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Sobrero F, Roccia F, Omedè M, Merlo F, Dubron K, Politis C, Rabufetti A, Scolozzi P, Ramieri G, Birk A, Vesnaver A, Rizvi AO, Laverick S, Jelovac D, Konstantinovic VS, Vilaplana V, Roig AM, Goetzinger M, Bottini GB, Knežević P, Dediol E, Kordić M, Sivrić A, Derkuş FE, Yilmaz UN, Ganasouli D, Zanakis SN. Current Strategies for Treatment of Mandibular Fractures With Plate Osteosynthesis: A European Prospective Study. J Craniofac Surg 2024; 35:1120-1124. [PMID: 38713082 DOI: 10.1097/scs.0000000000010128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Accepted: 01/22/2024] [Indexed: 05/08/2024] Open
Abstract
PURPOSE The training and preferences of surgeons influence the type of surgical treatment for mandibular fractures. This multicentre prospective study analyzed the current treatment strategies and outcomes for mandibular fractures with open reduction and internal fixation (ORIF). MATERIAL AND METHODS This prospective study included patients aged ≥16 years who underwent ORIF for mandibular fractures in 12 European maxillofacial centers. Age, sex, pretrauma dental status, fracture cause, site and type, associated facial fractures, surgical approach, plate number and thickness (≤1.4 or ≥1.5 mm), duration of postoperative maxillomandibular fixation, occlusal and infective complications at 6 weeks and 3 months, and revision surgeries were recorded. RESULTS Between May 1, 2021 and April 30, 2022, 425 patients (194 single, 182 double, and 49 triple mandibular fractures) underwent ORIF for 1 or more fractures. Rigid osteosynthesis was performed for 74% of fractures and was significantly associated with displaced ( P =0.01) and comminuted ( P =0.03) fractures and with the number of nonsurgically treated fracture sites ( P =0.002). The angle was the only site associated with nonrigid osteosynthesis ( P <0.001). Malocclusions (5.6%) and infective complications (5.4%) were not associated with osteosynthesis type. CONCLUSION Rigid osteosynthesis was the most frequently performed treatment at all fracture sites, except the mandibular angle, and was significantly associated with displaced and comminuted fractures and the number of nonsurgically treated fracture sites. No significant differences were observed regarding postoperative malocclusion or infections among osteosynthesis types.
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Affiliation(s)
- Federica Sobrero
- Department Surgical Science, Division of Maxillofacial Surgery, University of Turin, Turin, Italy
| | - Fabio Roccia
- Department Surgical Science, Division of Maxillofacial Surgery, University of Turin, Turin, Italy
| | - Michela Omedè
- Department Surgical Science, Division of Maxillofacial Surgery, University of Turin, Turin, Italy
| | - Francesca Merlo
- Department Surgical Science, Division of Maxillofacial Surgery, University of Turin, Turin, Italy
| | - Kathia Dubron
- Department Oral and Maxillofacial Surgery, Faculty of Medicine, Catholic University of Leuven, Leuven, Belgium
| | - Constantinus Politis
- Department Oral and Maxillofacial Surgery, Faculty of Medicine, Catholic University of Leuven, Leuven, Belgium
| | - Alessandro Rabufetti
- Division of Oral and Maxillofacial Surgery, Department of Surgery, Faculty of Medicine, University of Geneva & University Hospitals of Geneva, Geneva, Switzerland
| | - Paolo Scolozzi
- Division of Oral and Maxillofacial Surgery, Department of Surgery, Faculty of Medicine, University of Geneva & University Hospitals of Geneva, Geneva, Switzerland
| | - Guglielmo Ramieri
- Department Surgical Science, Division of Maxillofacial Surgery, University of Turin, Turin, Italy
