英语语法分析

The chief complaint in all patients with symptomatic pseudarthrosis was pain.

假关节形成的最主要的主诉是疼痛。

AIM To investigate the pathological changes and origin of congenital pseudarthrosis of tibia (CPT).

目的探讨先天性胫骨假关节(CPT)的发病部位及病理特点。

Congenital pseudarthrosis of the tibia (CPT) is a rare disease with its incidence as one in 250,000 newborns.

先天性胫骨假关节(CPT)是一种少见疾病，发病率约为25万分之一。