Roberta Laggner

Dr. Roberta Laggner

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Research Focus & Metrics

Academic Career Length

7Years (2020-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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11 April 2023 in Antibiotics
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RLRoberta Laggner
Roberta Laggner
Benan TanerBenan Taner
Benan Taner
JSJennifer Straub
Jennifer Straub
Thomas TiefenboeckThomas Tiefenboeck
Thomas Tiefenboeck
HBHarald Binder
Harald Binder
Christoph BöhlerChristoph Böhler
Christoph Böhler
In elderly patients with femoral neck fractures, preoperative serum C-reactive protein (CRP) values might be elevated due to active infections. Although there are limited data on CRP as a predictor of periprosthetic joint infection (PJI), out of concern, this could lead to delayed surgery. Therefore, we aim to investigate whether elevated serum-CRP levels justify delayed surgery for femoral neck fractures. A retrospective analysis was performed of the records of patients undergoing arthroplasty who were found to have an elevated CRP level of 5 mg/dL or more between January 2011 to December 2020. The patients were stratified to three groups, according to initial serum CRP levels at a cut off of 5 mg/dL and the time between admission and surgery (<48 vs. ≥48 h after admission). This study revealed that the patients with elevated serum CRP levels and delayed surgery showed a worse survival rate and significantly more postoperative complications than the patients on whom surgery was performed immediately. There were no significant differences in terms of PJI and prolonged wound healing in the inter-group comparison. Therefore, delays to surgery on the basis of elevated CRP values offer no benefits to patients with femoral neck fractures.

21 February 2020 in Journal of Clinical Medicine
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NBNina Buchtele
Nina Buchtele
HHHarald Herkner
Harald Herkner
CSChristian Schörgenhofer
Christian Schörgenhofer
AMAnne Merrelaar
Anne Merrelaar
RLRoberta Laggner
Roberta Laggner
MSMichael Schwameis
Michael Schwameis
Transition from cangrelor to oral P2Y12 inhibitors after PCI carries the risk of platelet function recovery and acute stent thrombosis. Whether the recommended transition regimen is appropriate for hypothermic cardiac arrest survivors is unknown. We assessed the rate of high platelet reactivity (HPR) after transition from cangrelor to ticagrelor in hypothermic cardiac arrest survivors. Adult survivors of out-of-hospital cardiac arrest with ST-segment elevation myocardial infarction (STEMI), who were treated for hypothermia (33 °C ± 1) and received intravenous cangrelor during PCI and subsequent oral loading with 180mg ticagrelor were enrolled in this prospective observational cohort study. Platelet function was assessed using whole blood aggregometry. HPR was defined as AUC > 46U. The primary endpoint was the rate of HPR (%) at predefined time points during the first 24 h after cangrelor cessation. Poisson regression was used to estimate the relationship between the overlap time of cangrelor and ticagrelor co-administration and the number of subsequent HPR episodes, expressed as incidence rate ratio (IRR) with 95% confidence interval (95%CI). Between December 2017 and October 2019 16 patients (81% male, 58 years) were enrolled. On average, ticagrelor was administered 39 min (IQR 5–50) before the end of cangrelor infusion. The rate of HPR was highest 90 min after cangrelor cessation and was present in 44% (7/16) of patients. The number of HPR episodes increased significantly with decreasing overlap time of cangrelor and ticagrelor co-administration (IRR 1.03, 95%CI 1.01–1.05; p = 0.005). In this selected cohort of hypothermic cardiac arrest survivors who received cangrelor during PCI, ticagrelor loading within the recommended time frame before cangrelor cessation resulted in a substantial amount of patients with HPR.

11 October 2023 in Scientific Reports
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RLRoberta Laggner
Roberta Laggner
AOAnastasia Oktarina
Anastasia Oktarina
RWReinhard Windhager
Reinhard Windhager
MBMathias P. G. Bostrom
Mathias P. G. Bostrom
While previous studies on navigated total hip replacement (nTHA) focused on acetabular component positioning, we compared the results of nTHA with conventional total hip replacement (cTHA) in respect of changes in leg length and hip offset. In a single-center study results radiographic parameters of patients with unilateral THA were included. Data were retrospectively analyzed from computer navigation data and radiographs. Analysis concentrated on the discrepancy in leg length (LLD) and hip offset (OSD) between the affected and unaffected hip. The effect of the procedure was defined as the difference between postoperative and preoperative LLD and OSD values in each group. 2332 patients were analyzed. Both nTHA and cTHA were effective in restoring LLD and OSD by reducing the preoperative value significantly (p < 0.001). Regarding changes in LLD, no statistical difference between nTHA and cTHA could be found. Changes in OSD nTHA was a slightly more effective than cTHA (− 2.06 ± 6.00 mm vs. − 1.50 ± 5.35 mm; p < 0.05). Both navigated and conventional THA were successful in reconstruction of leg length and hip offset, while postoperative offset discrepancy was significantly lower in the navigated group at the cost of longer operation times. If these results are clinically relevant further investigation is needed.

