FDA召回多款髋膝关节植入物：UHMWPE原料老化超五年或致氧化磨损
ACETABULAR CUP UHMWPE 61-3258 ALL POLY CONSTRAINED INSERT 44MM 69-2244 ALL POLY CONSTRAINED INSERT 46MM 69-2246 ALL POLY CONSTRAINED INSERT 48MM 69-2248 ALL POLY CONSTRAINED INSERT 50MM 69-2850 ALL POLY CONSTRAINED INSERT 52MM 69-2852 CONSTRAINED ACETABULAR INSERTS 22MM 50MM 2099-2250 CONSTRAINED ACETABULAR INSERTS 22MM 52MM 2099-2252 CONSTRAINED ACETABULAR INSERTS 22MM 56MM 2099-2256 CONSTRAINED ACETABULAR INSERTS 28MM 61MM 2099-2861 EIUS UNI TIB SMALL RM/LL 9MM 6636-0-419 PCA CONST LINER 32MM NEUTRAL C - SHELL 6299-N-332 SYS 12 CONST LINER 32ID 10 DEG P6 +4MM 6302-H-632 TRIDENT 0 DEG CONSTRAINED INSERT 22D 690-00-22D TRIDENT 0 DEG CONSTRAINED INSERT 22E 690-00-22E TRIDENT 0 DEG CONSTRAINED INSERT 28F 690-00-28F TRIDENT 0 DEG CONSTRAINED INSERT 28G 690-00-28G TRIDENT 0 DEG CONSTRAINED INSERT 32I 690-00-32I TRIDENT 0¿ POLY INSERT 28mm ID 620-00-28D TRIDENT CONSTR ACET INSERT 690-10-28K TRIDENT CONSTRAINED INSERT 690-10-22E 690-10-22F 690-10-28G 690-10-28H 690-10-28I Orthopaedic implant
openFDA器械召回信息显示，多款髋膝关节植入物因使用老化超过五年的超高分子量聚乙烯（UHMWPE）原料被召回，涉及Acetabular Cup、Trident Constrained Insert等型号。产品存在氧化水平升高的可能，可能导致磨损加剧，进而产生过量磨损碎屑、材料碎片、器械断裂或脱位，潜在危害包括翻修手术、疼痛和炎症。
召回披露了超期UHMWPE原料导致氧化的具体风险链条，可了解骨科植入物原材料老化与翻修手术之间的关联。
来源：openFDA 器械召回 · api.fda.gov