.
论文数: 0 引用数: 0
h-index: 0
机构:
Tech Univ Munich, Dept Orthopaed Sports Med, D-81675 Munich, Germany Tech Univ Munich, Dept Orthopaed Sports Med, D-81675 Munich, Germany

Salzmann, Gian M.
论文数: 0 引用数: 0
h-index: 0
机构:
Tech Univ Munich, Dept Orthopaed Sports Med, D-81675 Munich, Germany Tech Univ Munich, Dept Orthopaed Sports Med, D-81675 Munich, Germany

Gabel, Florian
论文数: 0 引用数: 0
h-index: 0
机构:
Tech Univ Munich, Dept Orthopaed Sports Med, D-81675 Munich, Germany Tech Univ Munich, Dept Orthopaed Sports Med, D-81675 Munich, Germany

Buchmann, Stefan
论文数: 0 引用数: 0
h-index: 0
机构:
Tech Univ Munich, Dept Orthopaed Sports Med, D-81675 Munich, Germany Tech Univ Munich, Dept Orthopaed Sports Med, D-81675 Munich, Germany

Walz, Lars
论文数: 0 引用数: 0
h-index: 0
机构:
Tech Univ Munich, Dept Orthopaed Sports Med, D-81675 Munich, Germany Tech Univ Munich, Dept Orthopaed Sports Med, D-81675 Munich, Germany

Spang, Jeffrey T.
论文数: 0 引用数: 0
h-index: 0
机构:
Tech Univ Munich, Dept Orthopaed Sports Med, D-81675 Munich, Germany Tech Univ Munich, Dept Orthopaed Sports Med, D-81675 Munich, Germany

Vogt, Stephan
论文数: 0 引用数: 0
h-index: 0
机构:
Tech Univ Munich, Dept Orthopaed Sports Med, D-81675 Munich, Germany Tech Univ Munich, Dept Orthopaed Sports Med, D-81675 Munich, Germany

Imhoff, Andreas B.
论文数: 0 引用数: 0
h-index: 0
机构:
Tech Univ Munich, Dept Orthopaed Sports Med, D-81675 Munich, Germany Tech Univ Munich, Dept Orthopaed Sports Med, D-81675 Munich, Germany
[9]
The Anatomic Reconstruction of Acromioclavicular Joint Dislocations Using 2 TightRope Devices A Biomechanical Study
[J].
Walz, Lars
;
Salzmann, Gian M.
;
Fabbro, Thomas
;
Eichhorn, Stefan
;
Imhoff, Andreas B.
.
AMERICAN JOURNAL OF SPORTS MEDICINE,
2008, 36 (12)
:2398-2406

Walz, Lars
论文数: 0 引用数: 0
h-index: 0
机构:
Tech Univ Munich, Klinikum Rechts Isar, Dept Orthopaed Sports Med, D-8000 Munich, Germany Univ Basel Hosp, Clin Trial Unit, Basel Inst Clin Epidemiol, CH-4031 Basel, Switzerland

Salzmann, Gian M.
论文数: 0 引用数: 0
h-index: 0
机构:
Tech Univ Munich, Klinikum Rechts Isar, Dept Orthopaed Sports Med, D-8000 Munich, Germany Univ Basel Hosp, Clin Trial Unit, Basel Inst Clin Epidemiol, CH-4031 Basel, Switzerland

论文数: 引用数:
h-index:
机构:

Eichhorn, Stefan
论文数: 0 引用数: 0
h-index: 0
机构:
Tech Univ Munich, Klinikum Rechts Isar, Dept Biomech, D-8000 Munich, Germany Univ Basel Hosp, Clin Trial Unit, Basel Inst Clin Epidemiol, CH-4031 Basel, Switzerland

Imhoff, Andreas B.
论文数: 0 引用数: 0
h-index: 0
机构:
Tech Univ Munich, Klinikum Rechts Isar, Dept Orthopaed Sports Med, D-8000 Munich, Germany Univ Basel Hosp, Clin Trial Unit, Basel Inst Clin Epidemiol, CH-4031 Basel, Switzerland