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Chronic refractory wound (CRW) is one of the most challengeable issues in clinic due to complex pathogenesis, long course of disease and poor prognosis. Experts need to conduct systematic summary for the diagnosis and treatment of CRW due to complex pathogenesis and poor prognosis, and standard guidelines for the diagnosis and treatment of CRW should be created. The Guideline forthe diagnosis and treatment of chronic refractory wounds in orthopedic trauma patients ( version 2023) was created by the expert group organized by the Chinese Association of Orthopedic Surgeons, Chinese Orthopedic Association, Chinese Society of Traumatology, and Trauma Orthopedics and Multiple Traumatology Group of Emergency Resuscitation Committee of Chinese Medical Doctor Association after the clinical problems were chosen based on demand-driven principles and principles of evidence-based medicine. The guideline systematically elaborated CRW from aspects of the epidemiology, diagnosis, treatment, postoperative management, complication prevention and comorbidity management, and rehabilitation and health education, and 9 recommendations were finally proposed to provide a reliable clinical reference for the diagnosis and treatment of CRW.
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Objective To explore the clinical effect of bone grafting in the injured vertebrae combined with pedicle screw-rod system assisted with drugs in treating lumbar vertebral compression fracture in the elderly.Methods A retrospective case-control study was carried out to analyze the clinical data of 48 cases of lumbar vertebral compression fracture in the elderly admitted to the Union Hospital between October 2015 and October 2018.There were 34 males and 14 females,aged 60-78 years [(62.8 ± 2.5) years].Segment of injury was L1 in 37 cases,L2 in 7,L3 in 2,and L4 in 4.There were 20 cases in bone grafting group involving 15 males and five females,aged from 60 to 78 years [(63.7 ± 2.1)years].There were 28 cases in non-bone grafting group involving 19 males and nine females,aged from 60 to 75 years [(62.4 ± 2.9) years].The Frankel scale in bone grafting group was grade D in 15 cases and grade E in 5,and in non-bone grafting group was grade D in 18 cases and grade E in 10.All the cases were treated by pedicle screw fixation combined with antiosteoporosis drugs,and the bone grafting group were treated by bone grafting via the injured vertebrae,but the other group were not.The intraoperative blood loss and operation time for each segmental vertebrae were recorded.The visual analogue scale (VAS) before operation and one year after operation,the bone healing at three months and one year postoperatively were recorded.The compression rate of the injured vertebrae at operation,at one day and one-year postoperatively as well as the height loss of the injured vertebrae at postoperative one year were measured.Spinal cord injury was also evaluated by Frankel scale.Wound healing,lower limb thrombosis,lung infection and ulcer were observed.Results All the cases were followed up,with duration for 12-25 months [(16.2 ±3.4) months] in bone grafting group and 15-24 months [(17.5 ± 5.4) months] in non-bone grafting group (P ＞ 0.05).The blood loss was (240 ± 70) ml in bone grafting group and (210 ± 65) ml in non-bone grafting group (P ＞ 0.05).Screw implantation time for each segment was (38.5 ±9.6)minutes in bone grafting group and (30.5 ±5.4)minutes in non-bone grafting group (P ＜ 0.05).The VAS was (7.5 ± 1.8)points preoperatively and (1.5 ± 0.7)points at one year postoperatively in bone grafting group,while (7.8 ± 1.4) points and (2.9 ± 1.2) points in non-bone grafting group,with significant difference between the two groups at one year postoperatively (P ＜ 0.05).The fracture healing rate was 85％ (17/20) and 95％ (19/20) at three months and one year postoperatively in bone grafting group,while 64％ (18/28) and 86％ (24/28) in non-bone grafting group,with no statistical difference between the two groups (P ＞ 0.05).No significant difference was found in compression rate of the injured vertebral height between the two groups before and after operation (P ＞ 0.05).The height loss rate of the injured vertebrae was 3％ (2％,4％) at one year postoperatively in bone grafting group and 6％ (5％,8％) in non-bone grafting group (P ＜0.05).The Frankel scale was all Grade E postoperatively.During the follow-up,no lower limb thrombosis,lung infection or ulcer occurred.One case had bone non-union in bone grafting group and four in non-bone grafting group (P ＞ 0.05).Conclusion For lumbar vertebral compression fracture in the elderly,bone grafting in the injured vertebrae combined with pedicle screw-rod system assisted with drugs is significantly better in recovering and maintaining the injured vertebrae height,relieving the pain and promoting the bone healing,although the screw implantation time is prolonged.
