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Author Dieter Christian Wirtz

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APP-guided assessment of acetabular defects in hip revision arthroplasty: a structured approach to a complex situation.

Max Jaenisch, Dieter Christian Wirtz, Hendrik Kohlhof, Martin Gathen, Koroush Kabir, Sebastian Koob, Tom Rainer Jansen,

<h4>Introduction</h4>Acetabular defect recognition and classification remains a challenging field of practice for orthopedic surgeons. Recently, the Acetabular Defect Classification (ADC) has been introduced to provide a reliable, reproducible and intuitive classification system. In order to improve ease of use and efficiency of the ADC, a browser-based application has been created. ... Read more >>

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

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Femoral defects in revision hip arthroplasty: a therapy-oriented classification.

Max Jaenisch, Hendrik Kohlhof, Adnan Kasapovic, Martin Gathen, Thomas Martin Randau, Koroush Kabir, Philip Peter Roessler, Geert Pagenstert, Dieter Christian Wirtz,

<h4>Introduction</h4>The complex field of femoral defects in revision hip arthroplasty displays a lack of standardized, intuitive pre- and intraoperative assessment. To address this issue, the femoral defect classification (FDC) is introduced to offer a reliable, reproducible and an intuitive classification system with a clear therapeutic guideline.<h4>Materials and methods</h4>The FDC is ... Read more >>

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

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Clinical and patient reported outcome in total ankle replacement compared to ankle fusion in end-stage haemophilic arthropathy.

Haider Mussawy, Michael Kehrer, André Strahl, Tim Rolvien, Jan Hubert, Frank Timo Beil, Dieter Christian Wirtz, Johannes Oldenburg, Katharina Holstein, Andreas Christian Strauss,

<h4>Background</h4>Ankle arthropathy is a frequent complication of haemophilia, reducing the patients' quality of life. Despite intensive conservative therapy, end-stage arthropathy requires surgical treatment, either by ankle fusion (AF) or total ankle replacement (TAR).<h4>Methods</h4>Eleven consecutive AFs were performed in nine patients and 11 TARs were implemented in 10 patients. Outcomes were ... Read more >>

Haemophilia (Haemophilia : the official journal of the World Federation of Hemophilia)
[2021, 27(6):e739-e746]

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[Development of orthopaedic associations].

Dieter Christian Wirtz,

Orthopade (Der Orthopade)
[2021, 50(10):847-849]

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Practicability of a Virtual Consultation to Evaluate the Shoulder Joint.

Martin Gathen, Davide Cucchi, Tom Jansen, Hans Goost, Frank Alexander Schildberg, Christof Burger, Dieter Christian Wirtz, Koroush Kabir, Kristian Welle,

<h4>Objective</h4>In the course of the corona pandemic, resource conservation and the protection of further infections have made it necessary to break new ground in the organisation of orthopaedic and trauma surgery consultations. One solution is consistent digitisation and the offer of video consultation hours. In this study, non-contact examination of ... Read more >>

Z Orthop Unfall (Zeitschrift fur Orthopadie und Unfallchirurgie)
[2021, :]

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[Quality criteria in arthroplasty].

Max Jaenisch, Karl Dieter Heller, Dieter Christian Wirtz,

The discipline of orthopedics and trauma surgery strives for constant improvement of the quality of results in arthroplasty; however, in order to enable targeted alterations to the establish standard operating procedures, dedicated documentation of the current quality of results is necessary. This can be achieved by so-called external quality assurance, ... Read more >>

Chirurg (Der Chirurg; Zeitschrift fur alle Gebiete der operativen Medizen)
[2021, 92(10):873-880]

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Spine Examination during COVID-19 Pandemic via Video Consultation.

Tom Jansen, Martin Gathen, Amadeo Touet, Hans Goost, Dieter Christian Wirtz, Christof Burger, Robert Pflugmacher, Kristian Welle, Koroush Kabir,

<h4>Introduction</h4>During the current COVID-19 pandemic video consultations are increasingly common in order to minimize the risk of infection for staff and patients. The aim of this study was to evaluate the feasibility of a spine examination via video.<h4>Methods</h4>A total of 43 patients were recruited. Each participant underwent a video-based (VB) ... Read more >>

Z Orthop Unfall (Zeitschrift fur Orthopadie und Unfallchirurgie)
[2021, 159(2):193-201]

Cited: 2 times

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A Feasibility Pilot Study on the Use of Telemedicine for the Examination of the Knee Joint.

