Current Trends in Orthopaedics and Trauma in Germany.

During the Guest Nation Symposium (cobranded with the Deutsche Gesellschaft für Orthopädie und Unfallchirurgie, Deutsche Gesellschaft für Orthopädie und Orthopädische Chirurgie, and Deutsche Gesellschaft für Unfallchirurgie) at the 2023 American Academy of Orthopaedic Surgeons Congress in Las Vegas, the goal was to compile nationally important content from German orthopaedics and trauma surgery. This resulted in a mix of content on the latest developments in trauma care, knee arthroplasty, spinopelvic importance for hip arthroplasty, stemless shoulder endoprostheses, joint preservation for ankle osteoarthritis, trauma education, and research. Of course, this is only a small selection of the important issues that are being driven forward in Germany.

Training Effectiveness and Impact on Safety, Treatment Quality, and Communication in Prehospital Emergency Care: The Prospective Longitudinal Mixed-Methods EPPTC Trial.

BACKGROUND: Emergency training is designed to improve medical care teams' knowledge, practical skills, and treatment procedures in patient care to increase patient safety. This requires effective training, but the multifactorial effects of training are difficult to measure. METHODS: We assessed the impact of emergency team training on treatment procedures and quality, processes, technical skills, and nontechnical skills in simulated trauma emergencies in a longitudinal analysis, using videos that were recorded before (t0), immediately after (t1), and 1 year after the training (t2). The training was evaluated with the validated PERFECT checklist, which includes 7 scales: primary assessment, secondary assessment, procedures, technical skills, trauma communication, nontechnical skills, and a global performance scale.The primary end point was the change from before a training intervention (t0) to 1 year after training (t2), measured by a metric point score. The second end point was the impact of the intervention from before training to after and from immediately after training to 1 year later. RESULTS: A total of 146 trainings were evaluated. In simulated traumatological emergencies, training participants showed significantly better treatment capacity after 1 year (t0: 28.8 ± 5.6 points versus t2: 59.6 ± 6.6 points, P < 0.001), with greater improvement from t0 to t1 (28.8 ± 5.6 points versus 65.1 ± 7.9 points, P < 0.001). The most significant change from t0 to t2 was seen in the primary assessment, with a mean change of 11.1 ± 5.1, followed by the scale of the procedure (6.1 ± 3.0) and nontechnical skills (6.0 ± 3.0). CONCLUSIONS: Team trainings with intensive scenario training and short theoretical inputs lead to a significant improvement in simulated care of severely injured patients, especially in identifying and intervening in life-threatening symptoms, processes, and nontechnical skills, even 1 year after the course. Positive, longitudinally positive effects were also in communication and subjective safety of prehospital health care personnel.

Development of a New Emergency Medicine Spinal Immobilization Protocol for Pediatric Trauma Patients and First Applicability Test on Emergency Medicine Personnel.

OBJECTIVES: The purpose of this study was to (i) develop a protocol that supports decision making for prehospital spinal immobilization in pediatric trauma patients based on evidence from current scientific literature and (ii) perform an applicability test on emergency medicine personnel. METHODS: A structured search of the literature published between 1980 and 2019 was performed in MEDLINE using PubMed. Based on this literature search, a new Emergency Medicine Spinal Immobilization Protocol for pediatric trauma patients (E.M.S. IMMO Protocol Pediatric) was developed. Parameters found in the literature, such as trauma mechanism and clinical findings that accounted for a high probability of spinal injury, were included in the protocol. An applicability test was administered to German emergency medicine personnel using a questionnaire with case examples to assess correct decision making according to the protocol. RESULTS: The E.M.S. IMMO Protocol Pediatric was developed based on evidence from published literature. In the applicability test involving 44 emergency medicine providers revealed that 82.9% of participants chose the correct type of immobilization based on the protocol. A total of 97.8% evaluated the E.M.S. IMMO Protocol Pediatric as helpful. CONCLUSIONS: Based on the current literature, the E.M.S. IMMO Protocol Pediatric was developed in accordance with established procedures used in trauma care. The decision regarding immobilization is made on based on the cardiopulmonary status of the patient, and life-threatening injuries are treated with priority. If the patient presents in stable condition, the necessity for full immobilization is assessed based upon the mechanisms of injury, assessment of impairment, and clinical examination.

