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Tsai YT, Lin KJ, Lin JC. Biomechanical comparison of three fixation strategies for radial head fractures: a biomechanical study. BIOMED ENG-BIOMED TE 2024; 69:193-198. [PMID: 37883038 DOI: 10.1515/bmt-2023-0107] [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] [Received: 03/14/2023] [Accepted: 09/19/2023] [Indexed: 10/27/2023]
Abstract
Second-generation headless compression screws (HCSs) are commonly used for the fixation of small bones and articular fractures. However, there is a lack of biomechanical data regarding the application of such screws to radial head fractures. This study evaluated the mechanical properties of the fixation of radial head fractures using a single oblique HCS compared with those obtained using a standard locking radial head plate (LRHP) construct and a double cortical screw (DCS) construct. Radial synbone models were used for biomechanical tests of HCS, LRHP, and DCS constructs. All specimens were first cyclically loaded and then loaded to failure. The stiffness for the LRHP group was significantly higher than that for the other two groups, and that for the HCS group was significantly higher than that for the DCS group. The LRHP group had the greatest strength, followed by the HCS group and then the DCS group. The HCS construct demonstrated greater fixation strength than that of the commonly used cortical screws, although the plate group was the most stable. The present study revealed the feasibility of using a single oblique HCS, which has the advantages of being buried, requiring limited wound exposure, and having relatively easy operation, for treating simple radial head fractures.
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Affiliation(s)
- Yao-Tung Tsai
- Department of Orthopaedic Surgery, Tri-Service General Hospital and National Defense Medical Center, Taipei, Taiwan
| | - Kun-Jhih Lin
- Technology Translation Center for Medical Device, Chung Yuan Christian University, Taoyuan, Taiwan
| | - Jui-Cheng Lin
- Department of Orthopedics, Taipei Medical University Hospital, Taipei, Taiwan
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Su YC, Wang YY, Fang CJ, Su WR, Kuan FC, Hsu KL, Hong CK, Yeh ML, Lin CJ, Tu YK, Shih CA. Is implant choice associated with fixation strength for displaced radial neck fracture: a network meta-analysis of biomechanical studies. Sci Rep 2023; 13:6891. [PMID: 37105993 PMCID: PMC10140263 DOI: 10.1038/s41598-023-33410-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Accepted: 04/12/2023] [Indexed: 04/29/2023] Open
Abstract
The multitude of fixation options for radial neck fractures, such as pins, screws, biodegradable pins and screws, locking plates, and blade plates, has led to a lack of consensus on the optimal implant choice and associated biomechanical properties. This study aims to evaluate the biomechanical strength of various fixation constructs in axial, sagittal, and torsional loading directions. We included biomechanical studies comparing different interventions, such as cross/parallel screws, nonlocking plates with or without augmented screws, fixed angle devices (T or anatomic locking plates or blade plates), and cross pins. A systematic search of MEDLINE (Ovid), Embase, Scopus, and CINAHL EBSCO databases was conducted on September 26th, 2022. Data extraction was carried out by one author and verified by another. A network meta-analysis (NMA) was conducted in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-analyses guidelines. Primary outcomes encompassed axial, bending, and torsional stiffness, while the secondary outcome was bending load to failure. Effect sizes were calculated for continuous outcomes, and relative treatment ranking was measured using the surface under the cumulative ranking curve (SUCRA). Our analysis encompassed eight studies, incorporating 172 specimens. The findings indicated that fixed angle constructs, specifically the anatomic locking plate, demonstrated superior axial stiffness (mean difference [MD]: 23.59 N/mm; 95% CI 8.12-39.06) in comparison to the cross screw. Additionally, the blade plate construct excelled in bending stiffness (MD: 32.37 N/mm; 95% CI - 47.37 to 112.11) relative to the cross screw construct, while the cross-screw construct proved to be the most robust in terms of bending load failure. The parallel screw construct performed optimally in torsional stiffness (MD: 139.39 Nm/degree; 95% CI 0.79-277.98) when compared to the cross screw construct. Lastly, the nonlocking plate, locking T plate, and cross-pin constructs were found to be inferior in most respects to alternative interventions. The NMA indicated that fixed angle devices (blade plate and anatomic locking plate) and screw fixations may exhibit enhanced biomechanical strength in axial and bending directions, whereas cross screws demonstrated reduced torsional stability in comparison to parallel screws. It is imperative for clinicians to consider the application of these findings in constraining forces across various directions during early range of motion exercises, taking into account the distinct biomechanical properties of the respective implants.