Sebastian Scheidt, Michael Kehrer, Max Jaenisch, Hans Goost, Dieter Christian Wirtz, Christof Burger, Koroush Kabir, Kristian Welle, Matthias D Wimmer,

<h4>Background</h4>In times of a pandemic threat, such as COVID-19, and the need for reduced direct doctor-patient contact, internet-based telemedicine has attracted more and more attention as a surrogate service. Suspending the diagnosis and treatment of non-virus related diseases for longer periods of time is not a viable option since this ... Read more >>

Z Orthop Unfall (Zeitschrift fur Orthopadie und Unfallchirurgie)
[2020, :]

Cited: 2 times

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Examining the Hand in the Video Consultation.

Kristian Welle, Stefan Täger, Roslind Karolina Hackenberg, Alexander Markowetz, Frank Alexander Schildberg, Christof Burger, Dieter Christian Wirtz, Tom Jansen, Koroush Kabir,

<h4>Background</h4>Video consultations could support patient care in hand surgery during social distancing in the COVID-19 era. According to the literature, images of hand and fingers can support telediagnosis in hand emergencies. We present this feasibility study on online video consultation in hand surgery.<h4>Methods</h4>A structured examination was designed to query the ... Read more >>

Z Orthop Unfall (Zeitschrift fur Orthopadie und Unfallchirurgie)
[2021, 159(2):202-208]

Cited: 2 times

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Evaluation of the Feasibility of a Telemedical Examination of the Hip and Pelvis - Early Lessons from the COVID-19 Pandemic.

Max Jaenisch, Hendrik Kohlhof, Amadeo Touet, Michael Kehrer, Davide Cucchi, Christof Burger, Dieter Christian Wirtz, Kristian Welle, Koroush Kabir,

<h4>Introduction</h4>Due to the current COVID-19 pandemic, the German Health Ministry has issued restrictions applying to the field of orthopaedics and trauma surgery. Besides postponement of elective surgeries, outpatient consultations have been drastically reduced. Parallel to these developments, an increase in telemedical consultations has reflected efforts to provide sufficient patient care. ... Read more >>

Z Orthop Unfall (Zeitschrift fur Orthopadie und Unfallchirurgie)
[2021, 159(1):39-46]

Cited: 4 times

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Cartilage Regeneration with a Cell-free Collagen Type 1 Matrix (Part 2 - Experimental Aspects).

Philip Peter Roessler, Ralf Mueller-Rath, Dieter Christian Wirtz, Frank Alexander Schildberg,

Cartilage regeneration with cell-free matrices has developed from matrix-associated autologous cartilage cell transplantation (MACT) over ten years ago. Adjustments to the legal framework and higher hurdles for cell therapy have led to the procedures being established as an independent alternative to MACT. These procedures, which can be classified as matrix-induced ... Read more >>

Z Orthop Unfall (Zeitschrift fur Orthopadie und Unfallchirurgie)
[2020, :]

Cited: 0 times

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The Impact of Lead Aprons on Posture of Orthopaedic Surgeons.

Sebastian Scheidt, Robert Ossendorf, Christian Prangenberg, Dieter Christian Wirtz, Christof Burger, Koroush Kabir, Kristian Welle,

<h4>Background</h4>Surgeons working in orthopedics and trauma surgery are frequently exposed to repetitive actions and non-ergonomic positions in their operative activities with the regular use of lead aprons. Musculoskeletal complaints of the neck and back among surgeons are reported in the literature as up to 80%. In this study, the effects ... Read more >>

Z Orthop Unfall (Zeitschrift fur Orthopadie und Unfallchirurgie)
[2020, :]

Cited: 1 time

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Cartilage Regeneration with Cell-free Type 1 Collagen Matrix - Past, Present and Future (Part 1 - Clinical Aspects).

Philip Peter Roessler, Turgay Efe, Dieter Christian Wirtz, Frank Alexander Schildberg,

Cartilage regeneration with cell-free matrices has developed from matrix-associated autologous cartilage cell transplantation (MACT) over ten years ago. Adjustments to the legal framework and higher hurdles for cell therapy have led to the procedures being established as an independent alternative to MACT. These procedures, which can be classified as matrix-induced ... Read more >>

Z Orthop Unfall (Zeitschrift fur Orthopadie und Unfallchirurgie)
[2020, :]

Cited: 0 times

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Basic Clinical Examination of the Foot and Ankle.