Comparison of manual statements from out-of-hospital trauma training programs and a national guideline on treatment of patients with severe and multiple injuries.

PURPOSE: Training programs help establish evidence-based knowledge in prehospital emergency care. This study aimed to compare manual statements from prehospital trauma training programs and evidence-based guidelines on treatment of patients with severe and multiple injuries. METHODS: A systematic comparison with the primary endpoint of the highest grades of recommendation (GoR A, "must") of the current version of the German guidelines and recent recommendations of the prehospital trauma training programs International Trauma Life Support (ITLS), Prehospital Trauma Life Support (PHTLS), and Traumamanagement® (TM) based on their official textbooks was done. The recommendations were categorized as agreement or minor or major variation. The comparison was made using a rating system by experts who were blinded to the training programs. If the consensus strength of the experts was < 75%, affected statements were finalized in a Delphi procedure. RESULTS: Overall, 92 statements were compared. Fleiss-kappa of the first rating was 0.385 (p < 0.001, 95% CI: 0.376-0.393). Finally, comparable recommendations of the guideline with the training programs in principle agree with the statement of the guidelines were > 90% for all programs. The agreement with GoR A recommendations and each course program were 33.9%, 30.6%, and 35.5% (ITLS, PHTLS, and TM, respectively), p = 0.715. CONCLUSIONS: Despite small differences, the training programs showed high degrees of compliance with the guidelines and international agreement with some minor differences. Furthermore, the results did not allow any conclusions regarding the quality of the courses, the didactic methodology, and local adaptability. The practical implementation of the courses is probably even higher and closer to the guidelines.

Comparing the Short-Term Outcome after Polytrauma and Proximal Femur Fracture in Geriatric Patients.

Because of demographic change, geriatric patients are becoming a major challenge for traumatology. Multiple trauma patients and patients with proximal femoral fractures are important groups of patients in geriatric traumatology. This retrospective study compares two patient groups with different severities of injuries, and analyzes their patient characteristics and short-term outcomes, focusing on functionality upon discharge. The investigation aims to present the characterizing features of both patient groups, and to identify the potential risk factors for early functionality after trauma. The patient collective comprises two patient groups: a polytrauma group with 91 patients, and a femoral fracture group with 132 patients. Under the control of potential influencing factors, the present study showed no significant influence of belonging to either of the patient groups (multiple trauma or proximal femoral fracture) on the mobility status at discharge. Age, known dementia, pre-clinical intubation, and the lowest Hb value were identified as significant influencing factors. Despite their old age and vulnerability, the majority of geriatric patients survive accidents. Further prospective investigations concerning the maintenance or restoration of functionality after an accident are therefore desirable.

Analysis of cervical spine immobilization during patient transport in emergency medical services.

PURPOSE: It remains controversial how to immobilize the cervical spine (CS) in trauma patients. Therefore, we analyzed different CS immobilization techniques during prehospital patient transport. METHODS: In this explorative, biomechanical analysis of immobilization techniques conducted in a standardized setting, we recorded CS motion during patient transport using a wireless human motion tracker on a volunteer. To interpret spinal movement a benchmark called motionscore (MS) was developed based on biomechanics of the injured spine. RESULTS: We found the best spinal motion restriction using a spine board, head blocks and immobilization straps with and without a cervical collar (CC) (MS 45 vs. 27). Spinal motion restriction on a vacuum mattress with CC and head blocks was superior to no CC or head blocks (MS 103 vs. 152). An inclined vacuum mattress was more effective with head blocks than without (MS 124 vs. 187). Minimal immobilization with an ambulance cot, CC, pillow and tape was slightly superior to a vacuum mattress with CC and head blocks (MS 92 vs. 103). Minimal immobilization without CC showed the lowest spinal motion restriction (MS 517). CONCLUSIONS: We suggest an immobilization procedure customized to the individual situation. A spine board should be used whenever spinal motion restriction is indicated and the utilization is possible. In some cases, CS immobilization by a vacuum mattress with CC and head blocks could be more beneficial. In an unstable status of the patient, minimal immobilization may be performed using an ambulance cot, pillow, CC and tape to minimize time on scene caused by immobilization.

