BACKGROUND:Manual reduction for external fixation of distal radius fractures can achieve good outcomes.
OBJECTIVE:To carry out the bibliometric analysis on manual reduction for external fixation of distal radius fractures.
METHODS:Literatures concerning reduction for external fixation of distal radius fractures were retrieved in CNKI database from 2003 to 2012. The keywords were“external fixation;distal radius fractures”. Duplicate and irrelevant articles were eliminated, and a total of 408 articles were retrieved. A bibliometric analysis of these 408 articles was performed in terms of publishing time and number, subject categories, source journals, research institutions, times cited and download frequency.
RESULTS AND CONCLUSION:Literatures concerning manual reduction for external fixation of distal radius fractures exhibit an upward trend in number. In 2012, there were 85 relevant articles. In the past 10 years, 18 relevant articles have been published in Chinese Journal of Traditional Medical Traumatology&Orthopedics, which is the most. There are not many relevant studies in various research units, only 1-7 articles published per unit, and five articles are funded.

Objective To explore the shape change characteristics of Oncomelania hupensis snail shell after the snails being passively migrated into Shandong intake area of the South-to-North Water Diversion Project. Methods The snails raised on the Dushan island in Weishan Lake region were captured,and 115 the first filial generation snails and 107 the second filial generation ones were selected. The length and width of shells and apertures,and the labial ridge thickness of those snails were measured,the longitudinal rib number of snail spiral was counted,and 107 parental snails were chosen as controls. Results The labial ridge thickness of the filial generation snail was significantly reduced with the increase of algebras,and the labial ridge thickness among the 3 generations had a significant difference(P<0.01). Both the length of snail shell and the width of snail apertures were de-creased,while the width of snail shell,the length of snail apertures,the multiplication product of snail aperture’s length and width and the longitudinal rib number of snail spiral were all increased. Conclusion The body size of Oncomelania snails in Weishan Lake region becomes smaller,and their shells become thinner,which indicates that the environment of the lake region is not suitable for snail breeding,and the snails have natural decay tendency with the extension of time.

PurposeHeroin addiction is a chronic and recurrent functional brain disease, there are some functional changes in specific brain regions, but the network character remains unclear. The aim of this paper is to explore the network character of brain resting-state functional network in heroin addicts, to identify the potential neuromechanism of heroin addiction from the perspective of brain network.Materials and Methods Thirty heroin addicts (HA group) and twenty-nine healthy controls (control group) underwent resting-state functional MRI scanning using GE 3.0T MRI scanner. The brain functional networks were constructed based on graph theory, the small-world properties and node properties were calculated and compared between the two groups, the correlation between the total dosage of heroin and node degree was analyzed.Results Compared with control group, the small world characteristics of HA group was altered with statistically significant difference (P<0.05, corrected by false discovery rate); the node degrees in orbit frontal regions increased, while those in occipital brain regions decreased (P<0.05, corrected by false discovery rate). No correlation was found in HA group between node degree and the total dosage of heroin.Conclusion These results suggest that topology of functional brain networks were altered in heroin addicts which tends to random networks; increased motivational driving to the salience of drug and decreased visuospatial attention in heroin addicts may provide a strategy for identifying the neuromechanism of heroin addiction.

