Full Text Journal Articles by
Author Christian Pfeifer

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The Incidence of Fractures Among the Adult Population of Germany – and Analysis From 2009 through 2019.

Markus Rupp, Nike Walter, Christian Pfeifer, Siegmund Lang, Maximilian Kerschbaum, Werner Krutsch, Florian Baumann, Volker Alt,

<h4>Background</h4>Detailed analyses of epidemiological data on fractures are an important resource for persons and institutions providing health care services, as they yield information on the effects of current treatment strategies and on the need for preventive measures. The epidemiology of fractures in Germany, however, is unknown. The goal of this ... Read more >>

Dtsch Arztebl Int (Deutsches Arzteblatt international)
[2021, (Forthcoming):]

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Higher risk of ACL rupture in amateur football compared to professional football: 5-year results of the 'Anterior cruciate ligament-registry in German football'.

Dominik Szymski, Leonard Achenbach, Johannes Zellner, Johannes Weber, Matthias Koch, Florian Zeman, Gunnar Huppertz, Christian Pfeifer, Volker Alt, Werner Krutsch,

<h4>Purpose</h4>Anterior cruciate ligament (ACL) injuries are a common severe type of football injury at all levels of play. A football-specific ACL registry providing both prospective ACL injury data according to the skill level and risk factors for ACL injury is lacking in the literature.<h4>Methods</h4>This study is based on the prospective ... Read more >>

Knee Surg Sports Traumatol Arthrosc (Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA)
[2021, :]

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Effects of Precipitation, Temperature and Wind in Alpine Areas on Backcountry Avalanche Accidents Reported in the Western Part of Austria within 1987-2009

Christian Pfeifer, Peter Höller,

In this article, we are going to investigate the effects of snow, rain, temperature and wind on the number of backcountry and off-piste avalanche accidents. The data base of our survey is restricted on the western part of Austria (federal states Tyrol and Vorarlberg) within the winter periods 1987/88--2008/09. We ... Read more >>

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Surgical Drill Guide for Insertion of an Infra-Acetabular Screw Based on an Anatomically Precontoured Plate System: A Cadaveric Study.

Viola Freigang, Maximilian Gottsauner, Markus Rupp, Christian Pfeifer, Stephan Grechenig, Alexander Kerner, Volker Alt, Florian Baumann,

<h4>Purpose</h4>Due to the anatomic structure of the pelvis, free-hand placement of screws in the acetabular fracture management can be difficult. Infra-acetabular screw fixation increases acetabular stability by distal fixation of the cup. Aim of this cadaveric study is to investigate if a plate-referenced drill guide can provide save placement of ... Read more >>

Biomed Res Int (BioMed research international)
[2021, 2021:2321504]

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The clinical use of bone graft substitutes in orthopedic surgery in Germany-A 10-years survey from 2008 to 2018 of 1,090,167 surgical interventions.

Markus Rupp, Lisa Klute, Susanne Baertl, Nike Walter, Gopala-Krishna Mannala, Leona Frank, Christian Pfeifer, Volker Alt, Maximilian Kerschbaum,

Aim of the study was to evaluate (1) the overall use of bone graft substitutes, autografts and allografts, (2) of different types of bone graft substitutes (calcium sulfate, calcium phosphate, calcium phosphate ceramics or polymethyl methacrylate) and of different bone grafts (cancellous vs. cortical), and (3) the use of antibiotic-loading ... Read more >>

J Biomed Mater Res B Appl Biomater (Journal of biomedical materials research. Part B, Applied biomaterials)
[2021, :]

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Infraspinatus shift for massive, posterosuperior tears yields good clinical outcome.

Leonard Achenbach, Pia Ahlers, Christian G Pfeifer, Stefan Greiner, Max J Kääb,

<h4>Aim</h4>To evaluate the functional outcome of partial reconstruction margin convergence in the treatment of massive, irreparable posterosuperior rotator cuff tear (RCT).<h4>Methods</h4>This retrospective, single-center study included all patients that were operated by means of a partial repair and infraspinatus shift for a massive, posterosuperior cuff tear between 2009 and 2016, either ... Read more >>

Arch Orthop Trauma Surg (Archives of orthopaedic and trauma surgery)
[2021, :]

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Invasive lobular carcinoma: clinicopathological features and subtypes.