"Quod licet Chefarzt  ": The Impact of Perceived Hierarchy on Working Atmosphere and Quality of Work in Orthopaedic and Trauma Surgery. Results of a Survey Among 799 Orthopaedic and Trauma Surgeons in Germany. / "Quod licet Chefarzt  ": Der Einfluss der empfundenen Hierarchie auf Arbeitsklima und Arbeitsqualität in O und U. Ergebnisse einer Umfrage unter 799 Orthopäden und Unfallchirurgen in Deutschland.

INTRODUCTION: Surgical departments are discredited as guardians of traditional structures of hierarchy. Hierarchy and working climate have a large share in human factor, being made responsible for 70% of avoidable errors in medicine. Aim of this study was the assessment of these topics amongst physicians in the field of orthopedics and traumatology. MATERIAL AND METHODS: A questionnaire of 10 questions was digitally handed to DGOU members. 799 questionnaires were answered. RESULTS: We found significant differences in the assessment of hierarchy and working atmosphere amongst the physician groups. Working atmosphere was perceived as not appreciative by registrars only. All groups were in favor of a hierarchy rather close to, but nut absolutely on equal terms. All groups attach high influence of working atmosphere on quality of daily work. DISCUSSION: Literature shows that hierarchic differentiation can increase performance of a team, while rigid hierarchy structures can lead to mistakes. Although hierarchy in orthopedics and traumatology seems to be less pronounced than assumed, hierarchy has great influence on daily work. CONCLUSION: In order to achieve a safety oriented medical environment, it will be of great importance to define hierarchy structures in clinics and to utilize them efficiently as a part of safety culture.

Training to identify red flags in the acute care of trauma: who are the patients at risk for early death despite a relatively good prognosis? An analysis from the TraumaRegister DGU®.

BACKGROUND: In the acute care of trauma, some patients with a low estimated risk of death die suddenly and unexpectedly. In this study, we aim to identify predictors for early death within 24 h following hospital admission in low-risk patients. METHODS: The TraumaRegister DGU® was used to collect records of patients who were primarily treated in a participating hospital between 2004 and 2013 with a RISC II score below 10%. RESULTS: During the study period, 64,379 patients met the inclusion criteria. The mean RISC II score was 2.0%, and the mean ISS was 16 ± 9. The overall hospital mortality rate was 2.1%, and 0.5% of patients (n = 301) died within the first 24 h. A SPB of ≤ 90 mmHg was associated with an increased risk of death (p < 0.001). An AIS abdomen score of ≥ 3 was associated with increased risk of death within the first 24 h (p < 0.001). A high risk of early death was also seen in patients with an AIS score (thorax) ≥ 3; 51% of those who died died within the first 24 h (p < 0.005). Death in patients over 60 years was more common after 24 h (p < 0.001). Patients with an ASA score of ≥ 3 were more likely to die after the first 24 h (p < 0.001). CONCLUSIONS: Indicators predicting a high risk of early death in patients with a low RISC II score include a SPB ≤ 90 mmHg and severe chest and abdominal trauma. Emergency teams involved in the acute care of trauma patients should be aware of these "red flags" and treat their patients accordingly.

Remaining Cervical Spine Movement Under Different Immobilization Techniques.

BACKGROUND: Immobilization of the cervical spine by Emergency Medical Services (EMS) personnel is a standard procedure. In most EMS, multiple immobilization tools are available.The aim of this study is the analysis of residual spine motion under different types of cervical spine immobilization. METHODS: In this explorative biomechanical study, different immobilization techniques were performed on three healthy subjects. The test subjects' heads were then passively moved to cause standardized spinal motion. The primary endpoints were the remaining range of motion for flexion, extension, bending, and rotation measured with a wireless human motion detector. RESULTS: In the case of immobilization of the test person (TP) on a straight (0°) vacuum mattress, the remaining rotation of the cervical spine could be reduced from 7° to 3° by additional headblocks. Also, the remaining flexion and extension were reduced from 14° to 3° and from 15° to 6°, respectively. The subjects' immobilization was best on a spine board using a headlock system and the Spider Strap belt system (MIH-Medical; Georgsmarienhütte, Germany). However, the remaining cervical spine extension increased from 1° to 9° if a Speedclip belt system was used (Laerdal; Stavanger, Norway). The additional use of a cervical collar was not advantageous in reducing cervical spine movement with a spine board or vacuum mattress. CONCLUSIONS: The remaining movement of the cervical spine is minimal when the patient is immobilized on a spine board with a headlock system and a Spider Strap harness system or on a vacuum mattress with additional headblocks. The remaining movement of the cervical spine could not be reduced by the additional use of a cervical collar.

