Conclusion The tissue reaction induced by PLGA stent is retrievable.PLGA is regarded highly compatible and can serve as an ideal material for biodegradable ureteral stent.

• 结论：PLGA材料支架植入犬输尿管后发生的输尿管炎症反应是可恢复的，PLGA材料具有很好的组织相容性，是加工可生物降解输尿管支架的理想材料。