Is the Mandible Injury Severity Score a Valid Measure of Mandibular Injury Severity?

Nishimoto, Rodney N.; Dodson, Thomas B.; Lang, M

doi:10.1016/j.joms.2018.11.027

Cited by 10 publications

(5 citation statements)

References 17 publications

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“…They also included parameters such as fracture type, location, soft tissue involvement, infection, and displacement of the fracture. A higher MISS determines both the severity of the fracture in terms of fixation and the probability of complications [24,25].…”

Section: Resultsmentioning

confidence: 99%

Choice of Screws for Fixation of Mandibular Condyle Fractures Guided by Anthropometric Data

Bielecki-Kowalski

Kozakiewicz

2021

Applied Sciences

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Open reduction and internal fixation (ORIF) is becoming increasingly common in treatment of the condylar process, including mandible head fractures. This approach significantly improves the results in terms of anatomical reduction of bone fragments, and shortens the treatment time, allowing for early functional recovery. The success of ORIF is largely determined by the stability of the osteosynthesis. The stabilization effect depends on the screw type and length of the plate used, in addition to the diameter and length of the screws used. The aim of this study was to determine the largest possible screw length that can be used in ORIF of the mandibular condyle considering the variable bone thickness. A total of 500 condyles were examined using computer tomography (CT)-based 3D models in Caucasians. For all models, three measurements were made in the frontal projection in places typical for the stabilization of osteosynthesis plates in the fractures of the condylar process: the base, the top, and the sigmoid notch. In addition, one measurement of the mandible head was made in the place of the greatest width. The results showed that 8 mm screws should be used in the region of the condylar base as the longest anatomically justified screw, whereas in the area of a sigmoid notch only 1.5–2 mm screws should be used. Measurements in the area of the neck top revealed statistically significant differences in the measurements between the sex of patients, with average differences below 1 mm (p < 0.05). In this area, the maximal length of the screw was found to be 10 mm. In mandibular head fractures, the use of long screws is extremely important due to the desired effect of fragment compression. Statistically significant differences were found in the measurement results between women and men. The maximal screw length for bicortical fixation was found to be 22 mm in men and 20 mm in women. In post-traumatic patients, the ability to obtain a clear measurement is often limited by a deformed anatomy. Taking into account the fact that the fracture stability is influenced by both the plate length and the length of the fixation screws, an assessment of the standard measurement values in a cohort group will improve the quality of the surgical fixations of the fractures.

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Section: Resultsmentioning

confidence: 99%

Choice of Screws for Fixation of Mandibular Condyle Fractures Guided by Anthropometric Data

Bielecki-Kowalski

Kozakiewicz

2021

Applied Sciences

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“…MFISS was also validated as a model to be able to correlate with treatment costs and hospital stay, but the results were bound to be noncomparable and nonreproducible in different socioeconomic/healthcare systems. [ 13 14 ] Nishimoto et al ., 2019,[ 17 ] and Shetty et al ., 2007,[ 18 ] found a positive correlation between MISS value, overall ST, and length of stay while quantifying mandibular trauma severity.…”

Section: Discussionmentioning

confidence: 99%

Comprehensive facial injury (CFI) score as a predictor of surgical time, length of hospital stay, and head injury? Our experience at level I trauma center

