Full Text Journal Articles by
Author Hendrik Kohlhof

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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, :]

Cited: 0 times

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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, :]

Cited: 0 times

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Synovial Complement Factors in Patients with Periprosthetic Joint Infection after Undergoing Revision Arthroplasty of the Hip or Knee Joint.

Frank Sebastian Fröschen, Sophia Schell, Matthias Dominik Wimmer, Gunnar Thorben Rembert Hischebeth, Hendrik Kohlhof, Sascha Gravius, Thomas Martin Randau,

The role and diagnostic value of the synovial complement system in patients with low-grade periprosthetic joint infection (PJI) are unclear. We sought to evaluate, for the first time, the usefulness of synovial complement factors in these patients by measuring the individual synovial fluid levels of complement factors (C1q, C3b/iC3b, C4b, ... Read more >>

Diagnostics (Basel) (Diagnostics (Basel, Switzerland))
[2021, 11(3):]

Cited: 0 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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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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High-Dimensional Analysis of Immune Cell Composition Predicts Periprosthetic Joint Infections and Dissects Its Pathophysiology.

Maximilian F Korn, Richard R Stein, Andreas Dolf, Farhad Shakeri, Andreas Buness, Cäcilia Hilgers, Werner Masson, Sascha Gravius, Hendrik Kohlhof, Christof Burger, Dieter C Wirtz, Thomas M Randau, Frank A Schildberg,

Accurate diagnosis of periprosthetic joint infections (PJI) is one of the most widely researched areas in modern orthopedic endoprosthesis. However, our understanding of the immunological basis of this severe complication is still limited. In this study, we developed a flow cytometric approach to precisely characterize the immune cell composition in ... Read more >>

Biomedicines (Biomedicines)
[2020, 8(9):]

Cited: 1 time

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Difficult-to-treat pathogens significantly reduce infection resolution in periprosthetic joint infections.

Matthias D Wimmer, Gunnar T R Hischebeth, Thomas M Randau, Martin Gathen, Frank A Schildberg, Frank S Fröschen, Hendrik Kohlhof, Sascha Gravius,

Periprosthetic joint infection (PJI) is a feared complication after arthroplasty. Our hypothesis was that PJI caused by difficult-to-treat (DTT) pathogens has a worse outcome compared with non-DTT PJI. Routine clinical data on 77 consecutive patients with confirmed PJI treated with 2-stage exchange arthroplasty were placed in DTT and non-DTT PJI ... Read more >>

Diagn Microbiol Infect Dis (Diagnostic microbiology and infectious disease)
[2020, 98(2):115114]

Cited: 4 times

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The Performance of a Dithiothreitol-Based Diagnostic System in Diagnosing Periprosthetic Joint Infection Compared to Sonication Fluid Cultures and Tissue Biopsies.

Thomas Martin Randau, Ernst Molitor, Frank Sebastian Fröschen, Achim Hörauf, Hendrik Kohlhof, Sebastian Scheidt, Sascha Gravius, Gunnar T Hischebeth,

<h4>Purpose</h4>The aim of this study was to evaluate the performance of a commercially available dithiothreitol (DTT) kit for routine use in diagnosing periprosthetic joint infections (PJIs) in comparison to conventional microbiological tissue specimens and sonication procedures in a maximal care hospital.<h4>Methods</h4>We applied the DTT system in 40 consecutive cases of ... Read more >>

Z Orthop Unfall (Zeitschrift fur Orthopadie und Unfallchirurgie)
[2021, 159(4):447-453]

Cited: 1 time

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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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The geriatric patient: special aspects of peri-operative management.

Dieter Wirtz, Hendrik Kohlhof,

This article offers a German perspective on orthopaedic management of geriatric populations in higher-income countries.Specific orthopaedic procedures necessitate a more intensive level of care in older adult patients, especially with co-morbidities, than in younger patients.During the pre-, peri- and post-operative periods, several aspects such as patient blood management principles improve ... Read more >>

EFORT Open Rev (EFORT open reviews)
[2019, 4(6):240-247]

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]

Cited: 0 times

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Liberal transfusion strategy to prevent mortality and anaemia-associated, ischaemic events in elderly non-cardiac surgical patients - the study design of the LIBERAL-Trial.

