Frequency of infra-orbital nerve injury after a Zygomaticomaxillary complex fracture and its functional recovery after open reduction and internal fixation

Maria Noor; Yaser Ishaq; Malik Adeel Anwar

doi:10.18203/2349-2902.isj20170214

Authors

Maria Noor Department of Oral Medicine, FMH College of Medicine and Dentistry, Lahore, Pakistan
Yaser Ishaq Department of Oral and Maxillofacial Surgery, Mayo Hospital, Lahore, Pakistan
Malik Adeel Anwar Department of Oral Pathology, FMH College of Medicine and Dentistry, Lahore, Pakistan

DOI:

https://doi.org/10.18203/2349-2902.isj20170214

Keywords:

Infraorbital nerve, Open Reduction, Road Traffic Accident, Zygomaticomaxillary complex fractures

Abstract

Background: Maxillofacial injuries are on the rise and the etiology of maxillofacial injuries varies from one country to another because of social, cultural and environmental factors. Road traffic accidents (RTAs) are still the most common cause of maxillofacial injuries. Nerve injury following fracture may involve traction, pressure, ischemia, inflammation and physical damage; therefore fractures of Zygomaticomaxillary complex (ZMC) are characterized by sensory neuropathy in the area of innervation of infra-orbital nerve both as presenting symptom and as a postop complication. The objectives of the study were to investigate the frequency of infra-orbital nerve paresthesia following ZMC fractures and determine the frequency of functional nerve recovery in patients with paresthesia treated with open reduction and internal fixation.

Methods: Patients (n = 75) qualifying our inclusion criteria were selected, examined, reduced by surgery and followed up.

Results: A total of 75 patients were included in the study with male: female ratio of 5:3. Mean age was 37.43±3.78 years, with majority of patients (72 %) presenting with RTAs. Infra-orbital nerve paraesthesia was found to be positive in 70.67% (n = 53) patients with 62.26% (n = 33) patients with functional nerve recovery after 3 months.

Conclusions: Prognosis of infra-orbital nerve recovery after a Zygomaticomaxillary complex fracture can be enhanced by open reduction and internal fixation.

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