56. Although custom prosthetic bone replacements produced through a new computer-aided design process will cost more than twice as much as ordinary replacements, custom replacements should still be cost-effective. Not only will surgery and recovery time be reduced, but custom replacements should last longer, thereby reducing the need for further hospital stays.

碰到术语就无可奈何，看不懂是什么意思，哪位NN解释一下可好？

谢谢了

其实这个术语看不懂也不影响答题的。

CPBR是根据一个新的计算机辅助设计程序而设计的，尽管价格是普通的Replacement的两倍多，却仍然是经济划算。因为其不仅可减短手术时间和恢复时间，而且持续时间更长，从而减少以后再次入院的需要。