| | - Anže Birk
- Department of Maxillofacial and Oral Surgery, University Medical Centre, Ljubljana, Slovenia
| | - Aleš Vesnaver
- Department of Maxillofacial and Oral Surgery, University Medical Centre, Ljubljana, Slovenia
| | - Ali O Rizvi
- Department of Oral and Maxillofacial Surgery, University of Dundee, Dundee, United Kingdom
| | - Sean Laverick
- Department of Oral and Maxillofacial Surgery, University of Dundee, Dundee, United Kingdom
| | - Drago Jelovac
- Clinic of Maxillofacial Surgery, School of Dental Medicine, University of Belgrade, Belgrade, Serbia
| | - Vitomir S Konstantinovic
- Clinic of Maxillofacial Surgery, School of Dental Medicine, University of Belgrade, Belgrade, Serbia
| | - Valentines Vilaplana
- Department of Oral and Maxillofacial Surgery, University Hospital of Bellvitge, Barcelona, Spain
| | - Antonio Mari Roig
- Department of Oral and Maxillofacial Surgery, University Hospital of Bellvitge, Barcelona, Spain
| | - Maximilian Goetzinger
- Department of Oral and Maxillofacial Surgery, Paracelsus Medical University, Salzburg, Austria
| | - Gian Battista Bottini
- Department of Oral and Maxillofacial Surgery, Paracelsus Medical University, Salzburg, Austria
| | - Predrag Knežević
- Department of Maxillofacial Surgery, University Hospital Dubrava, Zagreb, Croatia
| | - Emil Dediol
- Department of Maxillofacial Surgery, University Hospital Dubrava, Zagreb, Croatia
| | - Mario Kordić
- Clinic for ENT and OMS, University Clinical Hospital, Mostar, Bosnia and Herzegovina
| | - Anamaria Sivrić
- Clinic for ENT and OMS, University Clinical Hospital, Mostar, Bosnia and Herzegovina
| | - Fatma Eriş Derkuş
- Department of Oral and Maxillofacial Surgery, Dicle University, Diyarbakir, Turkey
| | - Utku Nezih Yilmaz
- Department of Oral and Maxillofacial Surgery, Dicle University, Diyarbakir, Turkey
| | - Dimitra Ganasouli
- Department of Oral and Maxillofacial Surgery, Hippocratio General Hospital, Athens, Greece
| | - Stylianos N Zanakis
- Department of Oral and Maxillofacial Surgery, Hippocratio General Hospital, Athens, Greece
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El-Sherif HM, Ali S, Talaat M, Mubarak F. Stability and Clinical Outcomes of Angle Fracture Fixation Using Sagittal Split Plate (SSOP) Versus Two Miniplates: Randomized Clinical Trial. J Maxillofac Oral Surg 2024; 23:107-113. [PMID: 38312972 PMCID: PMC10830940 DOI: 10.1007/s12663-022-01817-z] [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: 02/27/2021] [Accepted: 10/31/2022] [Indexed: 11/18/2022] Open
Abstract
The aim of this study was to compare the stability and clinical outcomes between the two miniplates and sagittal split plate (SSOP) in angle fracture fixation. Thirty-eight patients with a mandibular angle fracture were selected and divided randomly into two groups. Intervention was treated with SSOP, and the control group was treated with conventional two miniplates. Clinical evaluation included occlusion, edema, nerve affection, wound dehiscence and mouth opening. Radiographic parameters included the measurement of inter-ramus distance, inter-mental distance and bone density. All clinical parameters were evaluated at one week, one month and three months intervals. Radiographic parameters were evaluated immediately postoperative, and after three months. Results showed that SSOP had less postoperative complications (10.50%) than the two miniplates (31.60%). It can be concluded that both methods offered high performance in management of mandibular angle fractures. However, SSOP group had a significantly shorter operating time, increased bone density and less edema. Clinical trial registration number: NCT03839368.