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Objective@#To explore the clinical effect of bone grafting in the injured vertebrae combined with pedicle screw-rod system assisted with drugs in treating lumbar vertebral compression fracture in the elderly.@*Methods@#A retrospective case-control study was carried out to analyze the clinical data of 48 cases of lumbar vertebral compression fracture in the elderly admitted to the Union Hospital between October 2015 and October 2018. There were 34 males and 14 females, aged 60-78 years [(62.8±2.5)years]. Segment of injury was L1 in 37 cases, L2 in 7, L3 in 2, and L4 in 4. There were 20 cases in bone grafting group involving 15 males and five females, aged from 60 to 78 years [(63.7±2.1)years]. There were 28 cases in non-bone grafting group involving 19 males and nine females, aged from 60 to 75 years [(62.4±2.9)years]. The Frankel scale in bone grafting group was grade D in 15 cases and grade E in 5, and in non-bone grafting group was grade D in 18 cases and grade E in 10. All the cases were treated by pedicle screw fixation combined with antiosteoporosis drugs, and the bone grafting group were treated by bone grafting via the injured vertebrae, but the other group were not. The intraoperative blood loss and operation time for each segmental vertebrae were recorded. The visual analogue scale (VAS) before operation and one year after operation, the bone healing at three months and one year postoperatively were recorded. The compression rate of the injured vertebrae at operation, at one day and one-year postoperatively as well as the height loss of the injured vertebrae at postoperative one year were measured. Spinal cord injury was also evaluated by Frankel scale. Wound healing, lower limb thrombosis, lung infection and ulcer were observed.@*Results@#All the cases were followed up, with duration for 12-25 months [(16.2±3.4)months] in bone grafting group and 15-24 months [(17.5±5.4)months] in non-bone grafting group (P>0.05). The blood loss was (240±70)ml in bone grafting group and (210±65)ml in non-bone grafting group (P>0.05). Screw implantation time for each segment was (38.5±9.6)minutes in bone grafting group and (30.5±5.4)minutes in non-bone grafting group (P<0.05). The VAS was (7.5±1.8)points preoperatively and (1.5±0.7)points at one year postoperatively in bone grafting group, while (7.8±1.4)points and (2.9±1.2)points in non-bone grafting group, with significant difference between the two groups at one year postoperatively (P<0.05). The fracture healing rate was 85% (17/20) and 95% (19/20) at three months and one year postoperatively in bone grafting group, while 64%(18/28) and 86%(24/28) in non-bone grafting group, with no statistical difference between the two groups (P>0.05). No significant difference was found in compression rate of the injured vertebral height between the two groups before and after operation (P>0.05). The height loss rate of the injured vertebrae was 3% (2%, 4%) at one year postoperatively in bone grafting group and 6% (5%, 8%) in non-bone grafting group (P<0.05). The Frankel scale was all Grade E postoperatively. During the follow-up, no lower limb thrombosis, lung infection or ulcer occurred. One case had bone non-union in bone grafting group and four in non-bone grafting group (P>0.05).@*Conclusion@#For lumbar vertebral compression fracture in the elderly, bone grafting in the injured vertebrae combined with pedicle screw-rod system assisted with drugs is significantly better in recovering and maintaining the injured vertebrae height, relieving the pain and promoting the bone healing, although the screw implantation time is prolonged.
