ObjectiveTo compare the efficacy of three surgical approaches, including percutaneous transluminal angioplasty (PTA), PTA+bare metal stent (BMS), and Rotarex+PTA+drug coated balloon (DCB), in treating femoropopliteal artery lesions in arteriosclerosis obliterans (ASO), and to explore the prognostic factors of femoropopliteal artery lesions in ASO. MethodsA retrospective analysis was conducted on 314 patients with femoropopliteal artery lesions in ASO who were treated in the Department of Vascular and Thyroid Surgery in the First Affiliated Hospital of Xinjiang Medical University from March 2018 to March 2024. inverse probability of treatment weighting was used to balance the baseline characteristics of the three groups. The clinical examination, imaging examination, and ankle-brachial index (ABI) results of the three groups at 3 months, 12 months, and 24 months after surgery were compared. Log-rank test was used to compare the incidence of all-cause mortality (ACM) and major adverse limb events (MALEs) among the three groups, and Cox proportional hazards regression model was used to analyze the prognostic factors of femoropopliteal artery lesions in ASO. ResultsA total of 314 patients with ASO femoropopliteal artery lesions were enrolled, comprising 153 cases in the PTA group, 89 cases in the PTA+BMS group, and 72 cases in the Rotarex+PTA+DCB group. After inverse probability of treatment weighting based on propensity scores, baseline characteristics were balanced across all groups (all P>0.05). Postoperative follow-up results demonstrated the following patency rates: at 3 months, 58.4% (87/149) for the PTA group, 79.5% (66/83) for the PTA+BMS group, and 87.5% (63/72) for the Rotarex+PTA+DCB group; at 12 months, 78.0% (60/79), 68.3% (43/63), and 80.0% (44/55), respectively; and at 24 months, 98.1% (52/53), 89.7% (35/39), and 100.0% (43/43), respectively. The Rotarex+PTA+DCB group exhibited significantly superior patency rates, claudication distances, ankle-brachial index (ABI), and Rutherford classification compared to both the PTA and PTA+BMS groups at 3 months (P<0.05). Furthermore, the Rotarex+PTA+DCB group showed lower incidence of ACM/MALEs compared to the other two groups (χ2=18.70, P<0.001). Survival analysis revealed that the Rotarex+PTA+DCB group had significantly better survival outcomes compared to the PTA+BMS group (χ2=14.27, P<0.001) and the PTA group (χ2=3.92, P=0.016). Cox proportional hazards regression analysis identified elevated red cell distribution width (RDW) as an independent risk factor for ACM/MALEs following endovascular therapy in ASO patients, with a relative risk of 1.006 [95%CI (1.002, 1.011), P=0.006]. ConclusionsThe Rotarex+PTA+DCB demonstrate superior outcomes compared to both the PTA and PTA+BMS in terms of patency rate, claudication distance, ABI, and Rutherford classification at 3 months postoperatively, along with the better survival. Furthermore, elevated RDW may serve as a prognostic factor for adverse outcomes in patients with ASO femoropopliteal artery lesions.
Objective To explore the methods of early diagnosis of arteriosclerosis obliterans of lower extremity (ASOLE). Methods The related literatures on ASOLE detection means adopted clinically were reviewed, and their advantages and disadvantages were compared.Results Asymptomatic ASOLE could be discovered by determination of ankle brachial index (ABI) and toe brachial index (TBI), which was a good index for arterial function assessment of lower extremity. Pulse wave velocity (PWV) was more vulnerable and less sensitive than ABI, and therefore more suitable for screening of a large sample. ASI was an index to assess arterial structure and function, and it had a good correlation with PWV. Flow-mediated dilation (FMD) was a measurement evaluating the function of endothelial cell; Pulse wave measurement was simple, sensitive, and its result was reliable. Color Doppler ultrasonography could localizate the lesion and determine the degree of stenosis at the same time. Multiple-slice CT angiography (MSCTA) was more accurate than color Doppler ultrasonography, but its inherent shortcomings, such as nephrotoxicity of contrast agent, was still need to be resolved. 3D-contrast enhancement magnetic resonance angiography (CEMRA) had little nephrotoxicity, but a combination of other imaging methods was necessary. Microcirculation detections required high consistency of the measurement environment, but they were simple, sensitive and noninvasive, and therefore could be used for screening of ASO. Conclusion Publicity and education of highrisk groups, and reasonable selection of all kinds of detection means, are helpful to improve the early diagnosis of ASOLE.
Objective To investigate the effects of femoral offset and mechanical axis of the lower extremity on hip after osteotomy for adult developmental dysplasia of the hip (DDH). Methods A clinical data of 62 adult patients with DDH (62 hips), who underwent periacetabular osteotomy combined with femoral osteotomy between January 2016 and May 2019 and met selective criteria, was retrospectively analyzed. There were 6 males and 56 females. The age ranged from 18 to 38 years, with an average of 24.4 years. Body mass index ranged from 15.8 to 31.8 kg/m2, with an average of 21.8 kg/m2. There were 44 cases of Hartofilakidis typeⅠ and 18 cases of typeⅡ. According to the modified T?nnis osteoarthritis staging, 46 cases were stage 0 and 16 cases were stageⅠ. There were 13 cases with pelvic anteversion, 40 cases with normal pelvis, and 9 cases with pelvic retroversion. Intraoperative blood loss, length of hospital stay, and complications were recorded. Postoperative hip function was evaluated by Harris score and International Hip Outcome Tool (iHOT) score. The femoral offset, collo-diaphyseal angle, hip-knee-ankle angle (HKA), knee valus angle, CE (Wiberg central-edge angle), anterior CE angle, and acetabular index angle were measured and the osteotomy healing was observed on X-ray films. Patients were grouped according to postoperative femoral offset (≥48 mm or <48 mm) and HKA [varus group (HKA<177°), normal group (HKA 177°-183°), and valgus group (HKA>183°)]. Harris score and iHOT score were compared between groups. Results Intraoperative blood loss ranged from 200 to 1 550 mL, with an average of 476 mL. The length of hospital stay ranged from 8 to 21 days, with an average of 13.3 days. All incisions healed by first intention. All patients were followed up 2.0-4.5 years, with an average of 2.8 years. At 1 year after operation, the Harris score and iHOT score of the hip joint significantly increased when compared with those before operation (P<0.05); there were significant differences in the femoral offset, collo-diaphyseal angle, HKA, knee valus angle, CE angle, anterior CE angle, and acetabular index angle between pre- and post-operation (P>0.05). According to the modified T?nnis osteoarthritis staging, 38 cases were stage 0 and 24 cases were stageⅠ; and there was no significant difference between pre- and post-operation (χ2=2.362, P=0.124). There were 11 cases with pelvic anteversion, 38 cases with normal pelvis, and 13 cases with pelvic retroversion, showing no significant difference when compared with that before operation (χ2=0.954, P=0.623). The pubic branch osteotomy did not heal in 9 cases, proximal femur osteotomy did not heal in 2 cases, and inferior pubic ramus stress fracture occurred in 5 cases. There were significant differences (P<0.05) in the Harris score and iHOT score between femoral offset≥48 mm group (n=10) and femoral offset<48 mm group (n=52). There was no significant difference (P>0.05) in Harris score and iHOT score between varus group (n=13), normal group (n=40), and valgus group (n=9). Conclusion Periacetabular osteotomy combined with femoral osteotomy can improve the femoral offset and mechanical axis of the lower extremity of patients with DDH, and improve the functional score of the hip. However, excessive increase of femoral offset during femoral osteotomy is not desirable, resulting in low postoperative functional score.