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Affiliation(s)
- Hagar M. El-Sherif
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Cairo University, Cairo, Egypt
- Nasser Institute Hospital for Research and Treatment, Cairo, Egypt
- Maxillofacial Surgery Department of Craniomaxillofacial Surgery at Nasser Institute Hospital for Research and Treatment, Shubra, Cairo, 11672 Egypt
| | - Sherif Ali
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Cairo University, Cairo, Egypt
- Nasser Institute Hospital for Research and Treatment, Cairo, Egypt
| | - Mostafa Talaat
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Cairo University, Cairo, Egypt
- Nasser Institute Hospital for Research and Treatment, Cairo, Egypt
| | - Fahmy Mubarak
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Cairo University, Cairo, Egypt
- Nasser Institute Hospital for Research and Treatment, Cairo, Egypt
- Department of Craniomaxillofacial Surgery at Nasser Institute Hospital for Research and Treatment, Cairo, Egypt
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Oksa M, Haapanen A, Marttila E, Furuholm J, Snäll J. Postoperative wound dehiscence in mandibular fractures. Acta Odontol Scand 2023; 81:555-561. [PMID: 37171859 DOI: 10.1080/00016357.2023.2211156] [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: 02/05/2023] [Accepted: 05/02/2023] [Indexed: 05/13/2023]
Abstract
OBJECTIVE To clarify the occurrence and causes of non-infection-related surgical wound dehiscence (SWD) in intraorally treated mandibular fractures. MATERIAL AND METHODS Patients with one or two fractures of the dentate part of the mandible treated surgically via an intraoral approach were included in this retrospective study. The primary outcome variable was SWD. Associations between patient-, fracture- and surgery-related variables and SWD were evaluated. RESULTS Altogether 232 patients with 270 mandibular angle, body, symphysis and/or parasymphysis fractures were included in the analysis. In all, 22 SWDs were detected. These occurred in 9.5% of patients and in 8.1% of fractures. Surgery performed at night-time showed a significantly higher SWD rate than daytime surgeries (p = .012). Additionally, a significantly greater SWD rate was found among smokers (p = .041). Other studied variables remained statistically non-significant for SWD. In a multivariate analysis, night-time was the only significant independent variable with an odds ratio of 3.297 (95% CI 1.238 - 8.780, p = .017) for SWD. CONCLUSION The approach or closure technique used and the fracture type had only a minor effect on non-infection-related SWD in patients with mandibular fractures. To avoid SWDs, mandibular fracture surgeries should be conducted during the daytime with adequate support from an experienced surgeon.
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Affiliation(s)
- Marko Oksa
- Department of Oral and Maxillofacial Diseases, University of Helsinki, Helsinki, Finland, and Helsinki University Hospital, Helsinki, Finland
| | - Aleksi Haapanen
- Department of Oral and Maxillofacial Diseases, University of Helsinki, Helsinki, Finland, and Helsinki University Hospital, Helsinki, Finland
| | - Emilia Marttila
- Department of Oral and Maxillofacial Diseases, University of Helsinki, Helsinki, Finland, and Helsinki University Hospital, Helsinki, Finland
| | - Jussi Furuholm
- Department of Oral and Maxillofacial Diseases, University of Helsinki, Helsinki, Finland, and Helsinki University Hospital, Helsinki, Finland
| | - Johanna Snäll
- Department of Oral and Maxillofacial Diseases, University of Helsinki, Helsinki, Finland, and Helsinki University Hospital, Helsinki, Finland
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Singla S, Narula R, Kuthiala P, Mittal A, Brar HS, Singla M. Management of Mandibular Angle Fractures Using Single Y-Shaped Titanium Miniplate at the Superior Border: A Prospective Clinical Study. Indian J Otolaryngol Head Neck Surg 2022; 74:4495-4499. [PMID: 36742875 PMCID: PMC9895681 DOI: 10.1007/s12070-020-02342-6] [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: 11/23/2020] [Accepted: 12/15/2020] [Indexed: 02/07/2023] Open
Abstract
Treatment of angle fractures remains controversial. The various techniques documented for the treatment are: wire osteosynthesis, one miniplate at superior border (2.0 mm), a single plate on inferior border (2.3 or 2.7 mm) along with tension band in the form of arch bar at the upper border, 2 miniplates (1 at superior border and 1 at inferior border), 3-D strut plates or lag screw. To evaluate the efficacy of single Y-shaped titanium miniplate at the superior border in the management of mandibular angle fractures. Total of 15 healthy adult patients reporting to the department of Oral and Maxillofacial Surgery for the treatment of mandibular angle fractures was randomly selected. All the cases were assessed clinically at 1st post-operative day, 1st, 3rd, 6th and 12th week post-operatively for pain, status of occlusion, neurosensory deficit and postoperative hard & soft tissue healing. Radiographic assessment was also done at 1st postoperative day, 6 weeks and 12 weeks. Postoperative pain, infection, wound dehiscence, neurosensory deficit were not evident during the follow- up periods. Radiographically, the fracture reduction was good and plate fracture was not seen in any case. Y- shaped titanium miniplate is an effective method in the management of the mandibular angle fractures and provided satisfactory results.