Sabine Danzinger, Nora Hielscher, Miriam Izsó, Johanna Metzler, Carmen Trinkl, Christian Pfeifer, Kristina Tendl-Schulz, Christian F Singer,

<h4>Objective</h4>To analyze the characteristics of invasive lobular carcinoma (ILC) compared with invasive ductal carcinoma (IDC) and to investigate the impact of histology on axillary lymph node (ALN) involvement in luminal A subtype tumors.<h4>Methods</h4>We retrospectively analyzed patients diagnosed with ILC or IDC from 2012 to 2016 who underwent surgery. Patients constituted ... Read more >>

J Int Med Res (The Journal of international medical research)
[2021, 49(6):3000605211017039]

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"Anemia and Response to Neoadjuvant Chemotherapy in Breast Cancer Patients".

Sabine Danzinger, Alexandra Fügerl, Christian Pfeifer, Maria Bernathova, Kristina Tendl-Schulz, Michael Seifert,

We analyzed the effect of anemia on tumor response of patients with primary invasive breast cancer (BC) receiving neoadjuvant chemotherapy (NACT). The patient collective was very homogenous; finally, 74 BC patients with identical medication and duration of NACT were enrolled. After completion of NACT, 49 patients (66.2%) had a post-NACT ... Read more >>

Cancer Invest (Cancer investigation)
[2021, 39(6-7):457-465]

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Long-term patient-related quality of life after successfully treated aseptic non-unions of the long bones.

Nike Walter, Maximilian Kerschbaum, Christian Pfeifer, Daniel Popp, Viola Freigang, Thilo Hinterberger, Volker Alt, Markus Rupp,

<h4>Background</h4>Non-union after fracture depicts a devastating complication in trauma surgery and studies assessing patient-reported outcome measures after stable bone consolidation are rare. Therefore, we aimed to evaluate the long-term impact of aseptic long bone non-union on the patients' physical health state and psychological wellbeing. For this purpose, quality of life ... Read more >>

Injury (Injury)
[2021, 52(7):1880-1885]

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Long-term patient-related quality of life after fracture-related infections of the long bones.

Nike Walter, Markus Rupp, Katja Hierl, Christian Pfeifer, Maximilian Kerschbaum, Thilo Hinterberger, Volker Alt,

<h4>Aims</h4>We aimed to evaluate the long-term impact of fracture-related infection (FRI) on patients' physical health and psychological wellbeing. For this purpose, quality of life after successful surgical treatment of FRIs of long bones was assessed.<h4>Methods</h4>A total of 37 patients treated between November 2009 and March 2019, with achieved eradication of ... Read more >>

Bone Joint Res (Bone & joint research)
[2021, 10(5):321-327]

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Influence of Oral Anticoagulation and Antiplatelet Drugs on Outcome of Elderly Severely Injured Patients.

Maximilian Kerschbaum, Siegmund Lang, Leopold Henssler, Antonio Ernstberger, Volker Alt, Christian Pfeifer, Michael Worlicek, Daniel Popp,

<h4>Introduction</h4>Severely injured elderly patients have a poorer prognosis and higher mortality rates after severe trauma compared with younger patients. The aim of this study was to correlate the influence of pre-existing oral anticoagulation (OAC) and antiplatelet drugs (PAI) on the outcome of severely injured elderly patients.<h4>Methods</h4>Using a prospective cohort study ... Read more >>

J Clin Med (Journal of clinical medicine)
[2021, 10(8):]

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[Comparison of DRG revenues between fast and slow-track procedures for a two-stage replacement of prostheses for periprosthetic hip infections in the aG-DRG system 2020].

Katja Hierl, Markus Rupp, Michael Worlicek, Florian Baumann, Christian Pfeifer, Volker Alt,

<h4>Background</h4>The treatment of periprosthetic hip infections is usually cost intensive, so it is generally not cost effective for hospitals. In chronic infections, a two-stage procedure is often indicated, which can be done as a fast-track procedure with a short prosthetic-free interim interval (2-4 weeks) or as a slow-track procedure with a long prosthetic-free interim interval (over ... Read more >>

Orthopade (Der Orthopade)
[2021, 50(9):728-741]

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Epidemiological analysis of injury occurrence and current prevention strategies on international amateur football level during the UEFA Regions Cup 2019.

