英语语法分析

A 30-degree wedge osteotomy was used to create a subtrochanteric fracture gap model.

采用30度楔形截骨建立转子下有间隙骨折模型。

Methods: 36 cases of subtrochanteric fracture of femur were treated with DCS fixation.

方法：对36例股骨粗隆下骨折患者行切开复位、DCS内固定。

There were 6 cases inter trochanteric fracture and 7 cases of subtrochanteric fracture.

其中6个肢体为粗隆间骨折，7个肢体为粗隆下骨折。