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Hitchon S, Soltanmohammadi P, Milner JS, Holdsworth D, Willing R. Porous versus solid shoulder implants in humeri of different bone densities: A finite element analysis. J Orthop Res 2024. [PMID: 38520665 DOI: 10.1002/jor.25840] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Revised: 03/09/2024] [Accepted: 03/12/2024] [Indexed: 03/25/2024]
Abstract
Porous metallic prosthesis components can now be manufactured using additive manufacturing techniques, and may prove beneficial for promoting bony ingrowth, for accommodating drug delivery systems, and for reducing stress shielding. Using finite element modeling techniques, 36 scenarios (three porous stems, three bone densities, and four held arm positions) were analysed to assess the viability of porous humeral stems for use in total shoulder arthroplasty, and their resulting mechanobiological impact on the surrounding humerus bone. All three porous stems were predicted to experience stresses below the yield strength of Ti6Al4V (880 MPa) and to be capable of withstanding more than 10 million cycles of each loading scenario before failure. There was an indication that within an 80 mm region of the proximal humerus, there would be a reduction in bone resorption as stem porosity increased. Overall, this study shows promise that these porous structures are mechanically viable for incorporation into permanent shoulder prostheses to combat orthopedic infections.
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Affiliation(s)
- Sydney Hitchon
- School of Biomedical Engineering, Western University, London, Ontario, Canada
- Bone and Joint Institute, Western University, London, Ontario, Canada
| | | | - Jaques S Milner
- Robarts Research Institute, Western University, London, Ontario, Canada
| | - David Holdsworth
- Bone and Joint Institute, Western University, London, Ontario, Canada
- Robarts Research Institute, Western University, London, Ontario, Canada
- Department of Medical Biophysics, Schulich School of Medicine & Dentistry, Western University, London, Ontario, Canada
| | - Ryan Willing
- School of Biomedical Engineering, Western University, London, Ontario, Canada
- Bone and Joint Institute, Western University, London, Ontario, Canada
- Department of Mechanical and Materials Engineering, Western University, London, Ontario, Canada
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2
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Lv S, Liu X, Sui J, Bai C, Fan B, Zhang W, Yuan P, Zhu J, Li J, Shao B. In vivo research on 3D-printed composite PLGA and PDLLA-HA absorbable scaffolds for repairing radius defects in rabbits. J Int Med Res 2024; 52:3000605241233418. [PMID: 38548472 PMCID: PMC10981247 DOI: 10.1177/03000605241233418] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Accepted: 01/26/2024] [Indexed: 04/01/2024] Open
Abstract
OBJECTIVES Despite being an important research topic in oral biomaterials, few studies have demonstrated the differences between poly(d,l-lactide-co-glycolide)/hydroxyapatite (PLGA/HA) and poly(d,l-lactic acid)/hydroxyapatite (PDLLA/HA). In this study, PLGA/HA and PDLLA/HA scaffolds were prepared using three-dimensional (3D) printing technology and implanted into radius defects in rabbits to assess their effects on bone regeneration. METHODS In this study, 6 mm × 4 mm bone defects were generated in the bilateral radii of rabbits. 3D-printed PLGA/HA and PDLLA/HA scaffolds were implanted into the defects. X-ray imaging, micro-computed tomography, and hematoxylin-eosin staining were performed to observe the degradation of the materials, the presence of new bone, and bone remodeling in the bone defect area. RESULTS The PLGA/HA scaffolds displayed complete degradation at 20 weeks, whereas PDLLA/HA scaffolds exhibited incomplete degradation. Active osteoblasts were detected in both groups. The formation of new bone, bone marrow cavity reconstruction, and cortical bone remodeling were better in the PLGA/HA group than in the PDLLA/HA group. CONCLUSIONS PLGA/HA scaffolds performed better than PDLLA/HA scaffolds in repairing bone defects, making the former scaffolds more suitable as bone substitutes at the same high molecular weight.
