Methods The arch bridge type elastic pedicle fixation system (ABPF) had undergone a biomechanical test and contrast to control group (RF, Steffee, Dick).

• 方法 对拱桥式弹性椎弓根固定器(ABPF)进行生物力学测试,并与对照组(RF、Steffee、Dick)对比分析。