Lachance Andrew D, Stogsdill Patricia B, McGrory Brian J
Department of Orthopaedic Surgery, Guthrie Clinic, Sayre, PA, USA.
Maine Medical Center, Portland, ME, USA.
Arthroplast Today. 2022 Nov 5;18:173-180. doi: 10.1016/j.artd.2022.10.005. eCollection 2022 Dec.
Mechanically assisted crevice corrosion (MACC) at the trunnion-bore junction of a total hip arthroplasty may cause adverse local tissue reaction (ALTR) with inflammatory reaction and tissue necrosis. Complications, including acute infection, continued pain, and instability, are therefore common after a revision surgery for MACC. We now present 2 cases of late hematogenous bacterial infection years after revision for MACC and ALTR, a previously unreported outcome in this population. We hypothesize that MACC-induced tissue necrosis does not heal over time, and some patients with metal-on-polyethylene total hip arthroplasty treated for ALTR are at long-term risk of hematogenous bacterial infection.
全髋关节置换术耳轴-孔交界处的机械辅助缝隙腐蚀(MACC)可能会导致伴有炎症反应和组织坏死的不良局部组织反应(ALTR)。因此,对于MACC进行翻修手术后,包括急性感染、持续疼痛和不稳定在内的并发症很常见。我们现报告2例在因MACC和ALTR进行翻修多年后发生晚期血源性细菌感染的病例,这是该人群中此前未报告过的结果。我们推测,MACC引起的组织坏死不会随时间愈合,一些因ALTR接受治疗的金属对聚乙烯全髋关节置换术患者存在血源性细菌感染的长期风险。