Numerous research topics are processed in the laboratory. A wide range of services is offered. You can find more information here.

Course: Biomechanics and principles of artificial joints in the elective course system “Movement and the musculoskeletal system”

This course is part of the elective course system “Movement and the musculoskeletal system”:

Description: 

“Broken or loose implants”, “Allergies to implants”. 

These are headlines from the press. What advice can you give your patients? We put you in a position to conduct good patient counseling because you have  learned and understood the function and reasons for failure.

Dates:  

Summer term 2024

26.06.2024 

28.06.2024

10.07.2024

12.07.2024

Place: Research Center of Biomechanics and Implant Technology, Clinic for Orthopedics and Trauma Surgery, Heidelberg University Hospital

Lecturers:

Prof. Dr. sc. hum. Philippe Kretzer

Prof. Dr. med. Marc Thomsen

Dr. Dipl.-Ing. Robert Sonntag

apl. Prof. Dr. rer. nat. Sebastian Wolf

Dr. rer. nat. Solvig Diederichs

Duration: 2 SWS

Contents: 

Indications for an artificial joint

Problems with artificial joints

Basics of mechanics and biomechanics

Implant concepts

Implant materials

Wear and fatigue

Fixation

Implants and allergies

Operative and surgical challenges

Objectives:  

Consolidation and expansion of contents of orthopedics and trauma surgery. Teaching of methodical competences for the evaluation of artificial joints in everyday life.

Addressed are students of the clinical study section. The seminar is to be evaluated as an elective course. Following the course, the contents will be examined in written form. The number of participants is limited to eight (due to the lab course). We therefore recommend that you register early.

...in the technical-constructive field for engineering programs 

(mechanical engineering, medical technology and related fields)

In our medical-technology oriented center, exciting and practical activities are constantly available, which can be worked on as part of an independent project within an internship. These include practical activities on our simulators or analysis procedures as well as constructive tasks in the expansion of our machines or in new developments.

Please understand that we cannot offer internships with a duration of less than four months (desired: at least six months) due to the familiarization period. We are therefore happy to offer you the possibility of combining the internship with a subsequent final thesis, in order to create the opportunity to delve deeper into a topic.

If you are interested, please contact us or send us your current and convincing application documents (curriculum vitae, certificates, evaluations and grade reports) by e-mail or by post:

Contact 

Research Center of Biomechanics and Implant Technology

Linda Stange

Department of Orthopaedic Surgery

Heidelberg University Hospital

Schlierbacher Landstraße 200a

69118 Heidelberg

Germany

Phone: +49 (0) 6221-56 27301

linda.stange@med.uni-heidelberg.de

...for engineering courses (mechanical engineering, medical technology and related fields)

Research Center of Biomechanics and Implant Technology regularly offers the opportunity to write a final or term paper on current issues in arthroplasty. Interested students are given the opportunity to actively participate in ongoing projects. In doing so, they are supervised by staff.

If a project is suitable, we are also happy to offer you the opportunity to combine an internship with a thesis in order to gain a deeper insight into the subject matter.

If you are interested, please contact us or send us your current and convincing application documents (curriculum vitae, certificates, evaluations and grade reports) by e-mail or by post:

Contact 

Research Center of Biomechanics and Implant Technology

Linda Stange

Department of Orthopaedic Surgery

Heidelberg University Hospital

Schlierbacher Landstraße 200a

69118 Heidelberg

Germany

Phone: +49 (0) 6221-56 27301

linda.stange@med.uni-heidelberg.de

...within the framework of academic training

We regularly offer prospective physicians and scientists the opportunity to obtain a PhD or MD. Thematically, preferably work in the biomechanical-experimental field is assigned. The PhD or MD students are directly supervised by the  Research Center of Biomechanics and Implant Technology.

If you are interested, please contact us or send us your current and convincing application documents (curriculum vitae, certificates, evaluations and grade reports) by e-mail or by post:

