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Public health emergencies have occurred frequently in recent years, with the characteristics of difficult rescue and a complex environment. Helicopter emergency medical service is an effective way to deal with catastrophic events. The service can effectively shorten the transfer time taken for patient transfer between hospitals, directly send patients to the hospitals that meet requirements for clinical treatment, and avoid the possible delayed treatment caused by a secondary transfer. Helicopter emergency medical service in China is still in its infancy, and there are various problems in the actual operation. Strict whole process quality management is needed to achieve the expected outcome. The paper reviews the current situation of helicopter rescue for critically ill patients in China and suggests a set of quality management schemes (including base construction, rescue equipment allocation, rescue personnel selection, rescue system construction, and on-site rescue procedure standardization). Findings from this paper hope to provide evidence for the development of aviation rescue in China. This study is innovative and scientific.
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Laparoscopic anatomic hepatectomy (LAH) has been widely approved as an essential procedure for safety and availability, and has gradually become the mainstream method of hepatec-tomy. Through a renewed understanding of the Laennec capsule, the authors have found that there exists a natural gap between the Laennec capsule and the adjacent tissues, such as Glisson pedicles and hepatic veins. Consequently, Laennec capsule can serve as the anatomical approach for LAH. The left lobe, right anterior lobe and right posterior lobe has an independent Glisson pedicle respectively, which can be used to perform Glisson pedicle transection sectionectomy via Laennec capsule approach without damaging the liver parenchyma. The exposure of hepatic veins on the detached plane can also be achieved through this approach. Laennec capsule approach provides a new idea for laparoscopic anatomic liver sectionectomy, which is safe, reliable, convenient and highly repeatable.
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In recent years, convolutional neural network(CNN) has exhibited its promising prospect and research value in assisting the analysis of lung cancer. The CNN can automatically learn from the images to extract specific clinically relevant features. This review summarized the construction of CNN by inputting CT images for end-to-end analysis to predict lung cancer risk and the efficacy of clinical treatment, as well as the application of CNN for analyzing pathological slides of resected pulmonary nodules via inputting histopathologic images.
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Background:In the pathogenesis of chronic gastritis,the changes of biological factors can affect the physiological barrier of gastric mucosa,increase the risk of injury of intercellular junctions,leading to disruption of mucosal barrier. Aims:To investigate the expressions of occludin and zonula occluden-1 (ZO-1)in chronic gastritis and their significance. Methods:A total of 82 patients with chronic gastritis from October 2014 to October 2017 at the First People's Hospital of Xiaochang were enrolled and divided into chronic non-atrophic gastritis (CNAG)group and chronic atrophic gastritis (CAG)group according to the endoscopic biopsy pathology. Forty healthy subjects were served as normal controls. Expressions of occludin and ZO-1 were examined by immunohistochemistry. Patients positive for Helicobacter pylori (Hp) infection received eradication therapy,and expressions of occludin and ZO-1 were reexamined after Hp eradication. Results:The positivity rates of occludin and ZO-1 proteins in CNAG and CAG groups were significantly lower than those in normal control group (P＜0.05). The positivity rates of occludin and ZO-1 proteins in CNAG group were significantly higher than those in CAG group (P＜0.05). The positivity rates of occludin and ZO-1 proteins in Hp-positive CNAG patients were significantly lower than those in Hp-negative CNAG patients (P＜0.05). The positivity rate of ZO-1 protein in Hp-positive CAG patients was significantly lower than that in Hp-negative CAG patients (P＜0.05). Expressions of occludin and ZO-1 proteins showed a linear trend correlation with activity of gastric inflammation (P ＜0.05);their expressions decreased significantly with the increase in activity of inflammation. The positivity rates of occludin and ZO-1 proteins in CNAG patients increased significantly after Hp eradication (P＜0.05). Conclusions:Expressions of occludin and ZO-1 are decreased in chronic gastritis,especially in CAG,and are correlated with Hp infection and activity of gastric inflammation.
