OBJECTIVE: To explore the technique of autogenous bone graft combined with plate fixation in total knee arthroplasty(TKA) with severe proximal medial tibial bone defect. METHODS: From March 2012 to October 2018, 21 patients (9 males and 12 females) with severe bone defects in the proximal medial tibia during primary total knee arthroplasty were treated with autogenous structural bone grafting and steel plate fixation, with an age of 61 to 77 years old with an average of (69.6±9.1) years and a course of 64 to 257 months with an average of (73.6±170.7) months. According to Rand classification, there were 13 cases of type Ⅲb and 8 cases of type Ⅳb. Postoperative complications were observed, and knee joint function was evaluated by the Hospital for Special Surgery (HSS) score and SF-36 quality of life score. RESULTS: All 21 patients were followed up for 37 to 64 months with an average of (49.5±13.7) months. The incisions of all patients healed smoothly, and 2 patients developed lower limb intermuscular venous plexus thrombosis after operation. There were no periprosthetic infection, loosening of prosthesis and other complications. The autogenous bone grafts of all patients achieved bony healing during postoperative X-ray follow-up, and the healing time was 8 to 13 months with an average of (10.1±2.3) months. The HSS score of patients increased significantly from 30 to 48 with an average of (53.4±4.2) before operation to 75 to 92 with an average of (81.2±8.4) at the final follow-up (P<0.05). The SF-36 quality of life score of patients after operation was significantly different from that before operation (P<0.05). CONCLUSION The technique of autogenous bone graft combined with steel plate fixation can achieve satisfactory osseointegration effect in the treatment of severe proximal tibial bone defects in primary knee arthroplasty, with less complications and obvious improvement in knee function.
Male ; Female ; Humans ; Middle Aged ; Aged ; Arthroplasty, Replacement, Knee/methods* ; Tibia/transplantation* ; Bone Transplantation/methods* ; Quality of Life ; Transplantation, Autologous ; Steel

BACKGROUND: Treatment of coronary bifurcation lesions remains challenging; a simple strategy has been preferred as of late, but the disadvantage is ostium stenosis or even occlusion of the side branch (SB). Only a few single-center studies investigating the combination of a drug-eluting stent in the main branch followed by a drug-eluting balloon in the SB have been reported. This prospective, multicenter, randomized study aimed to investigate the safety and efficacy of a paclitaxel-eluting balloon (PEB) compared with regular balloon angioplasty (BA) in the treatment of non-left main coronary artery bifurcation lesions. METHODS: Between December 2014 and November 2015, a total of 222 consecutive patients with bifurcation lesions were enrolled in this study at ten Chinese centers. Patients were randomly allocated at a 1:1 ratio to a PEB group (n = 113) and a BA group (n = 109). The primary efficacy endpoint was angiographic target lesion stenosis at 9 months. Secondary efficacy and safety endpoints included target lesion revascularization, target vessel revascularization, target lesion failure, major adverse cardiac and cerebral events (MACCEs), all-cause death, cardiac death, non-fatal myocardial infarction, and thrombosis in target lesions. The main analyses performed in this clinical trial included case shedding analysis, base-value equilibrium analysis, effectiveness analysis, and safety analysis. SAS version 9.4 was used for the statistical analyses. RESULTS: At the 9-month angiographic follow-up, the difference in the primary efficacy endpoint of target lesion stenosis between the PEB (28.7% ± 18.7%) and BA groups (40.0% ± 19.0%) was -11.3% (95% confidence interval: -16.3% to -6.3%, Psuperiority <0.0001) in the intention-to-treat analysis, and similar results were recorded in the per-protocol analysis, demonstrating the superiority of PEB to BA. Late lumen loss was significantly lower in the PEB group than in the BA group (-0.06 ± 0.32 vs. 0.18 ± 0.34 mm, P < 0.0001). For intention-to-treat, there were no significant differences between PEB and BA in the 9-month percentages of MACCEs (0.9% vs. 3.7%, P = 0.16) or non-fatal myocardial infarctions (0 vs. 0.9%, P = 0.49). There were no clinical events of target lesion revascularization, target vessel revascularization, target lesion failure, all-cause death, cardiac death or target lesion thrombosis in either group. CONCLUSIONS: In de novo non-left main coronary artery bifurcations treated with provisional T stenting, SB dilation with the PEB group demonstrated better angiographic results than treatment with regular BA at the 9-month follow-up in terms of reduced target lesion stenosis. TRIAL REGISTRATION ClinicalTrials.gov, NCT02325817; https://clinicaltrials.gov.