Objective To investigate the epidemiological and molecular virological characteristics in HBV-infected patients with copositive HBsAg and anti-HBs.Methods HBV serological markers were analyzed in 52 070 specimens.The epidemiological characteristics of HBsAg and anti-HBs simultaneously positive patients (the experimental group) and HBsAg positive and auti-HBs negative patients (the control group) were compared.The S protein of HBV coding region was amplified by semi-nested PCR and sequenced.The statistical differences between the two groups were compared in different gene regions,genotypes and different clinical diagnosis.Results HBsAg was positive in 20.40％ (10 621/52 070) of all specimens.In the patients with positive HBsAg,2.48％ (263/10 621) was positive anti-HBs.The prevalence of co-positive HBsAg and auti-HBs was higher in aged 0 to 9 years and greater than or equal to 80 years than that in other age,and the prevalence of positive HBsAg and negative anti-HBs was completely opposite.The mutation rate of S protein in the experimental group was significantly higher than that in the control group (1.52％ vs 0.81％,P ＜0.01) with the mutation in the major hydrophilic region (MHR) (1.68％ vs 0.57％,P ＜0.01).The mutation rates of S protein of HBV carriers,chronic hepatitis B (CHB) patients and patients with liver cirrhosis (LC) in the experimental group were significantly higher than those in the control group (1.47％ vs 0.65％,1.28％ vs 0.84％,2.21％ vs 0.44％,P ＜0.05,respectively),except for the patients with hepatocellular carcinoma (HCC) (1.97％ vs 2.21％,P ＞ 0.05).Conclusion Co-positive HBsAg and anti-HBs in HBV-infected patients was more common in HBsAg positive patients aged 0 to 9 years and greater than or equal to 80 years than the others.Coexistence of HBsAg and anti-HBs in HBV-infected patients may relate to immune escape caused by mutation of S protein (mainly MHR).The mutation rates of S protein in the two groups of patients,co-positive HBsAg and anti-HBs and the positive HBsAg combined with negative anti-HBs,were associated with the stage of liver disease.

To understand the possibility of schistosomiasis transmission on the East Route Project of the South-to-North Water Diversion Project, a survey of endemic status of schistosomiasis in Weishan Lake area was conducted. A cluster sampling of 2086 boatmen were screened with DDIA Kit, and the positive ones were examined with Kato-Katz technique. Meanwhile, a questionnaire survey about schistosomiasis control was carried out to collect the data about the boatmen's general information and knowledge , attitude and practice (KAP). The results showed there were no schistosomiasis patients. However, there exist potential risk factors for schistosomiasis transmission because of the bad hygiene habits and the poor knowledge of schistosomiasis prevention in boatmen.

Objective To analyze the blood perfusion characteristics of retroperitoneal benign and malignant tumors by real-time contrast enhanced ultrasonography and discuss its value in the differential diagnosis.Methods The study involved 42 patients with pathological evidence through surgery or needle biopsy,including 12 patients with benign retroperitoneal tumors and 30 patients with malignant retroperitoneal tumors.The blood perfusion characteristics of two groups were observed under low mechanical index after the injection of contrast ultrasound agent(SonoVue),and the changes of twodimensional ultrasonography and the time-intensity curve(TIC)were analyzed. Results During real time contrast enhancement,the different characteristics of retroperitoneal benign and malignant tumors were observed.Malignant tumors in retro peritoneum presented the pattern of ultrasound contrast agent(UCA) enhancement from center to periphery and enhanced overall uneven mainly,begin tumors presented peripheral enhancement pattern or uniformity and overall strengthening of the main.TIC curve between benign and malignant tumors displayed that contrast enhanced intensity of region of interest(P＜0.00 1),ascending slop and halftime of descending were statistically significant(P＜0.05).Conclusions Real-time contrast-enhanced ultrasonography is a valued method to provide information for the differential diagnosis in retroperitoneal benign and malignant tumors.