Dominik Szymski, Volker Krutsch, Leonard Achenbach, Stephan Gerling, Christian Pfeifer, Volker Alt, Werner Krutsch, Oliver Loose,

<h4>Introduction</h4>Football is the most popular sport worldwide and results in a high frequency of injuries. So far, mainly injuries in professional football have been investigated, and the literature lacks data regarding detailed injury epidemiology and current prevention data in amateur football tournaments.<h4>Materials and methods</h4>A prospective cohort study investigated an international ... Read more >>

Arch Orthop Trauma Surg (Archives of orthopaedic and trauma surgery)
[2021, :]

Cited: 1 time

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Post-operative septic arthritis after arthroscopy: modern diagnostic and therapeutic concepts.

Andreas Voss, Christian G Pfeifer, Maximilian Kerschbaum, Markus Rupp, Peter Angele, Volker Alt,

<h4>Purpose</h4>Septic arthritis is a significant complication following arthroscopic surgery, with an estimated overall incidence of less than 1%. Despite the low incidence, an appropriate diagnostic and therapeutic pathway is required to avoid serious long-term consequences, eradicate the infection, and ensure good treatment outcomes. The aim of this current review article ... Read more >>

Knee Surg Sports Traumatol Arthrosc (Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA)
[2021, :]

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Evaluation of joint awareness after acetabular fracture: Validation of the Forgotten Joint Score according to the COSMIN checklist protocol.

Viola Freigang, Johannes Weber, Karolina Mueller, Christian Pfeifer, Michael Worlicek, Volker Alt, Florian Michael Baumann,

<h4>Background</h4>A fracture of the acetabulum is an uncommon, but serious injury. Established outcome tools do not reflect the patient's perspective after fracture of the hip joint. Originally designed for post-arthroplasty patients, the Forgotten Joint Score (FJS) is a patient-reported outcome measurement (PROM) tool evaluating the disease-specific health-related quality of life ... Read more >>

World J Orthop (World journal of orthopedics)
[2021, 12(2):69-81]

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[Analysis of injury incidences in a trauma surgery university hospital during the SARS-CoV‑2 pandemic].

Daniel Popp, Michael Worlicek, Matthias Koch, Maximilian Kerschbaum, Markus Rupp, Andreas Schicho, Holger Künzig, Markus Zimmermann, Christian Pfeifer, Volker Alt,

<h4>Introduction</h4>The corona crisis of 2020 posed previously unknown challenges to hospitals providing acute care. In addition to the treatment of COVID-19 patients, universities and other acute care hospitals had to provide emergency medical care, including for patients undergoing trauma surgery. The challenge was that no reliable planning figures were available ... Read more >>

Unfallchirurg (Der Unfallchirurg)
[2021, 124(5):343-351]

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The Loop Tenodesis Procedure-From Biomechanics to First Clinical Results.

Moritz Riedl, Agnes Mayr, Stefan Greiner, Christian Pfeifer, Isabella Weiss, Lina Forchhammer, Volker Alt, Maximilian Kerschbaum,

(1) Introduction: Several surgical therapy options for the treatment of pathologies of the long biceps tendon (LHB) have been established. However, tenotomy, as well as established tenodesis techniques, has disadvantages, such as cosmetic deformities, functional impairments and residual shoulder pain. This study presents the first clinical and structural results of ... Read more >>

J Clin Med (Journal of clinical medicine)
[2021, 10(3):]

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Early functional treatment or trivialization? - current treatment strategies in lateral ligament injuries of the ankle.

Daniel Popp, Johannes Weber, Maximilian Kerschbaum, Andreas Schicho, Florian Baumann, Franz Hilber, Werner Krutsch, Volker Alt, Christian Pfeifer,

<b>Introduction:</b> Ankle injuries are common in daily orthopaedic trauma practice, with a high incidence of lateral ligament complex (lat-lig-com) injuries of the ankle joint (AJ). Primarily, these lat-lig-com injuries heal sufficiently, although there is a risk of developing chronic ankle instability. However, there is a lack of knowledge about the ... Read more >>

Eur J Sport Sci (European journal of sport science)
[2021, :1-8]

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Clinical Value of CT for Differentiation between Ascites and Hemorrhage: An Experimental In-Vitro Study.

Maximilian Kerschbaum, Leonhard Andreas Schurr, Moritz Riedl, Agnes Mayr, Isabella Weiß, Lisa Klute, Daniel Popp, Christian Pfeifer, Antonio Ernstberger, Volker Alt, Lena Marie Dendl,

<h4>Background</h4>Abdominal trauma, leading to intra-abdominal bleeding, is a life-threatening condition that might need emergency surgical intervention. Sonography and Computed Tomography (CT) are most commonly used to detect free intra-abdominal fluid. This study investigates the accuracy of CT to distinguish between ascites and intra-abdominal hemorrhage.<h4>Methods</h4>Ascites were collected during a clinical routine. ... Read more >>

J Clin Med (Journal of clinical medicine)
[2020, 10(1):]

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Patient-reported outcome after patient-specific unicondylar knee arthroplasty for unicompartmental knee osteoarthritis.