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Objective To investigate expression of PP2CE in human hepatocellular carcinoma(HCC)tissues and the clinical pathological significance,and test its sub-cellular localization in liver cells and HCC cells.Methods A total of 50 samples of HCC tissues and their para-carcinoma tissues were collected in Tongji Hospital(Wuhan).PP2CE mRNA and protein levels were detected in HCC tissues and their para-carcinoma tissues by qRT-PCR and immunohistochemistry method.Immunofluorescent assay was performed to test the sub-cellular localization of PP2CE in the cells.Results PP2CE mRNA and protein expression levels were significantly decreased in HCC tissues as compared with those in para-carcinoma tissues(both P＜0.05).Immunohistochemistry analysis found that PP2CE expression was associated with tumor size,differentiated degree,portal vein invasion and clinical stage(both P＜0.05).Immunofluorescent assay suggested that PP2CE was mainly located in the cytoplasm and perinuclear area.Conclusion PP2CE is reduced in HCC and may be implicated in the development and progression of HCC.
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Objective To analyze the coincidence of the patients with capillary electrophoresis hemoglobin A 2 increase with defi-nitely diagnosed beta thalassaemia and to investigate its application value in the diagnosis of beta thalassaemia.Methods Two hundreds and sixty outpatients and inpatients with hemoglobin A 2 increase in our hospital from May 2014 to May 2015 were per-formed the genetic testing.Results Among 260 patients with hemoglobin A2 increase ,beta thalassemia gene mutations were detec-ted in 257 cases ,the coincidence rate reached 98.85% ,and the common 17 beta thalassemia gene mutations were not detected in the other 3 cases ,follow-up further detection of rare beta thalassaemia gene and beta globin gene sequencing was performed ,1 case of SEA-HPFH βdeletion type was found ,1 case was Taiwaneseβdeletion type and 1 case was Codon 89-93(-AGT GAG CTG CAC TG) heterozygous mutation ,it was verified that 3 cases of hemoglobin A2 increase without detecting 17 kinds of common beta thalassemia gene mutations were still beta chain mutation occurrence or big fragment deletion.At the same time ,among 257 speci-mens of beta thalassemia gene mutations ,42 cases were compound alpha thalassaemia ,accounting for 16.34% of beta thalassaemia. Conclusion Capillary electrophoresis hemoglobin A2 increase can provide a fast and accurate basis for beta thalassemia diagnosis , but which can not rule out the possibility of compoound alpha thalassaemia ,when the patient's hemoglobin A2 is increased ,alpha and beta thalassaemia genetic diagnosis should be simultaneously carried out.
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Objective To investigate the clinical efficacy of intravitreal injection of Lucentis combined with pan retinal photocoagulation and trabeculectomy for neovascular glaucoma(NVG). Methods Seventeen eyes of 15 patients with NVG were treated by 0.5 mg Lucentis intravitreal injection first. Trabeculectomy was performed 7 days later and Pan retinal photocoagulation 2 weeks later. Iris,anterior chamber angle neovascularization,intraocu?lar pressure ,and visual acuity were observed in the following 6 months. Results Iris and anterior chamber angle neovascularization were completely regressed 7 days after the injection in 17 eyes. Six months after photocoagulation, 6 eyes had different degrees of improvement in visual acuity,10 eyes no change in visual acuity and 1 eye decreased from anterior index to immediate manual. There was significant difference in pre?treatment IOP and postoperative IOP( t = 12.75 ,10.26 ,9.73 ,10.77 ,P < 0.01 ). No serious complications were observed after intravitreal injec?tion and trabeculectomy. Conclusions Intravitreal injection of Lucentis could significantly accelerate the regres?sion of iris and anterior chamber angle neovascularization ,which could improve the successful rate of trabeculecto?my and pan retinal photocoagulation. Intravitreal injection of Lucentis combined with trabeculectomy and panretinal photocoagulation is safe and effective for NVG.
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Objective To analyze prognostic factors of surgical treatment for elderly patients with non-small cell lung cancer,in order to provide a theoretic basis for improving the prognosis of patients with non-small cell lung cancer.Methods Clinical data of 145 elderly patients with non-small cell lung cancer who had received surgical treatment at our hospital from January 2012 to September 2012 were retrospectively analyzed.The survival rates of patients were investigated.Results The median survival time was 31.5 months,and 1-year,2-year and 3-year survival rates were 61.4％,45.5％ and 40％,respectively.Single factor analysis showed that lesion size,number of metastatic lymph nodes,clinical stage,pathological type and radiotherapy were among the factors affecting prognosis.Multiple COX regression analysis showed that a lesion size ＞3cm,number of lymph nodes with metastasis ＞ 2 and pathological type were independent risk factors for patient prognosis,and radiotherapy was a protective factor for prognosis.Conclusions Surgical treatment has good curative effects on non-small cell lung cancer in elderly patients.Lesion size,number of lymph nodes with metastasis,pathological type and radiotherapy are important factors affecting prognosis,and can be used for prognosis assessment.