Michael Kehrer, Hendrik Kohlhof, Desiree Schwetje, Adnan Kasapovic, Andreas Kehrer, Dieter Christian Wirtz, Max J Friedrich,

Successful treatment of foot and ankle diseases requires an accurate diagnosis. In addition to differentiated history taking, clinical examination is the most important component in the diagnosis of foot and ankle diseases. The present video explains the common provocation tests and functional tests that are used in the basic clinical ... Read more >>

Z Orthop Unfall (Zeitschrift fur Orthopadie und Unfallchirurgie)
[2020, 158(6):657-660]

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Acetabular defects in revision hip arthroplasty: a therapy-oriented classification.

Dieter Christian Wirtz, Max Jaenisch, Thiemo Antonius Osterhaus, Martin Gathen, Matthias Wimmer, Thomas Martin Randau, Frank Alexander Schildberg, Philip Peter Rössler,

<h4>Introduction</h4>The treatment of severe acetabular bone loss remains a difficult challenge. No classification system is available that combines intuitive use, structured design and offers a therapeutic recommendation according to the current literature and modern state of the art treatment options. The goal of this study is to introduce an intuitive, ... Read more >>

Arch Orthop Trauma Surg (Archives of orthopaedic and trauma surgery)
[2020, 140(6):815-825]

Cited: 3 times

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A Systematic Review on the Value of Infrared Thermography in the Early Detection of Periprosthetic Joint Infections.

Sebastian Scheidt, Julian Rüwald, Frank Alexander Schildberg, Anne Katrin Mahlein, Axel Seuser, Dieter Christian Wirtz, Cornelius Jacobs,

<h4>Background</h4>Variations in the temperature of body and skin are symptoms of many pathological changes. Although joint replacement surgery of hip and knee has been very successful in recent decades, periprosthetic infection is a growing problem and the number one reason for revision. While many studies have investigated changes in blood ... Read more >>

Z Orthop Unfall (Zeitschrift fur Orthopadie und Unfallchirurgie)
[2020, 158(4):397-405]

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Preoperative Anaemia in Primary Hip and Knee Arthroplasty.

Patrick Meybohm, Hendrik Kohlhof, Dieter Christian Wirtz, Ingo Marzi, Christoph Füllenbach, Suma Choorapoikayil, Maria Wittmann, Ursula Marschall, Josef Thoma, Klaus Schwendner, Patrick Stark, Ansgar Raadts, Jens Friedrich, Henry Weigt, Patrick Friederich, Josef Huber, Martin Gutjahr, Elke Schmitt, Kai Zacharowski,

<h4>Introduction</h4>Approximately one in three patients has untreated preoperative anaemia, which in turn is associated with an increased need for transfusion of allogenic red blood cell concentrates (RBC) and complications in the context of a surgical intervention. Here, the prevalence of preoperative and postoperative anaemia as well as their effects on ... Read more >>

Z Orthop Unfall (Zeitschrift fur Orthopadie und Unfallchirurgie)
[2020, 158(2):194-200]

Cited: 2 times

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Shoulder Stiffness - How to Treat?

Davide Cucchi, Sebastian Gottfried Walter, Dieter Christian Wirtz, Max Julian Friedrich,

Shoulder stiffness is a condition of restricted glenohumeral range of motion, which can arise spontaneously or as consequence of a known cause, including surgical procedures on the shoulder. Several approaches to shoulder stiffness have been proposed and high-level evidence is available to analyze and discuss their results. The aim of ... Read more >>

Z Orthop Unfall (Zeitschrift fur Orthopadie und Unfallchirurgie)
[2019, 157(6):668-675]

Cited: 1 time

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Comparison of the Subjective Elbow Value with the DASH, MEPS und Morrey Score after Olecranon Fractures.

Martin Gathen, Milena Maria Ploeger, Christian Peez, Leonie Weinhold, Matthias Schmid, Dieter Christian Wirtz, Christof Burger, Koroush Kabir,

<h4>Background</h4>Olecranon fractures are common injuries that can occur in patients of any age. To assess the postoperative outcome, multiple scoring systems like the DASH, MEPS und Morrey Score have been described. The goal of this paper is to compare the subjective elbow value (SEV) to these commonly used scoring systems. ... Read more >>

Z Orthop Unfall (Zeitschrift fur Orthopadie und Unfallchirurgie)
[2020, 158(2):208-213]

Cited: 1 time

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Force plates may be used for dynamic analyses of endoprostheses explantation procedures.

Hendrik Kohlhof, Sebastian Köhring, Dieter Christian Wirtz, Hartmut Witte,

The number of hip and knee arthroplasty replacement surgeries is increasing steadily. In combination with demographic aging and the number of periprosthetic complications, this development has lead to the phenomenon where the need for revision surgery is rising. The problem is, that, while implantation procedures of hip arthroplasties are more ... Read more >>

Biomed Tech (Berl) (Biomedizinische Technik. Biomedical engineering)
[2019, 64(2):243-245]

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Improve hip fracture outcome in the elderly patient (iHOPE): a study protocol for a pragmatic, multicentre randomised controlled trial to test the efficacy of spinal versus general anaesthesia.