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Affiliation(s)
- Sunaina Singla
- Department of Oral and Maxillofacial Surgery, Guru Nanak Dev Dental College & Research Institute, Sunam, 148028 India
| | - Ravi Narula
- Department of Oral and Maxillofacial Surgery, Guru Nanak Dev Dental College & Research Institute, Sunam, 148028 India
| | - Parnika Kuthiala
- Department of Oral and Maxillofacial Surgery, Shaheed Kartar Singh Sarabha Dental College & Hospital, Sarabha, Punjab 141105 India
| | - Ajay Mittal
- Department of Oral and Maxillofacial Surgery, Guru Nanak Dev Dental College & Research Institute, Sunam, 148028 India
| | - Hirdepal Singh Brar
- Department of Oral and Maxillofacial Surgery, Guru Nanak Dev Dental College & Research Institute, Sunam, 148028 India
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Vitkos EN, Papadopoulos KA, Dimasis P, Weissinger C, Kyrgidis A. One miniplate versus two miniplates in the fixation of mandibular angle fractures. An updated systematic review and meta-analysis. JOURNAL OF STOMATOLOGY, ORAL AND MAXILLOFACIAL SURGERY 2022; 123:e865-e873. [PMID: 35872351 DOI: 10.1016/j.jormas.2022.07.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2022] [Revised: 07/10/2022] [Accepted: 07/13/2022] [Indexed: 11/15/2022]
Abstract
PURPOSE The aim of this study is to compare the outcomes after using one miniplate fixation in the external oblique ridge versus two miniplate fixation for mandibular angle fractures. METHODS A systematic review of MEDLINE (via PubMed), Scopus and Cochrane Library database was performed (last search date: 04 February 2022) according to the PRISMA guidelines. The research question was addressed using the PICO criteria. Only comparative studies between the two techniques were included. Random-effects model meta-analyses were performed. RESULTS Seventeen studies, comprising a total of 1667 patients, 846 undergoing one miniplate fixation and 854 undergoing two miniplate fixation for mandibular angle fractures were identified. No statistically significant differences were observed regarding surgical site infection (odds ratio [OR]= 0.94, 95% confidence interval [CI]: [0.69] - [1.28], p = 0.68, I2=0.00%), post-operative malocclusion (OR= 0.97, 95% CI: [0.53] - [1.18], p = 0.25, I2=0.00%), post-operative neurosensory dysfunction (OR= 0.67, 95% CI: [0.37] - [1.22], p = 0.19, I2=73.93%), pseudoarthrosis formation (OR=0.90, 95% CI: [0.58] - [(1.39], p = 0.63, I2=0.00%). Wound dehiscence was marginally less common in the one miniplate group (OR=0.52, 95% CI: [0.28] - [0.98], p = 0.04, I2=54.34%). The probability of scarring formation (OR=0.13, 95% CI: [0.05] - [0.32], p = 0.00, I2=0.00%) and hardware failure (OR=0.36, 95% CI [0.21] - [0.62], p = 0.00, I2=29.33%) were statistically significantly higher in the two miniplates arm. CONCLUSION One miniplate fixation and two miniplates fixation of mandibular angle fractures have similar results regarding post operative infection, malocclusion, neurosensory dysfunction and pseudoarthrosis formation while wound dehiscence, hardware failure and scarring seem to be more common when two miniplates are used as a fixation technique.
