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  Table of Contents  
ORIGINAL ARTICLE
Year : 2014  |  Volume : 20  |  Issue : 1  |  Page : 26-29  

Pattern of midface trauma with associated concomitant injuries in a Nigerian Referral Centre


1 Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, University of Port Harcourt, Port Harcourt, Rivers State, Nigeria
2 Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, College of Medicine, University of Ibadan, Ibadan, Oyo State, Nigeria

Date of Web Publication14-Feb-2014

Correspondence Address:
Victor I Akinmoladun
Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, College of Medicine, University of Ibadan, Ibadan, Oyo State
Nigeria
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/1117-6806.127105

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  Abstract 

Aim: The aim of this study was to determine the pattern of midface trauma with associated concomitant injuries seen in our environment. Methodology: This was a prospective analysis of trauma patients with midfacial injuries presenting at a referral center in South West Nigeria. In addition to socio-demographic data, the following information was also obtained: Mechanism of injuries, type of midfacial injuries, concomitant/associated injuries and treatment. Results: A total of 101 patients with midfacial injuries were involved. They were made up of 85 males and 16 females. The 20-29 year age group was mostly affected (44.6%) and the most common cause of midface injuries was road traffic accident (91.1%). The zygoma was fractured more than any other midfacial bone (46.0%). A total of 144 associated injuries were recorded among these patients, head and ocular injuries accounted for 49 (34%) and 35 (24.3%) respectively. The patients were mostly treated conservatively or by closed reduction. Conclusion: The rate of head and ocular injuries among patients with midfacial injury was high. Knowledge of these associated injuries provides useful strategies for patient care and prevention of further complications. A multidisciplinary approach is important for optimum management of these patients.

Keywords: Concomitant injuries, midface trauma, multidisciplinary care


How to cite this article:
Udeabor S, Akinmoladun VI, Olusanya A, Obiechina A. Pattern of midface trauma with associated concomitant injuries in a Nigerian Referral Centre. Niger J Surg 2014;20:26-9

How to cite this URL:
Udeabor S, Akinmoladun VI, Olusanya A, Obiechina A. Pattern of midface trauma with associated concomitant injuries in a Nigerian Referral Centre. Niger J Surg [serial online] 2014 [cited 2019 Aug 17];20:26-9. Available from: http://www.nigerianjsurg.com/text.asp?2014/20/1/26/127105


  Introduction Top


The midface comprises the medial portion of the face including the upper maxillary region and the zygomatico-orbito-maxillary complex. [1] Facial bones, especially of the middle-third of the face, readily fracture more than bones in other parts of the body because they are composed of a network of fragile bones held together across sutures, which easily give way to minimal trauma. [2]

Maxillofacial injuries in general can occur in isolation, but most of the time when these injuries are as a result of high energy traumatic forces, patients often have other concomitant injuries. These injuries can be very severe and life-threatening often requiring multidisciplinary management. [3] An attempt is made in this present study to determine the pattern of injuries associated with trauma to the midface in an effort to emphasize the multidisciplinary nature of the care needed by many of these patients.


  Methodology Top


This was a prospective descriptive analysis of patients with midfacial injuries seen at our center over a period of 1 year. The study was approved by the Health Research Ethics Committee. We defined the midface as the area that lies between the lateral canthus of the eye superiorly and the angle of the mouth inferiorly, which on the facial skeleton extends downwards from the frontal bone to the level of the upper teeth or, if the patient is edentulous, the upper alveolus. Midfacial injuries were categorized into soft and hard tissue injuries after clinical and radiographic examinations. For each of the 101 patients seen, the following data were collected: Age, gender, mechanism of trauma, type of midfacial injuries and concomitant/associated injuries. Concomitant injuries were categorized into fractures other than those of the midface, head/neurological, orbital, thoracic and abdominal injuries.


  Results Top


Out of the 150 patients that presented to our center with maxillofacial injuries during the period of this study, 101 had midfacial injuries. Eighty five (84.2%) were males and 16 (15.8%) were females. The 20-29 year age group were mostly affected (44.6%), followed by the 30-39 years group (19.8%) [Figure 1] and the most common cause of midface injuries was road traffic accident (RTA) (92 patients, 91.1%) [Figure 2].
Figure 1: Age incidence of patients presenting with midface injuries

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Figure 2: Mechanism of injury/etiology

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Abrasion was the most common midfacial soft-tissue injury seen; accounting for 81 (40.1%) out of a total of 202 soft tissue injuries [Table 1], whereas zygomatic complex fracture was the most common hard tissue injury, accounting for 46 (46.0%) fractures among the 100 fractures of the middle-third facial region recorded [Table 2].
Table 1: Midfacial soft tissue injuries

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Table 2: Midfacial hard tissue injuries

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A total of 144 concomitant injuries were recorded among the patients. Out of these, head injury was highest (49; 34%) followed by ocular injuries (35; 24.3%) [Table 3].
Table 3: Concomitant injuries

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The main stay of treatment for midfacial fractures from the above study was conservative management and closed reduction with maxillomandibular fixation.