9 August 2024 in Journal of Clinical Medicine
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RLRoberta Laggner
Roberta Laggner
DHDominikus Huber
Dominikus Huber
THTimothy Hasenoehrl
Timothy Hasenoehrl
JSJulia Sternik
Julia Sternik
MMMichaela Stoffer Marx
Michaela Stoffer Marx
SHStephan Heisinger
Stephan Heisinger
Background: Fractures of the distal radius are among the most common bone injuries, and their frequency is constantly increasing, leading to an elevated need for subsequent rehabilitation. This growing need has led to the emergence of online content aimed at providing guidance on rehabilitation. Nonetheless, unreviewed online content raises concerns about its reliability; therefore, the objective of this study was to evaluate the quality, reliability, and comprehensiveness of online videos concerning rehabilitation following a distal radius fracture. Methods: A total of 240 YouTube videos were screened, identifying 33 videos that met the inclusion criteria. These selected videos were evaluated by five independent experts from various professional groups, using the Global Quality Scale, the DISCERN reliability tool, and the JAMA Benchmark Score, as well as a structured set of questions to assess their comprehensiveness and coverage of pertinent aspects. Results: The observers’ assessment of the Global Quality Scale exhibited a broad spectrum of viewpoints, indicating considerable variability in evaluations. In most cases, therapy aligned well with the diagnosed condition, and most raters deemed the indication and instruction in the videos acceptable. A proportion of 87% of the videos was deemed suitable for home training by at least three raters. However, a concerning trend emerged, as potential risks and pitfalls were scarcely addressed. Conclusions: The moderate overall quality of the videos and the divergence in expert opinions highlight the need for a regulatory authority to ensure adherence to guidelines and maintain high-quality content. Additionally, our results raise concerns about the applicability of established assessment tools in this context.

31 August 2025 in Journal of Clinical Medicine
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RLRoberta Laggner
Roberta Laggner
CGCornelia Beatrix Gaertner
Cornelia Beatrix Gaertner
EGEmily Ghanbari Emily Ghanbari
Emily Ghanbari Emily Ghanbari
FBFlorian Bur
Florian Bur
MHMichael Humenberger
Michael Humenberger
THThomas Haider
Thomas Haider
Background: The optimal timing of surgical treatment for ankle fractures remains a topic that is associated with clinical uncertainty. While delayed surgery is often necessary for safe wound closure, prolonged immobilization, impaired functional outcomes, protracted hospitalization, and an increased risk of infection are potential disadvantages. This study was aimed at investigating the interval between trauma, surgical fixation, and postoperative infections among patients with closed ankle fractures. Methods: We conducted a retrospective cohort study involving 224 patients treated surgically for fractures of the upper ankle joint between January 2020 and December 2023. The patients were stratified into two groups based on surgical timing: within 24 h of hospital admission (early surgery) or after 24 h (delayed surgery). The primary outcome was the incidence of postoperative infections. A multivariate logistic regression model was constructed to assess independent risk factors. Results: Of the 224 patients, 30 (13.4%) developed postoperative infections. Infection occurred in 11.1% of patients who underwent early surgery and 13.7% of those subjected to delayed surgery. This difference was not statistically significant in the unadjusted analysis (p = 0.747). However, an additional day of surgical delay was associated with an 11% increase in the odds of postoperative infection (OR = 1.11; 95% CI: 1.01–1.22; p = 0.034). Female patients had over threefold higher odds of infection than males (OR = 3.20; 95% CI: 1.32–8.09; p = 0.011), and diabetes was a significant risk factor, with diabetic individuals showing more than fivefold increased odds (OR = 5.56; 95% CI: 1.30–25.00; p = 0.019). Patients with delayed surgery had significantly longer hospital stays (+2.83 days, p < 0.05). Conclusions: Early surgical intervention appears to lower the risk of postoperative infections, is associated with hospitalization duration, and should be considered when clinically appropriate.

4 August 2025 in Wiener klinische Wochenschrift
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Journal Article
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RLRoberta Laggner
Roberta Laggner
SPS. Payr
S. Payr
LAL. Adam
L. Adam
DBD. Baron
D. Baron
LZL. Zak
L. Zak
Summary: Musculocontractural Ehlers-Danlos syndrome (mcEDS) is a rare autosomal recessive connective tissue disorder characterized by fragility of skin, vasculature and musculoskeletal structures. We report a case of a young male with CHST14(Carbohydrate sulfotransferase 14)-related mcEDS who developed a massive subcutaneous hematoma following minor trauma, necessitating surgical evacuation. This case highlights the potential for life-threatening bleeding complications in mcEDS and underscores the importance of early recognition and multidisciplinary management.