英语语法分析

Symptomatic disease recurred in two of the thirteen hips treated with arthrotomy alone.

单纯进行关节外切开治疗的13例患者中有2例疾病复发。

Symptomatic disease recurred in two of the thirteen hips treated with arthrotomy alone and in none of the hips that had undergone dislocation.

单纯进行关节外切开治疗的13例患者中有2例疾病复发，但没有一例出现关节脱位。