目的   研究小儿面颈部皮下良性肿物的影像学特点及经头皮区域或腋窝软组织腔镜微创治疗小儿头颈部皮下良性肿物的可行性、临床疗效及安全性。方法   回顾分析2024年1月—2024年8月在广州医科大学附属妇女儿童医疗中心治疗的24例小儿面颈部皮下肿物的病例，患儿年龄为1~5岁，平均年龄1.5岁，其中男15例、女9例；分别为甲状舌管囊肿10例，鳃裂瘘5例，前额皮下肿物5例，颈淋巴结增大3例，颈部皮下肿物1例。分析其影像学特点（超声及CT检查），制定了经头皮区域软组织腔镜微创治疗前额皮下肿物和颈淋巴结活组织检查（活检）或经腋窝软组织腔镜微创治疗甲状舌管囊肿和鳃裂瘘。结果  24例小儿面颈部皮下良性肿物的共同影像学特点是位于浅层，边界清晰，圆形或者椭圆形，对周围组织轻度压迫，无侵犯。所有病例均顺利完成微创手术，出血少，无手术并发症，术后恢复好。术后病理检查均提示良性肿物，面部及颈部均无手术瘢痕。结论   小儿面颈部皮下良性肿瘤的影像学特点是位于浅层，边界清晰。经头皮区域和腋窝软组织腔镜微创治疗小儿面颈部肿物效果确切、安全性高、美观。

       Objective  To  study the imaging characteristics of  subcutaneous  benign tumors in the face and  neck of children，as well as the feasibility，efficacy，and safety of minimally invasive treatment of subcutaneous benign tumors in the head and neck of children through hair area or axillary soft tissue endoscopy．Methods  A  retrospective analysis was conducted on 24 cases of subcutaneous tumors in the face and neck of children treated in our hospital from January to August 2024．Age  range was 1-5 years old，with an average of 1.5 years old．There were 15 boys and 9 girls．There were 10 cases of thyroglossal duct cyst，5 cases of branchial fistula，5 cases of subcutaneous mass on the forehead，3 cases of enlarged cervical lymph nodes，and 1 case of subcutaneous mass on the neck．Imaging characteristics（ultrasound and CT examination）and minimally invasive treatment effects were analyzed，to determine the procedure of minimally invasive treatment of subcutaneous tumors in the forehead and cervical lymph node biopsy by soft tissue endoscopy in the scalp area，and minimally invasive treatment of thyroglossal duct cysts and branchial fistulas through axillary by soft tissue endoscopy．Results  The imaging characteristics of subcutaneous benign tumors in children’s face and neck were located in the shallow layer，with clear boundaries，round or oval shapes，mild compression of surrounding tissues，and no invasion．All cases successfully underwent minimally invasive surgery with minimal bleeding，no  surgical complications，and good postoperative recovery．Postoperative pathological examination confirmed as benign masses．There were no surgical scars on the face and neck．Conclusions  The imaging characteristics of subcutaneous benign tumors in children’s face and neck are located in the shallow layer with clear boundaries．Minimally invasive endoscopic treatment of pediatric face and neck tumors through the scalp area and axillary soft tissue is effective，safe，and aesthetically pleasing．

目的 研究靶向NKG2A抑制剂抗头颈部鳞状细胞癌（HNSCC）的作用。方法 应用GEO和TCGA数据库分析NKG2A及其配体HLA-E单细胞表达情况、与患者预后以及免疫微环境的相关性。构建HNSCC皮下抑制瘤模型,流式细胞技术检测化学治疗（化疗）对免疫检测点NKG2A表达的影响。动物实验验证NKG2A抑制剂以及NKG2A抑制剂联合多西他赛化疗的抗肿瘤作用。结果 NKG2A（KLRC1）主要表达在NK细胞,少量表达在T淋巴细胞。HNSCC肿瘤高表达NKG2A/HLA-E（P<0.01）,与患者不良预后密切相关;肿瘤微环境中NKG2A/HLA-E与多个免疫细胞浸润以及免疫检测点表达密切相关（P<0.01）。动物实验显示化疗能上调T、B淋巴细胞表达免疫检查点NKG2A的表达水平（P<0.01）;化疗的基础上联合NKG2A抑制剂能更有效地介导抗肿瘤作用（P=0.013）。结论 化疗基础上联合NKG2A抑制剂能更有效地介导抗肿瘤作用,为探索HNSCC临床新策略提供实验和理论基础。