Objective: To evaluate the safety and effectiveness of a vaccine based on latent membrane protein 2 (LMP2) modified dendritic cells (DCs) that boosts specific responses of cytotoxic T lymphocytes (CTLs) to LMP2 before and after intradermal injection in patients with nasopharyngeal carcinoma (NPC). Methods: DCs were derived from peripheral blood monocytes of patients with NPC. We prepared LMP2-DCs infected by recombinant adenovirus vector expressing LMP2 (rAd-LMP2). NPC patients were immunized with 2 × 10 Results: We demonstrated that DCs derived from monocytes displayed typical DC morphologies; the expression of LMP2 in the LMP2-DCs vaccine was confirmed by immunocytochemical assay. Twenty-nine patients with NPC were enrolled in this clinical trial. The LMP2-DCs vaccine was well tolerated in all of the patients. Boosted responses to LMP2 peptide sub-pools were observed in 18 of the 29 patients with NPC. The follow-up data of 29 immunized patients from April, 2010 to April 2015 indicated a five-year survival rate of 94.4% in responders and 45.5% in non-responders. Conclusion In this pilot study, we demonstrated that the LMP2-DCs vaccine is safe and effective in patients with NPC. Specific CTLs responses to LMP2 play a certain role in controlling and preventing the recurrence and metastasis of NPC, which warrants further clinical testing.
Adult ; Aged ; Cancer Vaccines/therapeutic use* ; China ; Dendritic Cells/immunology* ; Female ; Humans ; Immunotherapy/methods* ; Injections, Intradermal ; Male ; Middle Aged ; Nasopharyngeal Carcinoma/therapy* ; Nasopharyngeal Neoplasms/therapy* ; T-Lymphocytes, Cytotoxic/immunology* ; Viral Matrix Proteins/therapeutic use* ; Young Adult

Objective To validate the accuracy and reliability of structured-light three-dimensional （SL-3D） scanning in measuring the length and area of the regular and irregular scars on body surface and discuss its value in forensic practice. Methods The lengths of 30 cases of simulated linear scars and 50 cases of linear scars after injury were measured using soft ruler, vernier caliper + thin line method, and SL-3D scanning. The areas of 35 cases of simulated patchy scars and 15 cases of patchy scars after injury were measured using length × width, film tracing with coordinate paper method, pixel method, and SL-3D scanning, and then statistically analyzed. Results The differences between the length of the simulated linear scars measured by SL-3D scanning and standard length had no statistical significance. When simulated patchy scars and patchy scars after injury were measured with high surface curvature and large irregular areas, the differences between the results of SL-3D scanning measurement and the standard area had no statistical significance. When the length of 50 cases of linear scars after injury were measured using SL-3D scanning, the correlation coefficient between the measurement results of two different investigators was 0.998, and the correlation coefficient between the two measurement results by the same investigator was 1.000. The correlation coefficient between the results of SL-3D scanning and that of vernier caliper + thin line method was 0.996. Conclusion The three-dimensional information of the scars on the body surface can be acquired using SL-3D scanning. The measurement of the length and area of the scars is not influenced by the location of scars, curvature of surface, and human factors. The measurement results are accurate, reliable and has unique advantages.
Cicatrix/pathology* ; Data Collection ; Forensic Medicine ; Humans ; Imaging, Three-Dimensional ; Reproducibility of Results ; Research Design

