Femoroacetabular Variations Are Predisposing Factors for Traumatic Posterior Hip Dislocation.

BACKGROUND: Although high-energy trauma mechanisms are generally considered to cause traumatic posterior hip dislocations, femoroacetabular variations are assumed to contribute to low-impact hip dislocations. Thus, the present study aimed to identify morphologic femoral and acetabular risk factors that may also contribute to posterior hip dislocations in high-energy trauma mechanisms. METHODS: The acetabular and femoral morphology of 83 hips with a traumatic posterior dislocation following a high-energy trauma mechanism were analyzed and matched to a control group of 83 patients who sustained high-energy trauma without a hip injury. The lateral center-edge angle, acetabular index, acetabular depth/width ratio, cranial and central acetabular version angles, and the anterior and posterior acetabular sector angles were measured on computed tomography to quantify femoroacetabular impingement (FAI) morphology, acetabular version, and coverage. The caput-collum-diaphyseal angle and the alpha angles in the coronal and axial planes were measured to detect cam-type FAI deformity. A receiver operating characteristic curve was utilized to determine threshold values for an increased risk of hip dislocation. RESULTS: Acetabular retroversion and posterior acetabular undercoverage were significantly increased in patients with hip dislocations compared with controls (p < 0.001). The central acetabular version angle and posterior acetabular sector angle that indicated an increased risk of hip dislocation were ≤9° and ≤90°, respectively. Cam-type FAI deformity and coxa valga were significantly increased in the dislocation group (p < 0.001). The anterolateral alpha angle that indicated an increased dislocation risk was ≥47°. CONCLUSIONS: Acetabular retroversion, posterior acetabular undercoverage, and cam-type FAI morphology may be risk factors contributing to traumatic posterior hip dislocation in high-energy trauma mechanisms. LEVEL OF EVIDENCE: Prognostic Level III . See Instructions for Authors for a complete description of levels of evidence.

Intermediate to Long-Term Results Following Traumatic Hip Dislocation: Characteristics, CT-Based Analysis, and Patient-Reported Outcome Measures.

BACKGROUND: Traumatic hip dislocation is a rare yet severe injury. As the long-term morbidity, subsequent complications, and clinical outcomes are nearly unknown, we aimed to analyze traumatic hip dislocations and identify specific factors that may predict the clinical outcome. METHODS: Data on injury-related characteristics and computed tomographic (CT) scans for all consecutive adult patients who had been managed for traumatic hip dislocation between 2009 and 2021 were analyzed. At the time of follow-up, the patients were assessed with regard to osteonecrosis, posttraumatic osteoarthritis (OA), further operations and complications, return to sports and work, and patient-reported outcome measures (PROMs), including the Tegner Activity Scale and modified Harris hip score. RESULTS: One hundred and twelve patients (mean age [and standard deviation], 43.12 ± 16.6 years) were included. Associated acetabular rim and femoral head fractures (Pipkin Type I to IV) were observed in 44% and 40% of patients, respectively. Concomitant injuries occurred in 67% of the patients, most commonly involving the knee (29% of patients). Sixty-nine patients (61.6%) were available for follow-up; the mean duration of follow-up was 6.02 ± 3.76 years. The rates of osteonecrosis and posttraumatic OA were 13% and 31.9%, respectively, and were independent of the timing of hip reduction, leading to subsequent total hip arthroplasty (THA) in 19% of patients. Sciatic nerve injury occurred in 27.5% of the patients who were available for follow-up. Both THA and sciatic nerve injury were associated with posterior acetabular rim or Pipkin Type-IV fractures (p < 0.001). Only 33.3% of the patients returned to their pre-injury level of sports, 24.6% did not return to work, and 27.5% reported having sexual dysfunction. PROMs (Tegner Activity Scale, modified Harris hip score) were significantly worse in patients with osteonecrosis, posttraumatic OA, or residual sciatic nerve injury (p < 0.05). CONCLUSIONS: Traumatic hip dislocations are predominantly associated with Pipkin and acetabular rim fractures, leading to overall limitations of activities of daily living, sports, and sexual function at intermediate to long-term follow-up. Patients with associated acetabular rim or Pipkin Type-IV fractures are most likely to require THA for the treatment of osteonecrosis or posttraumatic OA and are at greater risk for sustaining sciatic nerve injury. LEVEL OF EVIDENCE: Prognostic Level IV . See Instructions for Authors for a complete description of levels of evidence.