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Affiliation(s)
- Evangelos N Vitkos
- Department of General Surgery, General Hospital of Katerini, Katerini, Greece.
| | | | - Periklis Dimasis
- Department of General Surgery, General Hospital of Katerini, Katerini, Greece
| | - Christian Weissinger
- Division of Oral and Maxillofacial Surgery, Department of Surgery, University Hospitals of Geneva, Switzerland
| | - Athanassios Kyrgidis
- Department of Oral and Maxillofacial Surgery, faculty of Dentistry, Aristotle University of Thessaloniki, Thessaloniki, Greece
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Haravu PN, Abraha HM, Shang M, Iriarte-Diaz J, Taylor AB, Reid RR, Ross CF, Panagiotopoulou O. Macaca mulatta is a good model for human mandibular fixation research. ROYAL SOCIETY OPEN SCIENCE 2022; 9:220438. [PMID: 36405636 PMCID: PMC9667141 DOI: 10.1098/rsos.220438] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/05/2022] [Accepted: 10/26/2022] [Indexed: 06/16/2023]
Abstract
Biomechanical and clinical studies have yet to converge on the optimal fixation technique for angle fractures, one of the most common and controversial fractures in terms of fixation approach. Prior pre-clinical studies have used a variety of animal models and shown abnormal strain environments exacerbated by less rigid (single-plate) Champy fixation and chewing on the side opposite the fracture (contralateral chewing). However, morphological differences between species warrant further investigation to ensure that these findings are translational. Here we present the first study to use realistically loaded finite-element models to compare the biomechanical behaviour of human and macaque mandibles pre- and post-fracture and fixation. Our results reveal only small differences in deformation and strain regimes between human and macaque mandibles. In the human model, more rigid biplanar fixation better approximated physiologically healthy global bone strains and moments around the mandible, and also resulted in less interfragmentary strain than less rigid Champy fixation. Contralateral chewing exacerbated deviations in strain, moments and interfragmentary strain, especially under Champy fixation. Our pre- and post-fracture fixation findings are congruent with those from macaques, confirming that rhesus macaques are excellent animal models for biomedical research into mandibular fixation. Furthermore, these findings strengthen the case for rigid biplanar fixation over less rigid one-plate fixation in the treatment of isolated mandibular angle fractures.
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Affiliation(s)
- Pranav N. Haravu
- Department of Surgery, Section of Plastic Surgery, The University of Chicago Medical Centre, Chicago, IL, USA
| | - Hyab Mehari Abraha
- Monash Biomedicine Discovery Institute, Department of Anatomy and Developmental Biology, Monash University, Victoria, Australia
| | - Michelle Shang
- Department of Surgery, Section of Plastic Surgery, The University of Chicago Medical Centre, Chicago, IL, USA
| | - Jose Iriarte-Diaz
- Department of Biology, The University of the South, Sewanee, TN, USA
| | | | - Russell R. Reid
- Department of Surgery, Section of Plastic Surgery, The University of Chicago Medical Centre, Chicago, IL, USA
| | - Callum F. Ross
- Department of Organismal Biology and Anatomy, University of Chicago, Chicago, IL, USA
| | - Olga Panagiotopoulou
- Monash Biomedicine Discovery Institute, Department of Anatomy and Developmental Biology, Monash University, Victoria, Australia
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Is Open Reduction Internal Fixation Using Titanium Plates in the Mandible as Successful as We Think? J Craniofac Surg 2021; 33:1032-1036. [PMID: 34608010 DOI: 10.1097/scs.0000000000008258] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
ABSTRACT Titanium plats are the gold-standard for fracture fixation. Titanium is considered biocompatible, corrosion resistant with an elasticity-modulus closest to bone. Nonetheless, titanium plates are not always as inherent as hoped. The authors investigated morbidity associated with titanium plates in mandibular fractures. A retrospective study of mandibular fractures treated between 2000 and 2018 using internal-fixation was conducted. Data included age, gender, complications, and location. Predictor-variable was location. Outcome-variable was plate removal. A total of 571 patients were included, 107 resulted in plate removal (18.7%). Body was the most prevalent location of fracture (29.3%). Symphysis/para-symphysis showed the highest removal rate (24.1%), followed by body and angle (21.3/19.8%). A total of 23.4% of double-plating cases resulted in plate removal, upper-border in 15% and lower-border in 8.8%, all reconstruction-plates. Exposure was the most frequent complication leading to removal. Although titanium plates are the gold standard, almost every fifth patient returns for plate removal. Age-distribution emphasizing 41 to 50 with decrease towards extremities may imply better healing in the young and soft-tissue elasticity and less complaints in the elderly. Significantly more complications in double-plating compared to lower border suggests proximity to the oral-cavity as a risk-factor for removal. Complication rates and patterns are not negligible and perhaps should encourage clinicians to consider using biodegradable-systems for upper-border plates.