OBJECTIVE: To study clinical effects of modified Mclaughlin procedure combined with locking plate for posterior shoulder dislocation with proximal humeral fracture which area of femoral head injury less than 40%. METHODS: From July 2012 to June 2017, 7 patients with posterior shoulder dislocation were treated, including 5 males and 2 females; aged from 37 to 53 years old. Three patients combined with split of humerus head and 4 patients combined with humerus surgical neck fracture. All patients treated with modified Mclaughlin procedure combined with locking plate. Motion of shoulder joint after operation was observed, postoperative UCLA score was used to evaluate clinical effects. RESULTS: Seven patients were followed up from 10 to 33 months. The motion of anteflexion and up-lift ranged from 130° to 170°, the motion of extorsion ranged from 45° to 75°, the motion of abduction ranged fron 105° to 150°, and the internal rotation was between L₃ to buttock. UCLA score ranged from 29 to 34; and 1 patient reached excellent, and 6 patients good. CONCLUSIONS The modified Mclaughlin procedure combined with locking plate showed satisfying result for posterior shoulder dislocation combined with fractures. However, the internal rotation of shoulder could be compromised.
Adult ; Bone Plates ; Female ; Fracture Fixation, Internal ; Humans ; Humeral Fractures ; Male ; Middle Aged ; Shoulder Dislocation ; Shoulder Fractures ; Treatment Outcome

Objective To discuss the stool coccobacillus flora features between lung diseases patients and non-lung diseases patients for confirming homotherapy for the lung and the large intestine ideology based on the lung and large intestine being interior-exteriorly related theory. Methods Totally 112 patients were divided into lung diseases group (47 cases) and non-lung diseases group (65 cases) by cross-sectional study. Questionnaire survey for patients was used, including general demographic information, lung diseases and course of disease, non-lung diseases and course of disease, medication, diet, sleep, emotional, physical and stool. Stool specimens were collected and smear method was used to detect the ratio of coccus. Results 3 cases were lost in the lung diseases group and 5 cases were lost in the non-lung diseases group. Stool coccobacillus mean proportionality was 0.78 in lung diseases group, and 0.35 in non-lung diseases group, with statistical significance (P=0.041). Stool gram negative bacilli mean value was 56.59% in lung diseases group, and 65.50% in non-lung diseases group, with statistical significance (P=0.040). Stool gram positive coccus mean value was 33.52% in lung diseases group, and 23.80% in non-lung diseases group, with statistical significance (P=0.004). There were 23 cases of stool gram negative bacilli aberrant type in lung diseases group, and 44 cases in non-lung diseases group, with statistical significance (P=0.038). There were 21 cases of loss of appetite in lung diseases group, and 14 cases in non-lung diseases group, with statistical significance(P=0.012). There were 23 cases of constipation in lung diseases group, and 19 cases in non-lung diseases group, with statistical significance (P=0.044). There were 15 cases of loose stool in lung diseases group, and 9 cases in non-lung diseases group, with statistical significance (P=0.033). Conclusion Lung diseases patients occur to alteration of intestinal flora potentially. And symptoms include loss of appetite, constipation, loose stool, which occur to lung diseases patients significantly, indicating lung and large intestine tend to exist homopathy. It is important to homotherapy for the lung and the large intestine based on the lung and the large intestine being interior-exteriorly related.

OBJECTIVETo calculate the volume of occult blood loss after unicompartment knee arthroplasty(UKA), and analyze its influential factors by comparing with total knee arthroplasty.

