refractory cast

例句：

1. 1.The patient was given a refractory cast to stabilize the fracture.
   患者被给予一个难治性骨折固定术来稳定骨折。
2. 2. The surgeon performed an irreversible fracture fixation to repair the bone.
   外科医生进行了一次不可逆的骨折固定术以修复骨骼。
3. 3. The patient's condition required a refractory cast for several weeks until the infection healed.
   患者的病情需要用难治性骨折固定术治疗几周，直到感染痊愈。