Objective To investigate the anti-tumor effects of NKG2A inhibitor on head and neck squamous cell carcinoma（HNSCC）．Methods The single-cell expression of NKG2A ,its ligand HLA-E and their correlations with patient prognosis and immune microenvironment were analyzed in GEO and TCGA databases．The subcutaneous tumor model of HNSCC was constructed,and the effects of chemotherapy on the expression of NKG2A on T and B lymphocytes were detected by flow cytometry．Animal experiments were used to confirmed the anti-tumor effects of NKG2A inhibitor and NKG2A inhibitors combined with docetaxel．Results NKG2A（KLRC1）was mainly expressed in NK cells,and a small amount was expressed in T lymphocytes．The high expression of NKG2A/HLA-E in HNSCC tumors（P<0.01）were closely related to poor prognosis．NKG2A/HLA-E in tumor microenvironment were closely related to the infiltration of multiple immune cells and the expression of immune checkpoints（P<0.01）．Animal experiments showed that chemotherapy could up-regulate the expression of NKG2A in T and B lymphocytes（P<0.01）．Chemotherapy in combination with NKG2A inhibitor could mediate more effective antitumor effects in HNSCC（P=0.013）．Conclusions Combined with NKG2A inhibitor on the basis of chemotherapy can mediate more effective anti-tumor effects,and this study may provide experimental and theoretical basis for exploring new clinical strategies of HNSCC．

目的 应用锥形束CT比较改良颈肩体热塑膜和传统颈肩体热塑膜体位固定装置在颈胸段食管癌患者放射治疗中的摆位差异,分析两种固定方式对锁骨上下区摆位误差的影响。方法 分析2021年6月—2022年10月在南京医科大学第一附属医院行放射治疗的29例食管癌患者的临床资料。将患者分为改良颈肩体热塑膜组（改良组）和光板颈肩体热塑膜组（对照组）,对比分析2组病例不同配准区域的摆位误差。结果 改良组在X（左右）方向的平移误差及Rz（冠状面）方向的旋转误差小于对照组,差异有统计学意义（P<0.05）。改良组锁骨上下区在X（左右）方向的平移误差以及Rx（矢状面）方向的旋转误差小于对照组,差异有统计学意义（P<0.05）。改良组的整体靶区外放范围在X、Y方向上均小于颈肩体组,改良组在锁骨上下区的X方向靶区外放范围也更小。结论 对于颈胸段食管癌需行锁骨上下区放疗的患者,应用改良颈肩体热塑膜可减少平移误差,控制旋转角度,减少靶区外放范围。

Objective To compare the set-up errors between the modified neck-shoulder body thermoplastic film and the traditional neck-shoulder body thermoplastic film fixation device in the radiotherapy of patients with cervical and thoracic esophageal cancer by cone beam CT,and to analyze the influence of the two fixation methods on the positioning error of the upper and lower clavicular region．Methods The clinical data of 29 patients with esophageal cancer who underwent radiotherapy in the First Affiliated Hospital of Nanjing Medical University from June 2021 to October 2022 were analyzed．The patients were divided into two groups：the modified neck-shoulder body thermoplastic film group（the modified group）and the smooth neck-shoulder body thermoplastic film group（the control group）,the positioning errors in different regions of the two groups were compared and analyzed．Results The translation error in the X（left and right）direction and the rotation error in the Rz（coronal plane）direction of the modified group were smaller than those of the control group,and the differences were statistically significant（P<0.05）．The translation error in the X（left and right）direction and the rotation error in the Rx（sagittal plane）direction of the superior and inferior clavicular region in the modified group were smaller than those in the control group,and the differencs were statistically significant（P<0.05）．The overall target area of the modified group was smaller in X and Y directions than that of the neck-shoulder body group,and the target area of the improved group in X direction was also smaller in the upper and lower clavicle area．Conclusions For patients with cervical and thoracic esophageal cancer who need radiotherapy in the upper and lower clavicular region,the application of modified neck shoulder body thermoplastic film can reduce the translation error,control the rotation angle and reduce the external radiation range of the target region．

目的 探究空心加压螺钉(CCS)和股骨颈系统(FNS)两种不同的内固定方法治疗60岁以下患者股骨颈骨折的疗效。方法 回顾性研究2018年1月—2019年9月期间在我院接受内固定手术治疗的100例股骨颈骨折患者,根据内固定方式不同,分为FNS组(观察组)和CCS组(对照组),比较2组患者的术后并发症、围手术期特征;并在手术前和手术后1年使用Harris髋关节评分(HHS)评估关节功能。结果 2组患者中,观察组的手术时间和围手术期出血量均大于对照组(P<0.05);术后观察组的骨愈合时间低于对照组,且观察组股骨颈短缩程度也低于对照组(P<0.05);观察组螺钉切除发生率以及术后并发症总发生率均低于对照组(P<0.05)。结论 年龄小于60岁的股骨颈骨折患者通过CCS或FNS治疗可以获得满意的临床效果。 FNS 具有优异的生物力学性能,并显示出更高的整体结构稳定性。

