Gender gap-Gender-specific development in the field of obstetrics and gynecology in Germany in the last 20 years.

Background: Gender Gap refers to differences between men and women in terms of access to medical education, career development, and leadership positions in medical practice and research. Although women now make up most medical school graduates in many countries, they are often underrepresented in higher positions. Objective: The aim of this study is therefore to analyze the gender-specific development in the field of Obstetrics and Gynecology in Germany over the past 20 years and to survey the current status quo. Materials and methods: An narrative review was carried out on the development of female graduates of human medicine, the proportion of women in contract medical care and clinical care, as well as the gender-specific evaluation of obtaining a gynecological/obstetric additional qualification. habilitation figures in the field of Obstetrics and Gynecology were evaluated about gender distribution. All data were received from federal institutes. Results: A total of 46.7% (n = 95,234) of all inpatient doctors were female. A total of 46.7% (n = 95,234) of the physicians in hospitals were female. A total of 46% (1,832/3,958) were the portion of females as assistant physicians, 39.8% (n = 45.551) as specialists, 35.3% (n = 18789) as senior physicians, 25.1% (n = 2394) as first senior physicians and 25% (n = 10) as chief physicians in hospital. A total of 64.6% (n = 3958) of the physicians in Obstetrics and Gynecology were female. A total of 46% (1,832/3,958) were the portion of females as assistant physicians, 64.6% (n = 3958) as specialists, 65.0% (n = 1919) as senior physicians, 26.4% (n = 207) first senior physicians and 25% (n = 10) as chief physicians in Obstetrics and Gynecology. Discussion: The problem with the gender gap in medicine, does not seem to be access to teaching or starting a residency. But in the functions with increasing responsibility and management functions, e.g., as senior physicians, women are already rarely seen. In Obstetrics and Gynecology, too, there is a shortage of women in leading positions, despite the relatively high numbers, for example as senior physicians. Factors like maternity and establishing a family are points mentioned therefore, but also stereotypes seem to be considerable facts. Conclusion: However, it is important to recognize the need for more women in higher positions in medicine and actively work to encourage more women to choose a career in medicine.

Students' and lecturers' perspectives on the implementation of online learning in medical education due to COVID-19 in Germany: a cross-sectional pilot study.

Background: During the coronavirus disease 2019 (COVID-19) crisis, many things changed in universities around the world. In-person learning was not possible. Instead, courses were offered in digital form. The sudden change posed enormous challenges to universities, students, and teachers. The aim of this study was to investigate the disadvantages as well as the advantages and opportunities of digital learning. Objective: This study investigated the evaluation of an elective module by medical students and teachers in the traditional in-person and virtual teaching forms during the COVID-19 pandemic. Methods: Using the elective module "Sports Medicine," which includes both lectures and practical units, the opinions of the medical students about conventional teaching compared to digital instruction were evaluated. In the winter semester of 2019/2020, all classes were taught face-to-face but had to be switched to virtual teaching in the summer semester of 2020 on an ad hoc basis due to the pandemic. The students were asked to answer questions on general conditions, participant behavior, instructor evaluation, skill acquisition, topic selection, and overall evaluation after both forms of teaching. Likewise, the lecturers of both courses were queried in semiqualitative interviews about the same topics. Descriptive data analysis was performed to process the data. Results: The students perceived digital teaching to be superior in most subareas compared to in-person teaching in terms of framework, instructor evaluation, skill acquisition, topic selection, and overall rating. Medical students seemed to feel better with digital teaching in most areas of evaluation. The lecturers found the new form of teaching rather unsettling and criticized the lack of verbal and especially nonverbal communication as well as the short preparation time for the new challenge. The instructors were uncomfortable with some aspects of the virtual teaching format. Conclusion: In the wake of the COVID-19 pandemic, medical schools should rapidly digitize their teaching offerings and support faculty members in their computer-based competence with continuing education opportunities and time resources.

Biomechanical Comparison of Cannulated Screw Osteosynthesis With Tension-Band Wiring for Proximal Fractures of the Fifth Metatarsal (Jones Fracture).