Vishwakarma

Rawat

Shukla

et al. 2022

Natl J Maxillofac Surg

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Purpose: The present study aimed to evaluate the statistical significance of comprehensive facial injury (CFI) score concerning total surgical time (ST), length of hospital stay (LHS), and head injury in maxillofacial trauma patients. Methods: This retrospective observational study included 288 patients having maxillofacial injuries with or without associated head injury. CFI score was calculated for each of them. One-way ANOVA and Kruskal–Wallis H-test were used to compare ST (minutes), LHS (days), and Glasgow Coma Scale (GCS) score among the CFI score clusters. Head injury among the CFI score clusters was compared using Fisher's exact test. The level of statistical significance was set at P < 0.05. Results: Of total 288 cases (males: 83.68%, females: 16.31%, mean age: 30 ± 15.92 years), road traffic accidents accounted for 76.0% of admissions. A definitive approach (open reduction and internal fixation) was used in 26.38% of cases. Statistically significant association of CFI score was obtained with ST and LHS in high-dependency unit ( P < 0.001). Posttraumatic head injury was seen in 21.25% of cases. A significant association of CFI score with GCS score ( P = 0.032) and with head injury ( P = 0.019) was found. Conclusion: CFI score is a comprehensive yet simple scale to assess ST and LHS. A strong correlation established between CFI score and these variables further validate its reliability as a perfect tool for communication of the maxillofacial morbidity and in making a treatment protocol, although its predictive ability for associated head injuries needs to be studied further.

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“…For the patient with multiple fractures, MISS is calculated based on the most severe fracture and 4 points are added for each additional fracture. 20,21 Estimation of displacement between fragments is obtained from panoramic radiography or CT. Fractures without step-off seen in panoramic radiograph have displacement lower than 2 mm. All fractures extending through the bearing segment are considered open fractures.…”

Section: Methodsmentioning

confidence: 99%

“…This system provides convenience in assessing the severity of mandibular trauma and serves as a predictive and prognostic mean to determine the treatment as well as provides information to the patient and family. 10,11,13 With the higher mobility and increasing number of motor vehicle accidents in Indonesia as well as the popularity of half-face helmets are the background of this research on mandibular trauma severity based on MISS.The purpose of this study was to compare the severity of mandibular trauma in motorcyclists using half face helmets and without using a helmet based on the Mandible Injury Severity Score (MISS).…”

Section: Introductionmentioning

confidence: 99%

<strong>Mandibular trauma severity differences on motorcycle riders using half-face helmet and without helmet based on mandible injury severity score</strong>

Syakuran

Hardianto

Nurwiadh³

2022

Padjadjaran J Dent

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Introduction: The popular half-face helmet places the mandible at high risk of fracture during a motorcycle accident. The anatomical shape and position of the mandible make it more frequent to fracture. The purpose of this study was to compare the severity of mandibular trauma in motorcyclists using half face helmets and without using a helmet based on the Mandible Injury Severity Score (MISS). Methods: This research was a prospective cross-sectional study on 60 research subjects at the Emergency Unit of Hasan Sadikin Hospital, Bandung, between July 2019 - February 2020. The data were analyzed with the Mann-Whitney test to see the severity of mandibular trauma using a half face helmet and without a helmet based on MISS (Mandible Injury Severity Score). Results: Of 60 subjects of motorcycle accidents, 58.3% were <25 years old, 38 (63.3%) used half face helmets and 22 (36.7%) non-helmets, 83.3% of the patients were drivers, and 11.7% were passengers. Most fracture sites are parasymphysis, corpus, condylus, symphysis, and subcondylar. 48.3% of subjects had malocclusion, 56.5 with mild displacement, and 43,3% with moderate removal. The average MISS score for half face helmet users was 5.71 and compared to 7.45 for non-helmets. Based on the Mann Whitney test results, the MISS value was not significantly different. Conclusion: Riders who wore half face helmets and those who didn’t wear helmets have the same risk of mandibular trauma based on the MISS. Motorcycle users should use a full face helmet to prevent mandibular fractures during traffic accidents.Keywords: MISS, trauma of mandible, half face helmet, traffic accidents.

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Is the Mandible Injury Severity Score a Valid Measure of Mandibular Injury Severity?

Cited by 10 publications

References 17 publications

Choice of Screws for Fixation of Mandibular Condyle Fractures Guided by Anthropometric Data

Choice of Screws for Fixation of Mandibular Condyle Fractures Guided by Anthropometric Data

Comprehensive facial injury (CFI) score as a predictor of surgical time, length of hospital stay, and head injury? Our experience at level I trauma center

<strong>Mandibular trauma severity differences on motorcycle riders using half-face helmet and without helmet based on mandible injury severity score</strong>

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