Objective To explore the curative effect of two different internal fixation methods, cannulated compression screw (CCS) and femoral neck system (FNS), in the treatment of femoral neck fractures in patients under 60 years old. Methods Retrospectively studied 100 patients with femoral neck fractures who underwent internal fixation surgery in our hospital from January 2018 to September 2019. According to different internal fixation methods, they were divided into FNS group (observation group) and CCS group (control group). The postoperative complications and perioperative characteristics of the two groups of patients were compared, and the Harris Hip Score (HHS) was used to assess joint function before and 1 year after the operation. Results In the two groups of patients, the operation time and perioperative blood loss of the observation group were more than those of the control group (P<0.05); the bone healing time of the observation group was shorter than that of the control group, and the degree of femoral neck shortening in the observation group was also lower than the control group (P<0.05); the incidence of screw resection and the total incidence of postoperative complications in the observation group were lower than those in the control group (P<0.05). Conclusions Patients with femoral neck fractures under 60 years old could obtain satisfactory clinical results through CCS or FNS treatment. FNS had excellent biomechanical properties and showed significantly higher overall structural stability.

目的 探讨个体化低速率对比剂注射方案联合低管电压扫描在低体质量指数(body mass index,BMI)受检者头颈部CT血管成像的可行性。方法 选取我科2020年1月—2020年11月低BMI受检者头颈部CTA检查90例进行研究,随机分成三组,每组30例。A组80 kV扫描,低流速、低总量注射方案; B组120 kV扫描,高流速、低总量注射方案;C组为120kV扫描条件,高流速、高总量注射方案。对比各组注射流速、注射总量、辐射剂量长度乘积(dose legth product,DLP),评价各组图像的主动脉弓、颈总动脉、基底动脉、胸锁乳突肌中段的CT值、信噪比及对比信噪比,由两名有经验的放射科医生对各组图像质量进行主观评价。结果 图像质量主观评价A、B两组图像评分集中在4分段,C组图像评分集中在3分段,A、B组与C组主观评分比较差异有统计学意义(P<0.05)。A组对比剂注射流速和DLP比B、C组分别下降27.75%、47.10%;A、B组对比剂注射总量较C组下降39.87%,差异有统计学意义(P<0.05)。A组各血管CT值对应比B、C组数值稍高,除主动脉弓CT值外其余血管客观参数对比均有差异(P<0.05)。结论 低BMI受检者头颈部CT血管个体化低流速精准对比剂注射方案联合低管电压扫描技术在获得满足诊断要求图像质量的前提下,既能降低受检者对比剂注射速率和注射风险,又能降低辐射剂量,值得推广应用。

Objective To explore the feasibility of individualized low rate contrast agent injection scheme combined with low tube voltage scanning in CTA imaging of low body mass index(BMI) subjects' head and neck. Methods Ninety cases of head and neck CTA examination of low BMI subjects in our department from January 2020 to November 2020 were selected for the study, and randomly divided into three groups with 30 cases in each group. Group A applied 80 kV scanning, low flow rate and low total volume injection scheme. Group B applied 120 kV scanning, high flow rate, low total volume injection scheme. Group C applied 120 kV scanning, high flow rate and high total volume injection scheme. The injection velocity, injection volume, radiation dose length product (DLP) among three groups were compared. In each image of the aortic arch, common carotid artery, basilar artery and the central part of sternocleidomastoid, the CT value, the signal-to-noise ratio and contrast-to-noise ratio were evaluated. Two experienced radiologists performed image quality evaluation. Results Image quality in group A and B by subjective evaluation got 4 points out of 4, and group C got 3 points out of 4, and there was statistical difference between group A, B and C in subjective evaluation of image quality (P<0.05). The injection velocity and DLP of contrast agent in group A were 27.75% and 47.10% lower than those in group B and C, respectively. The total amount of contrast agent injection in groups A and B was decreased by 39.87% compared with group C, with statistical difference (P<0.05). The corresponding CT values of each vessel in group A were slightly higher than those in group B and C, and there were statistically significant differences in the Objective parameters of other vessels except for aortic arch (P<0.05). Conclusion The combination of individualized low flow rate and precise contrast agent injection scheme with low tube voltage scanning technology for low BMI subject could not only reduce the injection rate and risk of contrast agent, but also reduce radiation dose, on the premise of meeting the diagnostic requirements of image quality. It is worthy of popularization and application.