  Discussion Top


The zygomatico-maxillary complex, due to its prominent position in the face bears the impact of trauma in majority of the cases and has been shown to have the highest incidence of fractures in the maxillofacial region. [2] Trauma in general terms is regarded as the disease of men and the youth. This assertion is further corroborated by the present study in which most of the patients here were men within the 20-29 year age bracket. The main reason among others is the fact that motorbikes are mostly ridden by young men for commercial purpose in our environment and motorbike-related accidents accounted for 45.5% of all the midface injuries in this series. This pattern is in keeping with similar studies both in the developed and the developing world. [4],[5],[6],[7],[8],[9],[10]

The 20-29 years age group from this study was more involved with middle-third facial injuries than any other age group. This is also in keeping with reports from other studies from around the world. [6],[7],[11],[12],[13],[14],[15] The reason is not far-fetched as this age group shows high activity in assaults, sports, industry and high speed transportation. [5],[6]

Midfacial injuries from the present study were mainly caused by various forms of RTAs. This accounted for the injuries in 92 (91.1%) out of the 101 patients seen. The remaining 8.9% was accounted for by other causes such as assaults, falls, sports injuries and industrial accidents. Although this is in consonance with previous Nigerian studies and indeed studies from other developing countries, [6],[7],[8],[16],[17] it contrasts reports from the developed countries where assaults and interpersonal violence has replaced RTA as the major cause of maxillofacial injuries [17],[18],[19],[20] The reason for this is attributable to the poor state of most Nigerian roads, traffic rules are disobeyed and road signs are non-existent. They are often neglected where they exist and most drivers/riders are not properly licensed. [7],[8],[17]

The prominence of the zygomatic complex as well as its multiple articulations with other bones of the facial skeleton renders it exceptionally vulnerable to fracture when injuries affect the maxillofacial region. This was our finding from the present study in which zygomatic complex fracture accounted for 46% of all the midface fractures, making it the commonest occurring midface fracture as in some other earlier reports. [6],[21],[22]

Moreover, it has also been documented by Lee et al. [23] in a study on patterns of facial laceration from blunt injury that as the zygoma would fracture more readily than the frontal bone, the soft-tissue overlying the zygoma would therefore suffer a smaller magnitude of force resulting in contusions rather than open wounds. This could possibly explain the results obtained from the present study in which the soft-tissue overlying the zygoma was more affected by contusions and abrasions instead of lacerations [Table 1]. Upper lip on the other hand was the most common site for open wounds or lacerations as has been previously documented. [24],[25] This is due to the fact that the upper incisors act as sharp objects in cases of injuries to the face, sometimes giving a through and through laceration of the upper lip.

Maxillofacial injuries in general may occur in isolation or can be associated with other injuries [25] and the same is the case for midfacial injuries. Fasola et al. [6] reported 79.6% of associated injuries in their study population and the authors argued that such a high figure was expected because of RTA being the major etiological factor. Though there is ambiguity about the definition of injuries associated with maxillofacial fractures, the rate of injuries associated with maxillofacial trauma is thought to be quite high, [8],[26],[27] the present study also recorded a rate as high as 83.2% of associated injuries. These associated injuries are reportedly more common when maxillofacial fractures occur from road crashes and high velocity gunshot injuries resulting in multiple organs and systems involvement. [6],[8] In fact, Haug et al. [26] was able to show from their series that motorcycle accidents were associated with the most severe head injury. However, this present study concentrated on concomitant injuries associated with midface injuries.

Neurological injuries were the commonest occurring concomitant injuries in this study accounting for 47.2% followed by ocular injuries with 24.3%, [Table 3]. The proximity of the midface to the eyes and the content of the cranium could as well have accounted for this. Hogg et al. [28] also reported head injuries to have accounted for 87% of the associated injuries in their study in Ontorio, Canada, whereas Obuekwe and Etetafia [27] reported 55.8% of head injuries in Benin City, Nigeria. This wide range is probably due to different selection criteria and methods of detecting brain injury. Recognizing concomitant injuries in patients with facial fracture is important for rapid assessment and further management of these patients.