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Affiliation(s)
- Yu-Cheng Su
- Linkou Chang Gung Memorial Hospital, Taoyuan City, Taiwan
| | - Ying-Yu Wang
- Linkou Chang Gung Memorial Hospital, Taoyuan City, Taiwan
| | - Ching-Ju Fang
- Department of Secretariat, College of Medicine, National Cheng Kung University Hospital, National Cheng Kung University, Tainan, Taiwan
- Medical Library, National Cheng Kung University, Tainan, Taiwan
| | - Wei-Ren Su
- Department of Orthopedics, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
- Medical Device R&D Core Laboratory, National Cheng Kung University Hospital, Tainan, Taiwan
| | - Fa-Chuan Kuan
- Department of Orthopedics, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
- Medical Device R&D Core Laboratory, National Cheng Kung University Hospital, Tainan, Taiwan
| | - Kai-Lan Hsu
- Department of Orthopedics, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
- Medical Device R&D Core Laboratory, National Cheng Kung University Hospital, Tainan, Taiwan
| | - Chih-Kai Hong
- Department of Orthopedics, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
- Medical Device R&D Core Laboratory, National Cheng Kung University Hospital, Tainan, Taiwan
| | - Min-Long Yeh
- Department of Biomedical Engineering, National Cheng Kung University, Tainan, Taiwan
| | - Chii-Jeng Lin
- Department of Orthopedics, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
- Medical Device R&D Core Laboratory, National Cheng Kung University Hospital, Tainan, Taiwan
- President Office, Joint Commission of Taiwan, New Taipei City, Taiwan, ROC
| | - Yu-Kang Tu
- Institute of Epidemiology and Preventive Medicine, National Taiwan University College of Public Health, Taipei, Taiwan
- Department of Dentistry, National Taiwan University Hospital, Taipei, Taiwan
| | - Chien-An Shih
- Department of Orthopedics, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan.
- Medical Device R&D Core Laboratory, National Cheng Kung University Hospital, Tainan, Taiwan.
- Department of Orthopedics, College of Medicine, National Cheng Kung University, Tainan, Taiwan.
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Lin Z, Chen H, Xu J, Wang J, Wang H, Huang S, Xu S. A Review of the Release Profiles and Efficacies of Chemotherapy Drug-Loaded Electrospun Membranes. Polymers (Basel) 2023; 15:polym15020251. [PMID: 36679132 PMCID: PMC9865042 DOI: 10.3390/polym15020251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Revised: 12/25/2022] [Accepted: 12/28/2022] [Indexed: 01/05/2023] Open
Abstract
Electrospun fibrous membranes loaded with chemotherapy drugs have been broadly studied, many of which have had promising data demonstrating therapeutic effects on cancer cell inhibition, tumor size reduction, the life extension of tumor-bearing animals, and more. Nevertheless, their drug release profiles are difficult to predict since their degradation pattern varies with crystalline polymers. In addition, there is room for improving their release performances, optimizing the release patterns, and achieving better therapeutic outcomes. In this review, the key factors affecting electrospun membrane drug release profiles have been systematically reviewed. Case studies of the release profiles of typical chemotherapy drugs are carried out to determine the preferred polymer choices and techniques to achieve the expected prolonged or enhanced release profiles. The therapeutic effects of these electrospun, chemo-drug-loaded membranes are also discussed. This review aims to assist in the design of future drug-loaded electrospun materials to achieve preferred release profiles with enhanced therapeutic efficacies.