Viola Freigang, Markus Rupp, Christian Pfeifer, Michael Worlicek, Stefan Radke, Stephan Deckelmann, Volker Alt, Florian Baumann,

<h4>Background</h4>Unicondylar knee arthroplasty was introduced in the late 1960s and remains a topic of controversial discussion. Patient-specific instruments and patient-specific implants are not yet the standard of care. The question remains whether this time-consuming and costly technique can be beneficial for the patient. The aim of this study was to ... Read more >>

BMC Musculoskelet Disord (BMC musculoskeletal disorders)
[2020, 21(1):773]

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An anatomical study of transpedicular vs. extrapedicular approach for kyphoplasty and vertebroplasty in the thoracic spine.

Rupert Schupfner, Katarina Koniarikova, Christian Pfeifer, Peter Grechenig, Bore Bakota, Mario Staresinic, Michael Alexander Kerner, Michael Müller,

<h4>Introduction</h4>Percutaneous vertebral augmentation is a common therapeutic approach for osteoporotic or osteolytic vertebral fractures. Due to the variable pedicle anatomy two different approaches, the transpedicular and the extrapedicular approach have been established. In particular, in the middle and upper thoracic spine, percutaneous procedures are challenging because of difficult visualisation of anatomical ... Read more >>

Injury (Injury)
[2020, :]

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Galleria mellonella as an alternative in vivo model to study bacterial biofilms on stainless steel and titanium implants

Gopala K Mannala, Markus Rupp, Francisca Alagboso, Maximilian Kerschbaum, Christian Pfeifer, Ursula Sommer, Marian Kampschulte, Eugen Domann, Volker Alt,

The purpose of this study was to establish an infection model of Galleria mellonella larvae as an alternative in vivo model for biofilm-associated infections on stainless steel and titanium implants. First, the model was established with sterile implants to evaluate biocompatibility. Titanium or stainless steel implants were implanted without adverse ... Read more >>

ALTEX (ALTEX)
[2021, 38(2):245-252]

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Rebuilding Tendons: A Concise Review on the Potential of Dermal Fibroblasts.

Jin Chu, Ming Lu, Christian G Pfeifer, Volker Alt, Denitsa Docheva,

Tendons are vital to joint movement by connecting muscles to bones. Along with an increasing incidence of tendon injuries, tendon disorders can burden the quality of life of patients or the career of athletes. Current treatments involve surgical reconstruction and conservative therapy. Especially in the elderly population, tendon recovery requires ... Read more >>

Cells (Cells)
[2020, 9(9):]

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Physioxia Expanded Bone Marrow Derived Mesenchymal Stem Cells Have Improved Cartilage Repair in an Early Osteoarthritic Focal Defect Model.

Girish Pattappa, Jonas Krueckel, Ruth Schewior, Dustin Franke, Alexander Mench, Matthias Koch, Johannes Weber, Siegmund Lang, Christian G Pfeifer, Brian Johnstone, Denitsa Docheva, Volker Alt, Peter Angele, Johannes Zellner,

Focal early osteoarthritis (OA) or degenerative lesions account for 60% of treated cartilage defects each year. The current cell-based regenerative treatments have an increased failure rate for treating degenerative lesions compared to traumatic defects. Mesenchymal stem cells (MSCs) are an alternative cell source for treating early OA defects, due to ... Read more >>

Biology (Basel) (Biology)
[2020, 9(8):]

Cited: 4 times

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Can necrotic bone be objectively identified in chronic fracture related infections? - First clinical experience with an intraoperative fluorescence imaging technique.

Markus Rupp, Leopold Henssler, Christoph Brochhausen, Jozef Zustin, Sebastian Geis, Christian Pfeifer, Volker Alt, Maximilian Kerschbaum,

<h4>Introduction</h4>Adequate debridement of necrotic bone is of paramount importance for eradication of infection in chronic osteomyelitis. Currently, no tools are available to detect the exact amount of necrotic bone in order to optimize surgical resection. The aim of the present study was to evaluate the feasibility of an intraoperative illumination ... Read more >>

Injury (Injury)
[2020, 51(11):2541-2545]

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