Jones fractures, which lie at the junction of the diaphysis to the metaphysis of the fifth metatarsal, are a well-described clinical issue. There are various surgical approaches, including the commonly performed cannulated screw osteosyntheses, and the less frequently used tension-band approach. The aim is to compare the biomechanical stability of these osteosyntheses. We performed an osteotomy on 16 fresh frozen fifth metatarsal bones from body donors representing a Jones fracture. The fractures were treated pairwise with screw osteosynthesis or tension-band wiring. This was followed by cyclic axial bending until osteosynthesis failure. Stability under axial bending force was higher in the screw osteosynthesis (mean: 70.0 ± 66.5 N) compared to the tension-band wiring (mean: 35.7 ± 23.3 N) group although not reaching statistical significance (p = .116). The study shows no statistically significant difference in biomechanical stability under axial loading between screw osteosynthesis and tension band wiring. Based on the data obtained, no differences can be observed from a biomechanical point of view. The study supports the established method of treating Jones fractures primarily with screw osteosynthesis. In addition, the data suggest that tension band wiring may be a good alternative osteosynthesis, for example, after failed casting treatment or failure of primary osteosynthesis.

Is student mentoring career-defining in surgical disciplines? A comparative survey among medical schools and medical students for mentoring programs.

Objective: Facing a shortage of young surgeons, this study aimed to examine the availability of mentoring programs and if this can counteract this lack. Summary background data: Medical mentoring programs have proven to be decisive to influence students' later career decisions. Since their structure may depend on the medical school and the effort of single disciplines, the offers are often very heterogeneous. Methods: Anonymous online-questionnaires were developed and distributed among medical students in Germany and the dean for teaching of the medical schools from July 2019 to January 2020 in Germany. Data of the availability of mentoring programs, their structure and the impact of surgery were collected. Results: Forty three medical schools participated, with 65% offering mentoring programs. 18 of medical schools had no additional funding available for this. Surgical subjects participated in these programs in only 30%. Additionally, 1,516 medical students participated in the second survey. A total of 70% had already participated in a mentoring program with a significantly higher proportion of men. Of these, 94% stated that this was helpful and had an impact on their career planning, without any gender differences. 95% would participate in structured surgical mentoring programs and 95% agreed that this could have an impact on their career planning. Conclusion: Mentoring programs may be able to influence career planning, nevertheless participation by surgical specialties has been low. Becoming more active in providing mentoring programs with a special focus on women and offering more surgical content can be a way to counteract the lack of surgical trainees.

Digital teaching tools in sports medicine: A randomized control trial comparing the effectiveness of virtual seminar and virtual fishbowl teaching method in medical students.

BACKGROUND: Since the COVID-19 pandemic, the demand for online courses has increased enormously. Therefore, finding new methods to improve medical education is imperative. OBJECTIVE: The aim of this study was to compare the self-reports of the individual student-centered virtual teaching techniques (seminar versus fishbowl) in a group of medical students. METHODS: During the second semester of 2020, students in the clinical phase of the study (n = 144) participated in the optional subject of Sports Medicine. The students were divided into 2 groups. One group (n = 72) received the knowledge transfer in the form of a virtual seminar, the other group (n = 72) in the form of a virtual fishbowl. RESULTS: Virtual seminar and virtual fishbowl students gave insights into these teaching techniques. Most of the students from the virtual fishbowl group believed that the virtual fishbowl format allowed them to be more actively involved in learning. The mean quiz scores were statistically higher for students in the virtual fishbowl group than students in the virtual seminar group (p < 0. 001). CONCLUSION: This study concluded that virtual seminars and virtual fishbowl formats could be served as structured learning and teaching formats. At the same time, the virtual fishbowl format can promote an active exchange of knowledge from students' perspectives.

How far has the digitization of medical teaching progressed in times of COVID-19? A multinational survey among medical students and lecturers in German-speaking central Europe.