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Affiliation(s)
- Shouyin Lv
- Department of Oral Implant Center, People’s Hospital of Inner Mongolia Autonomous Region, Hohhot, Inner Mongolia Autonomous Region, PR China
| | - Xu Liu
- Department of Oral Implant, Baoding First Central Hospital, Baoding, Hebei Province, PR China
| | - Jiang Sui
- Department of Oral Implant Center, People’s Hospital of Inner Mongolia Autonomous Region, Hohhot, Inner Mongolia Autonomous Region, PR China
| | - Congjia Bai
- Department of Oral Implant Center, People’s Hospital of Inner Mongolia Autonomous Region, Hohhot, Inner Mongolia Autonomous Region, PR China
| | - Boxi Fan
- Department of Oral Implant Center, People’s Hospital of Inner Mongolia Autonomous Region, Hohhot, Inner Mongolia Autonomous Region, PR China
| | - Wenlong Zhang
- Department of Oral Implant Center, People’s Hospital of Inner Mongolia Autonomous Region, Hohhot, Inner Mongolia Autonomous Region, PR China
| | - Pingping Yuan
- Department of Oral Implant Center, People’s Hospital of Inner Mongolia Autonomous Region, Hohhot, Inner Mongolia Autonomous Region, PR China
| | - Jiwen Zhu
- Jiangsu Mailun Medial Technology Co. Ltd, Qidong, Jiangsu Province, PR China
| | - Jianbin Li
- Jiangsu Mailun Medial Technology Co. Ltd, Qidong, Jiangsu Province, PR China
| | - Bo Shao
- Department of Oral Implant Center, People’s Hospital of Inner Mongolia Autonomous Region, Hohhot, Inner Mongolia Autonomous Region, PR China
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Rachbauer AM, Schneider KN, Gosheger G, Deventer N. Endoprosthetic Reconstruction of the Proximal Humerus with an Inverse Tumor Prosthesis. Cancers (Basel) 2023; 15:5330. [PMID: 38001590 PMCID: PMC10670134 DOI: 10.3390/cancers15225330] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2023] [Revised: 11/06/2023] [Accepted: 11/07/2023] [Indexed: 11/26/2023] Open
Abstract
Reconstructing the proximal humerus after tumor removal is challenging due to muscle and bone loss. The current methods often result in poor shoulder function. This study assessed the long-term functional and oncological outcomes of using an inverse proximal humerus prosthesis in 46 patients with bone tumors. The results showed a mean range of motion of 62° in anteversion, 28° in retroversion, and 55° in abduction. Notably, 23 patients achieved over 90° of shoulder abduction, with an average of 140°. The median Musculoskeletal Tumor Society Score was 25. Complications included infection in two radiotherapy patients and single dislocations in seven patients. One patient with recurrent dislocations needed revision surgery. In conclusion, the use of the inverse proximal humerus prosthesis in bone tumor treatment yields excellent shoulder function and high patient satisfaction. This approach is especially beneficial for those with metastatic disease.
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Affiliation(s)
- Anna Maria Rachbauer
- Department of General Orthopedics and Tumor Orthopedics, Muenster University Hospital, 48149 Muenster, Germany (N.D.)
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Li Z, Lu M, Zhang Y, Gong T, Wang J, Luo Y, Zhou Y, Min L, Tu C. Computer-aided Design and 3D-printed Personalized Stem-plate Composite for Precision Revision of the Proximal Humerus Endoprosthetic Replacement: A Technique Note. Orthop Surg 2023; 15:3000-3005. [PMID: 37723892 PMCID: PMC10622279 DOI: 10.1111/os.13857] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Revised: 07/12/2023] [Accepted: 07/23/2023] [Indexed: 09/20/2023] Open
Abstract
BACKGROUND Aseptic loosening is considered to be a rather uncommon complication in proximal humerus endoprosthetic replacement (PHER). However, patients with aseptic loosening often suffer severe bone loss, which poses a great challenge in following revision. Under this situation, a standard stemmed endoprosthesis is unavailable for revision limb salvage. Computer-aided design and 3D-printed personalized implants are an emerging solution for reconstructing complex bone defects. CASE PRESENTATION Here, we present a 67-year-old male who underwent PHER after tumor resection and developed aseptic loosening with severe periprosthetic osteolysis around the stem. Computer-aided design and 3D-printed personalized stem-plate composite was used for the precision revision of this patient. During the follow-up, encouraging results were observed, with good endoprosthetic stability and satisfactory limb function. CONCLUSION Computer-aid design and 3D-printed personalized stem-plate composite used in the present case could help to achieve good endoprosthetic stability and satisfactory limb function. This 3D-printed personalized stem-plate composite seems to be an effective method for the precise revision of PHER in patients with severe periprosthetic osteolysis. In addition, it also provides a novel method for similar revision surgery of other joints or primary endoprosthetic replacement with severe bone defects.