METHODSA retrospective study of 130 cases from July 2012 to July 2015 were enrolled, of which and 65 cases were UKA, and 65 cases were TKA. In UKA group there were 27 males and 38 females, and the mean age was (62.3±4.3) years old (ranged, 50 to 82 years old). There were 14 cases older than 70 years old, while 51 cases among 50 to 70 years old. The mean Body mass index (BMI) was (23.9±2.6) kg/m²(ranged, 18.3 to 30.1 kg/m²). In TKA group there were 23 males and 42 females, and the mean age was (67.4±4.9) years old (ranged, 57 to 81 years old). There were 34 cases older than 70 years old, while 31 cases among 50 to 70 years old. The mean BMI was (25.6±2.3) kg/m²(ranged, 20.6 to 33.1 kg/m²). Hidden blood loss was calculated according to Gross equation, and the differences between the two groups including different ages and genders were observed subsequently. The differences of red blood cell change between two groups were observed dynamically postoperatively.

RESULTSPostoperative hidden blood loss was (375.25±168.09) ml, HSS score was 87.11±5.39 in UKA group. Hidden blood loss was (898.81±221.47) ml, HSS score was 82.23±3.08 in TKA group. The differences between the two groups were significant. There were no significant differences in ages and genders. There were no significant relationship between hidden blood loss and HSS score or BMI, while the differences of red blood cell change were significant on the second day, the 4th day and the 5th day. There was no allogenic blood transfusion in UKA group, while 3 patients with transfusion in TKA group.

CONCLUSIONSHidden blood loss is part of total blood loss after UKA, and the volume in UKA is less than that in TKA. It could be compensated by the body and rarely affect the knee function. The hidden blood is not a risk factor of transfusion.