Patrick Meybohm, Simone Lindau, Sascha Treskatsch, Roland Francis, Claudia Spies, Markus Velten, Maria Wittmann, Erdem Gueresir, Christian Stoppe, Ana Kowark, Mark Coburn, Sixten Selleng, Marcel Baschin, Gregor Jenichen, Melanie Meersch, Thomas Ermert, Alexander Zarbock, Peter Kranke, Markus Kredel, Antonia Helf, Rita Laufenberg-Feldmann, Marion Ferner, Eva Wittenmeier, Karl-Heinz Gürtler, Peter Kienbaum, Marcel Gama de Abreu, Michael Sander, Michael Bauer, Timo Seyfried, Matthias Gruenewald, Suma Choorapoikayil, Markus M Mueller, Erhard Seifried, Oana Brosteanu, Holger Bogatsch, Dirk Hasenclever, Kai Zacharowski, ,

<h4>Background</h4>Perioperative anaemia leads to impaired oxygen supply with a risk of vital organ ischaemia. In healthy and fit individuals, anaemia can be compensated by several mechanisms. Elderly patients, however, have less compensatory mechanisms because of multiple co-morbidities and age-related decline of functional reserves. The purpose of the study is to ... Read more >>

Trials (Trials)
[2019, 20(1):101]

Cited: 3 times

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[Obesity in Revision Total Knee Arthroplasty - a Systematic Review and Legal Assessment].

Milena M Ploeger, Norbert H Müller, Dieter Christian Wirtz, Hendrik Kohlhof,

BACKGROUND:In recent years, the incidence of overweight and obesity has increased in the German population. Thus the number of obese patients treated with primary total joint arthroplasty has also increased. It is therefore predicted that the number of obese patients undergoing revision total joint arthroplasty will also increase. Nevertheless almost ... Read more >>

Z Orthop Unfall (Zeitschrift fur Orthopadie und Unfallchirurgie)
[2018, 156(4):436-442]

Cited: 0 times

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Activity of ceftobiprole against Staphylococcus spec. isolates derived from foreign body associated infections.

Gunnar T R Hischebeth, Sascha Gravius, Ernst Molitor, Hendrik Kohlhof, Achim Hoerauf, Caecilia Hilgers, Thomas M Randau,

Antibiotic therapy is essential in foreign body associated infections. The treatment regime should aim at high tissue concentrations, high bioavailability, high biofilm penetration and good tolerance. We investigated whether the new cephalosporin ceftobiprole is active against clinical isolates from musculoskeletal foreign body associated infections. One hundred ninety-six staphylococci isolates (coagulase ... Read more >>

Diagn Microbiol Infect Dis (Diagnostic microbiology and infectious disease)
[2018, 91(2):175-178]

Cited: 2 times

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Indication Criteria for Total Knee Arthroplasty in Patients with Osteoarthritis - A Multi-perspective Consensus Study.

Jochen Schmitt, Toni Lange, Klaus-Peter Günther, Christian Kopkow, Elisabeth Rataj, Christian Apfelbacher, Martin Aringer, Eckhardt Böhle, Hartmut Bork, Karsten Dreinhöfer, Niklaus Friederich, Karl-Heinz Frosch, Sascha Gravius, Erika Gromnica-Ihle, Karl-Dieter Heller, Stephan Kirschner, Bernd Kladny, Hendrik Kohlhof, Michael Kremer, Nicolai Leuchten, Maike Lippmann, Jürgen Malzahn, Heiko Meyer, Rainer Sabatowski, Hanns-Peter Scharf, Johannes Stoeve, Richard Wagner, Jörg Lützner,

<b>Background and Objectives</b> Knee osteoarthritis (OA) is a significant public health burden. Rates of total knee arthroplasty (TKA) in OA vary substantially between geographical regions, most likely due to the lack of standardised indication criteria. We set out to define indication criteria for the German healthcare system for TKA in ... Read more >>

Z Orthop Unfall (Zeitschrift fur Orthopadie und Unfallchirurgie)
[2017, 155(5):539-548]

Cited: 15 times

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Factors influencing the success of anterior cruciate ligament repair with dynamic intraligamentary stabilisation.

