Publications by authors named "Alexander Bumberger"

Purpose: The purpose of the study was to investigate the effect of mentorship on self-perceived theoretical and practical skill levels of German-speaking residents affiliated to a scientific society with a focus on sports medicine. It was hypothesized that orthopaedic surgery residents with a mentor would report higher subjective theoretical and practical skills and less apprehension towards performing surgeries unsupervised compared to those without mentors.

Methods: A 35-item questionnaire was distributed among resident members of AGA-Society for Arthroscopy and Joint-Surgery.

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Purpose: To compare short-term patient-reported outcomes (PRO) of two contemporary matrix-associated autologous chondrocyte implantation (M-ACI) products for the treatment of large articular cartilage defects of the knee.

Methods: A retrospective, registry-based, matched-pair analysis was performed, comparing PRO of patients undergoing isolated M-ACI with either Spherox™, a spheroid-based ACI (Sb-ACI), or NOVOCART™ Inject, a hydrogel-based ACI product (Hb-ACI), for a focal full-thickness cartilage defect of the knee ≥4 cm. Matching parameters included age, sex, body mass index, defect size, defect localization, symptom duration and previous surgeries.

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Purpose: This study aimed to analyze the risk of reoperation following autologous chondrocyte implantation (ACI) of the knee utilizing third-generation ACI products in a time-to-event analysis and report on the associated patient-reported outcome measures (PROM) in case of reoperation.

Methods: Patients undergoing ACI were included from a longitudinal database. Patient age, sex, body mass index (BMI), number of previous surgeries, lesion localization, lesion size, symptom duration, as well as time and type of reoperation was extracted.

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Background: Registry data provide valuable epidemiological insights that help to further improve process and outcome quality in patient care. The German Cartilage Registry (KnorpelRegister DGOU) was established in 2013 as an instrument for quality assurance after surgical cartilage regenerative procedures on hip, knee and ankle joints.

Data Collection: Participation in the German Cartilage Registry is optional for hospitals and practices.

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Purpose: To determine whether bipolar lesions (BL) are associated with inferior clinical outcome following articular cartilage regeneration (CR) compared to unipolar lesions (UL).

Methods: A registry-based study, including patients undergoing isolated CR for focal knee cartilage lesions was performed. Lesions were considered UL or BL depending on the opposing cartilage.

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Purpose: The aim of the present study was to investigate the potential associations between specific knowledge, resilience and patient-reported outcome measures (PROMS) following primary total hip arthroplasty (THA).

Methods: In a cross-sectional prospective study, consecutive patients following primary THA were included at a rehabilitation center. A novel knowledge score and the validated Connor Davidson Resilience Scale (CD-RISC) were utilized to assess patients' specific knowledge and resilience, respectively.

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Background: A significant percentage of patients have an unfavorable outcome following primary total knee arthroplasty (TKA). This study aimed to evaluate whether specific knowledge about the implant and resilience can influence the functional outcome following TKA.

Methods: A consecutive series of 163 patients following primary TKA at a mean age of 70 years (SD 9.

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Purpose: To investigate a risk stratification strategy for lesions of uncertain malignant potential (B3) diagnosed by vacuum-assisted breast biopsy (VABB) of mammographic microcalcifications.

Methods: Patients who underwent VABB for microcalcification-only lesions with a diagnosis of B3 and subsequent surgery were included in this retrospective, IRB-approved study. Seventy-six B3-lesions (final histology: 66 benign, 10 malignant) were included (Tr).

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Background: Measurement of intracranial pressure (ICP) is an essential part of clinical management of severe traumatic brain injury (TBI). However, clinical utility and impact on clinical outcome of ICP monitoring remain controversial. Follow-up imaging using cranial computed tomography (CCT) is commonly performed in these patients.

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Purpose: The aim of the current study was (1) to provide an overview of common definitions and classification systems of ramp lesions (RL) and (2) to systematically review the available literature with regard to the diagnosis and treatment of RLs in anterior cruciate ligament (ACL)-deficient knees.

Methods: Following the PRISMA guidelines, MEDLINE and Scopus were searched for articles (1) reporting on acute or chronic ACL injuries, (2) with concomitant medial meniscus injury, (3) located at the posterior meniscocapsular attachment site (and red-red zone). Ex vivo studies, reviews and technical notes were excluded.

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Purpose: To predict detection rates (DR) in second-look ultrasound of MRI-detected breast lesions by systematically combining clinical and anthropomorphic features.

Methods: A total of 104 suspicious breast-lesions, that were initially detected on breast MRI and underwent subsequent SLU from January 2013 through December 2013, were evaluated in this retrospective analysis. All images were reviewed by an experienced radiologist for this study.

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Purpose: Microcalcifications are a common finding in mammography and usually require invasive procedures to diagnose or exclude malignancy. As many microcalcifications are due to benign lesions, we wanted to assess whether breast MRI as an additional diagnostic tool may be used to distinguish benign from malignant in this setting.

Materials And Methods: Eligible for this retrospective, IRB-approved observational study were 858 consecutive patients (mean age 54±11years) undergoing stereotactically-guided biopsies of suspicious mammographic microcalcifications during three year at our institution.

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Synopsis of recent research by authors named "Alexander Bumberger"

  • - Alexander Bumberger's recent research primarily focuses on the fields of orthopaedic surgery and regenerative medicine, specifically examining mentorship effects on surgical residents, patient-reported outcomes in cartilage repair, and factors influencing surgical preparedness.
  • - Findings from his studies emphasize the importance of mentorship for enhanced self-assessment among surgical residents, highlight comparable effectiveness of different autologous chondrocyte implantation techniques, and reveal significant risk factors for reoperation in surgical candidates.
  • - Bumberger's work also showcases the utility of registry data for improving clinical practices in cartilage surgery and underscores the impact of patient knowledge and resilience on outcomes post-arthroplasty.