Objective To investigate the clinical features and treatment of solid pseudopapillary neoplasm (SPN) of the pancreas.Methods The retrospective cross-sectional study was conducted.The clinicopathological data of 69 patients with SPN of the pancreas who were admitted to the Qilu Hospital of Shandong University from January 2012 to July 2017 were collected.Serum tumor markers detection,enhanced computed tomography (CT) and magnetic resonance imaging (MRI) of abdomen were carried out preoperatively for all the patients,and a part of the patients received endoscopic ultrasonography (EUS).Surgery plans were formulated after completion of examinations.Observation indicators:(1) clinical features;(2) treatment situation;(3) results of pathological examination;(4)follow-up.All the patients were followed up via outpatient examination and telephone interview to detect the survival and tumor recurrence and metastasis till July 2017.Measurement data with normal distribution were presented by (x)±s and were compared by Student's t test.Count data were compared by chi-square test.Results (1) Clinical features:① epidemiologic features:the ratio of male to female was 1∶5.9;patients were aged between 9 and 65 years,including 40 under 30 years and 29 above or equal to 30 years.The onset age was (34± 15)years for male patients and (28 ± 11)years for female patients,respectively,with no statistically significant difference (t=1.364,P＞0.05).Of 69 patients,SPN was located at pancreatic uncinate process in 25 patients,at neck of pancreas in 12 patients,body and tail of pancreas in 32 patients.② Medical history:history of acute or chronic pancreatitis and abdominal trauma were denied by all the 69 patients.③ Clinical manifestation:26 patients had no obvious symptoms and were detected by physical examination;31 patients had discomfort in upper abdomen,nausea and vomiting;other patients were admitted to the hospital because of upper abdominal mass (10 patients),jaundice (1 patient) or nausea,constipation (1 patient).④ Laboratory examination:the levels of preoperative carcinoembryonic antigen (CEA) and CA19-9 were normal.⑤ Imaging examination:plane scan of the CT examination showed round or round-like low-density shadows in the 69 patients,including 51 of cystic solid lesion,13 of solid lesion and 5 of cystic lesion.Complete capsules were observed in 64 patients,blurred boundary between pancreas and adjacent viscera in 5 patients,calcified foci in the pancreatic parenchyma and capsules in 14 patients.Ten patients received MRI examination,and the T1-weighted images showed equal or slightly lower signal,T2-weighted images showed slightly higher signal in the plane scan,and T1-weighted and T2-weighted images of the tumor capsule showed continuous or non-continuous ring-like signal.The results of enhanced scan showed slightly heterogeneous enhancement of the capsule and the parenchyma of the pancreas in the arterial phase,and progressive enhancement in the venous and delayed phase,while the enhancement degree was lower than that of the normal pancreas parenchyma.The parenchyma was cloud-,papillaor mural nodule-like enhanced.Obvious enhancement was observed in capsule while not in the cystic components.The boundaries of the tumors in 5 patients were clear under EUS.Hypo-,iso-and hyperechoic regions were found in the masses,and the masses were confirmed as cyst-solidary type.Obvious calcified foci were found in 1 patient.(2) Treatment outcome:twenty-seven patients received laparoscopic surgery,including tumor expiration in 13 patients,distal pancreatectomy with preservation of spleen in 8 patients,distal pancreatectomy combined with splenectomy in 2 patients,middle pancreatectomy in 2 patients,pancreaticoduodenectomy with preservation of pylorus in 1 patient,pancreatic head resection with preservation of duodenum under the assistance of laparoscopy in 1 patient.Forty-two patients received open surgery,including tumor expiration in 12 patients,distal pancreateetomy with preservation of spleen in 10 patients,distal pancreatectomy combined with spleneetomy in 6 patients,middle pancreatectomy in 5 patients,pancreaticoduodenectomy in 7 patients (with preservation of pylorus in 2 patients) and pancreatic head resection combined with preservation of duodenum in 1 patient.One patient with SPN + hepatic metastasis received distal pancreatectomy+ metastatic foci resection in the lesser omental bursa,and then followed by radiofrequency ablation in the hepatic metastatic foci.Postoperative complications:21 of 69patients had postoperative complications,including 17 intestinal fistulas,2 abdominal bleedings,1 incomplete obstruction,1 pleural effusion + atelectasis,and all of them were cured by symptomatic treatment.(3)Pathological examination:the resection margins of 69 patients were negative.The mean diameter of the tumor was (7±4) cm (21 patients with tumor diameter ＜ 5 cm,and 48 with tumor diameter ≥5 cm).The tumor diameters of 4 in 10 male patients were above or equal to 5 cm,and the number was 44 in 59 female patients,with statistically significant difference (x2 =4.828,P＜0.05).The tumor diameters of 32 in 40 patients who aged under 30 years were above or equal to 5 cm,and the number was 16 in 29 patients who were aged above or equal to 30 years,with statistically significant difference (x2=4.895,P＜0.05).Solid,pseudo-papillary and cystic regions in the SPN tissues were seen under the light microscope.Tumor cells were surrounded the blood vessels and were arranged in the nest or sheet shape in the solid region;blood vessels were surrounded by one or multiple layers of tumor cells in the axis or pseudopapillary shape in the pseudopapillary region;large amount of mucus and clusters of blood cells were seen in the cystic regions.The result of immunohistochemistry showed that the positive rates of α1-antitrypsin,vimentin,β-catenin,progesterone receptor,CD10,synaptophysin and chromogranin A were 100.0％ (39/39),96.6％ (28/29),95.7％ (45/47),94.4％ (51/54),92.5％ (49/53),72.9％ (35/48) and 5.6％ (3/54),respectively.(4) Follow-up:63 of 69 patients were followed up for 1-68 months,with median time of 29 months.No SPN recurrence or metastasis was detected.One patient died of lung cancer at postoperative month 35 and other patients survived well.Conclusions SPN of pancreas is mostly detected in young female patients,and it could be solid or cystic.Abdominal enhanced CT or MRI examination could clarify the diagnosis.EUS-fine needle aspiration examination could provide pathological evidence for definitive diagnosis.Typical cellular morphology and pseudopapillary regions may provide hints for the diagnosis of SPN,and the diagnosis could be clarified when combined with the detection of vimentin,α 1-antitrypsin or other indexes.Complete resection of SPN and ensure negative resection margin are fundamental principles of treatment.

OBJECTIVETo explore mid-term follow up results of distal fixation prosthesis in treating unstable intertrochanteric fractures in elderly patients.