BACKGROUND: To ensure successful medical education despite the COVID-19 pandemic, the demand for online instruction has substantially increased. Fast and efficient teaching in a digital format poses a great challenge for medical students and lecturers as well as the universities. OBJECTIVE: The aim of this study is to capture the readiness of medical students and faculty members to participate in rapidly- evolving online education. METHODS: This cross-sectional study is based on two questionnaires distributed among medical students and associate deans for education in Germany, Austria and Switzerland. Questions included decision- making questions, categorical questions, and open-ended questions, all addressing the frequency and format of the digital education offered, the perceived quality of digital education, and medical student satisfaction with digital education. Questions about missing content and areas for improvement from the perspectives of medical students were included. The associate deans were asked for their opinions about the impact of the pandemic on teaching, the organizational setup and implementation of digital education by universities, and plans for future initiatives. RESULTS: Three thousand and thirty medical students (m = 752 and f = 2245) from 53 universities participated in the study. The study showed that 92% of students were affected by the pandemic, and 19% of the students viewed the changes as entirely negative. 97% of the medical students were able to participate in digital courses, but only 4% were able to learn exclusively online. For 77% of the medical students, digital offerings accounted for over 80% of the education offered. In terms of content, medical students complained about a lack of practical teaching, such as contact with patients, lecturers, fellow medical students, and a poor perceived quality of teaching due to dubbing, frequent changeover of seminars, problem-oriented learning groups and in-person teaching, a lack of interaction possibilities and a lack of technical equipment, such as lecturers' knowledge and server capacities, at the universities. Overall, almost half of the medical students (42%) rated the implementation of digital teaching at their universities as good or very good. Forty-one of the 53 associate deans responded to the questionnaire, and 35 felt medical education was influenced by the pandemic. The associate deans (80%; 33/41) felt that the digitalization of medical education was negatively influenced by the pandemic. Only 44% (18/41) felt that their universities were well or very well positioned for digital teaching. All the associate deans believe that digital teaching in medicine will continue after the pandemic. CONCLUSIONS: In the German-speaking world, the rapid conversion of medical teaching to a digital format has been well implemented in many cases. The perceived quality of the implementation of digital education still lacks practical relevance and the use of new digital media, such as learning games, VR, and online question time. The digital format of medical education will likely continue beyond the COVID-19 pandemic.

[The role of the Internet as a source of medical information for orthopedic patients]. / Die Rolle des Internets als medizinische Informationsquelle für orthopädische Patienten.

INTRODUCTION: The advance of the digital revolution in medicine and health is called "e-health". The Internet serves as a digital health information platform and is indispensable as a source of medical information. The aim of this work was to examine the behavior of orthopedic patients with respect to finding information on their illnesses. The role and the importance of the Internet as an informative health application for these patients are highlighted. MATERIALS AND METHODS: The basis of this prospective cross-sectional study was a patient survey in Germany of orthopedic patients from July 2019 to July 2020. Descriptive statistics were calculated, and regression analyses were carried out to show coherent results. RESULTS: We analyzed the responses of 1262 orthopedic patients. Most of them used the Internet as a digital health information platform. Patients rated their Internet skills as good to very good, regardless of age or educational level. Most respondents said that they currently use the Internet at least once a week to find out about their orthopedic illnesses. Patients reported a positive change in attitude towards the Internet as a digital source of medical information, and its use has increased in the past 12 months. CONCLUSION: The Internet as an informative digital health application in orthopedics is used intensively and is widely accepted by patients. While mistrust of orthopedic health information from the Internet has decreased, patient confidence in meaningful digital health information platforms has increased. The Internet is seen as a useful health information platform alongside medical advice.

Does Total Hip Arthroplasty Influence the Development and Localization of Sacral Insufficiency Fractures?

