universal-joint knuckle retainer

例句：

1. 1. The orthopedic surgeon used a universal joint knuckle retainer to stabilize the fractured bone.
   骨科医生使用一个通用关节指套来稳定骨折的骨头。
2. 2. After the surgery, the patient was fitted with a universal joint knuckle retainer to prevent any movement in thejoint.
   手术后，患者被安装了一个通用关节指套，以防止关节的任何活动。
3. 3. The universal joint knuckle retainer proved to be an effective solution for managing pain and inflammation in the joint.
   通用关节指套证明是一种有效的解决方案，用于管理关节中的疼痛和炎症。