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840 results on '"Ganz, Reinhold"'

13. Acetabular Protrusion and Surgical Technique

Author

Leunig, Michael, Ganz, Reinhold, Nwachukwu, Benedict U., Section editor, Nho, Shane J., editor, Bedi, Asheesh, editor, Salata, Michael J., editor, Mather III, Richard C., editor, and Kelly, Bryan T., editor

Published
2022
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14. Surgical Technique: Periacetabular Osteotomy

Author

Beck, Martin, Lash, Nicholas J., Ganz, Reinhold, Nwachukwu, Benedict U., Section editor, Nho, Shane J., editor, Bedi, Asheesh, editor, Salata, Michael J., editor, Mather III, Richard C., editor, and Kelly, Bryan T., editor

Published
2022
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15. Hip Osteoarthritis: Definition and Etiology

Author

Tibor, Lisa M., Ganz, Reinhold, Ayeni, Olufemi R., Section editor, Nho, Shane J., editor, Bedi, Asheesh, editor, Salata, Michael J., editor, Mather III, Richard C., editor, and Kelly, Bryan T., editor

Published
2022
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17. A New Approach to Orthopedic Surgery Planning Using Deep Reinforcement Learning and Simulation

Author

Ackermann, Joëlle, Wieland, Matthias, Hoch, Armando, Ganz, Reinhold, Snedeker, Jess G., Oswald, Martin R., Pollefeys, Marc, Zingg, Patrick O., Esfandiari, Hooman, Fürnstahl, Philipp, Goos, Gerhard, Founding Editor, Hartmanis, Juris, Founding Editor, Bertino, Elisa, Editorial Board Member, Gao, Wen, Editorial Board Member, Steffen, Bernhard, Editorial Board Member, Woeginger, Gerhard, Editorial Board Member, Yung, Moti, Editorial Board Member, de Bruijne, Marleen, editor, Cattin, Philippe C., editor, Cotin, Stéphane, editor, Padoy, Nicolas, editor, Speidel, Stefanie, editor, Zheng, Yefeng, editor, and Essert, Caroline, editor

Published
2021
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21. Conservative Hip Surgery

Author

Kenanidis, Eustathios, Tsiridis, Eleftherios, Leunig, Michael, Ganz, Reinhold, Alessandro, Aprato, Alessandro, Massè, Spiker, Andrea M., Rotter, Ben-zion, Poultsides, Lazaros, Kelly, Bryan T., Desy, Nicholas M., Sierra, Rafael J., Jakobsen, Stig Storgaard, Søballe, Kjeld, and Tsiridis, Eleftherios, editor

Published
2018
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36. Avascular femoral head necrosis in young gymnasts: a pursuit of aetiology and management

Author

Blümel, Stefan, Leunig, Michael, Manner, Hannes, Tannast, Moritz, Stetzelberger, Vera M, and Ganz, Reinhold

Subjects
General Engineering, 610 Medicine & health, 610 Medizin und Gesundheit
Abstract

Aims Avascular femoral head necrosis in the context of gymnastics is a rare but serious complication, appearing similar to Perthes’ disease but occurring later during adolescence. Based on 3D CT animations, we propose repetitive impact between the main supplying vessels on the posterolateral femoral neck and the posterior acetabular wall in hyperextension and external rotation as a possible cause of direct vascular damage, and subsequent femoral head necrosis in three adolescent female gymnasts we are reporting on. Methods Outcome of hip-preserving head reduction osteotomy combined with periacetabular osteotomy was good in one and moderate in the other up to three years after surgery; based on the pronounced hip destruction, the third received initially a total hip arthroplasty. Results The described pathology is quite devastating, and extensive joint preserving surgery (which has been shown successful in Perthes’ cases) was less successful in this patient cohort. Conclusion Supraselective angiography may be helpful to improve pathomechanical understanding and surgical decision making. Cite this article: Bone Jt Open 2022;3(9):666–673.

Published
2022

40. Conservative Hip Surgery

Author

Kenanidis, Eustathios, primary, Tsiridis, Eleftherios, additional, Leunig, Michael, additional, Ganz, Reinhold, additional, Alessandro, Aprato, additional, Alessandro, Massè, additional, Spiker, Andrea M., additional, Rotter, Ben-zion, additional, Poultsides, Lazaros, additional, Kelly, Bryan T., additional, Desy, Nicholas M., additional, Sierra, Rafael J., additional, Jakobsen, Stig Storgaard, additional, and Søballe, Kjeld, additional

Published
2017
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42. Lateral femoral circumflex artery contribution to the articular and periarticular hip circulation: relevance to the anterior hip approach—a cadaveric study.

Author

Kalhor, Morteza, Gharehdaghi, Jaber, Leunig, Michael, and Ganz, Reinhold

Subjects
MEDICAL cadavers, ILIAC artery, BUTTOCKS, TOTAL hip replacement, HIP joint, ARTICULAR ligaments, FEMORAL artery, TREATMENT effectiveness, BLOOD circulation, DESCRIPTIVE statistics, LIGATURE (Surgery)
Abstract

Background: The purpose of this cadaveric study was to anatomically demonstrate the contribution of the lateral femoral circumflex artery (LFCA) to the articular and peri-articular hip circulation with an emphasis on the vascularization of hip abductors specially tensor fasciae latae muscle (TFLM). Methods and materials: Thirty hips from 26 fresh cadavers were dissected after injection of the aorta or common iliac artery by colored silicon, to study the contribution of the LFCA to the articular and periarticular hip circulation. Furthermore, the aorta was injected in another 18 fresh cadavers after unilaterally ligating the ascending branch of the LFCA (a-LFCA) as the vascular pedicle of the TFLM, to evaluate the collateral circulation to the TFLM, if available. Results: In all specimens but one, the a-LFCA was found as the single major vascular pedicle of the TFLM. When ligated, only 4 out of 18 hips demonstrated colored cast vessels in the cut surface of the muscle. The ascending branch had also consistent but variable contribution to the gluteus medius and gluteus minimus muscles in 80% of the hips. Furthermore, the a-LFCA consistently supplied the anterior and anterolateral aspects of the hip capsule. In 35% of hips, the a-LFCA contributed to the femoral head and neck circulation via one or two small anterior retinacular arteries. Conclusion: LFCA contribution to the articular and periarticular hip circulation is only delivered by the ascending branch. The TFLM is specially perfused by the a-LFCA; its ligation significantly decreases the muscle perfusion. It is poorly supplied by the collateral circulation. [ABSTRACT FROM AUTHOR]

Published
2023
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