BACKGROUND: Sacral insufficiency fractures (SIFs) are fractures related to reduced bone strength. In a previous study, we noticed that many patients with SIF had undergone total hip arthroplasty (THA). Therefore, the purpose of the present study was to research the localization of clinically apparent SIFs in relation to unilateral THA as well as the influence of unilateral THA on bone mineral density changes in the sacrum. METHODS: In this retrospective study, 171 patients with SIFs were screened for unilateral THA. In the group of patients with SIF and THA, the rate of SIF ipsilateral and contralateral to the side of the THA was determined. In a second cohort of 39 THA patients with healthy bone, changes in bone mineral density at the sacral alae ipsilateral and contralateral to the THA were analyzed by use of computed tomography immediately postoperatively and at the 1-year follow-up. RESULTS: Of the 171 patients with SIF, 50 (40 female; mean age, 79 years; range, 54 to 101 years) were previously treated with THA. Of the 50, 31 patients were treated with unilateral THA. The proportion of patients with an SIF contralateral to the THA was 42% (13 of 31) and ipsilateral to the THA was 19% (6 of 31). Twelve patients had bilateral SIFs. The mean age of the THA group without SIF was 62 years (range, 49 to 79 years); 17 were female. The median bone mineral density decreased significantly (p = 0.023), from 35.0 to 13.0 HU, at the sacral ala contralateral to the THA, whereas the decrease of ipsilateral bone mineral density, from 24.0 to 17.0 HU, was not significant (p = 0.361). CONCLUSIONS: The proportion of patients with an SIF contralateral to a THA was twice as high as that of patients with an SIF ipsilateral to a THA. These findings are supported by the second cohort's decrease in bone mineral density at the sacral ala contralateral to the THA at 1 year after surgery. We conclude that THA can lead to spatially different remodeling of the sacrum, possibly affecting the development of SIFs. LEVEL OF EVIDENCE: Prognostic Level III. See Instructions for Authors for a complete description of levels of evidence.

[The influence of occupational activity on diseases of the musculoskeletal system of the upper extremity]. / Einfluss der beruflichen Tätigkeit auf Erkrankungen des Bewegungsapparates der oberen Extremität.

INTRODUCTION: Diseases of the musculoskeletal system of the upper extremity are the reason for increasing sickness-related absenteeism among the working population. OBJECTIVE: The aim of this study is to investigate the influence of occupational dependence on the development of musculoskeletal disorders of the upper extremities and to present health-related risks in addition to occupation-specific factors. MATERIALS AND METHODS: We included 1070 patients who underwent surgical rotator cuff (RC) reconstruction for an RC lesion between 2016 and 2019. The relevant data were retrospectively documented from the hospital information system. The patients' occupations were classified according to the Classification of Occupations 2010 (KldB 2010) and compared with routinely recorded and anonymized freely available data (Federal Statistical Office, Federal Employment Agency). RESULTS: Of the 1070 patients, 844 were of working age. The age structure of the individual areas showed no significant differences. Based on the comparisons of patient data with the population, significantly higher RC injury rates were found in agriculture, forestry, animal husbandry and horticulture (p = 0,003); construction, architecture, surveying and building services engineering (p < 0,001); transport, logistics, protection, and security (p < 0.001) and business organization, accounting, law, and administration (p < 0,001). There was a significantly reduced risk in science, geography and computer science (p = 0.015); commercial services, goods trade, distribution, hotel and tourism (p < 0,001); health, social affairs, teaching and education (p < 0,001). CONCLUSION: The prevalence of RC lesions shows a statistical correlation with the occupation performed depending on the occupational branches. In addition to occupational dependency, gender-specific work factors play a role. Shoulder pain in gainful employment should be considered in a more differentiated way. This should enable preventive measures to be taken in a targeted manner.

Digitization in gynecology and obstetrics in times of COVID-19: Results of a national survey.

INTRODUCTION: In the COVID-19 pandemic, many consultations had to be cancelled, postponed, or converted to a virtual format. The use of telemedicine in the management of Women's Health Care could support doctors (tele-gynecology). This study analyses the use and perception of telemedicine applications among gynecologists in Germany. MATERIALS AND METHODS: This prospective cross-sectional study was based on a survey of gynecologists in Germany during the COVID-19 pandemic. Descriptive statistics were calculated, and regression analyses were performed to show correlations. RESULTS: The gynecologists expect telemedicine to be used in gynecology and obstetrics. 76.4% (365/478) of the respondents rated their knowledge of telemedicine as insufficient. The majority of respondents (437/478, 91.6%) said they did not currently use telemedicine, although 67.3% (321/478) would like to do so. Obstacles to the introduction of telemedicine include the purchase of technical equipment (325/478, 68.1%), administration (305/478, 64.0%) and poor reimbursement (233/478, 48.9%). Gynecologists surveyed would prefer telemedicine to communicate directly with other doctors (388/478, 81.2%) rather than to communicate with patients (228/478, 47.8%). In the treatment phases, 73.2% (349/478) of the respondents would use telemedicine during follow-up. Half of the respondents would choose tele counseling as a specific approach to improving care (246/478, 51.5%). CONCLUSION: Telemedicine in gynecology finds little use but high acceptance. The absence of a structured framework is an obstacle to effective implementation. Training courses should be introduced to improve the limited knowledge in the use of telemedicine. More research in tele-gynecology is needed. These include large-scale randomized controlled trials, economic analyses and the exploration of user preferences.

