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  • Title: Suprageniculate Approach to Release of Popliteal Entrapment without Distal Bypass Despite Preoperative Runoff Thrombosis.
    Author: Ali AM, Ramos CR, Glebova NO.
    Journal: Ann Vasc Surg; 2018 Jan; 46():206.e5-206.e10. PubMed ID: 28739462.
    Abstract:
    BACKGROUND: Popliteal artery entrapment syndrome is an uncommon condition in which anatomic or functional popliteal artery compression causes arterial insufficiency. We present a case of popliteal entrapment with runoff thrombosis treated with suprageniculate release of entrapment without distal bypass. RESULTS: A 15-year old boy with Klinefelter syndrome presented with right leg claudication severely limiting his activity. He had a palpable femoral pulse, but no palpable popliteal or foot pulses on the right. Noninvasive testing showed a partially thrombosed popliteal artery with an ankle-brachial index (ABI) of 0.69. Computed tomography scan revealed type III popliteal entrapment with distal thromboses and abnormal insertion of gastrocnemius muscle. Popliteal entrapment release was performed via a medial suprageniculate approach in consideration for distal bypass. The soleus was released first; intraoperative angiography showed continued popliteal compression with forced dorsiflexion. This was followed by release of the gastrocnemius and found caudal and medial to the soleus as a tight band. Repeat angiography showed cessation of popliteal artery compression with dorsiflexion. Bypass was not performed due to improvement of distal flow seen on angiography. Postoperative recovery was unremarkable. On 1-month and 9-month follow-up, he had a normal ABI and arterial duplex, was asymptomatic, and had returned to normal activities. CONCLUSIONS: We describe suprageniculate approach to popliteal release that may be useful if a distal bypass is planned. In this case, bypass was unnecessary despite the abnormal appearance of distal runoff on preoperative imaging, as the child's perfusion improved with entrapment release alone, and arterial remodeling over time resulted in normal perfusion and arterial appearance on duplex imaging.
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