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Affiliation(s)
- Zhuangzhuang Li
- Department of Orthopaedics, Orthopaedic Research Institute, West China HospitalSichuan UniversityChengduChina
- Model Worker and Craftsman Talent Innovation Workshop of Sichuan ProvinceChengduChina
| | - Minxun Lu
- Department of Orthopaedics, Orthopaedic Research Institute, West China HospitalSichuan UniversityChengduChina
- Model Worker and Craftsman Talent Innovation Workshop of Sichuan ProvinceChengduChina
| | - Yuqi Zhang
- Department of Orthopaedics, Orthopaedic Research Institute, West China HospitalSichuan UniversityChengduChina
- Model Worker and Craftsman Talent Innovation Workshop of Sichuan ProvinceChengduChina
| | - Taojun Gong
- Department of Orthopaedics, Orthopaedic Research Institute, West China HospitalSichuan UniversityChengduChina
- Model Worker and Craftsman Talent Innovation Workshop of Sichuan ProvinceChengduChina
| | - Jie Wang
- Department of Orthopaedics, Orthopaedic Research Institute, West China HospitalSichuan UniversityChengduChina
- Model Worker and Craftsman Talent Innovation Workshop of Sichuan ProvinceChengduChina
| | - Yi Luo
- Department of Orthopaedics, Orthopaedic Research Institute, West China HospitalSichuan UniversityChengduChina
- Model Worker and Craftsman Talent Innovation Workshop of Sichuan ProvinceChengduChina
| | - Yong Zhou
- Department of Orthopaedics, Orthopaedic Research Institute, West China HospitalSichuan UniversityChengduChina
- Model Worker and Craftsman Talent Innovation Workshop of Sichuan ProvinceChengduChina
| | - Li Min
- Department of Orthopaedics, Orthopaedic Research Institute, West China HospitalSichuan UniversityChengduChina
- Model Worker and Craftsman Talent Innovation Workshop of Sichuan ProvinceChengduChina
| | - Chongqi Tu
- Department of Orthopaedics, Orthopaedic Research Institute, West China HospitalSichuan UniversityChengduChina
- Model Worker and Craftsman Talent Innovation Workshop of Sichuan ProvinceChengduChina
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Zhu J, Li S, Wang D, Li D, Wang X, Rong Q. Effect of remaining pericervical dentin on biomechanical behavior of endocrown-restored molars with different materials: Three-dimensional finite element and Weibull analyses. Dent Mater J 2023; 42:683-691. [PMID: 37612061 DOI: 10.4012/dmj.2023-015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/25/2023]
Abstract
To evaluate the effect of remaining pericervical dentin (PCD) on the biomechanical behavior of endocrown-restored molars with different materials, six three-dimensional finite element (FE) models were reconstructed with different thicknesses and heights of pulp-chamber lateral dentinal wall (PCLDW). IPS Empress 2, In-Ceram Zirconia, and Lava Ultimate were selected as the materials. Compared with the Lava Ultimate FE models, the maximum tensile stress in the FE models using ceramics was higher in the endocrown and lower in the PCD surrounding it, and the overall failure probabilities with different PCLDW thicknesses and heights were similar, ranging from 9.8% to 12.9% under the normal lateral masticatory force, which were lower than the FE models using Lava Ultimate (ranging from 13.4% to 15.1%). Considering the bonding properties of ceramics, endocrown-restored molars using etchable lithium disilicate-reinforced glass ceramic exhibit superior longevity due to the stress shielding effect, regardless of the thickness and height of PCLDW.