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Affiliation(s)
- Zhenyu Lin
- Institute for Advanced Study, Shenzhen University, Shenzhen 518060, China
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China
| | - Hao Chen
- Institute for Advanced Study, Shenzhen University, Shenzhen 518060, China
| | - Jiawei Xu
- Institute for Advanced Study, Shenzhen University, Shenzhen 518060, China
| | - Jie Wang
- Institute for Advanced Study, Shenzhen University, Shenzhen 518060, China
| | - Huijing Wang
- Institute for Advanced Study, Shenzhen University, Shenzhen 518060, China
| | - Shifen Huang
- Institute for Advanced Study, Shenzhen University, Shenzhen 518060, China
| | - Shanshan Xu
- Institute for Advanced Study, Shenzhen University, Shenzhen 518060, China
- Correspondence: ; Tel.: +86-755-26531165
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Baldini M, Coppa V, Falcioni D, Cusano G, Massetti D, Marinelli M, Gigante AP. Resorbable magnesium screws for fixation of medial epicondyle avulsion fractures in skeletally immature patients: A comparison with Kirschner wires. J Child Orthop 2022; 16:481-487. [PMID: 36483654 PMCID: PMC9723866 DOI: 10.1177/18632521221136100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Accepted: 10/08/2022] [Indexed: 12/02/2022] Open
Abstract
BACKGROUND Displaced medial epicondyle fractures are treated with open reduction and internal fixation with K-wires or screws. Rates of implant prominence, failure, or non-union reported are considerable. Magnesium screws have demonstrated biocompatibility, osteoconductivity, and high pull-out strength. The aim of this study was to compare surgical fixation of medial epicondyle fracture using resorbable magnesium Herbert screws to K-wires, in skeletally immature patients. METHODS A retrospective analysis was performed from January 2015 to April 2020. Inclusion criteria were as follows displaced medial epicondyle fracture, <15 years, and absence of concomitant ipsilateral upper limb fractures. Two consecutive cohorts based on fixation device were made: Group A (wires) and Group B (magnesium screws). Alignment, pain, range of motion, Mayo Elbow Performance Score, and radiological healing were assessed. RESULTS A total of 27 patients were included: 15 in Group A and 12 in Group B. Groups were comparable for age and sex. Mean follow-up was higher in Group A (38.73 ± 3.15 vs 26.18 ± 4.85 months; p < 0.001). No significant differences were observed regarding range of motion, alignment, pain, and Mayo Elbow Performance Score, with excellent results in both groups. Two patients in Group A developed a deep wound pin site infection requiring antibiotics. X-rays revealed three cases of non-union in Group A and one in Group B, all of them asymptomatic. No patient required a second surgical procedure. CONCLUSION Open reduction and internal fixation of medial epicondyle fractures with magnesium screws showed comparable results to a widely accepted procedure such as the use of K-wires, potentially with a lower incidence of non-union and infection. No adverse reactions were recorded. LEVEL OF EVIDENCE level III.
