经乙状窦后道上结节入路切除岩斜区脑膜瘤

目的 探讨经乙状窦后道上结节入路切除岩斜区脑膜瘤的手术技巧、疗效及适应证。方法 回顾性分析2016年5月—2019年3月采用该入路切除的15例岩斜区脑膜瘤患者的临床特征、手术方法及术后并发症。结果 15例术前均表现头痛、5例面部感觉减退、2例面部疼痛、1例听力下降。SimpsonⅡ级切除11例，Ⅲ级切除3例，Ⅳ级切除1例。平均随访15个月，无死亡，术后远期生活质量评估（KPS）评分80~90分。术后头痛15例均缓解，面部感觉减退3例缓解、2例加重、新增2例，面部疼痛2例缓解，听力下降1例未缓解，新增复视2例、6个月后均缓解。结论 掌握好适应证，经乙状窦后道上结节入路是切除岩斜脑膜瘤的较好途径。     

“血尿”“三问十二字”临床教学思路探讨

血尿是肾病科常见的临床表现,对于血尿的病因诊断分析在临床中不容易掌握,有漏诊的风险,因此需要系统而全面的诊断思路。我科在临床教学中总结了"三问十二字"的教学思路,收到较好的效果。三问包括第一问尿液呈现红色是否为血尿?第二问为符合血尿是否为病理状态?第三问为血尿一定是否只有肾脏疾病?通过三问来明确血尿的定义,并逐渐剖析临床非血尿、真性血尿、假性血尿、内科性血尿以及外科性血尿的意义。再通过内科性血尿的特点高度概括出"十二个字",以帮助学生区分内科性血尿及外科性血尿。通过"三问十二字"的深入浅出学习,可以将血尿复杂的诊断思路由繁入简掌握,并实践于临床。     

肝内胆管癌术前评估要点

肝内胆管癌（ICC）是发病率仅次于肝细胞癌的原发性肝癌，其恶性程度高，预后差。近年来，ICC的发病率逐步上升。根治性手术切除是目前可能使病人获得长期生存最有效的治疗方式，但根治性切除率低、术后复发率高仍是外科医生和ICC病人共同面临的巨大阻碍。然而由于ICC发病隐匿和恶性程度高的特性使很多病人初诊时便丧失了手术治疗的机会。因此，早期筛查、准确临床诊断、充分术前评估及完备精准的手术方案是手术赖以顺利实施的保障。癌胚抗原（CEA）和CA19-9对ICC的诊断具有一定价值。影像学检查是诊断ICC的最重要手段。腹部超声是临床第一线的早期筛查手段；CT和MRI是临床上用于ICC最常用的影像学检查。三维重建技术为术前残肝体积预估，手术方案制定提供更直接更精准的信息。建立能准确预测ICC预后的分期系统非常重要。术前减黄是否需要尚存争议。残肝体积和肿瘤是否转移是判断手术可切除性的两个要点。腹腔镜探查、腹腔镜超声检查及术中快速冷冻活检是判断是否可实施根治性切除的重要手段。     

“One-piece” patient-specific reconstruction plate for double-barrel fibula-based mandibular reconstruction

Segmental mandibular defects require reconstruction. The fibula flap serves as a versatile flap in restoring mandibular contour and bony height. With the advances in computer-aided design and additive manufacturing technology, an innovative “one-piece” patient-specific reconstruction plate to facilitate double-barrel fibula flap shaping and bone securing was developed; the plate is described in this study. The “one-piece” plate is fabricated with individualized specifications and is mainly composed of three components: the long-bar reconstruction plate, a short-bar plate, and connecting bars. Our initial experiences showed that mandibular reconstructive surgery was greatly facilitated by the “one-piece” reconstruction plate for double-barrel fibula flap reconstruction and achieved satisfactory outcomes. A well-designed clinical trial is required to confirm the superiority of the “one-piece” reconstruction plate in the future. ClinicalTrials.gov registration: NCT03057223.     

Comparison of Gap Balancing vs Measured Resection Technique in Patients Undergoing Simultaneous Bilateral Total Knee Arthroplasty: One Technique per Knee

BackgroundTotal knee arthroplasty requires careful surgical technique to attain the goal of a well-aligned and symmetrically balanced knee. Soft tissue balance and correct femoral component rotation are paramount in achieving these goals. The two competing techniques to select femoral component rotation and soft tissue balance are the gap balance technique and the measured resection technique.MethodsWe performed a randomized, prospective study to compare the two techniques in patients undergoing simultaneous bilateral total knee arthroplasty, whereby one technique was performed in each knee. Fifty (50) subjects were enrolled into the study. The inclusion criteria were osteoarthritic varus knee deformities with similar deformities in both knees. Subjects were followed up for a minimum of two years.ResultsThe knees balanced via the gap balance technique had significantly more posterior medial bone removed from the femur than those knees balanced via the measured resection technique (P < .001). Knees in the gap balance group tended to require more medial knee releases in extension and tended to have smaller sized femoral components as a result of cutting more bone from the femur in flexion. The modular tibial polyethylene bearing tended to be thicker in the gap balance group. Despite these differences, average knee flexion and functional revised Oxford Knee Scores at 2-year follow-up were not statistically different.ConclusionAt 2-year follow-up, there were no differences between the function and scores using the two techniques. Long-term follow-up will be necessary to evaluate any differences in long-term durability.