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Falci SGM, de Souza GM, Fernandes IA, Galvão EL, Al-Moraissi EA. Complications after different methods for fixation of mandibular angle fractures: network meta-analysis of randomized controlled trials. Int J Oral Maxillofac Surg 2021; 50:1450-1463. [PMID: 33676800 DOI: 10.1016/j.ijom.2021.02.009] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Revised: 12/14/2020] [Accepted: 02/04/2021] [Indexed: 10/22/2022]
Abstract
The aim of this review was to compare mandibular angle fracture fixation methods that were evaluated through randomized clinical trials considering postoperative complications. Additionally, different treatment methods were ranked based on their performance. A systematic review was performed based on the Cochrane and PRISMA guidelines. The quality of evidence and network meta-analysis were conducted using the GRADE tool and R software, respectively. Four databases were searched, and the papers were selected based on the PICOS strategy. A total of 3584 papers were found. After screening 15 papers were included. One plate placed on lateral border (tension zone) presented lower risk than one plate placed on superior border (tension zone) for infection [risk ratio (RR): 0.48, 95% confidence interval (CI): 0.33 to 0.71] and plate removal necessity (RR: 0.44, 95% CI: 0.28 to 0.69), with moderate quality of evidence. There were no significant differences among the mandibular angle fracture treatments for malocclusion and paraesthesia outcomes. In conclusion, one plate placed on the lateral border in the tension zone is the best choice regarding postoperative infection and plate removal necessity when fixing mandibular angle fractures. None of the tested fixation methods were associated with a significant risk of malocclusion and paraesthesia events.
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Affiliation(s)
- S G M Falci
- Oral and Maxillofacial Section, Department of Dentistry, Universidade Federal dos Vales do Jequitinhonha e Mucuri, Diamantina, Brazil.
| | - G M de Souza
- Oral and Maxillofacial Section, Department of Dentistry, Universidade Federal dos Vales do Jequitinhonha e Mucuri, Diamantina, Brazil
| | - I A Fernandes
- Oral and Maxillofacial Section, Department of Dentistry, Universidade Federal dos Vales do Jequitinhonha e Mucuri, Diamantina, Brazil
| | - E L Galvão
- Oral and Maxillofacial Section, Department of Dentistry, Universidade Federal dos Vales do Jequitinhonha e Mucuri, Diamantina, Brazil
| | - E A Al-Moraissi
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Thamar University, Thamar, Yemen
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Surgical Management of Mandibular Angle Fractures: Does the Extraction of the Third Molar Lead to a Change in the Fixation Pattern? A European Multicenter Survey. J Oral Maxillofac Surg 2020; 79:404-411. [PMID: 33064980 DOI: 10.1016/j.joms.2020.09.022] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Revised: 09/02/2020] [Accepted: 09/14/2020] [Indexed: 11/24/2022]
Abstract
PURPOSE The authors conducted a retrospective, multicenter study to investigate the differences in the fixation patterns, in terms of number and thickness of plates, between patients in whom a third molar (3M) was maintained or removed in the line of mandibular angle fractures. MATERIALS AND METHODS The study was conducted in 6 European level I and II maxillofacial trauma centers. Data were collected on patients ≥ 16 years of age who underwent open reduction internal fixation (ORIF) for mandibular angle fractures (MAF) from 2008 to 2018, in whom a 3M in the fracture line was present and who had a follow-up duration of 6 months. The study population was divided into 2 groups: patients treated with ORIF in whom the 3M was maintained (group 1) and those treated with ORIF in whom the 3M was extracted (group 2) during treatment. The 2 groups were compared for differences in the internal fixation pattern, specifically in terms of the number and thickness of the plates. RESULTS A total of 749 patients with 774 MAF were collected. A total of 1,050 plates were placed: 849 were ≤ 1.4 mm thick (80.9%) and 201 plates ≥ 1.5 mm thick (19.1%). 548 patients were treated with ORIF and 3M maintained (group 1), and 201 treated with ORIF and 3M extracted (group 2). Statistically significant differences were seen in the number of ≤1.4 mm plates between the 2 groups for single undisplaced/displaced MAF(P value ≤ 0.5) and for undisplaced/displaced angle + parasymphysis/body fractures (P-value ≤ 0.5). CONCLUSIONS Analyses of data collected from 6 European maxillofacial centers indicated that the majority of surgeons of our sample perceived the MAF as being more unstable when removing the 3M during ORIF leading them to perform a rigid fixation in the angular region.