METHODSFrom May 2008 to March 2014,58 elderly patients with unstable intertrochanteric were treated with distal fixation prosthesis, among them, there were 15 males and 43 females aged from 75 to 87 years old with an average of 83.2 years old. Fracture were classified according to Evans classification, 39 cases were type I c and 19 cases were type I d. Surgical risk was evaluated before operation, 9 patients were performed total hip arthroplasty and 49 patients were performed prosthetic replacement hip joint function of patients with different age period, Evans classificaton, prothesis type, fixation method were evaluated respectively by using Harris score.

RESULTSFifty-six patients were followed up from 13 to 36 months with an average of 21.6 months. Harris score was 83.51 ± 6.40, 5 cases got excellent results, 38 cases good and 13 cases moderate. Harris score of patients aged from 75 to 80 years old was 88.64 ± 2.35, 81.64 ± 6.40 in patients aged more than 80 years old, and had significant differences between two groups; Harris score in patients with type Evans I c was 83.64 ± 6.53, and 83.11 ± 6.08 in type Evans I d, while there was no significant differences between two groups. There was no obvious meaning in Harris score between patients with tension band (83.63 ± 6.15) and without tension band (82.41 ± 6.57). There was no significant meaning in Harris score between patients with normal distal fixation prosthesis (83.34 ± 6.43) and femoral moment reconstruction distal fixation prosthesis (83.92 ± 6.51). There was 1 patient occurred hip joint dislocation on the operative side and re-dislocation after manual reduction, then received open reduction. Two patients occurred femoral osteolysis without clinical symptoms, and treated conservative treatment.

CONCLUSIONArtificial joint replacement for unstable intertrochanteric fractures in elderly patients, hip joint function in patients aged more than 80 years old is worse, while there was no obvious market effect in fracture classification, whether to use tension band and type of distal fixation prosthesis, moreover, proximal femoral osteolysis should be focused on.

Aged ; Aged, 80 and over ; Arthroplasty, Replacement, Hip ; Female ; Femur ; surgery ; Follow-Up Studies ; Fracture Fixation, Intramedullary ; Hip Fractures ; surgery ; Hip Joint ; surgery ; Hip Prosthesis ; Humans ; Male ; Treatment Outcome

Objective To evaluate the prognostic value of the log odds of positive lymph nodes (LODDS) in stage 3 colorectal cancer (CRC) patients who have undergone curative resection. Methods We performed a retrospective review of 175 stage 3 CRC patients who underwent curative resection in Peking Union Medical College Hospital from 2005 to 2012. Patients were categorized respectively according to the AJCC/UICC N grade,the metastatic lymph node ratio (LNR),and the ratio of their LODDS. The relationship between the N grade,LNR,LODDS,and overall survival (OS) rates were assessed.Results The five-year disease-free survival (DFS) was significantly different among stage 3 CRC patients in different N grade (Χ(2)=33.1,P=0.000),LNR (Χ(2)=14.3,P=0.001),and LODDS (Χ(2)=14.9,P=0.001). Univariate analysis showed that TNM stage (Χ(2)=27.0,P=0.000),cancerous node(Χ(2)=3.6,P=0.040),N grade (Χ(2)=33.1,P=0.000),LNR (Χ(2)=14.3,P=0.001),and LODDS (Χ(2)=30.4,P=0.000) were related to OS. Multivariate analysis indicated that TNM stage (HR:1.84,95%CI:1.59～6.29,P=0.001) and LODDS classification (HR:1.34,95%CI:1.01～1.80,P=0.047) were independent prognostic factors for OS in stage 3 CRC patients. Conclusion LODDS is a good prognostic indicator in stage 3 CRC patients who have undergone curative resection.
Colorectal Neoplasms ; diagnosis ; pathology ; Disease-Free Survival ; Humans ; Lymph Nodes ; pathology ; Lymphatic Metastasis ; diagnosis ; Multivariate Analysis ; Neoplasm Staging ; Prognosis ; Retrospective Studies ; Survival Rate