Anna M Krismer, Lampros Gousopoulos, Sandro Kohl, Atesch Ateschrang, Hendrik Kohlhof, Sufian S Ahmad,

<h4>Purpose</h4>Primary repair of the anterior cruciate ligament (ACL) has regained interest of clinicians with recent development of novel repair techniques. Dynamic intraligamentary stabilisation was introduced in an attempt to promote healing by shielding cyclic loads acting upon the ACL during the healing phase. The aim of this study was to ... Read more >>

Knee Surg Sports Traumatol Arthrosc (Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA)
[2017, 25(12):3923-3928]

Cited: 17 times

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Patient Blood Management is Associated With a Substantial Reduction of Red Blood Cell Utilization and Safe for Patient's Outcome: A Prospective, Multicenter Cohort Study With a Noninferiority Design.

Patrick Meybohm, Eva Herrmann, Andrea U Steinbicker, Maria Wittmann, Matthias Gruenewald, Dania Fischer, Georg Baumgarten, Jochen Renner, Hugo K Van Aken, Christian F Weber, Markus M Mueller, Christof Geisen, Julia Rey, Dimitra Bon, Gudrun Hintereder, Suma Choorapoikayil, Johannes Oldenburg, Christian Brockmann, Raoul G Geissler, Erhard Seifried, Kai Zacharowski, ,

<h4>Objective</h4>To determine whether the implementation of patient blood management (PBM) is effective to decrease the use of red blood cell without impairment of patient's safety.<h4>Background</h4>The World Health Organization encouraged all member states to implement PBM programs employing multiple combined strategies to increase and preserve autologous erythrocyte volume to minimize red ... Read more >>

Ann Surg (Annals of surgery)
[2016, 264(2):203-211]

Cited: 51 times

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Can 3D ultrasound identify trochlea dysplasia in newborns? Evaluation and applicability of a technique.

Hendrik Kohlhof, Christoph Heidt, Alexandrine Bähler, Sandro Kohl, Sascha Gravius, Max J Friedrich, Kai Ziebarth, Enno Stranzinger,

Femoro-patellar dysplasia is considered as a significant risk factor of patellar instability. Different studies suggest that the shape of the trochlea is already developed in early childhood. Therefore early identification of a dysplastic configuration might be relevant information for the treating physician. An easy applicable routine screening of the trochlea ... Read more >>

Eur J Radiol (European journal of radiology)
[2015, 84(6):1159-1164]

Cited: 3 times

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Dynamic intraligamentary stabilization and primary repair: a new concept for the treatment of knee dislocation.

Sandro Kohl, Anna Stock, Sufian S Ahmad, Matthias Zumstein, Marius Keel, Aristomenis Exadaktylos, Hendrik Kohlhof, Stefan Eggli, Dimitrios Stergios Evangelopoulos,

<h4>Background</h4>Traumatic knee dislocation represents a rare but devastating injury. Several controversies persist regarding type of treatment, surgical timing, graft selection, repair versus reconstruction of the medial and lateral structures, surgical techniques and postoperative rehabilitation. A new technique for primary ACL stabilization, dynamic intaligamentary stabilization (DIS) was developed at the authors' ... Read more >>

Injury (Injury)
[2015, 46(4):724-728]

Cited: 13 times

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Acetabular defect reconstruction in revision hip arthroplasty with a modular revision system and biological defect augmentation.

Jan Schmolders, Max J Friedrich, Robert D Michel, Thomas M Randau, Matthias D Wimmer, Andreas C Strauss, Hendrik Kohlhof, Dieter C Wirtz, Sascha Gravius,

<h4>Purpose</h4>Revision of failed total hip arthroplasty with severe acetabular bone loss represents a rare but challenging problem. Anatomic reconstruction with biological defect augmentation as solid bone transplants or cancellous bone restores bone stock while providing good component stability. The objective of this study was to present short- to mid-term results ... Read more >>

Int Orthop (International orthopaedics)
[2015, 39(4):623-630]

Cited: 10 times

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Management of severe periacetabular bone loss combined with pelvic discontinuity in revision hip arthroplasty.

