집토끼 내측 슬굴곡근 결절의 초음파와 조직학적 소견: 근박통증후군에 대한 동물실험

Abstract

Objective To establish the objective method of diagnosing the myofascial pain syndrome through diagnostic ultrasound and pathology.

Method Hamstring muscles of 7 female house rabbits, weighing 2.5∼3.0 Kg, were studied. The existence of nodule was confirmed by palpation and through diagnostic ultrasound. A horizontal length, vertical length, thickness, and an area of hyperechoic region were measured. Hyperechoic regions were biopsied and stained with hematoxylin-eosin.

Results All examined rabbits had muscular nodules in the medial hamstring. Characteristic increase of echogenecity was observed in the medial hamstring muscles. Some uneven hyperechoic areas were seen in the lateral hamstring muscles. Fatty degeneration and giant round cells were observed in the medial hamstring where the echogenecity was increased. The giant round cells were observed only in the lateral hamstring.

Conclusion Increased echogenecity of the medial hamstring muscle is probably contributed by muscles cells with fatty degeneration and giant round cells, and some portions of hyperechogenecity of lateral hamstring requires further study.