[Intrahospital trauma flowcharts : Cognitive support for optimization and acceleration of resuscitation room management of patients with severe injuries and polytrauma]. / Intrahospitale Trauma-Flowcharts : Kognitive Unterstützung zur Optimierung und Beschleunigung des Schockraummanagements von schwerverletzten und polytraumatisierten Patienten.

Morbidity and mortality after severe injury remain high despite substantial improvements in management and care over the past two decades, especially in the early phase of treatment. This is mainly due to still existing and insufficient adherence to evidence-based guidelines. The latter are considered the backbone of optimum treatment of the severely injured; however, the complexity and format often still preclude their clinical acceptance and immediate use in the resuscitation room. As a result of a close colaboration between two French medical societies a series of user-friendly flowcharts were developed as cognitive aids to support early acute diagnosis and treatment for the resuscitation room management of severely injured patients. These have been translated and adapted to the current "S3 Guideline on the Clinical Management of Severe Injuries and Polytrauma" coordinated by the Association of Scientific Medical Societies in Germany (AWMF).

[Affect, medicine and public enlightenment: the origin of the film genre "Deutscher Kulturfilm"]. / Emotion, Medizin und Volksbelehrung: die Entstehung des "deutschen Kulturfilms".

This article describes the process of professionalisation of medical films in Germany between 1910 and 1920. At the beginning of this decade, government institutions showed a growing interest in hygiene campaigns and started to cooperate with medical experts as well as with professional advertisers. When the German film industry was nationalised at the end of World War I, these informal structures were strengthened. New theories described the film as a most powerful tool for propaganda purposes. This profoundly changed the expectations towards medical films. Now their content had to be bedded into the dramatised form of a photoplay. After 1918, in anticipation of the reprivatisation of the German film industry, government officials of the Weimar Republic developed complex measures to obtain and keep control over a new genre of documentary film which was now called "Deutscher Kulturfilm". Some of the political expectations linked to the Kulturfilm can be exemplified in the first documentary of feature length released by the Berlin-based Universal Film Corporation in 1920. It contained elements of medical films that had been shot during the last decade of the German Empire, and it was newly composed in 1919 to meet the presumable needs of a broader public in an uncertain democratic future.

[Lectures, hospital practice, and a popular audience in relation to the popularization of medical thought during the 1830ies: the Magdeburg physician August Ferdinand Brüggemann]. / ..... Eine populäre und zweckmässige Darstellung von Gegenständen, die dem denkenden Menschen wichtig sind." Lehre, Krankenversorgung und Laienvorträge in ihrer Beziehung zur Popularisierung medizinischen Wissens in den 1830er Jahren. Das Beispiel des Magdeburger Arztes August Ferdinand Brüggemann.

Medical thought can be spread in different ways. This article deals with popular handbooks, lectures, medical teaching and hospital practice performed by August Ferdinand Brüggemann during the 1830ies. The physician from Magdeburg was no university teacher of great renown, like the professors lecturing at the centres of academic research in Berlin, Jena or Leipzig. Instead he taught former barber surgeons at a small medical academy to make them fit for the requirements of a more modern medical care. Analyzing his papers, popular books, lectures and bedside teaching may cast some light on how everyday practice and medical thought changed during a period which has been pompously described as the dawn of scientific medicine. These more basic approaches may have substantially contributed to the popularization of scientific thought.