Methods Review and analyse the injuring mechanism of 27 fingers in 23 cases, and simulate the injuring processes using surgical electric drill, observe the injuring characteristics during the operation, and adopt corresponding measures to repair them in combination with those characteristics. 方法回顾性分析23例27指的受伤机制,并用手术电钻模拟受伤过程;术中观察其损伤的特点,并结合这些特点采取相应的措施进行修复。