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Affiliation(s)
- Junxin Zhu
- Second Dental Center, Peking University School and Hospital of Stomatology
| | - Shiying Li
- Second Dental Center, Peking University School and Hospital of Stomatology
| | - Dongmei Wang
- Second Dental Center, Peking University School and Hospital of Stomatology
| | - Deli Li
- Second Dental Center, Peking University School and Hospital of Stomatology
| | - Xiaoyan Wang
- Department of Cariology and Endodontology, Peking University School and Hospital of Stomatology
| | - Qiguo Rong
- Department of Mechanics and Engineering Science, College of Engineering, Peking University
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Pareatumbee P, Zainul-Abidin S, Yew A, Chou SM, Howe TS, Koh JSB, Tan MH. Effect of implant length variations on stress shielding in proximal humeral replacement after tumor excision under torsion: Finite element study. J Orthop Res 2022; 41:1139-1147. [PMID: 36200541 DOI: 10.1002/jor.25456] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/19/2022] [Revised: 09/01/2022] [Accepted: 10/01/2022] [Indexed: 02/04/2023]
Abstract
The proximal humerus is the most common site of occurrence of primary bone tumors in the upper limb. Endoprosthetic replacement is deemed as the preferred reconstructive option following primary resection of bone tumors. However, it has been also associated with complications such as stress shielding and aseptic loosening compromising prosthetic survival. Our objective was to conduct a finite element (FE) study to investigate the effect of varying endoprosthesis length on bone stresses as well as to quantify the extent of stress shielding across the bone length (BL) in a humerus-prosthesis assembly for proximal humeral replacement after tumor excision thereby allowing us to identify the optimal implant length with best biomechanical performance. FE models of the intact humerus and humerus-prosthesis assemblies were established where they were loaded at the elbow joint under torsion with the glenohumeral joint fixed to represent twisting. After dividing the bone into individual slices consisting of 5% BL, the maximum cortical and cancellous principal, von Mises and shear bone stresses were calculated. To measure the level of stress shielding, the percentage stress change from the intact state was evaluated across each slice. Similar stress patterns were observed between the intact state and shorter endoprosthesis compared to the longer endoprostheses. Our findings illustrated the possibility of stress shielding occurring under torsional forces with its effect increasing with implant lengthening. To conclude, we believe that using a shorter prosthesis may substantially diminish the risk of potential implant failure due to stress shielding.
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Affiliation(s)
- Pivatidevi Pareatumbee
- Singhealth-Duke NUS Musculoskeletal Sciences Academic Clinical Program, Singapore General Hospital, Singapore, Singapore
| | - Suraya Zainul-Abidin
- Singhealth-Duke NUS Musculoskeletal Sciences Academic Clinical Program, Singapore General Hospital, Singapore, Singapore.,Department of Orthopedic Surgery, Singapore General Hospital, Singapore, Singapore.,Division of Musculoskeletal Sciences, Singapore General Hospital, Singapore, Singapore
| | - Andy Yew
- Singhealth-Duke NUS Musculoskeletal Sciences Academic Clinical Program, Singapore General Hospital, Singapore, Singapore.,Division of Musculoskeletal Sciences, Singapore General Hospital, Singapore, Singapore
| | - Siaw M Chou
- School of Mechanical and Aerospace Engineering, Nanyang Technological University, Singapore, Singapore
| | - Tet Sen Howe
- Singhealth-Duke NUS Musculoskeletal Sciences Academic Clinical Program, Singapore General Hospital, Singapore, Singapore.,Department of Orthopedic Surgery, Singapore General Hospital, Singapore, Singapore.,Division of Musculoskeletal Sciences, Singapore General Hospital, Singapore, Singapore
| | - Joyce S B Koh
- Singhealth-Duke NUS Musculoskeletal Sciences Academic Clinical Program, Singapore General Hospital, Singapore, Singapore.,Department of Orthopedic Surgery, Singapore General Hospital, Singapore, Singapore.,Division of Musculoskeletal Sciences, Singapore General Hospital, Singapore, Singapore
| | - Mann Hong Tan
- Singhealth-Duke NUS Musculoskeletal Sciences Academic Clinical Program, Singapore General Hospital, Singapore, Singapore.,Department of Orthopedic Surgery, Singapore General Hospital, Singapore, Singapore.,Division of Musculoskeletal Sciences, Singapore General Hospital, Singapore, Singapore