目的 研究全髋关节置换术对于股骨颈骨折老年患者的适用性。方法 回顾性分析本院2012年1月—2014年1月间收治的89例股骨颈骨折老年患者,根据不同治疗术式将患者分为两组,将其中采取人工全髋关节置换术治疗的56例患者纳入全髋组,以将其中采取半髋关节置换术治疗的33例患者纳入半髋组,对比两组患者的手术情况,随访一年评估疗效并统计功能恢复时间以及并发症发生情况。结果 半髋组各项手术情况观察指标均优于全髋组,P<0.05;治疗后随访一年,全髋组总有效为96.43%,半髋组总有效率为93.94%,全髋组疗效优于对照组,P<0.05;全髋组并发症发生率为3.57%,半髋组并发症发生率为18.18%,全髋组并发症发生率优于半髋组,P<0.01。结论 全髋关节置换术治疗股骨颈骨折老年患者适用性高于半髋关节置换术,可考虑作为老年患者的首选术式加以推广。

Objective To study the applicability of total hip arthroplasty in elderly patients with femoral neck fracture. Methods A retrospective analysis of 89 cases of elderly patients with femoral neck fracture in our hospital was made from January 2012 to January 2014, according to different surgical methods. The patients were divided into two groups, among them 56 cases of total hip arthroplasty were in the total hip group, and 33 cases of hip replacement were in the semi hip arthroplasty group. To compare the surgery condition, one year of follow-up evaluation of occurrence curative effect was made and added up the function recovery time and complications in the two groups. Results The surgical observation indicators in the semi arthroplasty group were better than the total hip group, P<0.05; follow-up one year after the treatment, the total effective rate of the total hip group was 96.43%, that in the semi hip arthroplasty group was 93.94%, thus the curative effect of the total hip group was better than the control group, P<0.05; The incidence of complications of the total hip arthroplasty group was 3.57%, that in the semi hip arthroplasty group was 18.18%, thus the incidence of complications of the total hip group was better than the semi hip group, P<0.01. Conclusion The adaptability of the total hip arthroplasty in the treatment of elderly patients with femoral neck fractures is better than the semi hip replacement surgery, and it may be considered as the first choice for the elderly patients to promote.

目的 通过采用本体感觉神经肌肉刺激技术（PNF）对慢性颈痛患者进行治疗,观察患者颈部肌肉力量是否得到增强,以及颈椎的Cobb角是否得到改善。方法 将符合纳入标准的30例慢性颈痛患者纳入研究对象（PNF组）。研究对象接受为期4周的PNF技术治疗,对比治疗前（基线）和治疗4周后颈部最大等长收缩肌力（MIS）,并比较治疗前后Cobb角。结果 共30例患者完成研究。治疗后颈椎Cobb角明显改善,治疗4周后对比基线Cobb角差异具有统计学意义（t=4.925,P<0.001）。颈椎屈曲和伸展的力量经过4周治疗后都得到明显的改善,颈椎伸展的MIS从（15.8±2.5）lbs增加到（19.3±3.1）lbs,比较基线差异具有统计学意义（t=5.685,P<0.001）。颈椎屈曲的MIS从13.9（10.3,15.6）lbs增加到17.8（15.3,18.8）lbs,治疗4周后对比基线差异具有统计学意义（Z=-4.783,P<0.001）。结论 PNF技术能有效增强颈部肌肉力量,可有效增大颈椎Cobb角,可能为颈椎变直的慢性颈痛患者的治疗带来积极的影响。

Objective To observe whether the strength of the neck muscles and the Cobb angle of the cervical vertebra are improved by proprioceptive neuromuscular facilitation（PNF）in the treatment of patients with chronic neck pain. Methods Thirty patients with chronic neck pain who met the inclusion criteria were included in the study group（PNF group）. They were treated with PNF for four weeks, maximal isometric strength（MIS）and Cobb angle in the neck were compared at before（baseline）and four weeks after treatment. Results A total of 30 participants completed the study. The Cobb angle of cervical spine was significantly improved after treatment,and the Cobb angle before treatment was significantly different from that after four weeks of treatment（t=4. 925, P<0. 001）. The strength of cervical flexion and extension improved significantly after four weeks of treatment,and the MIS of cervical extension increased from（15. 8±2. 5）lbs to（19. 3±3. 1）lbs, which was statistically significant compared to baseline（t=5. 685, P<0. 001）. Cervical flexion MIS increased from 13. 9（10. 3,15. 6）lbs to 17. 8（15. 3,18. 8）lbs,and the difference was statistically significant compared to baseline after four weeks of treatment（Z=-4. 783, P<0. 001）. Conclusions PNF can effectively enhance the strength of neck muscles,and can effectively increase the Cobb angle of cervical spine, which may have a positive impact on the treatment of chronic neck pain patients with cervical straightening.