Objective:To compare the clinical outcomes between modified percutaneous kyphoplasty (PKP) and conventional PKP in the treatment of Kümmell disease.Methods:A retrospective cohort study was conducted of the 57 patients with single level kummell disease who had undergone PKP between January 2015 and December 2017 at Department of Spinal Surgery, Jiangmen Hospital Affiliated to Sun Yat-sen Uni-versity.Of them, 36 received modified PKP and 21 conventional PKP.In the modified PKP group, there were 24 males and 12 females with an age of 73.9 years±9.4 years and a course of disease of 2.2 months±1.5 months; the disease was located at a thorocic vertebra in 20 cases and at a lumbar vertebra in 16.In the conventional PKP group, there were 15 males and 6 females with an age of 72.6 years±11.9 years and a course of disease of 1.8 months±1.1 months; the disease was located at a thorocic vertebra in 10 cases and at a lumbar vertebra in 11.The 2 groups were compared in terms of operation time, bone cement volume, cement leakage, visual analogue scale (VAS), Oswestry disability index (ODI), anterior and middle heights and cobb angle of injured vertebra at postoperative 3 days, 1 and 3 months, and final follow-up.Results:There were no significant differences in the general clinical data between the 2 groups, showing compatibility between groups ( P>0.05).All the operations were accomplished uneventfully with no such serious complications as spinal cord nerve injury, wound infection, pulmonary embolism, bone cement poisoning reaction or death. There was no significant difference between the 2 groups in operation time or bone cement volume ( P>0.05).The rate of cement leakage in the modified PKP group [33.3%(9/27)] was significantly lower than that [52.4%(11/21)] in the conventional PKP group ( P<0.05).There were no significant differences be-tween the 2 groups in VAS, ODI, anterior or middle height of injured vertebra or cobb angle at postoperative 3 days or one month ( P>0.05), but the postoperative values were improved compared to the preoperative ones.At postoperative 3 months and final follow-up, the modified PKP group was significantly better in all the indexes than the conventional PKP group ( P<0.05). Conclusion:Compared with conventional PKP, the modified PKP may lead to better outcomes for Kümmell disease.

BACKGROUND AND OBJECTIVEBronchopulmonary carcinoid (BPC) account for less than 2% of all primary lung malignant tumors, but few related studies were reported. The aim of this study is to analyze this rare disease's clinicopathological characteristics.

METHODSThe clinical data of 28 patients with BPC in Cancer Center of Sun Yat-sen University, from January 1994 to June 2009, were enrolled into retrospective analysis. First, the corresponding paraffin blocks reexamined, slice up and stained, multiple pathologists re-consulted, and its subsets (typical carcinoid, TC; atypical carcinoid, AC) defined. Second, the clinical characteristics and immunohistochemical markers and its relationship with prognosis were analyzed.

RESULTSFirst, the 5-year survival for overall and TC, AC was 56% and 70%, 41% respectively in 28 cases. The markers CD99, Bcl-2 and Ki-67 expression correlated significantly with the BPC subsets (P = 0.017, P = 0.043, and P = 0.033 respectively). Further univariate analysis revealed that advanced TNM staging (P = 0.037), lymph node metastasis (P = 0.001) and Ki-67 nucleolus's positive expression (P = 0.009) are poor prognostic factors. Second, the overall, TC, AC 5-year survival rate was 73%, 83%, 57% respectively in 20 cases underwent the radically surgical resection. Further univariate analysis revealed that AC subset (P = 0.013), lymph node metastasis (P = 0.004) and Ki-67 nucleolus's positive expression (P = 0.006), advanced TNM staging (P = 0.047) are poor prognostic factors in this 20 cases. Third, as univariate analysis, local recurrence and metastasis (n = 4) correlate significantly with Ki-67 nucleolus's and Bcl-2 positive expression (P = 0.027, 0.045, respectively).

CONCLUSIONThe prognosis of BPC was better than other types of primary lung cancer. Ki-67, Bcl-2 high expression and advanced TNM staging are the poor recurrence and prognostic factors of BPC. The radical surgery remains the treatment of choice for resectable candidates in BPC as NSCLC.

Adult ; Carcinoid Tumor ; mortality ; pathology ; therapy ; DNA-Binding Proteins ; analysis ; Female ; Humans ; Immunohistochemistry ; Ki-67 Antigen ; analysis ; Lung Neoplasms ; mortality ; pathology ; therapy ; Male ; Middle Aged ; Prognosis ; Proto-Oncogene Proteins c-bcl-2 ; analysis ; Retrospective Studies ; Transcription Factors

OBJECTIVETo investigate the feasibility and short-term efficacy of laparoscopic resection of primary localized gastric gastrointestinal stromal tumors (GIST) by comparing with open surgery.