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Gupta R, Schmidt EC, Namdari S, Stone MA, Hast MW. The addition of cerclage wiring does not improve proximal bicortical fixation of locking plates for Type C periprosthetic fractures in synthetic humeri. Clin Biomech (Bristol, Avon) 2022; 97:105709. [PMID: 35780699 PMCID: PMC10096358 DOI: 10.1016/j.clinbiomech.2022.105709] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Revised: 06/05/2022] [Accepted: 06/14/2022] [Indexed: 02/07/2023]
Abstract
BACKGROUND Treatment of proximal humerus periprosthetic fractures is challenging. It remains difficult to achieve robust fixation of the proximal fragment to the locking plate using cerclage wiring and/or unicortical screws. Use of polyaxial tangentially directed bicortical locking screws increases screw purchase, but it is unclear if this option provides robust fixation. This biomechanical study compares fixation of constructs using cerclage wires, bicortical locking screws, and a hybrid method utilizing both methods. METHODS Uncemented humeral stems were implanted into synthetic humeri and Type C periprosthetic fractures were simulated with a 1 cm transverse osteotomy. Distal ends of locking plates were secured with bicortical non-locking screws. The proximal ends were supported by either isolated cerclage wires, polyaxial locking screws, or a hybrid combination of both (n = 6 for each group). A universal test frame was used for non-destructive torsion and cyclic axial compression tests. 3-D motion tracking was employed to determine stiffnesses and relative interfragmentary motions. FINDINGS Isolated screw constructs showed significantly increased resistance against torsional movement, bending, and shear, (p < 0.05) in comparison to cerclage constructs. The hybrid construct provided no significant changes in stability over the isolated screw construct. INTERPRETATION Addition of cerclage wires in this synthetic bone model of Type C periprosthetic humerus fractures did not add significant stability to proximal bicortical locking plate fixation. Considering risks of tissue stripping and nerve injury, usage of cerclage wires in a similar clinical setting should be chosen carefully, especially when bicortical fixation around the prosthetic stem can be achieved.
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Affiliation(s)
- Richa Gupta
- McKay Orthopaedic Research Laboratory, Department of Orthopaedic Surgery, University of Pennsylvania, Philadelphia, PA, USA.
| | - Elaine C Schmidt
- McKay Orthopaedic Research Laboratory, Department of Orthopaedic Surgery, University of Pennsylvania, Philadelphia, PA, USA
| | - Surena Namdari
- Rothman Orthopaedic Institute, Thomas Jefferson University, Philadelphia, PA, USA.
| | - Michael A Stone
- Rothman Orthopaedic Institute, Thomas Jefferson University, Philadelphia, PA, USA
| | - Michael W Hast
- McKay Orthopaedic Research Laboratory, Department of Orthopaedic Surgery, University of Pennsylvania, Philadelphia, PA, USA.
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Theil C, Schwarze J, Gosheger G, Moellenbeck B, Schneider KN, Deventer N, Klingebiel S, Grammatopoulos G, Boettner F, Schmidt-Braekling T. Implant Survival, Clinical Outcome and Complications of Megaprosthetic Reconstructions Following Sarcoma Resection. Cancers (Basel) 2022; 14:cancers14020351. [PMID: 35053514 PMCID: PMC8773828 DOI: 10.3390/cancers14020351] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2021] [Revised: 01/04/2022] [Accepted: 01/08/2022] [Indexed: 12/29/2022] Open
Abstract
Simple Summary Malignant bone and soft tissue tumors are usually surgically removed with an envelope of healthy tissue as a barrier. If located in the long bones of the upper and lower extremity, this approach leads to a large bone defect commonly affecting a joint. One way to rebuild the bone defect and the neighboring joint is the use of a megaprosthesis that is anchored in the remaining bone comparable to a conventional joint replacement. In general this approach is popular as it provides early stability and allows the affected patient to begin rehabilitation early on. However, complications leading to long-term unplanned reoperation are common. This article provides an overview of current implant survival, types of complication and long-term outcomes of megaprostheses used following tumor resection. Abstract Megaprosthetic reconstruction of segmental bone defects following sarcoma resection is a frequently chosen surgical approach in orthopedic oncology. While the use of megaprostheses has gained popularity over the last decades and such implants are increasingly used for metastatic reconstructions and in non-tumor cases, there still is a high risk of long-term complications leading to revision surgery. This article investigates current implant survivorship, frequency and types of complications as well as functional outcomes of upper and lower limb megaprosthetic reconstructions.