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Ramos A, Semedo T, Mesnard M. Study of fixation of a mandibular plate for favourable fractures of the mandibular angle: numerical predictions. Br J Oral Maxillofac Surg 2020; 58:652-658. [DOI: 10.1016/j.bjoms.2020.03.009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2019] [Accepted: 03/09/2020] [Indexed: 10/24/2022]
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Pałka Ł, Kuryło P, Klekiel T, Pruszyński P. A mechanical study of novel additive manufactured modular mandible fracture fixation plates - Preliminary Study with finite element analysis. ✰. Injury 2020; 51:1527-1535. [PMID: 32362448 DOI: 10.1016/j.injury.2020.03.057] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/05/2020] [Revised: 02/22/2020] [Accepted: 03/29/2020] [Indexed: 02/02/2023]
Abstract
The paper presents an innovative osteofixation system designed for bone fracture stabilization. Its special feature, which makes it different from other similar systems, is the possibility to precisely adjust the implant to the shape of the bone. Such a precise adjustment is particularly important in the case of multiple fractures, where proper stabilization is a condition for restoring bone geometry and thus obtaining the biomechanical function of a given segment of the body lost due to fracture. Based on the tested properties of the implant material, the presented system structure was verified for loading, stress, and share forces in multi-site fractures of the mandible. Numerical tests were performed for three different fracture models: unilateral double fracture of the body of mandible, unilateral double fracture of the body and the angle of mandible, and bilateral fracture of the mandible at the angle and body of the mandible. The results indicate that the proposed system may be used to stabilize broken bone fragments successfully, and the obtained stabilization would allow unrestricted use of the chewing function during bone healing and remodeling. The authors point out the advantages of the proposed implantation method thanks to which it is possible to obtain any shape of the implant and thus stabilize bone fragments in any case.
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Affiliation(s)
- Ł Pałka
- Science BioTech Company, Daszyńskiego 31/13, 50-310 Wrocław, Poland; Private Dental Practice, Rzeszowska 2, 68-200 Żary, Poland.
| | - P Kuryło
- Faculty of Mechanical Engineering, University of Zielona Góra, 65-516 Zielona Góra, Poland.
| | - T Klekiel
- Faculty of Mechanical Engineering, University of Zielona Góra, 65-516 Zielona Góra, Poland.
| | - P Pruszyński
- 105 Borderland Military Hospital of Żary, 68-200 Żary, Poland.
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12
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Complications of locking and non-locking plate systems in mandibular fractures. Int J Oral Maxillofac Surg 2019; 48:1213-1226. [DOI: 10.1016/j.ijom.2019.02.019] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2018] [Revised: 01/09/2019] [Accepted: 02/26/2019] [Indexed: 11/18/2022]
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Ferrari R, Lanzer M, Wiedemeier D, Rücker M, Bredell M. Complication rate in mandibular angle fractures-one vs. two plates: a 12-year retrospective analysis. Oral Maxillofac Surg 2018; 22:435-441. [PMID: 30327980 DOI: 10.1007/s10006-018-0728-4] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2018] [Accepted: 10/09/2018] [Indexed: 06/08/2023]
Abstract
PURPOSE Treatment of mandibular angle fractures using one or two osteosynthesis plates is still a controversial topic. Fracture, treatment, and patient-dependent influencing factors could affect the overall outcome. In the present retrospective study, complication rates of mandibular angle fractures treated by open reduction were assessed according to type of treatment. MATERIALS AND METHODS We analyzed retrospective medical records using the search terms "mandibular angle fracture." We included all patients presenting with a mandibular angle fracture treated by open reduction and internal fixation at our department between 2002 and 2012. RESULTS We included 186 patients treated with open reduction and miniplate fixation (84 one plate; 102 two plates). The early complication rate was significantly higher for the double-plate group (72.5% vs. 47.6%, respectively; p = 0.001). Most common findings in the postoperative period were transient hypoesthesia and tissue swelling. In the two-plate group, a significantly increased operation time of 183 min versus 150 min in the one-plate group was found (p < 0.001). Late complications did not differ significantly between both groups (21.4% single-plate group; 30.4% two-plate fixation group; p = 0.32). CONCLUSION We found a significantly increased early complication rate in the two-plate group. Long-term complications did not differ between both groups.