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Affiliation(s)
- Marco Baldini
- Clinical Orthopedics, Department of Clinical and Molecular Science, School of Medicine, Università Politecnica delle Marche, Ancona, Italy,Marco Baldini, Clinical Orthopedics, Department of Clinical and Molecular Science, School of Medicine, Università Politecnica delle Marche, Via Tronto, 10/A, 60126 Ancona, Italy. Emails: ;
| | - Valentino Coppa
- Clinic of Adult and Paediatric Orthopedic, Azienda Ospedaliero-Universitaria, Ospedali Riuniti di Ancona, Ancona, Italy
| | - Danya Falcioni
- Clinic of Adult and Paediatric Orthopedic, Azienda Ospedaliero-Universitaria, Ospedali Riuniti di Ancona, Ancona, Italy
| | - Giuseppe Cusano
- Clinical Orthopedics, Department of Clinical and Molecular Science, School of Medicine, Università Politecnica delle Marche, Ancona, Italy
| | - Daniele Massetti
- Divisione di Ortopedia e Traumatologia, Azienda Ospedaliero-Universitaria, Ospedali Riuniti di Ancona, Ancona, Italy
| | - Mario Marinelli
- Clinic of Adult and Paediatric Orthopedic, Azienda Ospedaliero-Universitaria, Ospedali Riuniti di Ancona, Ancona, Italy
| | - Antonio Pompilio Gigante
- Clinical Orthopedics, Department of Clinical and Molecular Science, School of Medicine, Università Politecnica delle Marche, Ancona, Italy,Clinic of Adult and Paediatric Orthopedic, Azienda Ospedaliero-Universitaria, Ospedali Riuniti di Ancona, Ancona, Italy
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Zhou X, Wang B, Liu Y, Wang Z, Zhao X, Liu F, Lu S, Xu W, Li L, Dong J. Comparative Study Between the Mini-Open (≤2.5 Cm) Approach and Conventional Open Lateral Approach in the Surgical Treatment of Radial Head Fractures. J Pain Res 2022; 15:3413-3422. [PMID: 36320225 PMCID: PMC9618242 DOI: 10.2147/jpr.s374599] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Accepted: 10/18/2022] [Indexed: 11/07/2022] Open
Abstract
Purpose The conventional lateral approach is widely used to treat radial head fractures with screws. However, the traditional incision may have shortcomings, including excessive exposure and significant scarring. We propose an innovative method – a mini-open lateral approach of less than 2.5 cm for surgical treatment of radial head fractures with screws. Methods From Jan 2017 to Dec 2020, 34 patients diagnosed with closed radial head fracture were treated with open reduction and internal fixation (ORIF) in this study. The novel group (mini-open group) included 15 patients, and the other 19 patients were in the traditional group. The time of operation and the blood loss during operation were recorded. Postoperative clinical outcomes and radiographic results were recorded and compared between the two groups. The range of motion (ROM) in the elbow, the Visual Analogue Scale (VAS), the Mayo Elbow Performance Score (MEPS), Rating Scale of the American Shoulder and Elbow Surgeons (ASES), and the Shortened Disabilities of the Arm, Shoulder and Hand Questionnaire (Q-DASH) score and complications, such as wound infection, vascular and nerve damage, and fragment redisplacement were observed in the two groups. Results In the comparison between the two groups, there was no significant difference in age, sex, cause of radial head fracture, or other basic information. The operation time, intraoperative blood loss, and VAS score at 3 days postoperation were significantly reduced in the novel group (p < 0.05). The follow-up results showed that there was no significant difference in MEPS, ASES, or Q-DASH scores between the two groups. Conclusion The mini-open approach reduced intraoperative blood loss, shortened operation time, relieved patient pain, and achieved a satisfactory postoperative clinical result, which demonstrates that the novel approach is a safe and effective option for treating radial head fractures.
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Affiliation(s)
- Xiaofeng Zhou
- Department of Orthopaedics Surgery, Shandong Provincial Hospital, Shandong University, Jinan, People’s Republic of China
| | - Bingzhi Wang
- Department of Orthopaedics Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, People’s Republic of China
| | - Yu Liu
- Department of Orthopaedics Surgery, Shandong Provincial Hospital, Shandong University, Jinan, People’s Republic of China
| | - Zicheng Wang
- Department of Orthopaedics Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, People’s Republic of China
| | - Xuehui Zhao
- Department of Orthopaedics Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, People’s Republic of China
| | - Fanxiao Liu
- Department of Orthopaedics Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, People’s Republic of China
| | - Shun Lu
- Department of Orthopaedics Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, People’s Republic of China
| | - Weicheng Xu