Acceptance, Use, and Barriers of Telemedicine in Transgender Health Care in Times of SARS-CoV-2: Nationwide Cross-sectional Survey.

BACKGROUND: The global incidence in the treatment of transgender people is increasing. During the COVID-19 pandemic, many consultations had to be cancelled, postponed, or converted to a virtual format. Telemedicine in the management of transgender health care could support physicians. OBJECTIVE: The aim of this study was to analyze the acceptance, use, and barriers of telemedicine in transgender health care in times of SARS-CoV-2 in Germany. METHODS: This prospective cross-sectional study was based on a survey of gynecological endocrinologists and transgender patients undergoing gender-affirming hormone treatment in Germany during the COVID-19 pandemic. Descriptive statistics were calculated, and regression analyses were performed to show correlations. RESULTS: We analyzed responses of 269 transgender patients and 202 gynecological endocrinologists treating transgender patients. Most believed that telemedicine was useful. Physicians and patients rated their knowledge of telemedicine as unsatisfactory. The majority of respondents said they did not currently use telemedicine, although they would like to do so. Patients and physicians reported that their attitudes toward telemedicine had changed positively and that their use of telemedicine had increased due to COVID-19. The majority in both groups agreed on the implementation of virtual visits in the context of stable disease conditions. In the treatment phases, 74.3% (150/202) of the physicians said they would use telemedicine during follow-ups. Half of the physicians said they would choose tele-counseling as a specific approach to improving care (128/202, 63.4%). Obstacles to the introduction of telemedicine among physicians included the purchase of technical equipment (132/202, 65.3%), administration (124/202, 61.4%), and poor reimbursement (106/202, 52.5%). CONCLUSIONS: Telemedicine in transgender health care found limited use but high acceptance among doctors and patients alike. The absence of a structured framework is an obstacle for effective implementation. Training courses should be introduced to improve the limited knowledge of physicians in the use of telemedicine. More research in tele-endogynecology is needed. Future studies should include large-scale randomized controlled trials, economic analyses, and the exploration of user preferences.

Telemedicine as a Therapeutic Option in Sports Medicine: Results of a Nationwide Cross-Sectional Study among Physicians and Patients in Germany.

BACKGROUND: Worldwide, the number of treatments in the field of sports medicine is increasing. However, the COVID-19 pandemic has changed everyday life. Many consultations had to be cancelled, postponed, or converted to a virtual format. Telemedicine in sports medicine could support physicians. This study analyzes the use and perception of telemedicine applications among physicians and patients in the field of sports medicine in Germany. METHODS: This prospective cross-sectional study was based on a survey of sports medicine physicians and patients in Germany during the COVID-19 pandemic. Descriptive statistics were calculated. RESULTS: We analyzed the responses of 729 patients and 702 sports medicine physicians. Most believed that telemedicine is useful. Both physicians and patients rated their knowledge of telemedicine as unsatisfactory. The majority of respondents said they do not currently use telemedicine but would like to do so. Patients and physicians reported that their attitude had changed positively towards telemedicine and that their usage had increased due to COVID-19. The majority in both groups agreed on implementing virtual visits in stable disease conditions. Telemedicine was considered helpful for follow-up monitoring and prevention by both groups. CONCLUSION: Telemedicine in sports medicine has seen limited use but is highly accepted among physicians and patients alike. The absence of a structured framework is an obstacle to effective implementation. Training courses should be introduced to improve the limited knowledge regarding the use of telemedicine. More research in telemedicine in sports medicine is needed. This includes large-scale randomized controlled trials, economic analyses and explorations of user preferences.

[Comparison between navigated and conventional percutaneous screw fixation of non-displaced scaphoid fractures]. / Vergleich der navigierten und konventionellen perkutanen Verschraubung undislozierter Kahnbeinfrakturen.