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Objective To explore the efficacy of proximal femur locking plate(PFLP) for the treatment of unstable femoral intertrochanteric fractures in elderly patients.Methods Data of 120 cases of patients with unstable femoral intertrochanteric fractures who were treated by PFLP were retrospectively analyzed.There were 56 males and 64 were females,aging from 62 to 78 year-old (average,69.4 year-old).85 cases were left hip,and 35 cases right hip.According to AO fracture classification,there were 12 cases of A2.2,23 A2.3,34 A3.1,29 A3.2,and 22 A3.3.According to Evans intertrochanteric fractures classification:there were 93 cases of type Ⅲ,19 type Ⅳ,and 8 type Ⅴ.Operation time,length of hospital stay,fracture healing time,postoperative complications and hip joint Harris scores were recorded.Results All patients were followed up for 8-14 months (average,12.4 months).Their operating time were 51-80 min (average,63.1 min);X-ray exposure were 8-15 times (average,11.6 times);intraoperative blood loss were 70-120 ml (average,92.7 ml);postoperative drainage volume were 50-100 ml (average,61.7 ml),and length of hospital stay were 7-14 d (average,10.2 days).The healing time ranged from 12 to 32 weeks (20.4 weeks average).14 cases had delayed union,and healing time was 8-10 months.In addition,4 cases had deep vein thrombosis (after thrombolysis therapy the vein was recanalized);2 had internal fixation broken,who were then treated with PFNA Ⅱ,and bone healed after 6 months;5 had hip varus,who were then treated via hip replacement,and no hip prosthesis fracture were found.No other complications occurred in the remaining patients.At the latest follow-up,according to Harris hip score:there were 38 cases with excellent results,71 good,9 fair,and 2 poor,and the rate of excellent and good was 90.8％ (109/120).Conclusion PFLP for the treatment of unstable femoral intertrochanteric fractures has advantages of less invasion,less complication,reliable fixation and high fracture healing rate,thus it is suitable for unstable intertrochanteric fractures in elderly patients.
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Objective To analyze the related factors of femoral head necrosis after internal fixation operation of femoral neck fracture.Methods Clinical data of 524 patients with femoral neck fracture who underwent internal fixation surgery between January 2012 and January 2015 were retrospectively analyzed.Taking the femoral head necrosis as an observable indicator,the clinical data of postoperative femoral head necrosis and those other patients who were treated at the same period were compared.Whether the clinical factors (gender,age,surgical reduction type,fracture type,quality of reduction,post-injury operation time,loading time after operation,and whether to withdraw internal fixation) were in correlation with postoperative femoral head necrosis was analyzed by univariate analysis.Then the statistically significant indicators were integrated into logistic regression analysis to determine the related factors of femoral head necrosis.Results According to inclusion and exclusion criteria,the study group consisted of 212 cases,including 94 males and 118 females;the follow-up time was 2-5 years,and the average follow-up time was 3.6±1.6 years.There were 46 cases with femoral head necrosis and 166 cases without femoral head necrosis after operation.The rate of femoral head necrosis was 21.7％ (46/212).The femoral head necrosis group included 46 cases with 21 males and 25 females;20 cases below 60 years old and 26 cases above 60 years old;17 cases using open reduction and 29 cases using closed reduction;6 cases belong to type Ⅰ/Ⅱ and 40 cases belong to type Ⅲ/Ⅳ according to Garden classification;16 cases got satisfactory reduction while 30 cases with unsatisfactory reduction;30 cases below 48 h and 16 cases above 48 h on post-injury operation time;17 cases below 3 months and 29 cases above 3 months on post-operation loading time;22 cases with internal fixation removal and 24 cases without internal fixation removal.The femoral head without necrosis group included 166 cases with 73 males and 93 females;84 cases below 60 years old and 82 cases above 60 years old;69 cases using open reduction and 98 cases using closed reduction;120 cases belong to type Ⅰ/Ⅱ and 46 cases belong to type Ⅲ/Ⅳ according to Garden classification;160 cases got satisfactory reduction while 6 cases with unsatisfactory reduction;119 cases below 48 h and 47 cases above 48 h on post-injury operation time;70 cases below 3 months and 96 cases above 3 months on post-operation loading time;74 cases with internal fixation removal and 92 cases without internal fixation removal.Univariate x2 analysis suggested that fracture type and quality of reduction were associated with postoperative femoral head necrosis.Other clinical factors (gender,age,surgical reduction type,post-injury operation time,loading time after operation and whether to remove internal fixation or not) were not associated with postoperative femoral head necrosis.The multivariate Logistic regression analysis showed fracture type and quality of reduction were significantly related to postoperative femoral head necrosis.Conclusion Femoral head necrosis after internal fixation operation of femoral neck fracture is affected by many factors.The fracture type and quality of reduction are important factors affecting femoral head necrosis after internal fixation operation of femoral neck fracture.