Spinal Immobilization in the Trauma Room - a Survey-Based Analysis at German Level I Trauma Centers. / Die Immobilisation der Wirbelsäule im Schockraum ­ eine umfragebasierte Analyse in den deutschen überregionalen Traumazentren.

BACKGROUND: Spinal immobilization is a standard procedure in daily out-of-hospital emergency care. Homogenous recommendations concerning the immobilization of trauma patients during the first therapy in the emergency department do not exist. The aim of the current study was the analysis of the existing strategies concerning spinal immobilization in German level I trauma centers by an internet-based survey. MATERIALS AND METHODS: The current study is a survey-based analysis of the current strategies concerning spinal immobilization in all 107 level I trauma centers in Germany. The internet-based survey consists of 6 items asking about immobilization in the emergency department. RESULTS: The return rate was 47.7%. In 14 (28.6%) level I trauma centers the patients remained immobilized on the immobilization tool used by the professional emergency care providers. In 19 (38.8%) level I trauma centers the patients were transferred to a stretcher with a soft positioning mattress on it. Patient transfer to a spineboard or to a TraumaMattress was performed in 11 (22.4%) and 7 (14.3%) level I trauma centers, respectively. Trauma patients were never transferred to a vacuum mattress. Cervical spine protection was most of the time performed by a cervical collar (n = 48; 98.0%). In general, the survey's participants were mainly satisfied (mean = 84/100) with the current strategy of spinal immobilization. The satisfaction was best if the spineboard is used. DISCUSSION: Patient positioning during initial emergency therapy in the emergency department of German level I trauma centers is highly heterogenous. Besides complete full body immobilization, also the lack of any immobilization was reported by the survey's participants.

[Development and first application testing of a new protocol for preclinical spinal immobilization in children : Assessment of indications based on the E.M.S. IMMO Protocol Pediatric]. / Entwicklung eines neuen Protokolls zur präklinischen Immobilisation der Wirbelsäule bei Kindern und erste Anwendungsuntersuchung : Indikationsstellung anhand des E.M.S. IMMO Protocol Pediatric.

BACKGROUND: To protect the spine from secondary damage, spinal immobilization is a standard procedure in prehospital trauma management. Immobilization protocols aim to support emergency medicine personnel in quick decision making but predominantly focus on the adult spine; however, trauma mechanisms and injury patterns in adults differ from those in children and applying adult prehospital immobilization protocols to pediatric patients may be insufficient. Adequate protocols for children with spinal injuries are currently unavailable. OBJECTIVE: The aim of this study was (i) to develop a protocol that supports decision making for prehospital spinal immobilization in pediatric trauma patients based on evidence from current scientific literature and (ii) to perform a first analysis of the quality of results if the protocol is used by emergency personnel. MATERIAL AND METHODS: Based on a structured literature search a new immobilization protocol was developed. Analysis of the quality of results was performed by a questionnaire containing four case scenarios in order to assess correct decision making. The decision about spinal immobilization was made without and with the utilization of the protocol. RESULTS: The E.M.S. IMMO Protocol Pediatric was developed based on the literature. The analysis of the quality of results was performed involving 39 emergency medicine providers. It could be shown that if the E.M.S. IMMO Protocol Pediatric was used, the correct type of immobilization was chosen more frequently. A total of 38 out of 39 participants evaluated the protocol as helpful. CONCLUSION: The E.M.S. IMMO Protocol Pediatric provides decision-making support whether pediatric spine immobilization is indicated with respect to the cardiopulmonary status of the patient. In a first analysis, the E.M.S. IMMO Protocol Pediatric improves decision making by emergency medical care providers.