Ana Kowark, Christian Adam, Jörg Ahrens, Malek Bajbouj, Cornelius Bollheimer, Matthias Borowski, Richard Dodel, Michael Dolch, Thomas Hachenberg, Dietrich Henzler, Frank Hildebrand, Ralf-Dieter Hilgers, Andreas Hoeft, Susanne Isfort, Peter Kienbaum, Mathias Knobe, Pascal Knuefermann, Peter Kranke, Rita Laufenberg-Feldmann, Carla Nau, Mark D Neuman, Cynthia Olotu, Christopher Rex, Rolf Rossaint, Robert D Sanders, Rene Schmidt, Frank Schneider, Hartmut Siebert, Max Skorning, Claudia Spies, Oliver Vicent, Frank Wappler, Dieter Christian Wirtz, Maria Wittmann, Kai Zacharowski, Alexander Zarbock, Mark Coburn, ,

<h4>Introduction</h4>Hip fracture surgery is associated with high in-hospital and 30-day mortality rates and serious adverse patient outcomes. Evidence from randomised controlled trials regarding effectiveness of spinal versus general anaesthesia on patient-centred outcomes after hip fracture surgery is sparse.<h4>Methods and analysis</h4>The iHOPE study is a pragmatic national, multicentre, randomised controlled, open-label ... Read more >>

BMJ Open (BMJ open)
[2018, 8(10):e023609]

Cited: 13 times

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Systematic Reviews and Meta-analyses.

Sebastian Scheidt, Patrick Vavken, Cornelius Jacobs, Sebastian Koob, Davide Cucchi, Eva Kaup, Dieter Christian Wirtz, Matthias D Wimmer,

The rising number of medical publications makes it difficult to keep up-to-date on scientific knowledge. In recent years, reviews in the form of narrative or systematic publications and meta-analyses have increased. These can only be interpreted and evaluated if the reader understands the techniques used. This review article describes the ... Read more >>

Z Orthop Unfall (Zeitschrift fur Orthopadie und Unfallchirurgie)
[2019, 157(4):392-399]

Cited: 0 times

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Bone Metastases - Pathophysiology, Diagnostic Testing and Therapy (Part 2).

Sebastian Koob, Michael Kehrer, Andreas Strauss, Cornelius Jacobs, Dieter Christian Wirtz, Jan Schmolders,

The second part of this review deals with the several options for the surgical therapy of bone metastases according to their anatomical site and the patient's individual prognosis. Although metastases to the bone - with few exceptions - are normally given palliative therapy, patients nowadays reach survival times of several ... Read more >>

Z Orthop Unfall (Zeitschrift fur Orthopadie und Unfallchirurgie)
[2019, 157(4):401-410]

Cited: 0 times

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Postoperative Medical Complications and Intermediate Care Unit/Intensive Care Unit Admission in Joint Replacement Surgery: A Prospective Risk Model.

Anne Klausing, Markus Martini, Matthias Dominik Wimmer, Sascha Gravius, Dieter Christian Wirtz, Thomas Martin Randau,

BACKGROUND:Postoperative complications are the main consumers of technical, medical, and human resources. Especially in the field of elective joint replacement surgery, a specialized, easy-to-obtain, and cost-efficient preoperative stratification and risk-estimation model is missing. METHODS:With preoperatively surveyed patient parameters, we identified the most relevant parameters to predict postoperative medical complications. We ... Read more >>

J Arthroplasty (The Journal of arthroplasty)
[2019, 34(4):717-722]

Cited: 1 time

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The Kellgren and Lawrence Score as a helpful tool for the indication for total disc replacement at the cervical spine.

Charlotte Struwe, Rahel Bornemann, Frank Alexander Schildberg, Dieter Christian Wirtz, Robert Pflugmacher, Yorck Rommelspacher,

<h4>Background</h4>Several studies showed encouraging results after total disc replacement (TDR) in patients with cervical-brachial syndrome (CBS).<h4>Objective</h4>The aim of this study was to supplement the existing documentation of results after total disc replacement and to underline the importance of the correct indication.<h4>Methods</h4>The clinical and radiological outcome of 34 patients was evaluated ... Read more >>

Technol Health Care (Technology and health care : official journal of the European Society for Engineering and Medicine)
[2019, 27(3):317-326]

Cited: 0 times

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