Incidence and pattern of mandible fractures in AAU affiliated hospitals (Yekatit 12 Hosptial Medical College and St.Peter’s specialized Hospital) Addis Ababa, Ethiopia.
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Date
2020-08
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Addis Abeba University
Abstract
Objectives: The objective of this study was to assess the incidence and pattern of mandible
fractures in AAU affiliated hospitals in Addis Ababa, Ethiopia over a retrospective period of 3
years from January 2017 to December 2019 G C.
Methodology: Retrospective review of pat ient’s records was conducted among those patients
who visited AAU affiliated hospitals having mandibular fractures. The study was conducted
from November, 2019 to August, 2020. The patients chart with incomplete information and those
which are absent from shelf were excluded from the study. The data was entered, cleaned and
analyzed using Epi info data version 7.0 Software. Descriptive analysis was computed as
frequency of fractures, distribution of age, gender, etiology, diagnosis, and anatomical sites of
mandibular fractures.
Results: A total of 247 patients who were retrospectively evaluated at Yekatit 12 HMC and
St.Peter’s specialized hospital between January 2017 and December 2019 sustained 343
mandibular fractures (mean of 1.4, range 1-3). The incidence of mandibular fracture was higher
in male patients (83%) than in females (17%) (Male: Female ratio 5:1), and the peak incidence
was during the third decade for both genders. The most common site of fracture was the body
(26.53%), followed by the angle (23.9%), and parasymphysis (19.82%). Overall, interpersonal
violence (46.15%) was the most common cause followed by RTA (27.53%). In male patients, the
most common cause was interpersonal violence (50%); in females it was a RTA (34.14%). The
anatomical sites of fracture reflected their cause. A total of (n=76, 30.76%) patients sustained
other non-maxillofacial injuries of which head injury (n=58, 23.48%) is the most common.
Conclusions: The most common cause of mandibular fracture was interpersonal violence.
Mandibular fractures were more common in males than females with most patients aged 21-30
years. The most common fracture site was body of the mandible. The predominant treatment
modality was open reduction and internal fixation (ORIF).
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Keywords
Mandibular fractures, Body, Etiology, Interpersonal violence (IPV), ORIF.