       目的   对比分析双极半髋关节置换术（BHA）与全髋关节置换术（THR）治疗股骨颈骨折（FNF）的效果。方法   回顾性收集北京中医药大学东直门医院洛阳医院2019年6月—2023年4月90例FNF患者临床资料，依照手术治疗方案差异分为两组，BHA组（45例）行BHA治疗，THR组（45例）行THR治疗，比较两组围术期指标、术前及术后3 d炎症因子水平、术后6个月髋关节活动度、术前及术后6个月生活质量［欧洲生活质量评分（EQ-5D评分）］。结果  THR组手术时间（108.76±15.33）min、下床活动时间（40.37±10.24）h、住院时间（19.02±5.11）d均较BHA组［（53.49±10.12）min、（25.92±7.15）h、（15.16±4.87）d］长（t分别为20.184、7.761、3.668，均P＜0.05），术中失血量（318.69±35.14）mL、术后引流量（129.74±21.03）mL均较BHA组［（224.07±29.35）mL、（90.35±17.48）mL］多（t分别为13.863、9.663，均P＜0.001）；组间并发症发生率比较差异无统计学意义（P＞0.05）；术后3 d，BHA组血清白细胞介素-1为（17.35±3.06）pg/L、白细胞介素-6为（24.82±4.31）pg/L、C-反应蛋白为（26.17±4.59）pg/L，低于THR组的（20.16±3.48）pg/L、（27.04±5.06）pg/L、（28.90±5.12）pg/L（t分别为4.068、2.241、2.663，均P＜0.05）；两组术后6个月髋关节内旋、屈曲、外旋、外展、内收活动度及EQ-5D评分对比差异均无统计学意义（均P＞0.05）。结论   与THR相比，BHA能减少FNF患者围术期失血量，降低术后炎症因子表达水平，缩短手术及下床活动时间，促进恢复。

      Objective  To compare and analyze the effects of bipolar hemihip replacement（BHA）and total  hip replacement（THR）in the treatment of femoral neck fracture（FNF）．Methods  The clinical data of 90 patients with FNF in the Luoyang Hospital，Dongzhimen Hospital，Beijing University of Chinese Medicine，from June 2019 to April 2023 were retrospectively collected．The patients were divided into two groups according to the difference in surgical treatment plan．The BHA group（45 cases）received BHA treatment，and the THR group（45 cases）received THR treatment．The perioperative indicators，preoperative and postoperative inflammatory factor levels，postoperative hip joint mobility at six months，preoperative and postoperative quality of life ［European Quality of Life Scale（EQ-5D score）］were compared between the two groups．Results  The operation time（108.76±15.33）min，ambulation time（40.37±10.24）h，and hospitalization time（19.02±5.11）d in the  THR  group were longer than those in the BHA group ［（53.49±10.12）min，（25.92±7.15）h，（15.16±4.87）d］（t=20.184，8.630，3.668，respectively，all P＜0.05）．The intraoperative blood loss（318.69±35.14）mL and  postoperative  drainage volume（129.74±21.03）mL were both higher than those in the BHA group ［（224.07±29.35）mL，（90.35±17.48）mL］（t=13.863，9.663，respectively，all P＜0.001）．There was no significant difference in the incidence of complications between the groups（P＞0.05）．Three days after surgery，the serum levels of interleukin-1，interleukin-6，and C-reactive protein in the BHA group were（17.35±3.06）pg/L，（24.82±4.31）pg/L，and（26.17±4.59）pg/L，respectively，which were lower than those in the THR group（20.16±3.48）pg/L，（27.04±5.06）pg/L，and（28.90±5.12）pg/L（t=4.068，2.241，2.663，respectively，all P＜0.05）．There was no significant difference in the range of motion of internal rotation，flexion，external rotation，abduction，and adduction of the hip joint and EQ-5D scores between the two groups at six months after surgery（all P＞0.05）．Conclusions  Compared with THR，BHA can reduce perioperative blood loss in FNF patients，reduce postoperative inflammatory factor expression level，shorten operation and ambulation time，and promote recovery．