Raustia A M, Oikarinen K S, Pyhtinen J
Department of Prosthodontics, University of Oulu, Finland.
Rofo. 1990 Nov;153(5):501-4. doi: 10.1055/s-2008-1033427.
The aim was to study changes in the main masticatory muscles after mandibular condyle fracture as seen by CT, comparing the densities and sizes of the masseter, medial pterygoid and lateral pterygoid muscles on the fractured side with those on the non-fractured side. More or less permanent muscular changes are detectable several years after the accident, especially in the lateral pterygoid muscle, which is attached to the condylar head. This muscle was statistically significantly smaller (p less than 0.001) on the fractured side. Examination of the masticatory muscles immediately after the fracture and at intervals afterwards could reveal more about the pathogenesis of the changes in these muscles.
目的是通过CT研究下颌髁突骨折后主要咀嚼肌的变化，比较骨折侧与非骨折侧咬肌、翼内肌和翼外肌的密度及大小。事故发生数年之后可检测到或多或少的永久性肌肉变化，尤其是附着于髁突头部的翼外肌。在骨折侧，该肌肉在统计学上显著较小（p<0.001）。骨折后即刻及随后定期检查咀嚼肌，可能会更深入了解这些肌肉变化的发病机制。
