Lee Byung Chan, Park Chan, Kim Hyoung Ook, Lee Ho Kyun
Department of Radiology, Chonnam National University Hospital, Gwangju, Republic of Korea.
Department of Radiology, Chonnam National University Medical School, Gwangju, Republic of Korea.
J Int Med Res. 2025 Jan;53(1):3000605241308488. doi: 10.1177/03000605241308488.
The popliteal artery segment is particularly challenging for endovascular treatment. Stents used for treating popliteal artery lesions are usually associated with an increased risk of stent fracture and re-occlusion. The Supera stent is designed to withstand mechanical stress, with a low risk of fracture. A man in his mid-70s with left popliteal artery occlusion was treated with a Supera stent implantation. After 5 months, he revisited our hospital complaining of left leg pain. Preprocedural computed tomography angiography showed popliteal artery occlusion associated with a Supera stent fracture. A new Supera stent was implanted at the previous stent fracture site. However, 3 months after the second procedure, computed tomography angiography showed popliteal artery re-occlusion associated with a repeated fracture of the Supera stent. A femoral-popliteal bypass was performed. At the 6-month follow-up, computed tomography angiography showed a patent graft. Our findings indicated that recurrent fractures occurred after additional Supera stenting at the previous Supera stent fracture site. Careful observation is necessary after deploying a new Supera stent for treating a Supera stent fracture because of the possibility of a repeated fracture.
腘动脉段的血管内治疗极具挑战性。用于治疗腘动脉病变的支架通常与支架骨折和再闭塞风险增加相关。Supera支架旨在承受机械应力，骨折风险较低。一名70多岁的男性因左腘动脉闭塞接受了Supera支架植入治疗。5个月后，他因左腿疼痛再次就诊。术前计算机断层扫描血管造影显示腘动脉闭塞并伴有Supera支架骨折。在先前的支架骨折部位植入了一枚新的Supera支架。然而，第二次手术后3个月，计算机断层扫描血管造影显示腘动脉再次闭塞并伴有Supera支架再次骨折。于是进行了股腘动脉搭桥术。在6个月的随访中，计算机断层扫描血管造影显示移植血管通畅。我们的研究结果表明，在先前的Supera支架骨折部位再次植入Supera支架后发生了复发性骨折。由于存在再次骨折的可能性，在为治疗Supera支架骨折而部署新的Supera支架后，有必要进行仔细观察。