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OBJECTIVE@#To study the relationship between the radiotherapy resistance and autophagy. To provide a theoretiacal basis for drugs that regulate autophagy to improve radiotherapy sensitivity.@*METHOD@#Flow cytometry (FCM) was performed to analyze the distribution of the cell cycle of CNE2 and CNE2/DDP cells under the action of X radiation. The expression of autopagy-specific gene Beclin1 and microtubule-associated protein light chain 3β (MAPLC3β) in CNE2 and CNE2/DDP cells was determined by real time PCR and Immumofluorescence staining.@*RESULT@#CNE2/DDP and their parental CNE2 cells produced the G2-M phase arrest under the action of X radiation. With the radiation dose increasing,The cells which in the G2-M phase were more and more (P<0. 05). The G2-M phase arrest in CNE2/DDP cells was more obvious than in CNE2 cells (P<0. 05). The expression of Beclin1 and MAPLC3β in CNE2 and CNE2/DDP cells increased under the action of X radiation. What's more, the raise was more and more obvious with the increase of the irradiation dose(P<0. 05). The expression levels of Beclin1 and MAPLC3β in CNE2/DDP was lower than that in CNE2 cells (P<0. 05).@*CONCLUSION@#Autophagic cell death may be the one manner of death in nasopharyngeal carcinoma CNE2 and CNE2/DDP cells under the action of X radiation. The radiation resistance of CNE2/DDP cells may be related to the low expression of autophagy-related genes.
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Apoptosis Regulatory Proteins , Genetics , Autophagy , Beclin-1 , Carcinoma , Cell Cycle , Cell Line, Tumor , Radiation Effects , Dose-Response Relationship, Radiation , Humans , Membrane Proteins , Genetics , Microtubule-Associated Proteins , Genetics , Nasopharyngeal Carcinoma , Nasopharyngeal Neoplasms , Genetics , Radiation Tolerance , X-RaysABSTRACT
Objective To compare the incidence of cardiopulmonary complications between treatment of video assisted thoracoscopic operation and traditional thoracotomy operation in elderly patients with non-small cell lung cancer.Methods 122 cases of elderly patients with non small cell lung cancer were treated in our hospital from Mar 2010 to Jun 2014,and randomly divided into observation group (therapeutic lobectomy by video assisted thoracoscopic operation) and control group (therapeutic lobectomy by traditional thoracotomy operation) (n=61,each).The postoperative cardiopulmonary complications and relevant indexes of cardiopulmonary function were analyzed and compared between the two groups.Results Before operation,there was no significant difference in the relevant indexes of cardiopulmonary function between the two groups (P＞0.05).After operation,the forced expiratory volume in one second (FEV1) and maximal ventilatory volume (MMV) were higher and the heart rate was lower in observation group than in control group (t=3.682,2.243,5.677,all P＜0.05).The incidence of cardiopulmonary complication was lower in observation group than in control group (13.1％ vs.27.9％,x2 =4.075,P=0.044).Conclusions Video assisted thoracoscopic operation is better for the recovery of cardiopulmonary function,and can reduce cardiopulmonary complication in elderly patients with non-small cell lung cancer.
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Objective To compare the efficacy of CO2 laser and conventional laryngeal microsurgery in the treatment of benign lesions of vocal cord (polyp of vocal cord) and precancerous lesions (leukoplakia of vocal cord) of patients. Methods A total of 60 patients with vocal cord polyps were selected, and randomly divided into two groups, each with 30 patients. Thirty patients with vocal cord leukoplakia were selected and randomly divided into two groups, each with 15 patients. One group was performed by cold instruments for lesion resection (conventional group), the other by CO2 laser for removal of diseased tissue or mucosal ablative surgery (laser group). Two groups of patients were examined by laryngostroboscope, electronic laryngoscopy, GRABS, VHI subjective ratings and objective voice analysis before operation and one week, one month and three months after operation. ResuIts The outcomes of those with vocal cord polyps in early recovery (1 week) laser group were slightly worse than the conventional group. In later recovery (1~3 months), with electronic laryngoscopy inspection, laryngostroboscope mucosal wave observation, the analysis of subjective and objective data from the two groups showed no significantly differences. For patients with vocal cord leukoplakia in early recovery (1 week), laser group slightly worse than the conventional group, in later recovery (1~3 months), there were no obvious difference between the two groups in electronic laryngoscopy inspection, laryngostroboscope mucosal wave observation, the analysis of subjective and ob_jective data. Follow -up operations, the recurrence rates in laser group was significantly lower than conventional group. ConcIusion The treatment by CO2 laser can significantly improve their pronunciation quality for vocal cord polyps and vocal cord leukoplakia patients, it has a good therapeutic effect, especially the long-term effective of vo_cal cord leukoplakia is better than conventional operation.