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Affiliation(s)
- Raphael Ferrari
- Department of Craniomaxillofacial and Oral Surgery, University Hospital of Zurich, Zurich, Switzerland.
| | - M Lanzer
- Department of Craniomaxillofacial and Oral Surgery, University Hospital of Zurich, Zurich, Switzerland
| | - D Wiedemeier
- Statistical Services, Center of Dental Medicine, University of Zurich, Zurich, Switzerland
| | - M Rücker
- Department of Craniomaxillofacial and Oral Surgery, University Hospital of Zurich, Zurich, Switzerland
| | - M Bredell
- Cantonal Hospital Winterthur, Winterthur, Switzerland
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Yamaguchi S, Anchieta RB, Guastaldi FPS, Tovar N, Tawara D, Imazato S, Coelho PG. In Silico Analysis of the Biomechanical Stability of Commercially Pure Ti and Ti-15Mo Plates for the Treatment of Mandibular Angle Fracture. J Oral Maxillofac Surg 2017; 75:1004.e1-1004.e9. [PMID: 28137635 DOI: 10.1016/j.joms.2016.12.043] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2016] [Revised: 12/28/2016] [Accepted: 12/28/2016] [Indexed: 11/30/2022]
Abstract
PURPOSE To investigate the influence of different materials and fixation methods on maximum principal stress (MPS) and displacement in reconstruction plates using in silico 3-dimensional finite element analysis (3D-FEA). MATERIALS AND METHODS Computer-assisted designed (CAD) models of the mandible and teeth were constructed. Champy and AO/ASIF plates and fixation screws were designed with CAD software. 3D-FEA was performed by image-based CAE software. Maximum and minimum values of biomechanical stability, MPS, and displacement distribution were compared in Champy and AO/ASIF plates made from commercially pure titanium grade 2 (cp-Ti) and a titanium-and-molybdenum (14.47% wt) alloy (Ti-15Mo). RESULTS For plates fixed on a model of a fractured left angle of the mandible, the maximum and minimum values of MPS in the cp-Ti-constructed Champy plate, upper AO/ASIF plate, and lower AO/ASIF plate were 19.5 and 20.3%, 15.2 and 25.3%, and 21.4 and 4.6% lower, respectively, than those for plates made from Ti-15Mo. In the same model, the maximum and minimum values of displacement in the cp-Ti-constructed Champy plate, upper AO/ASIF plate, and lower AO/ASIF plate were 1.6 and 3.8%, 3.1 and 2.7%, and 5.4 and 10.4% higher, respectively, than those for plates made from Ti-15Mo. CONCLUSIONS This in silico 3D-FEA shows that Ti-15Mo plates have greater load-bearing capability.
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Affiliation(s)
- Satoshi Yamaguchi
- Associate Professor, Department of Biomaterials Science, Osaka University Graduate School of Dentistry, Osaka, Japan.
| | - Rodolfo B Anchieta
- Assistant Professor, Centro Universotário do Norte Paulista (UNORP), São José do Rio Preto, SP, Brazil
| | - Fernando P S Guastaldi
- Postdoctoral Research Fellow, Faculdade de Odontologia de Araraquara, UNESP - Universidate Estadual Paulista, Araraquara, SP, Brazil
| | - Nick Tovar
- Assistant Professor, Department of Biomaterials and Biomimetics, New York University, New York, NY
| | - Daisuke Tawara
- Assistant Professor, Department of Mechanical and Systems Engineering, Ryukoku University, Shiga, Japan
| | - Satoshi Imazato
- Professor, Department of Biomaterials Science, Osaka University Graduate School of Dentistry, Osaka, Japan
| | - Paulo G Coelho
- Associate Professor, Department of Biomaterials and Biomimetics, New York University, New York, NY
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