Correlation between the pattern of zygomaticomaxillary complex fracture and infraorbital nerve injury: a clinical study in 70 patients

doi:10.19438/j.cjoms.2017.01.012

Abstract

Abstract: PURPOSE: To investigate the association between infraorbital nerve sensory disturbances and zygomaticomaxillary complex (ZMC) fracture patterns. METHODS: Seventy patients with isolated unilateral ZMC fractures were examined on both uninjured and affected sides by using pain threshold test and two-points discrimination test. The fractures were classified according to classic Zingg's classification. Injury of the infraorbital nerve was expressed as asymmetry index (AI). SPSS19.0 software package was used for statistical analysis. RESULTS: The results suggested that neurosensory disturbance was present in all 70 patients with ZMC fracture. In the test of pain threshold, infraorbital nerve injury severity was different among different fracture patterns (P<0.05). Two-points discrimination test showed that infraorbital nerve injury was more severe in type B and C than in type A (P<0.05), but the difference between B and C was not significant. CONCLUSIONS: Infraorbital nerve injury is a common complication of ZMC fracture, type B fracture has the highest grade of nerve damage, while type A fracture has the lowest grade of nerve damage.

Key words: Zygomaticomaxillary complex fractures, Zingg's classification, Infraorbital nerve, Pain threshold, Two-points discrimination

CLC Number:

R782.4

SU Jia-nan, XU Xiao-feng, XU-Bing. Correlation between the pattern of zygomaticomaxillary complex fracture and infraorbital nerve injury: a clinical study in 70 patients[J]. China Journal of Oral and Maxillofacial Surgery, 2017, 15(1): 56-58.

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