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Affiliation(s)
- Christoph Theil
- Department for General Orthopaedics and Tumor Orthopaedics, University Hospital Muenster, Albert-Schweitzer Campus 1, 48149 Muenster, Germany; (C.T.); (J.S.); (G.G.); (B.M.); (K.N.S.); (N.D.); (S.K.)
| | - Jan Schwarze
- Department for General Orthopaedics and Tumor Orthopaedics, University Hospital Muenster, Albert-Schweitzer Campus 1, 48149 Muenster, Germany; (C.T.); (J.S.); (G.G.); (B.M.); (K.N.S.); (N.D.); (S.K.)
| | - Georg Gosheger
- Department for General Orthopaedics and Tumor Orthopaedics, University Hospital Muenster, Albert-Schweitzer Campus 1, 48149 Muenster, Germany; (C.T.); (J.S.); (G.G.); (B.M.); (K.N.S.); (N.D.); (S.K.)
| | - Burkhard Moellenbeck
- Department for General Orthopaedics and Tumor Orthopaedics, University Hospital Muenster, Albert-Schweitzer Campus 1, 48149 Muenster, Germany; (C.T.); (J.S.); (G.G.); (B.M.); (K.N.S.); (N.D.); (S.K.)
| | - Kristian Nikolaus Schneider
- Department for General Orthopaedics and Tumor Orthopaedics, University Hospital Muenster, Albert-Schweitzer Campus 1, 48149 Muenster, Germany; (C.T.); (J.S.); (G.G.); (B.M.); (K.N.S.); (N.D.); (S.K.)
| | - Niklas Deventer
- Department for General Orthopaedics and Tumor Orthopaedics, University Hospital Muenster, Albert-Schweitzer Campus 1, 48149 Muenster, Germany; (C.T.); (J.S.); (G.G.); (B.M.); (K.N.S.); (N.D.); (S.K.)
| | - Sebastian Klingebiel
- Department for General Orthopaedics and Tumor Orthopaedics, University Hospital Muenster, Albert-Schweitzer Campus 1, 48149 Muenster, Germany; (C.T.); (J.S.); (G.G.); (B.M.); (K.N.S.); (N.D.); (S.K.)
| | - George Grammatopoulos
- Division of Orthopaedic Surgery, The Ottawa Hospital, 501 Smyth Road, Ottawa, ON K1H 8L6, Canada;
| | - Friedrich Boettner
- Hospital for Special Surgery, 535 East 70th Street, New York, NY 10021, USA;
| | - Tom Schmidt-Braekling
- Department for General Orthopaedics and Tumor Orthopaedics, University Hospital Muenster, Albert-Schweitzer Campus 1, 48149 Muenster, Germany; (C.T.); (J.S.); (G.G.); (B.M.); (K.N.S.); (N.D.); (S.K.)
- Division of Orthopaedic Surgery, The Ottawa Hospital, 501 Smyth Road, Ottawa, ON K1H 8L6, Canada;
- Correspondence:
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Ma Y, Talha M, Guo W, Liu W, Wang Q, Zhao Q, Li Z, Lin Y. Improved corrosion protective performance of chitosan coatings reinforced with nano-ZnO on degradable magnesium alloy in simulated body fluid. APPLIED PHYSICS A 2021; 127:968. [DOI: 10.1007/s00339-021-05120-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Accepted: 11/19/2021] [Indexed: 09/01/2023]
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