Max J Friedrich, Jan Schmolders, Robert D Michel, Thomas M Randau, Matthias D Wimmer, Hendrik Kohlhof, Dieter C Wirtz, Sascha Gravius,

<h4>Purpose</h4>Revision of failed total hip arthroplasty with massive acetabular bone loss resulting in pelvic discontinuity represents a rare but challenging problem. The objective of this study was to present short to mid-term results of revision total hip arthroplasty with a custom-made acetabular implant in a consecutive series of patients with ... Read more >>

Int Orthop (International orthopaedics)
[2014, 38(12):2455-2461]

Cited: 16 times

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Evidence of MRSE on a gentamicin and vancomycin impregnated polymethyl-methacrylate (PMMA) bone cement spacer after two-stage exchange arthroplasty due to periprosthetic joint infection of the knee.

Jan Schmolders, Gunnar T R Hischebeth, Max J Friedrich, Thomas M Randau, Matthias D Wimmer, Hendrik Kohlhof, Ernst Molitor, Sascha Gravius,

<h4>Background</h4>Periprosthetic joint infections (PJI) are often treated by two stage exchange with the use of an antibiotic impregnated spacer. Most of the two-stage exchange algorithms recommend the implantation of an antibiotic-impregnated spacer during the first stage for a period of 2-24 weeks before reimplantation of the new prosthesis. For the spacer ... Read more >>

BMC Infect Dis (BMC infectious diseases)
[2014, 14:144]

Cited: 19 times

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Cement-augmented anterior screw fixation of Type II odontoid fractures in elderly patients with osteoporosis.

Hendrik Kohlhof, Ulrich Seidel, Sven Hoppe, Marius J Keel, Lorin M Benneker,

<h4>Background context</h4>Closed reduction and internal fixation by an anterior approach is an established option for operative treatment of displaced Type II odontoid fractures. In elderly patients, however, inadequate screw purchase in osteoporotic bone can result in severe procedure-related complications.<h4>Purpose</h4>To improve the stability of odontoid fracture screw fixation in the elderly ... Read more >>

Spine J (The spine journal : official journal of the North American Spine Society)
[2013, 13(12):1858-1863]

Cited: 9 times

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The cement prosthesis-like spacer: an intermediate halt on the road to healing.

Sufian S Ahmad, Kim Huber, Dimitrios S Evangelopoulos, Barbara Kleer, Hendrik Kohlhof, Michael Schär, Stefan Eggli, Sandro Kohl,

<h4>Background</h4>Periprosthetic infections remain a devastating problem in the field of joint arthroplasty. In the following study, the results of a two-stage treatment protocol for chronic periprosthetic infections using an intraoperatively molded cement prosthesis-like spacer (CPLS) are presented.<h4>Methods</h4>Seventy-five patients with chronically infected knee prosthesis received a two-stage revision procedure with the ... Read more >>

ScientificWorldJournal (TheScientificWorldJournal)
[2013, 2013:763434]

Cited: 0 times

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Mid-term results of transphyseal anterior cruciate ligament reconstruction in children and adolescents.

Sandro Kohl, Chantal Stutz, Sebastian Decker, Kai Ziebarth, Theddy Slongo, Sufian S Ahmad, Hendrik Kohlhof, Stefan Eggli, Matthias Zumstein, Dimitrios S Evangelopoulos,

<h4>Background</h4>Optimal therapy for anterior cruciate ligament (ACL) rupture in the paediatric population still provokes controversy. Although conservative and operative treatments are both applied, operative therapy is slightly favored. Among available surgical techniques are physeal-sparing reconstruction and transphyseal graft fixation. The aim of this study was to present our mid-term results ... Read more >>

Knee (The Knee)
[2014, 21(1):80-85]

Cited: 31 times

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