Methods Retrospective studies were made on 41 cases of lumbar degenerative spondylolisthesis (35 cases with anteriordisplacement, 6 with posterior displacement ) to explore their CT findings.
方法回顾性分析41例腰椎退变性滑脱症（前滑脱35例，后滑脱6例）的CT表现。
2
Anterior disc displacement of temporomandibular joint which occurs commonly clinically is one type of temporomandibular joint disorders (TMD).
颞颌关节盘前移位属于颞颌关节紊乱病的关节结构紊乱类型，在临床上最为常见。
3
This case has more advanced anterior disc displacement with clicking sounds in opening and closing.