楔状骨

例句：

1. 1. The patient's leg was in a cast because of a fractured tibia.
   患者因胫骨骨折而腿部石膏固定。
2. 2. The surgeon performed an arthroplasty to replace the damaged joint with a prosthetic device.
   外科医生进行了关节置换手术，用假体替换了受损的关节。
3. 3. The doctor advised the patient to avoid heavy lifting until the bone healed.
   医生建议病人在骨头愈合之前避免举重。