The effects of zygomatic complex fracture on masseteric muscle force

Frank Dal Santo, Edward Ellis, Gaylord S. Throckmorton

Producción científica: Articlerevisión exhaustiva

70 Citas (Scopus)


The masseter muscle often has been implicated as a primary cause of postreduction displacement of the fractured zygomatic complex. However, this contention has never been proved. This study compared masseter muscle force in 10 male controls with that in 10 male patients who had sustained unilateral zygomaticomaxillary complex (ZMC) fractures. Calculation of muscle force was based on measured bite force, electromyogram, and radiographic determination of muscle vectors. It was found that the masseter muscle in patients with ZMC fractures developed significantly less force than masseter muscle in controls. Following fracture, the masseter force slowly increased, but at 4 weeks following surgery the majority of patients were still well below control levels. The results of this study cast uncertainty on the role of the masseter muscle in postreduction displacement of the fractured ZMC.

Idioma originalEnglish (US)
Páginas (desde-hasta)791-799
Número de páginas9
PublicaciónJournal of Oral and Maxillofacial Surgery
EstadoPublished - ago 1992
Publicado de forma externa

ASJC Scopus subject areas

  • Oral Surgery
  • Surgery
  • Otorhinolaryngology


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