BACKGROUND: Incorrect screw placement and penetration in screw fixation of scaphoid fractures are found in 5 to 30 %. Therefore, optimizing of screw placement is desirable, especially because an exact central position of the screw in the proximal fragment leads to a significant higher stability as a more peripheral position. PATIENTS UND METHODS: 36 patients with an acute non-displaced scaphoid fracture were included in this randomized prospective study. 18 patients underwent navigated, the other 18 conventional percutaneous screw fixation of an acute non-displaced scaphoid fracture through a dorsal approach. Operation time and x-ray dose were measured. In both groups the position of the screw in the scaphoid was calculated on CT scans and compared with each other. Clinically, 17 patients with navigated and 11 with conventional percutaneous screw fixation with an average age of 52 resp. 43.2 years were available for follow-up examination including Krimmer- and DASH-score. RESULTS: All scaphoids healed within an adequate time. Two cases of navigated screw fixation have been converted to conventional percutaneous screw fixation. The average operation time in the navigated group was 83.2 minutes, in the conventional group 42.1 minutes. X-ray dose measured 106,5 ± 19,9cGy/cm2 in the navigated group and 45,6 ± 8,0cGy/cm2 in the conventional group. Screw penetration using an intraosseous compression screw (HSC) was observed in 5 conventionally fixed scaphoids, 4 distally (2,27 ± 1,47 mm), 1 proximally. In the navigated group there were 11 screw penetrations, 4 proximally (2,01 ± 0,81 mm) and distally (1,21 ± 0,64 mm), 3 distally (1,18 ± 0,44 mm), and 4 proximally (1,61 ± 0,57 mm). Axial screw position was more accurate in the conventional group. The 17 navigated patients averaged a Krimmer-Score of 83.6 and a DASH-score of 5,6 points at follow-up. The 11 conventional treated patients averaged a Krimmer-Score of 95 and a DASH-score of 8.0 points at follow-up. CONCLUSION: In this study navigated screw fixation of acute non-displaced scaphoid fractures was not superior to conventional percutaneous screw fixation, neither for screw position, screw penetration nor with respect to the clinical outcome.

Significance of Lumbar MRI in Diagnosis of Sacral Insufficiency Fracture.

STUDY DESIGN: Retrospective observational study. OBJECTIVE: The aim of the present study was to evaluate the role of lumbar magnetic resonance imaging (MRI) in the diagnostic algorithm of sacral insufficiency fractures (SIF). The primary objective was to compare the sensitivity in fracture detection and correct fracture classification according to MRI and computed tomography (CT). The secondary objective was to identify differences of additional pathologies found in MRI of the lumbar spine and the pelvis and their rates. METHODS: A total of 943 patients (from 2010 to 2017) with fracture of the pelvic ring were screened. All patients without high-energy trauma and radiologic diagnostics consisting of X-ray, CT, and MRI of the pelvis or the lumbar spine including the sacrum were included. Differences in fracture detection and description in the various radiologic procedures were evaluated. Detection rates of additional pathologies in MRI of the pelvis and lumbar spine were recorded. RESULTS: A total of 77 subjects were included. The sensitivities for SIF were 14% in X-ray and 88% in CT, and all fractures were detected in MRI. MRI showed a more complex fracture pattern compared with CT in 65% of the cases. Additional pathologies were seen in MRI of the lumbar spine (51%) and that of the pelvis (18%). CONCLUSIONS: We suggest performing MRI of the lumbar spine including the sacrum with coronal STIR (short tau inversion recovery) sequence for elderly patients with suddenly increasing low back pain at an early stage. This procedure might improve fracture detection, classification, and recognition of concomitant pathologies.

Modified therapy concepts for fragility fractures of the pelvis after additional MRI.