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Objective To evaluate results and demonstrate problems of Scandinavian total ankle replacement (STAR) in patients with ankle arthritis and clarify its role as a growing alternatives to ankle fusion.Methods Retrospectively analyzed 43 patients who had total ankle replacement from May 1999 to January 2013.All cases were evaluated with interview focusing on pain,daily activities and clinical and radiologic examinations.The average age of patients was 46 (range,35 to 56) years old.Among these cases,9 patients suffered from posttraumatic arthritis,25 osteoarthritis,5 rheumatoid arthritis and 4 avascular necrosis of the talar body.All patients complained about ankle joint pain and swelling as well as limited ROM of joint.Results Mean follow-up was 6.7 (1.5 to 12 years) years.37 cases had complete follow-up.The average preoperative ankle score was 27.0± 10.5,pain degree score was 16.5± 12.8,joint function score was 10.6±7.4,ROM score was 8.2±5.2.The average preoperative ankle score was 86.5±13.2,pain degree score was 49.5±4.5,joint function score was 19.7±9.5,ROM score was 19.2±3.2.The indicatiors compared with preoperative,postoperative differences have statistical significance.The score of postoperative Kofoed were divided into excellent 35 cases,good 1 case and poor 1 case,excellent and good rate was 97.3％.The American orthopaedic foot and ankle society (AOFAS) scoring system was improved from 40.5 preoperatively to 80.6 postoperatively.No postoperative loosening or migrating of the prosthesis was noted.Conclusion It was demonstrated that the standardized and normalized operative techniques as well as operative tools closely matched to the prosthesis could achieve favorable outcomes according to the clinical and radiographic outcomes and overall acceptable cornplication rates in the present study.STAR was a choice for the patients with advanced osteoarthritis,posttraumatic arthritis,rheumatic arthritis and avascular necrosis of the talar body.
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<p><b>OBJECTIVE</b>To investigate the effect of Fuzhenghuayu compound (FZHc) on expression of nuclear factor E2-related factor 2 (Nrf2) in hepatocytes under conditions of hepatic fibrosis using a mouse model.</p><p><b>METHODS</b>Mice were randomly assigned to a control group and a hepatic fibrosis model group. The control group was further divided into three subgroups for use as normal controls (A1), mineral oil-treated controls (A2), and FZHc-treated controls (A3); the hepatic fibrosis model group was administered carbon tetrachloride (CC14 dissolved in mineral oil and injected intraperitoneally) and further divided into four subgroups for use as 6-weeks models (B1), 10-weeks models (B2), low-dose (L)-FZHc models (C1), and high-dose (H)-FZHc models (C2). The FZHc (capsule powder diluted with double-distilled water to 0.1 g/mL) was administered via gastric perfusion to groups A3, C1, and C2 starting at week 7 of the experiment. At the end of week 6 and 10, hepatic specimens were collected and evaluated for degree of hepatic fibrosis and inflammation using routine haematoxylin-eosin staining and Masson staining. Immunohistochemical analysis was performed to measure the hepatocyte expression of Nrf2, NAD(P)H quinine oxidoreductase 1 (Nqol), a-smooth muscle actin (a-SMA) and fibronectin (FN). Real-time fluorescence quantitative PCR was used to measure Nrf2 mRNA expression. Western blotting was used to detect Nrf2 and Nqol total protein expression and Nrf2 nuclear translocation. F test, LSD test and ridit test were used for statistical analyses.