In the treatment of open fracture in the middle and old aged patients, the unilateral external fixator mounted on hydroxyapatite coated pins is safe and effective, for it can provide stability and allow early rehabilitation.

• 羟基磷灰石涂层钉应用于外固定支架治疗中老年开放性胫骨、肱骨骨折,具有稳定性好、康复早的特点,是一种恰当的治疗骨质疏松性骨折的手术方法。