Publications by authors named "Andre Strahl"

Introduction: Patients with primary hip osteoarthritis undergoing unilateral total hip arthroplasty (THA) often face uncertainty about the future need for arthroplasty in the contralateral hip. We aimed to identify parameters that have predictive value with regard to the necessity for contralateral THA or the development of contralateral radiographic osteoarthritis (OA) phenotypes following index surgery.

Materials And Methods: In this retrospective study, we analyzed 220 patients undergoing THA.

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Background: Patient-reported experience measures (PREMs) are valuable tools to evaluate patient-centredness (PC) from the patients' perspective. Despite their utility, a comprehensive PREM addressing PC has been lacking. To bridge this gap, we developed the preliminary version of the Experienced Patient-Centeredness Questionnaire (EPAT), a disease-generic tool based on the integrative model of PC comprising 16 dimensions.

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(1) Background: The aim of this study was to evaluate the safety of intraoperative cell salvage (ICS) during reimplantation in the two-stage revision of septic hip arthroplasties. (2) Methods: As part of an internal quality control study, blood cultures were taken from the processed ICS blood during reimplantation and examined for possible bacterial load (study group). Due to a high rate of bacterial detection with uncertain clinical significance, consecutive ICS samples were also examined from patients undergoing aseptic revision hip arthroplasty (control group).

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  • Pediatric traumatology requires deep knowledge of bone development and treatment methods, leading to a study on doctors' willingness to embrace telemedicine for better patient care.
  • A survey sent to 800 healthcare practitioners in Hamburg revealed a low response rate of 19.3%, with less than half using telemedicine, yet 75% showed interest in collaborating with hospitals.
  • The findings emphasize a need for personalized communication methods in telemedicine, alongside strong data protection, and suggest further research to assess the effectiveness of these collaborations in treating pediatric trauma.
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Poor bone quality is a critical factor associated with an increased risk of complications after total hip arthroplasty (THA). However, no consistent recommendations have yet been established for assessing indicators of bone quality preoperatively. Thus, it remains unclear which preoperatively available and readily accessible parameters are most closely associated with femoral bone quality.

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  • The study aimed to identify patient-specific factors that increase the likelihood of needing a blood transfusion after total hip arthroplasty (THA), where transfusions have become rare.
  • Researchers analyzed 2,892 elective THA patients and assessed various factors like age, BMI, ASA grade, sex, and preoperative hemoglobin levels to determine their impact on transfusion risk.
  • The results indicated that being over 73 years old, having a hemoglobin level below 7.6 mmol/l, and a BMI of 35.4 kg/m² or higher were significant predictors of needing a transfusion, allowing for preventive strategies to be implemented based on these factors.
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  • This study investigates how the position of the hinge and the height of the osteotomy gap affect the angles in the leg during a specific orthopedic procedure called medial opening-wedge high tibial osteotomy (mowHTO).
  • The research found that the medial proximal tibia angle (MPTA) is influenced by gap height when the hinge is lateral, while hinge rotation affects MPTA when the hinge is positioned more posteriorly.
  • Ultimately, the study suggests that to avoid increasing the posterior tibial slope (PTS), a straight lateral hinge position should be used during the procedure.
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Introduction: Distal radius fracture (DRF) is one of the three most common fractures of the human body with increasing incidences in all groups of age. Known causes of increasing incidence, such as ageing of the population or increased obesity, have been described and discussed. So far, literature reports ambivalent effects of body mass index (BMI) on bone physiology.

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Purpose: Dissatisfaction after total knee arthroplasty (TKA) is a prevalent and clinically relevant problem that affects approximately 10%-20% of patients. The aim of this study is to identify factors associated with dissatisfaction 1 year after TKA.

Methods: A total of 236 patients undergoing TKA were included in this prospective cohort study.

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  • Malignant spinal lesions (MSLs) often signal advanced cancer, making quick and effective spinal care vital for patient outcomes.
  • The study compared cytopathology (CP) and histopathology (HP) in 61 patients, finding that CP provided a mean time to diagnosis (TTD) of 1.7 days versus 8.4 days for HP, significantly speeding up care.
  • Results indicate that CP not only shortens TTD and time to therapy (TTT) but may also improve treatment initiation and overall patient quality of life, suggesting it should be standard practice for MSL evaluation.
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Background: Whole-Body CT (WBCT) is frequently used in emergency situations for promptly diagnosing paediatric polytrauma patients, given the challenges associated with obtaining precise details about the mechanism and progression of trauma. However, WBCT does not lead to reduced mortality in paediatric patients, but is associated with high radiation exposure. We therefore wanted to develop a screening tool for CT demand-driven emergency room (ER)-trauma diagnostic to reduce radiation exposure in paediatric patients.