BACKGROUND: Fractures of the pelvic ring in elderly patients have increased in frequency over time. These injuries are associated with a high morbidity and have a socio-economic impact. The diagnostic procedures and their influence of therapy decisions are still controversial. METHODS: In a retrospective study, we investigate the value of additional MRI examination on therapy decision of fragility fractures of the pelvis. The evaluation of all patients with pelvic fractures without adequate trauma and with performed CT and MRI was conducted at three large German hospitals. The imaging procedure took place within a maximum interval of 4 weeks. After evaluation of the imaging, the resulting therapeutic consequences either based on CT alone or on CT and MRI were reviewed by experienced pelvic surgeons. RESULTS: Of 754 patients with pelvic injuries, 67 (age 80 +/- 9.7 years, f: m 54:13) could be included. The detection of vertical fractures in CT (n = 40 unilateral, n = 11 bilateral) could be increased by the additional MRI (n = 44 unilateral, n = 23 bilateral). A horizontal fracture component was identified in CT in 9.0% (n = 6) vs. MRI in 25.4% (n = 17) of the cases. An anterior pelvic ring injury was detected in 71.6% (n = 44; 4x bilateral) in CT, in 80.6% in MRI (n = 50, 4 bilateral). Additive MRI imaging increased the decision rate for surgical therapy from 20.9% (n = 14) to 31.3% (n = 21). CONCLUSIONS: The results of this study further support the value of bone marrow edema detection by MRI diagnostics (or dual source CT which showed promising initial results) for the detection of pelvic ring fractures. For the first time, the study identifies an additional therapeutic consequence by an increased rate of surgical procedures.

Deviations in positioning variable pitch screws- scaphoid waist fractures.

INTRODUCTION: Operative therapy using a headless cannulated variable pitch compression screw is the gold standard for the treatment of instable scaphoid fractures. HYPOTHESIS: Deviation from the central placement is associated with a loss of stability and stiffness. MATERIAL AND METHODS: An artificial bone model was manufactured and different screw positions (central, 10° and 20° to the long axis) were assessed. A shearing test with axial force on the 45° flexed scaphoid was applied. RESULTS: The inserted variable pitch screw showed the highest stiffness and failure force in a position in the long axis. At 10 degrees, a slight decrease in stiffness (32.7N/mm±9.3N/mm) and failure force (41.6N±13.2N) was observed, while a significant reduction in stiffness (29.3N/mm±4.6N/mm) and failure force (50.3N±19.5N) was measured at 20 degrees. DISCUSSION: Deviations in the angle of insertion of the compression screw cause loss in failure force, thus deviations from the central placement is associated with less stability and stiffness. LEVEL OF PROOF: Controlled laboratory study (basic science study, biomechanical testing).

Effect of different multiplanar reformation algorithms on image quality of intraoperative three-dimensional fluoroscopy.

Different multiplanar reformation (MPR-512 and -256) algorithms of intraoperative acquired 3-D-fluoroscopy data exist without recommendations for use in the literature. To compare algorithms, 3-D-fluoroscopic data sets of 46 radius fractures were blinded and processed using MPR-256 and -512 (Ziehm, Vision-Vario 3D). Each reformatted data set was analysed to evaluate image quality, fracture reduction quality and screw misplacements. Overall image quality was higher rated in the MPR-512 compared with the MPR-256 (3.2 vs. 2.2 points, scale 1-5 points), accompanied by a reduced number of scans that could not be analysed (10 vs. 19%). Interobserver evaluation of fracture reduction quality was fair to moderate (independent of the algorithm). In contrast, for screw misplacements MPR-depended ratings were found (MPR-256: fair to moderate; MPR-512: moderate to substantial). Optimization of post-processing algorithms, rather than modifications of image acquisition, may increase the image quality for assessing implant positioning, but limitations in evaluating fracture reduction quality still exist.

A Systematic Review of Neuroprotective Strategies in the Management of Hypoglycemia.

Severe hypogylcemia has been found to induce cerebral damage. While a number of illnesses can lead to hypoglycemic episodes, antidiabetic medications prescribed for glycemic control are a common cause. Considering the rising prevalence of diabetes mellitus in the population, we investigated neuroprotective strategies during hypoglycemia in the form of a systematic review in adherence to the PRISMA statement. A review protocol was registered in the PROSPERO database. A systematic literature search of PubMed, Web of Science, and CENTRAL was performed in September 2018. Based on a predefined inclusion protocol, results were screened and evaluated by two researchers. Both animal experiments and human studies were included, and their risk of bias was assessed with SYRCLE's and the Cochrane risk of bias tools, respectively. Of a total of 16,230 results, 145 were assessed in full-text form: 27 articles adhered to the inclusion criteria and were qualitatively analyzed. The retrieved neuroprotective strategies could be categorized into three subsets: (1) Energy substitution, (2) hypoglycemia unawareness, and (3) other neuroprotective strategies. While on a study level, the individual results appeared promising, more research is required to investigate not only specific neuroprotective strategies against hypoglycemic cerebral damage, but also its underlying pathophysiological mechanisms.

