Basic concepts in metal work failure after metastatic spine tumour surgery

[摘要] PurposeThe development of spinal implants marks a watershed in the evolution of metastatic spine tumour surgery (MSTS), whichhas evolved from standalone decompressive laminectomy to instrumented stabilization and decompression with reconstruction when necessary. Fusion may not be feasible after MSTS due to poor quality of graft host bed along with adjunct chemotherapy and/or radiotherapy postoperatively. With an increase in the survival of patients with spinal tumours, there is a probability of an increase in the rate of implant failure. This review aims to help establish a clear understanding of implants/constructs used in MSTS and to highlight the fundamental biomechanics of implant/construct failures.

[学科分类] 骨科学

[关键词] Metastatic spine tumour surgery;Symptomatic implant failure;Asymptomatic implant failure;Early failure;Late failure