Bilateral knee dislocation with associated bilateral popliteal arterial injury / Luxação bilateral dos joelhos com lesão bilateral da artéria poplítea

ABSTRACT Tibiofemoral unilateral knee dislocations are uncommon, making bilateral dislocations even rarer injuries. Knee dislocation is considered one of the most serious injuries that can affect this joint. Associated complications such as popliteal artery injury are responsible for the important morbidity in these patients. The authors report the case of a 52-year-old man with a traumatic bilateral knee dislocation with associated bilateral popliteal arterial injury. His clinical presentation along with radiographic and angiographic findings are described. Surgical and non-surgical treatment and functional outcomes are also reported.

RESUMO As luxações unilaterais tibiofemurais do joelho são incomuns, o que torna as luxações bilaterais ainda mais raras. A luxação do joelho é considerada um dos ferimentos mais graves nessa articulação. As complicações associadas, tais como a lesão da artéria poplítea, são responsáveis pela importante morbidade observada nesses pacientes. Os autores relatam o caso de um homem de 52 anos com luxação traumática bilateral do joelho associada a lesão bilateral da artéria políptea. O estudo descreve a apresentação clínica e os achados radiográficos e angiográficos. Os tratamentos cirúrgico e não cirúrgico e os resultados funcionais também são relatados.

Endovascular Repair of Blunt Popliteal Arterial Injuries

OBJECTIVE: To evaluate the feasibility and effectiveness of endovascular repair for blunt popliteal arterial injuries. MATERIALS AND METHODS: A retrospective analysis of seven patients with clinical suspicion of popliteal arterial injuries that were confirmed by arteriography was performed from September 2009 to July 2014. Clinical data included demographics, mechanism of injury, type of injury, location of injury, concomitant injuries, time of endovascular procedures, time interval from trauma to blood flow restoration, instrument utilized, and follow-up. All patients were male (mean age of 35.9 ± 10.3 years). The type of lesion involved intimal injury (n = 1), partial transection (n = 2), complete transection (n = 2), arteriovenous fistula (n = 1), and pseudoaneurysm (n = 1). All patients underwent endovascular repair of blunt popliteal arterial injuries. RESULTS: Technical success rate was 100%. Intimal injury was treated with a bare-metal stent. Pseudoaneurysm and popliteal artery transections were treated with bare-metal stents. Arteriovenous fistula was treated with bare-metal stent and coils. No perioperative death and procedure-related complication occurred. The average follow-up was 20.9 ± 2.3 months (range 18-24 months). One patient underwent intra-arterial thrombolysis due to stent thrombosis at 18 months after the procedure. All limbs were salvaged. Stent migration, deformation, or fracture was not found during the follow-up. CONCLUSION: Endovascular repair seems to be a viable approach for patients with blunt popliteal arterial injuries, especially on an emergency basis. Endovascular repair may be effective in the short-term. Further studies are required to evaluate the long-term efficacy of endovascular repair.

Arteriomegaly with Multiple Aneurysms / 日本心臓血管外科学会雑誌

We report a rare case of surgical treatment of arteriomegaly with multiple aneurysms. The patient was a 76-year-old man who was suffering from swelling, pain, and numbness of his left lower extremity. Three-dimensional computed tomography (3D-CT) revealed arteriomegaly from the left external iliac artery to the popliteal artery with ruptured superior gluteal arterial aneurysm and superficial femoral aneurysm, and with unruptured external iliac aneurysm and popliteal aneurysm. We performed left external iliac artery—posterior tibial artery bypass, exclusion of superior gluteal aneurysm, and resection of three other aneurysms. Because of arteriomegaly, back flow from the dilated arterial branches was considerable, and the femoral artery was expanded with tension despite of distal and proxymal clamp. We therefore divided the femoral artery to avoid development of a aneurysm. The postoperative course was uneventful and 3D-CT showed good bypass flow and thrombotic occlusion of the residual femoral artery.

Endovascular treatment of long femoro-popliteal arterial occlusions of lower extremities / 国际外科学杂志

Objective To explore the feasibility and outcome of percutaneous transluminal angioplasty (PTA) as a primary treatment modality long femoro-popliteal arterial occlusions in critical limb ischemia.Methods Ten cases with 10 lesions in their femoro-popliteal arterial occlusions were treated with PTA, and the symptoms, intraoperative and postoperative DSA characteristics were retrospectively analyzed. Short-term follow-up were obtained in 8 cases. Results The technical success rate related to procedure was 90% and 12 stents were placed after PTA in femoro-popliteal arterial occlusions. One case was suffered fromamputa-lion due to development of compartment syndrome. The primary patency rate and recurrence rate of 12 months after procedure were 70% and 30% respectively. Conclusion Patients with critical limb ischemia could be beneficial from PTA in long femoro-popliteal arterial occlusions.

Popliteal Artery Occlusion after Total Knee Arthroplasty: A Case Report / 대한정형외과학회잡지

Popliteal arterial occlusion after total knee arthroplasty is a rare complication, and for now various treatment methods have been tried. The authors report a case of acute popliteal artery occlusion after total knee arthroplasty that was treated by thrombectomy.

Posterior Approach to the Posterior Tibial Artery in Popliteal Arterial Aneurysm Repair: A case report

Surgical approach to the popliteal arterial aneurysm involves medial and posterior approaches. Posterior approach does not need division of hamstring muscle tendons and gastrocnemius head, which is necessary in medial approach for exposure of the entire popliteal artery (PA). Further, it has the advantage of harvesting the lesser saphenous vein without the need of additional incision. Posterior approach to vessels below PA was reported to be effective for bypass from PA to crural vessels in patients with limb ischemia. We report a case of popliteal aneurysm approached posteriorly. A 49-year-old male patient presented with a left popliteal mass and calf claudication for 2 years. Preoperative ultrasonography, MRI and angiography showed a thrombosed popliteal aneurysm. With the patient in left lateral position, the popliteal arterial aneurysm was exposed posteriorly, the lesser saphenous vein was harvested, the crural vessels were exposed by division of gastrocnemius and soleus muscles, and exclusion of the aneurysm and bypass from proximal PA to posterior tibial artery was done. Postoperatively, the patient experienced mild leg edema which soon disappeared, and he was discharged on the 23rd postoperative day. We found the posterior approach to the popliteal and proximal tibial artery to be simple and effective.