Elongated Conus Medullaris, Sacral Agenesis, and Scoliosis: A Case Report of a Patient with Trisomy 19q and Monosomy 7q.

BACKGROUND: Progression of scoliosis following completion of growth, and the combination of low mental retardation and the conspicuous sagittal clinical and radiographic abnormalities suggest a secondary genesis of the scoliosis according to a genetic aberration. CASE DESCRIPTION: In the outpatient department, an 18-year-old woman presents with scoliosis and mild mental retardation. Radiography findings demonstrate a sacral agenesis and then consecutively performed magnetic resonance imaging on a conus depression. Because of the symptom constellation, a genetic syndrome was suspected. Genetic diagnostics revealed a trisomy 19q and monosomy 7q. Typically, deletions of the subtelomere 7q show a phenotype with growth retardation, facial anomalies, and intellectual deficit; trisomy of the subtelomere 19q shows growth retardation, atypical ears, short neck, and intellectual deficit with delayed development. The further clinical radiologic and neurologic examination showed no evidence of a tethered cord syndrome. The correction of scoliosis was performed under intraoperative neurophysiological monitoring without neurologic complications. CONCLUSIONS: In the presence of dysplastic sacral changes and accompanying elongated conus medullaris in patients with scoliosis, it is always necessary to think of rare chromosome aberrations and to initiate appropriate diagnostics before surgery. The intraoperative neurophysiological monitoring is strongly recommended, owing to a morphologically, and not fully-excludable, tethered cord syndrome.

The Anterior Intrapelvic Approach for Acetabular Fractures Using Approach-Specific Instruments and an Anatomical-Preshaped 3-Dimensional Suprapectineal Plate.

OBJECTIVES: Anatomical acetabular plates the anterior intrapelvic approach (AIP) were recently introduced to fix acetabular fractures through the intrapelvic approach. Therefore, we asked the following: (1) Does the preshaped 3-dimensional suprapectineal plate interfere with or even impair the fracture reduction quality? (2) How often does the AIP approach need to be extended by the first (lateral) window of the ilioinguinal approach? DESIGN: Observational case series. SETTING: Two Level 1 trauma centers. PATIENTS/PARTICIPANTS: Patients with unstable acetabular fractures in 2014. INTERVENTION: Fracture fixation with anatomical-preshaped, 3-dimensional suprapectineal plates through the AIP approach ± the first window of the ilioinguinal approach. OUTCOME MEASUREMENTS: Fracture reduction results were measured in computed tomography scans and graded according to the Matta quality of reduction. Intraoperative parameters and perioperative complications were recorded. Radiological results (according to Matta) and functional outcome (modified Merle d'Aubigné score) were evaluated at 1-year follow-up. RESULTS: Thirty patients (9 women + 21 men; mean age ± SE: 64 ± 8 years) were included. The intrapelvic approach was solely used in 19 cases, and in 11 cases, an additional extension with the first window of the ilioinguinal approach (preferential for 2-column fractures) was performed. The mean operating time was 202 ± 59 minutes; the fluoroscopic time was 66 ± 48 seconds. Fracture gaps and steps in preoperative versus postoperative computed tomography scans were 12.4 ± 9.8 versus 2.0 ± 1.5 and 6.0 ± 5.5 versus 1.3 ± 1.7 mm, respectively. At 13.4 ± 2.9 months follow-up, the Matta grading was excellent in 50%, good in 25%, fair in 11%, and poor in 14% of cases. The modified Merle d'Aubigné score was excellent in 17%, good in 37%, fair in 33%, and poor in 13% of cases. CONCLUSION: The AIP approach using approach-specific instruments and an anatomical-preshaped, 3-dimensional suprapectineal plate became the standard procedure in our departments. Radiological and functional early results justify joint preserving surgery in most cases. LEVEL OF EVIDENCE: Therapeutic Level IV. See Instructions for Authors for a complete description of levels of evidence.