An explorative, biomechanical analysis of spine motion during out-of-hospital extrication procedures.

OBJECTIVES: The extrication of patients following a road traffic collision is among the basic procedures in emergency medicine. Thus, extrication is a frequently performed procedure by most of the emergency medical services worldwide. The appropriate extrication procedure depends on the patient's current condition and accompanying injuries. A rapid extrication should be performed within a few minutes, and the cervical spine (at least) should be immobilized. To our knowledge, the scientific literature and current guidelines do not offer detailed recommendations on the extrication of injured patients. Thus, the aim of the current study is to compare the effectiveness of spinal stabilization during various out-of-hospital extrication procedures. METHODS: This is an explorative, biomechanical analysis of spine motion during different extrication procedures on an example patient. Movement of the cervical spine was measured using a wireless human motion tracker. Movement of the thoracic and lumbar spine was quantified with 12 strain gauge sensors, which were positioned paravertebrally on both sites along the thoracic and lumbar spine. To interpret angular movement, a motionscore was developed based on newly defined axioms on the biomechanics of the injured spine. RESULTS: Self-extrication showed the least spinal movement (overall motionscore sum = 667). Movement in the cervical spine could further be reduced by applying a cervical collar. The extrication by a rescue boa showed comparable results in overall spinal movement compared to the traditional extrication via spineboard (overall motionscore sum = 1862vs. 1743). Especially in the cervical spine, the spinal movement was reduced (motionscore sum = 339 vs. 595). However, the thoracic spine movement was increased (motionscore sum = 812 vs. 432). CONCLUSION: In case of a suspected cervical spine injury, guided self-extrication seems to be the best option. If the patient is not able to perform self-extrication, using a rescue boa might reduce cervical spinal movement compared to the traditional extrication procedure. Since promising results are shown in the case of extrication using a patient transfer sheet that has already been placed below the driver, future developments should focus on novel vehicle seats that already include an extrication device.

The acceptance of CIRS among orthopedic and trauma surgeons in Germany-Significant gap between positive perception and actual implementation in daily routine.

PURPOSE: Medical errors are the third leading cause of death in the United States after malignant tumors and cardiovascular disease. Handling of errors becomes more and more eclectic due to the implementation of incident reporting systems and the use of checklists. Since 2015, any German hospital would have a critical incident reporting system (CIRS). The aim of this study is to discover the nationwide utilization and attitude toward CIRS of orthopedic and trauma surgeons. METHODS: Between April 10, 2015 and May 22, 2015, a web-based questionnaire, which was designed by an expert team consisting of orthopedic and trauma surgeons, aeronautic human factors specialists, and psychologists (Lufthansa Aviation Training), was sent to all members of the German Society for Orthopedic and Trauma Surgery. The survey consisted of three questions regarding CIRS and its use in German hospitals. RESULTS: A total of 669 orthopedic and trauma surgeons working in German hospitals completed the questionnaire. All participants rated CIRS as useful, although 71.3% of participants did not report a critical incident in the last 12 months. In that time period, only 13.4% of participating residents reported at least one incident, but 44.7% of chief physicians reported one incident within the same period. CONCLUSION: The present study demonstrates that even though CIRS as a tool is positively appreciated by orthopedic and trauma surgeons working in German hospitals, many do not know about its existence at their own hospital. This can be a reason for the low number of critical incidents reported.

Early hypothermia as risk factor in severely burned patients: A retrospective outcome study.