- Department of Orthopaedics Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, People’s Republic of China
| | - Lianxin Li
- Department of Orthopaedics Surgery, Shandong Provincial Hospital, Shandong University, Jinan, People’s Republic of China,Department of Orthopaedics Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, People’s Republic of China,Correspondence: Lianxin Li, Department of Orthopaedics, Shandong Provincial Hospital, Shandong University, Jinan, Shandong, 250021, People’s Republic of China, Tel +8613505312449, Email
| | - Jinlei Dong
- Department of Orthopaedics Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, People’s Republic of China,Jinlei Dong, Department of Orthopaedics, Shandong Provincial Hospital affiliated to Shandong First Medical University, Jinan, Shandong, 250021, People’s Republic of China, Tel +861509874540, Email
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Making Hardware Removal Unnecessary by Using Resorbable Implants for Osteosynthesis in Children. CHILDREN 2022; 9:children9040471. [PMID: 35455515 PMCID: PMC9031809 DOI: 10.3390/children9040471] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Revised: 03/08/2022] [Accepted: 03/21/2022] [Indexed: 11/30/2022]
Abstract
Introduction: Following osteosynthesis, children generally require a second surgery to remove the hardware. This becomes unnecessary, by using resorbable implants. Limiting the number of required surgeries and their associated risks, this technique provides critical aspects of minimally invasive surgery. This review focuses on resorbable implants for osteosynthesis for the treatment of fractures in children and discusses their clinical features. Method: We provide an overview of the two most common technologies used in resorbable osteosynthesis materials: polymer- and magnesium-based alloys. Clinical examples of osteosynthesis are presented using polymer-based ActivaTM products and magnesium-based Magnezix® products. Results: Polymer-based implants demonstrate surgical safety and efficacy. Due to their elasticity, initial placement of polymer-based products may demonstrate technical challenges. However, stability is maintained over the course of healing. While maintaining good biocompatibility, the rate of polymer-resorption may be controlled by varying the composition of polyesters and copolymers. Similarly, magnesium-based implants demonstrate good mechanical stability and resorption rates, while these characteristics may be controlled by varying alloy components. One of the significant shortcomings of magnesium is that metabolism results in the production of hydrogen gas. Both technologies provide equally good results clinically and radiographically, when compared to non-resorbable implants. Conclusion: Resorbable osteosynthesis materials demonstrate similar therapeutic results as conventional materials for osteosynthesis. Resorbable implants may have the potential to improve patient outcomes, by sparing children a second surgery for hardware removal.
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Pisecky L, Luger M, Klasan A, Gotterbarm T, Klotz MC, Hochgatterer R. Bioabsorbable implants in forefoot surgery: a review of materials, possibilities and disadvantages. EFORT Open Rev 2021; 6:1132-1139. [PMID: 35839087 PMCID: PMC8693227 DOI: 10.1302/2058-5241.6.200157] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
Bioabsorbable and biodegradable implants offer new possibilities in orthopaedic and trauma surgery. As soon as the initial stability of the degradable implants has reached the qualities of conventional materials, new devices may find usage in younger and more demanding patients. Residual conventional osteosynthetic material or the necessity to remove metal increasingly seems to be more of an adverse event than daily practice in forefoot surgery. Nevertheless, some drawbacks need to be discussed. Recent literature screened for the use of bioabsorbable and biodegradable materials in forefoot surgery, available implants and indications in forefoot surgery were analysed and summarized. Apart from common indications in forefoot surgery, points of interest were the type of biomaterial, the process of biodegradation and biointegration, and possible adverse events. Materials were comprehensively discussed for each indication based on the available literature. Polylactide, polyglycoside and polydioxanone are considered safe and sufficiently stable for use in forefoot surgery. Low complication rates (e.g. 0.7% for pin fixation in hallux deformities) are given. Magnesium implants suffered from an extensive corrosive process in the first generation but now seem to be safe in forefoot surgery and offer good options compared with conventional titanium screws, especially in procedures of the first ray. Allograft bone has proven feasibility in small case series, but still lacks larger or randomized clinical trials. The first results are promising. Bioresorbable and osseointegrating devices offer attractive new possibilities for surgeons and patients. Despite all the known advantages, the difficulties and possible complications must not be forgotten, such as soft tissue reactions, unwanted osteolysis and a lower primary mechanical load capacity. Cite this article: EFORT Open Rev 2021;6:1132-1139. DOI: 10.1302/2058-5241.6.200157