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Objective To observe the clinical curative effect of ten-day sequential therapy composed of omeprazole,amoxicillin,clarithromycin,levofloxacin in Helicobacter pylori (Hp) eradication.Methods 120 adult patients with positive rapid urease test of gastric mucosa were selected,they were randomly divided into the sequential group (60 cases) and control group (60 cases).The sequential group was treated with 10 d sequential therapy and control group was given 10 d standard therapy for eradication of Hp.In the two groups,patients with active ulcerative continued taking omeprazole for 4 weeks,the 14C urea breath test was taken after stopping drug,negative for Hp eradication.The clinical efficacy of two groups was observed.Results Hp eradication rate of sequential group was 94.8 ％,which was significantly higher than 79.3 ％ of the control group (x2 =6.20,P ＜ 0.05).The incidence rate of adverse reactions in the sequential group was 17.5％,which in control group was 15.0％,the difference was not significant (x2 =0.06,P ＞ 0.05).Conclusion Ten-day sequential therapy composed of omeprazole,amoxicillin,clarithromycin,levofloxacin for eradication of Hp is safe,the cure rate is high,and the adverse reaction is similar with standard therapy,it is worth the clinical promotion.
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Streptomyces S24 has broad spectrum against Aspergillus spp. in food and feed, such as Aspergillus flavus, Aspergillus niger and Asperegillus alutacells. The objective of this study was to improve the production of antifungal substances produced by S24 and to test their inhibitory effects on Aspergillus flavus. By using one-factor-at-a-time experiment and orthogonal design method, we optimized the fermentation medium. The composition of an optimized medium for the production of antifungal substances contained (g/L): starch soluble, 10; Glucose, 40; yeast extract, 8; soybean powder, 24; KH2PO4 4; and CaCO3 0.8. As a result, the productivity of antifungal substances could reach to 10 235.45 microg/mL, and this value was 2.81 times higher than that of initial medium before optimization. Additionally, inhibitory effects of the products on Aspergillus flavus were analyzed. Antagonistic tests indicated that the antifungal substances greatly inhibited mycelium growth and spores germination of Aspergillus flavus. We observed through microscope that the mycelia grew abnormally, such as contorting, bulging, vacuole increasing and the cytoplasmic contents inside effusing and the spores appeared unusual, such as gathering, deforming, cytoplasmic contents inside effusing and fracturing.
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Adsorption , Antifungal Agents , Chemistry , Pharmacology , Aspergillus flavus , Aspergillus niger , Culture Media , Chemistry , Food Contamination , Streptomyces , Chemistry , MetabolismABSTRACT
Streptomyces S24 has broad spectrum resistance to the Aspergillus in food and feed, such as Aspergillus flavus, Aspergillus niger, Asperegillus alutacells and so on. We studied the adsorption and desorption properties of antifungal substance from Streptomyces S24 on macroporous resins, screened the best elution solution and also investigated some physical and chemical characters of antifungal substance by determining the antifugal activity using oxford plate assay system. According to the analysis results, AB-8 resin offered the best adsorption and desorption capacity for antifungal substance and its saturated absorption capacity was 7.0822 x 10(4) microg/g, the optimal elution solution was 85% acetone and the dynamic desorption rate could reach 93.82%. The antifungal substance was stable to heat and alkali, not sensitive to organic solvents, and sensitive to ultraviolet rays and acid. Based on its ultraviolet spectrometry, the antifungal substance was identified as heptaene macrolide antibiotic.