INTRODUCTION: Burn trauma-related hypothermia is a frequent observation but risk factors and impact on patient related outcome are ambiguously reported. It is expected that hypothermia is associated with increased mortality and reduced overall outcome in severely burned patients, but available evidence is limited. METHODS: This retrospective single-center-study reviewed preclinical service protocols and medical records of patients sustaining a burn with a total body surface area (TBSA) ≥15% from 2008 to 2012. General patient and burn specific characteristics, outcome parameters as well as body temperature at admission measured via urine catheter or nasal temperature probe were recorded and statistically analyzed comparing normothermic (≥36 °C), mild hypothermic (<36 °C) and severely hypothermic (<34.5 °C) patients. Chi-square test was performed to demonstrate impact of hypothermia on primary outcome parameters and to reveal risk factors for developing hypothermia. To assess independent influences on mortality, a multivariate logistic regression analysis was performed. RESULTS: Out of 300 patients matching inclusion criteria, a sufficient record of temperature was found in 144 patients (48%). Out of 141 eligible patients with an average burn extent (SD) of 33.38% (24.5%) TBSA, 31.9% (n = 45) suffered from severe hypothermia (<34.5 °C) and 28.4% (n = 40) showed mild hypothermia. Total burn extent, presence of full thickness burns, presence of inhalation injury, preclinical mechanical ventilation and administration of sedative drugs were risk factors for developing hypothermia. Patients' age, total burn extent and presence of full thickness burns could be identified as independent factor for mortality. Although a trend towards an independent positive influence of normothermia at admission on mortality was seen, it was not statistically significant. CONCLUSION: Incidental hypothermia of burned patients is associated with an increased mortality and needs to be addressed by emergency health care providers and immediately at the burn center. Especially patients with extensive burns, full-thickness burns, inhalation injury or patients undergoing preclinical intubation are at risk for hypothermia and benefit from any measures for temperature preserving.

Bedside-measurement of serum cholinesterase activity predicts patient morbidity and length of the intensive care unit stay following major traumatic injury.

Major traumatic injury (MTI), a life-threatening condition requiring prompt medical intervention, is associated with an extensive inflammatory response often resulting in multiple organ dysfunction. Early stratification of trauma severity and the corresponding inflammation may help optimize resources at the intensive care unit (ICU). The cholinergic system counters inflammation by quickly modulating the immune response. Serum cholinesterase (butyrylcholinesterase, BChE) is an enzyme that hydrolyses acetylcholine. We tested whether a change in the BChE activity correlates with the morbidity and the length of ICU stay. Blood samples from 10 healthy volunteers and 44 patients with MTI were gathered at hospital admission, followed by measurements 12, 24 and 48 hours later. Point-of-care approach was used to determine the BChE activity. Disease severity was assessed by clinical scoring performed within 24 hours following hospital admission. BChE activity, measured at hospital admission, showed a significant and sustained reduction and correlated with disease severity scores obtained 24 hours following admission. BChE activity, obtained at hospital admission, correlated with the length of ICU stay. Bedside measurement of BChE activity, as a complementary addition to established procedures, might prove useful in the primary assessment of the disease severity and might therefore optimize therapy in the ICU.

Injury patterns in professional motorbike racing: a retrospective analysis of 728 falls.

BACKGROUND: In professional motorbike racing falls with high velocities are common. Nonetheless, severe injuries or deaths are rare when compared to regular road traffic. METHODS: In this study, falls in all courses of the largest German race series IDM*Superbike between 2007 and 2013 were analyzed regarding injury patterns and hospital admissions. All races were accompanied by a medical team, including at least one physician who assessed every patient. RESULTS: A total of 728 falls were included. A specific fall mechanism could be determined in 45.5% of the cases. 40.5% were admitted to a trauma center for further diagnostics. A definitive diagnosis was found in 45.4%. In most cases (29.9%) the injury pattern was a fracture of the extremities. In collisions a significantly higher odds ratio of 2.52 (P=0.0001) and in undetermined falls a significantly lower odds ratio of 0.47 (P<0.0001) was observed. CONCLUSIONS: Fall patterns in professional motorbike racing do not significantly correlate with the severity of the injury. Thus, as in regular patient evaluation, each patient has to be examined thoroughly to avoid misinterpretation.

Performance Assessment of Emergency Teams and Communication in Trauma Care (PERFECT checklist)-Explorative analysis, development and validation of the PERFECT checklist: Part of the prospective longitudinal mixed-methods EPPTC trial.