</p><p><b>RESULTS</b>Compared with the B2 group (ridit value: 0.09), the model groups treated with FZHc showed significantly lower degrees of hepatic inflammation and fibrosis for both the low (C1 group, ridit value: 0.32) and high doses (C2 group, ridit value: 0.40) (F =82.927, P less than 0.05). In addition, compared with the B2 group, the model groups treated with FZHc showed significantly decreased expression of a-SMA and FN proteins, with a dose-dependent trend (by immunohistochemistry: C 1 group at the end of 10 weeks, F =77.421, 118.262, P less than 0.05; C2 group, P =0.002, 0.013) and significantly increased expression of Nrf2 and Nqol proteins (by immunohistochemistry:C1 and C2 groups at the end of 10 weeks, F =182.537, 75.615, P less than 0.05 and by westen blotting: F =45.664, 127.673, P less than 0.05), which also showed a dose-dependent trend (C2 group, P =0.000, 0.014; 0.005, 0.014). Western blotting also indicated that the amount of nuclear transported Nrf2 was higher in the C1 and C2 groups at the end of 10 weeks (vs. B2 group, F =94.787, P less than 0.05), and the amount of nuclear transported Nrf2 was significantly higher in the C2 group (vs. C1 group, P =0.044). Nrf2 mRNA expression was significantly higher in the C1 group than in the B2 group (F =3230.105, P less than 0.05), and the C2 group had more substantially increased expression (P =0.001); there was no statistical difference found between groups B1 and B2 (P =0.094).</p><p><b>CONCLUSION</b>Fuzhenghuayu compound increased the expression of Nrf2 mRNA and protein under conditions of hepatic fibrosis in mice and stimulated Nrf2 nuclear transport, as well as increased expression of the Nrf2 target gene Nqol that is known to suppress activation of hepatic stellate cells and decrease the deposition of FN. Therefore, Fuzhenghuayu compound may ameliorate hepatocyte injury in hepatic fibrosis in mice by exerting an antihepatic fibrosis effect.</p>
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Animals , Drugs, Chinese Herbal , Pharmacology , Female , Hepatocytes , Metabolism , Liver Cirrhosis, Experimental , Metabolism , Mice , Mice, Inbred Strains , NAD(P)H Dehydrogenase (Quinone) , Metabolism , NF-E2-Related Factor 2 , MetabolismABSTRACT
MicroRNAs (miRNAs) have recently been recognized to have a role in human orthopedic disorders. The objective of our study was to explore the expression profile and biological function of miRNA-17-5p (miR-17-5p), which is well known to be related to cancer cell proliferation and invasion, in osteoblastic differentiation and in cell proliferation. The expression levels of miR-17-5p in the femoral head mesenchymal stem cells of 20 patients with non-traumatic osteonecrosis (ON) and 10 patients with osteoarthritis (OA) were examined by quantitative reverse transcription-PCR (qRT-PCR). Furthermore, the interaction between miR-17-5p and SMAD7 was observed. We found that in non-traumatic ON samples the level of mature miR-17-5p was significantly lower than that of OA samples (P=0.0002). By targeting SMAD7, miR-17-5p promoted nuclear translocation of beta-catenin, enhanced expression of COL1A1 and finally facilitated the proliferation and differentiation of HMSC-bm cells. We also demonstrated that restoring expression of SMAD7 in HMSC-bm cells partially reversed the function of miR-17-5p. Together, our data suggested a theory that dysfunction of a network containing miR-17-5p, SMAD7 and beta-catenin could contribute to ON pathogenesis. The present study prompts the potential clinical value of miR-17-5p in non-traumatic ON.