These results support the use of head computed tomography scan and cervical spine radiographs in most general trauma work-ups, but specifically validates their use in patients with suspected facial fracture. [3]

Despite the obvious advantages of open reduction and rigid internal fixation of facial fractures, it has not become popular in most developing countries (including Nigeria) mainly because of the cost. [8] Only four patients representing 5.6% had open reduction and internal fixation with trans-osseous wires while the rest had closed reductions [Table 4]. Nevertheless, previous Nigerian reports have attested to the satisfactory results obtained using simple methods of closed reduction and mandibulo-maxillary fixation. [4],[6]
Table 4: Treatment modalities for midfacial injuries

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  Conclusion Top


Our study found that cerebral and orbital injuries are often associated with midfacial fractures. Knowledge of injuries associated with maxillofacial fractures and coordination of trauma teams, is vital for the early stabilization and treatment of these patients. Irrespective of the severity of injury, patients who sustained maxillofacial injury were more likely to be discharged earlier than those with concomitant injuries. The presence of moderate to severe head injury, chest injury and orthopedic injury significantly prolong hospital stay. The usage of protective elements by road users especially motorcycle riders and their passengers should be enforced to reduce the rate of head injury and indeed other associated injuries among trauma patients in general.

 
  References Top

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6.Fasola AO, Obiechina AE, Arotiba JT. An audit of midfacial fractures in Ibadan, Nigeria. Afr J Med Med Sci 2001;30:183-6.  Back to cited text no. 6
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7.Fasola AO, Nyako EA, Obiechina AE, Arotiba JT. Trends in the characteristics of maxillofacial fractures in Nigeria. J Oral Maxillofac Surg 2003;61:1140-3.  Back to cited text no. 7
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17.Adeyemo WL, Ladeinde AL, Ogunlewe MO, James O. Trends and characteristics of oral and maxillofacial injuries in Nigeria: A review of the literature. Head Face Med 2005;1:7.  Back to cited text no. 17
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18.Gassner R, Tuli T, Hächl O, Rudisch A, Ulmer H. Cranio-maxillofacial trauma: A 10 year review of 9,543 cases with 21,067 injuries. J Craniomaxillofac Surg 2003;31:51-61.  Back to cited text no. 18
    
19.Bakardjiev A, Pechalova P. Maxillofacial fractures in Southern Bulgaria-A retrospective study of 1706 cases. J Craniomaxillofac Surg 2007;35:147-50.  Back to cited text no. 19
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20.Yoffe T, Shohat I, Shoshani Y, Taicher S. Etiology of maxillofacial trauma - A 10-year survey at the Chaim Sheba Medical Center, Tel-Hashomer. Harefuah 2008;147:192-6, 280.  Back to cited text no. 20
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21.Ugboko V, Udoye C, Ndukwe K, Amole A, Aregbesola S. Zygomatic complex fractures in a suburban Nigerian population. Dent Traumatol 2005;21:70-5.  Back to cited text no. 21
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22.Dibaie A, Raissain S, Ghafarzadeh S. Evaluation of maxillofacial traumatic injuries of Forensic Medical Centre of Ahwaz, Iran, in 2005. Pak J Med Sci 2009;25:79-82.  Back to cited text no. 22
    
23.Lee RH, Gamble WB, Mayer MH, Manson PN. Patterns of facial laceration from blunt trauma. Plast Reconstr Surg 1997;99:1544-54.  Back to cited text no. 23
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24.Ong TK, Dudley M. Craniofacial trauma presenting at an adult accident and emergency department with an emphasis on soft tissue injuries. Injury 1999;30:357-63.  Back to cited text no. 24
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26.Haug RH, Savage JD, Likavec MJ, Conforti PJ. A review of 100 closed head injuries associated with facial fractures. J Oral Maxillofac Surg 1992;50:218-22.  Back to cited text no. 26
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27.Obuekwe ON, Etetafia M. Associated injuries in patients with maxillofacial trauma. Analysis of 312 consecutive cases due to road traffic accident. J Med Biomed Res 2004;3:30-6.  Back to cited text no. 27
    
28.Hogg NJ, Stewart TC, Armstrong JE, Girotti MJ. Epidemiology of maxillofacial injuries at trauma hospitals in Ontario, Canada, between 1992 and 1997. J Trauma 2000;49:425-32.  Back to cited text no. 28
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    Figures

  [Figure 1], [Figure 2]
 
 
    Tables

  [Table 1], [Table 2], [Table 3], [Table 4]



 

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