BACKGROUND: Trainings in emergency medicine are well structured, but examinations are rarely validated. We are evaluating the impact of pre-hospital emergency trainings on participants and patient care and developed and validated a checklist to assess emergency trainings. METHODS: We used videos recorded at the time points directly before (t0), directly after (t1), and one year after (t2) training to develop the PERFECT checklist (Performance Assessment of Emergency Teams and Communication in Trauma Care). The videos were assessed using semi-qualitative/linguistic analysis as well as expert panel appraisal and recommendations using the Delphi method. The checklist was tested for validity and reliability. RESULTS: The inter-rater reliability (ICC = 0.99) and internal consistency (α = 0.99) were high. Concurrent validity was moderate to high (r = 0.65 -r = 0.93 (p<0.001)). We included scales for procedures, non-technical skills, technical skills and global performance. The procedures were done faster in the mean over the timeline (t0: 2:29, 95%CI 1:54-3:03 min., t1: 1:11, 95%C 0:53-1:30 min, t2: 1:14, 95%CI 0:56-1:31 min.). All experts rated the recorded scenarios at t0 with the lowest sum score (mean 31±8), with a significantly better performance of the teams at t1 (mean 69±7). The performance at t2 (mean 66 ± 13) was slightly lower than at t1, but still better than at t0. At t1 and t2, linguistic analysis showed a change in the team leaders communication behaviour, which can be interpreted as a surrogate parameter for reduced stress. CONCLUSION: The PERFECT checklist has a good validity and high reliability for assessing trauma procedures and teamwork.

Influence of demographic factors and clinical status parameters on long-term neurological, psychological and vegetative outcome following traumatic brain injury.

PRIMARY OBJECTIVE: We evaluated the neurologic, psychological and vegetative outcome, the health status and changes of the personal and occupational status of patients after traumatic brain injuries (TBIs). Correlations between outcome parameters and basic demographic factors and initial clinical status parameters of the patients were assessed. RESEARCH DESIGN: Monocentric, retrospective follow-up analysis. METHODS AND PROCEDURES: We evaluated the neurologic, psychological and vegetative outcome and health status of patients, who survived TBI with a mean follow-up time of 54 months. Glasgow Outcome Scale (GOS), Disability Rating Scale (DRS) and a questionnaire on Quality of Life were used for outcome measurement. The personal and occupational status, trauma-derived changes to that status and medical and demographic factors that have an impact on the health condition of patients after TBI were assessed. MAIN OUTCOMES AND RESULTS: With a median GOS of 5.0 and median DRS of 3.0, our patients showed just moderate disabilities. Fifty-six per cent of the patients felt 'very good' or 'good'. Age, gender, the preclinical Glasgow Coma Scale (GCS), state of pupil reaction and surgical treatment did not seem to affect the GOS or DRS. Correlations between body mass index, age and gender and distinct neurologic, psychological and vegetative symptoms were found. The personal status did not change significantly after TBI. Changes to occupational and socioeconomic status were evident. CONCLUSIONS: One-third of the patients are heavily affected by neurological, psychological and vegetative symptoms after surviving TBI. Some demographic factors affected this integrity.

[Safety Culture in Orthopaedic Surgery and Trauma Surgery - Where Are We Today?] / Sicherheitskultur in Orthopädie und Unfallchirurgie ­ wo stehen wir heute?

INTRODUCTION: The development of a new safety culture in orthopaedics and trauma surgery needs to be based on the knowledge of the status quo. The objective of this research was therefore to perform a survey of orthopaedic and trauma surgeons to achieve a subjective assessment of the frequency and causes of "insecurities" or errors in daily practice. METHODS: Based on current literature, an online questionnaire was created by a team of experts (26 questions total) and was sent via e-mail to all active members of a medical society (DGOU) in April 2015. This was followed by two reminder e-mails. The survey was completed in May 2015. The results were transmitted electronically, anonymously and voluntarily into a database and evaluated by univariate analyses. RESULTS: 799 active members took part in the survey. 65% of the interviewed people stated that they noticed mistakes in their own clinical work environment at least once a week. The main reasons for these mistakes were "time pressure", "lack of communication", "lack of staff" and "stress". Technical mistakes or lack of knowledge were not of primary importance. CONCLUSIONS: The survey indicated that errors in orthopaedics and trauma surgery are observed regularly. "Human factors" were regarded as a major cause. In order to develop a new safety culture in orthopaedics and trauma surgery, new approaches must focus on the human factor.