METHODSClinicopathological data of 167 gastric GIST patients undergoing operation in Zhongshan Hospital from June 2008 to December 2013 were retrospectively analyzed, among whom 55 received laparoscopic surgery and 112 underwent open surgery for primary local gastric GIST. Efficacy of different size and different location of GIST was compared between laparoscopic and open groups.

RESULTSThere was no conversion to open surgery in laparoscopy group. Compared with open surgery, laparoscopic resection for gastric GIST smaller than 5 cm or located at anterior wall, greater curvature, lesser curvature, was associated with similar operation time(P>0.05), but less blood loss, shorter post-hospital stay or flatus time(all P<0.05). The operative outcomes were similar between laparoscopic and open resection for gastric GIST bigger than or equal to 5 cm or located at posterior wall(all P>0.05), except the longer operation time in laparoscopy group(P<0.05). The incidence of postoperative complication did not differ between two groups. Laparoscopic group had 2 patients with gastroparesis and open group had 2 gastroparesis, 2 pulmonary infection, and 1 poor wound healing(all P>0.05), which all recovered after conservative treatment. During 7 to 84 months(median 35) of follow-up, no recurrence or hepatic metastasis was found in laparoscopy group, and 3 hepatic metastases in open group. There was no significant difference of recurrence-free survival between two groups(P>0.05).

CONCLUSIONLaparoscopic resection for gastric GIST is safe and effective in selected patients, especially for those with tumors smaller than 5 cm, or located at anterior wall, greater curvature, lesser curvature, whose short-term outcomes are better than open resection.

OBJECTIVE: To explore the effectiveness of arthroscopic treatment of scaphoid fracture nonunion with bone graft and Kirschner wire combined with screw fixation. METHODS: The clinical data of 14 patients with scaphoid fracture nonunion who met the selection criteria between February 2021 and September 2022 were retrospectively analyzed. There were 13 males and 1 female with an average age of 32 years ranging from 17 to 54 years. The time from injury to operation ranged from 6 to 15 months, with an average of 9.6 months. According to the Slade-Geissler classification of scaphoid fracture nonunion, there were 3 cases of grade Ⅲ, 8 cases of grade Ⅳ, and 3 cases of grade Ⅴ. The preoperative visual analogue scale (VAS) score was 5.9±1.0, and the modified Mayo wrist score was 53.2±9.1. There were 2 cases of scaphoid nonunion advanced collapse, both of which were stage Ⅰ. All patients were treated with arthroscopic bone graft and Kirschner wire combined with screw fixation, and the fracture healing was observed by X-ray film monthly after operation, and the effectiveness was evaluated by VAS score and modified Mayo wrist score before and after operation. RESULTS: All patients were followed up 6-14 months, with an average of 8.4 months. All fractures healed in 4-8 months, with an average of 6.3 months. The postoperative pain symptoms and wrist function of the patients significantly improved when compared with those before operation, and the VAS score at last follow-up was 2.4±1.3, and the modified Mayo wrist score was 87.1±6.7, which were significantly different from those before operation ( t=12.851, P<0.001; t=-14.410, P<0.001). According to the modified Mayo wrist evaluation, 9 cases were excellent, 3 cases were good, and 2 cases were fair. CONCLUSION Arthroscopic bone graft and Kirschner wire combined with screw fixation is an effective surgical method for the treatment of scaphoid fracture nonunion.
Male ; Humans ; Female ; Adult ; Fractures, Bone/surgery* ; Bone Wires ; Scaphoid Bone/injuries* ; Retrospective Studies ; Fracture Fixation, Internal/methods* ; Fractures, Ununited/surgery* ; Wrist Injuries/surgery* ; Bone Screws ; Hand Injuries ; Treatment Outcome