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Adult , Base Sequence , Bone Morphogenetic Protein 2/metabolism , Cell Differentiation , Cell Line , Cell Proliferation , Female , Gene Expression Regulation , Humans , Male , MicroRNAs/genetics , Middle Aged , Osteoarthritis/genetics , Osteoblasts/cytology , Osteogenesis , Osteonecrosis/genetics , Signal Transduction , Smad7 Protein/genetics , beta Catenin/metabolismABSTRACT
Objective To investigate the mutation screening of the GJB3,GJB2,mtDNA 1555 A>G and SLC26A4 gene in Hainan Pronive population with non-syndromic hearing impairment.Methods PCR were performed with one pair of primer in the coding sequence of GJB3,GJB2,mtDNA 1555 A>G and SLC26A4 gene.Bidirectional sequencing of PCR products was subsequently applied in 429 patients with hearing loss.Results 55 patients gene mutation of 429 patients were found. The point mutation in mtDNA was found in 5 patients (1.1 7%).1 5 5 5 A>G mutation of mtDNA was found in 4 patients. 1494 C>T mutation of mtDNA was found in one patients.GJB2 gene mutation was found in 25 patients (5.83%).235 del C mutation of GJB2 gene was found in 9 patients.235 del C/GJB2 299 del AT mutation was found in two patients.235 del C mutation was found in 10 patients.176 del 16 mutation was found in 4 patients.SLC26A4 mutation was found in 22 patients (5.13%).IVS7-2 A>G mutation of SLC26A4 was found in 4 patients.2168 A>G mutation of SLC26A4 was found in one patient.IVS7-2 A>G mutation was found in 12 patients.2168 A>G mutation was found in 5 patients.538 C>T mutation of GJB3 gene was found in 3 patient.IVS7-2A>G mutation and 2168 A>G muation of SLC26A4 gene was found in 4 of 22 EVA patients.Conclusion GJB2 gene and SLC26A4 gene have revealed responsible genes for Hainan deafness patients.
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Cone beam CT(CBCT)data of 4 550 impacted mandibular third molars were divided into 6 groups by the direction of teeth im-paction.Analyzed by SPSS 19.0 statistical package and Pearson Chi-square Test,the incidence of disto-lingual roots was 5.38% and was various with different impation direction.
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Objective To evaluate the clinical indications and outcomes of dynesys neutralization system in the treatment of degenerative lumbar diseases.Methods From January 2007 to December 2011,102 consecutive patients with degenerative lumbar spine diseases underwent posterior decompression and internal fixation with the Dynesys dynamic neutralization system.Among them,69 patients were followed up,including 39 males and 30 females,aged from 30 to 62 years (average,44 years).The series of cases were composed of 24 cases of lumber disc herniation,35 cases of degenerative spinal stenosis,10 cases of degenerative changes of lumbar discs.Results The mean follow-up period was 35 months (range,6-44 months).The visual analogue scale (VAS) score decreased from preoperative 8.6 (range,6-9) to postoperative 2.8 (range,0-5),and the Oswestry disability index (ODI) improved from preoperative 73％ (range,30％-91％) to postoperative 30％ (range,0-61％).There were no implant failure or infection.According to the evaluation criteria of surgical treatment for low back pain,which was established by the Chinese Orthopaedic Association,the result was excellent in 53 patients,good in 12 patients,fair in 4 patients and poor in 1 patient.Conclusion The Dynesys dynamic neutralization system is effective in the treatment of degenerative lumbar spine disease,which can reserve the range of motion of stabilized segments,prevent degeneration of adjacent segments and improve clinical outcomes.
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Objective To evaluate the clinical effects and experiences of short stem ceramic-on-ceramic total hip arthroplasty in the treatment of young and middle-aged patients with femoral head necrosis.Methods From December 2009 to March 2011,40 patients with femoral head necrosis were treated primarily with short stem ceramic-on-ceramic hip arthroplasty (43 hips) through posterior-lateral or anterior-lateral approach.There were 23 males,17 females； with the mean age of 40.5 years (range,27-55 years).All cases were stage Ⅳ or more according Steinberg stage.The patients were followed up at the 3,6,12 months after operation,and then once each year.Standard X-ray films were taken at the follow-ups.Femoral prosthesis subsidence was assessed through X-ray films.Harris scores system and WOMAC Osteoarthritis Index were recorded before and after operation to evaluate clinical effects of surgery.Results Thirty-eight patients (41 hips) were followed up for 21-36 months,with an average of 31.3 months.The femoral stem subsided 0.68±2.90 mm at the last follow-up.After operation,hip pain of patients was relieved obviously.The Harris score improved from 38.7±12.1 (15-66) preoperatively to 95.2±4.49 (83-100) postoperatively,WOMAC Index from 66.7±12.0 (49-94) to 12.8±5.6 (0-24).During follow-up period,there was no serious complication such as femoral neck fracture,infection of wound,pulmonary embolism,et al.No dislocation,implant prosthesis failure and infection were observed.Conclusion The short stem hip arthroplasty preserves bone stock to a great extent.The short stem implant showed a good stability and osseous integration.The wear rate of ceramic-on-ceramic bearing surface is extremely low.Short stem hip arthroplasty plus ceramic-on-ceramic bearing surface might be a good option for the young and middle-aged patients with femoral head necrosis.