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Introduction: Pelvic fractures are serious and oftentimes require immediate medical attention. Pelvic binders have become a critical tool in the management of pelvic injuries, especially in the prehospital setting. Proper application of the pelvic binder is essential to achieve the desired result.

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  • Proximal femur fractures (PFF) in elderly patients significantly affect mobility and have high mortality rates, necessitating effective treatment.
  • Advances in surgical and intensive care have improved treatment options, but there's limited research on outcomes for very elderly patients (≥90 years) after such interventions.
  • A study of 148 patients showed a 22% in-hospital mortality rate and a 44% one-year survival rate, identifying higher CCI and SOFA scores at ICU admission as predictors of all-cause mortality, and demonstrating that 53% of those living independently before admission could return home after treatment.
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Introduction: Femoral stem subsidence is a known complication after uncemented total hip arthroplasty (THA). The purpose of this study was to determine the frequency of osteoporosis and to investigate the relationship between areal bone mineral density (aBMD) and subsidence in a cohort of patients younger than 70 years.

Methods: One hundred consecutive patients (age 60 ± 6 years; 52 female, 48 male) undergoing uncemented THA using a collarless press fit femoral stem were retrospectively reviewed.

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Background: Various salvage surgical procedures for painful hip dislocation in adolescent patients with cerebral palsy exist. To date, no significant differences among these surgical techniques have been described. In our institution the McHale procedure is the standard of care for painful chronically dislocated hips with or without deformity of the femoral head in patients with cerebral palsy.

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  • The study explored how patients' knowledge about their condition and surgical procedures affects their quality of life after total hip arthroplasty (THA).
  • It involved 176 patients and utilized questionnaires to assess health-related quality of life (HRQoL), health literacy (HL), and satisfaction with the information received before surgery.
  • Results showed that while satisfaction with information and functionality were linked to improved HRQoL one month post-surgery, health literacy did not significantly predict outcomes after one year.
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  • The study examines the advancements in high-resolution peripheral quantitative computed tomography (HR-pQCT), particularly comparing its first-generation (XCT1) and second-generation (XCT2) models in measuring bone microstructure.
  • XCT2 demonstrated significantly improved image quality with lower motion artifacts, showing that motion-corrupted scans decreased by more than half at the radius and improved image quality at the tibia.
  • The finders also highlight that factors such as age, gender, and body size influence motion artifacts, indicating that special care is needed for specific patient groups during scans.
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A clear recommendation regarding treatment strategy of fragility fractures of the pelvic ring is missing. The most typical fracture pattern is a lateral compression type injury with non-displaced fractures of the anterior pubic rami and a unilateral os sacrum fracture (FFP II). We hypothesized that operative treatment would be superior to conservative treatment.

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Introduction: Apps, in general, are an integral part of our daily lives. To investigate the current usage behaviour of trauma surgeons and radiologists regarding medical apps in clinical practice and to find out if and how the current range of medical apps can be improved, we surveyed trauma surgeons and radiologists in northern Germany. .

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(1) Background: intraoperative cell salvage (ICS) devices can provide a valuable contribution to patient blood management. An infection of the surgical site presents a formal contraindication to the use of ICS. To date, there is no recommendation for the use of ICS in the context of reimplantation in two-stage septic exchange arthroplasty.

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Introduction: Several studies have reported good to excellent outcomes of revision total hip arthroplasty (rTHA) using allografts for treating severe acetabular bone defects. However, precise information on the impact of allograft type and reconstruction method is not available.

Material And Methods: Systematic literature search was performed in Medline and Web of Science including patients with acetabular bone loss classified according to the Paprosky classification who underwent rTHA involving the use of allografts.

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Purpose: Calibration of radiographs is a critical step in digital templating for hip arthroplasty. Calibration errors of > 1.5% lead to over- or undersizing of the templated implants and may affect logistics and patient safety.

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Objective: Bone stress injuries (BSIs) are classified in clinical practice as being at low- or high-risk for complication based on the injury location. However, this dichotomous approach has not been sufficiently validated. The purpose of this systematic review was to examine the prognostic role of injury location on return-to-sport (RTS) and treatment complications after BSI of the lower extremity and pelvis.

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Background: Patellar dislocation is a common injury in children and adolescents. There is a lack of information about concomitant osteochondral lesions in these patients.

Hypothesis: We hypothesized that the likelihood of chondral or osteochondral lesions would increase with each prior patellar dislocation and that the appearance of lesions in surgically treated children and adolescents would be influenced by age, sex, injury mechanism, and body mass index (BMI).

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