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Affiliation(s)
- Lorenz Pisecky
- Department for Orthopaedics and Traumatology, Kepler University Hospital GmbH, Johannes Kepler University Linz, Linz, Austria
| | - Matthias Luger
- Department for Orthopaedics and Traumatology, Kepler University Hospital GmbH, Johannes Kepler University Linz, Linz, Austria
| | - Antonio Klasan
- Department for Orthopaedics and Traumatology, Kepler University Hospital GmbH, Johannes Kepler University Linz, Linz, Austria
| | - Tobias Gotterbarm
- Department for Orthopaedics and Traumatology, Kepler University Hospital GmbH, Johannes Kepler University Linz, Linz, Austria
| | - Matthias C. Klotz
- Department for Orthopaedics and Traumatology, Kepler University Hospital GmbH, Johannes Kepler University Linz, Linz, Austria
| | - Rainer Hochgatterer
- Department for Orthopaedics and Traumatology, Kepler University Hospital GmbH, Johannes Kepler University Linz, Linz, Austria
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Baldini M, Coppa V, Falcioni D, Senigagliesi E, Marinelli M, Gigante AP. Use of resorbable magnesium screws in children: systematic review of the literature and short-term follow-up from our series. J Child Orthop 2021; 15:194-203. [PMID: 34211595 PMCID: PMC8223084 DOI: 10.1302/1863-2548.15.210004] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/08/2021] [Accepted: 04/06/2021] [Indexed: 02/03/2023] Open
Abstract
PURPOSE Biodegradable implants are of major interest in orthopaedics, especially in the skeletally immature population. Magnesium (Mg) implants are promising for selected surgical procedure in adults, but evidence is lacking. Thus, the aim of this study is to analyze the safety and efficacy of resorbable Mg screw in different orthopaedic procedures in skeletally immature patients. In addition, we present a systematic review of the current literature on the clinical use of Mg implants. METHODS From 2018 until the writing of this manuscript, consecutive orthopaedic surgical procedures involving the use of Mg screws performed at our centre in patients < 15 years of age were retrospectively reviewed. In addition, a systematic review of the literature was performed in the main databases. We included clinical studies conducted on humans, using Mg-alloy implants for orthopaedic procedures. RESULTS A total of 14 patients were included in this retrospective analysis. Mean age at surgery was 10.8 years (sd 2.4), mean follow-up was 13.8 months (sd 7.5). Healing was achieved in all the procedures, with no implant-related adverse reaction. No patients required any second surgical procedure. The systematic review evidenced 20 clinical studies, 19 of which conducted on an adult and one including paediatric patients. CONCLUSION Evidence on resorbable Mg implants is low but promising in adults and nearly absent in children. Our series included apophyseal avulsion, epiphyseal fractures, osteochondritis dissecans, displaced osteochondral fragment and tendon-to-bone fixation. Mg screws guaranteed stable fixation, without implant failure, with good clinical and radiological results and no adverse events. LEVEL OF EVIDENCE IV - Single cohort retrospective analysis with systematic review.
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Affiliation(s)
- Marco Baldini
- Clinical Orthopedics, Department of Clinical and Molecular Science, School of Medicine, Università Politecnica delle Marche, Ancona, Italy
| | - Valentino Coppa
- Clinical Orthopedics, Department of Clinical and Molecular Science, School of Medicine, Università Politecnica delle Marche, Ancona, Italy
| | - Danya Falcioni
- Clinic of Adult and Paediatric Orthopedic, Azienda Ospedal-iero-Universitaria, Ospedali Riuniti di Ancona, Ancona, Italy
| | - Elisa Senigagliesi
- Clinical Orthopedics, Department of Clinical and Molecular Science, School of Medicine, Università Politecnica delle Marche, Ancona, Italy
| | - Mario Marinelli
- Clinical Orthopedics, Department of Clinical and Molecular Science, School of Medicine, Università Politecnica delle Marche, Ancona, Italy
| | - Antonio Pompilio Gigante
- Clinical Orthopedics, Department of Clinical and Molecular Science, School of Medicine, Università Politecnica delle Marche, Ancona, Italy
- Clinic of Adult and Paediatric Orthopedic, Azienda Ospedal-iero-Universitaria, Ospedali Riuniti di Ancona, Ancona, Italy
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