Background: Facial Injury Severity Severity Score (FISS) has been used to assess the severity of facial
injuries. However, FISS scores as a useful predictor of length of stay and changes between FISS scores
and injuries to other parts of the body have not evaluated. In this study, we want to know the relationship between FISS score as
the clinical assessment of maxillofacial trauma with the length of stay, the need for surgery, and the involvement of other
specialist elds.
Method: This research was conducted using analytical research through a retrospective approach by looking at the medical
records of patients who suffered maxillofacial trauma at H. Adam Malik General Hospital Medan from June to August 2019.
Result : From a total of 43 patients included in the study, there were 22 mandibular fractures, with mandibular angulus (29.0%),
parasymphysis (22.4%), and mandibular corpus (21.5%). Thirty subjects (69.8%) needed surgery, and xation of the fracture
and subjects without intervention were 13 (30.2%). Patients who needed surgical intervention, the average time needed for
hospitalization was 10.98 + 7.72 days (p = 0.007). The most collaboration found with neurosurgeons specialists, 39.53% of
subjects who performed the surgery. A total of 55.8% of surgeries performed by a single operator from the plastic surgery
department. Relationship between the length of stay with FISS, obtained for FISS> 3 (OR 14.37) (p = 0.01), meaning that
patients with FISS> 3 are likely to stay longer for 14 times. Subsequent results related to the need for surgery obtained
signicant results (OR = 8.26, p = 0.026). signicant (p = 0.059).
Conclusion: A FISS score signicantly affects the length of stay for a maxillofacial trauma patient. FISS score also affects the
involvement of other specialists in maxillofacial trauma patients but not statistically signicant.