Contact 

Research Center of Biomechanics and Implant Technology

Linda Stange

Department of Orthopaedic Surgery

Heidelberg University Hospital

Schlierbacher Landstraße 200a

69118 Heidelberg

Germany

Phone: +49 (0) 6221-56 27301

linda.stange@med.uni-heidelberg.de

2022

• Freischmidt H, Armbruster J, Rothhaas C, Titze N, Guehring T, Nurjadi D, Kretzer JP, Schmidmaier G, Grützner PA, Helbig L. Efficacy of an Antibiotic Loaded Ceramic-Based Bone Graft Substitute for the Treatment of Infected Non-Unions. Biomedicines. 2022 Oct 8;10(10):2513. 
• Lunz A, Knappe K, Omlor GW, Schonhoff M, Renkawitz T, Jaeger S. Mechanical strength of antibiotic-loaded PMMA spacers in two-stage revision surgery. BMC Musculoskelet Disord. 2022 Oct 29;23(1):945. 
• Knappe K, Lunz A, Bülhoff M, Schonhoff M, Renkawitz T, Kretzer JP, Jaeger S. Pulsatile lavage systems and their potential to penetrate soft tissue. Eur J Trauma Emerg Surg. 2022 Sep 13. 
• Knappe K, Bitsch RG, Schonhoff M, Walker T, Renkawitz T, Jaeger S. Pulsatile Lavage Systems with High Impact Pressure and High Flow Produce Cleaner Cancellous Bone Prior to Cementation in Cemented Arthroplasty. J Clin Med. 2021 Dec 24;11(1):88.
• Mueller U, Bormann T, Schroeder S, Renkawitz T, Kretzer JP. Taper corrosion in total hip arthroplasty - How to assess and which design features are crucial? J Mech Behav Biomed Mater. 2022 Sep;133:105307. 
• Schroeder S, Schonhoff M, Uhler M, Braun S, Jaeger S, Renkawitz T, Kretzer JP. Does Kinematic Alignment Increase Polyethylene Wear Compared With Mechanically Aligned Components? A Wear Simulation Study. Clin Orthop Relat Res. 2022 Sep 1;480(9):1790-1800.
• Bormann T, Müller U, Gibmeier J, Mai PT, Renkawitz T, Kretzer JP. Insights into Imprinting: How Is the Phenomenon of Tribocorrosion at Head-Neck Taper Interfaces Related to Corrosion, Fretting, and Implant Design Parameters? Clin Orthop Relat Res. 2022 Aug 1;480(8):1585-1600. 
• Günther KP, Tucker K, Kjaersgaard-Andersen P, Lützner J, Kretzer JP, Nelissen R, Lange T, Zagra L. Partieller oder vollständiger Wechsel in der Hüftrevisionsendoprothetik? Partial or full component exchange in hip revision? : The relevance of off- label use and mix & match. Orthopadie (Heidelb). 2022 Aug;51(8):638-645.German. 
• Beckmann NA, Schonhoff M, Bastian JD, Renkawitz T, Jaeger S. Dissociation of liner from cup in THA: does liner damage affect the risk of dissociation? Arch Orthop Trauma Surg. 2022 Jul 5. 
• Schroeder S, Jaeger S, Schwer J, Seitz AM, Hamann I, Werner M, Thorwaechter C, Santos I, Wendler T, Nebel D, Welke B. Accuracy measurement of different marker based motion analysis systems for biomechanical applications: A round robin study. PLoS One. 2022 Jul 11;17(7):e0271349. 
• Bormann T, Nebel L, Müller U, Mai PT, Gibmeier J, Renkawitz T, Kretzer JP. Influence of FeCl3 and H2O2 in corrosion testing of modular taper connections in total hip arthroplasty: An in vitro study. Acta Biomater. 2022 Jun;145:427-435. 
• Bormann T, Nebel L, Müller U, Mai PT, Gibmeier J, Renkawitz T, Kretzer JP. Influence of FeCl3 and H2O2 in corrosion testing of modular taper connections in total hip arthroplasty: An in vitro study. Acta Biomater. 2022 Jun;145:427-435. 
• Morlock MM, Gomez-Barrena E, Wirtz DC, Hart A, Kretzer JP. Explant analysis and implant registries are both needed to further improve patient safety. EFFORT Open Rev. 2022 May 31;7(6):344-348. 
• Tross AK, Bülhoff M, Renkawitz T, Kretzer JP. Stem length in anatomic total shoulder arthroplasty: long stem, short stem, and stemless. Biomechanical considerations, indications, and clinical performance.Obere Extremität. 2022 May: 17 (2)
• Jaeger S, Eissler M, Schwarze M, Schonhoff M, Kretzer JP, Bitsch RG. Does tibial design modification improve implant stability for total knee arthroplasty? An experimental cadaver study. Bone Joint Res. 2022 Apr;11(4):229-238. 
• Mai PT, Bormann T, Müller U, Kretzer JP, Gibmeier J. Effect of surface topography and residual stress on the taper connection stability in total hip arthroplasty. J Mech Behav Biomed Mater. 2022 Apr;128:105119. 
• Uhler M, Braun S, Schroeder S, Renkawitz T, Kretzer JP. Wear investigation based on a novel, anatomic shoulder prosthesis with bearing materials inversion. J Mech Behav Biomed Mater. 2022 Mar;127:105080. 
• Eckert JA, Bitsch RG, Sonntag R, Reiner T, Schwarze M, Jaeger S. The primary stability of the femoral component in cemented single and twin peg Oxford unicompartmental knee arthroplasty under adverse conditions. Bone Joint Res. 2022 Feb;11(2):82-90. 

2021

• Jaeger S, Eissler M, Schwarze M, Schonhoff M, Kretzer JP, Bitsch RG.Cement debonding behaviors of the various tibial components of the ATTUNE knee system and its predecessors: Is a cement-in-cement revision an alternative? Knee. 2021 Dec;33:185-192.
• Eiden S, Bormann T, Kretzer JP, Dieckmann R, Krenn V. [Typing and particle analysis of squeaking hip endoprostheses : First histopathological analysis to examine the squeaking pathogenesis of ceramic-on-ceramic bearings]. Orthopade. 2021 Dec;50(12):1032-1038.
• Knappe K, Stadler C, Innmann MM, Schonhoff M, Gotterbarm T, Renkawitz T, Jaeger S. Does Additive Pressurized Carbon Dioxide Lavage Improve Cement Penetration and Bond Strength in Cemented Arthroplasty? J Clin Med. 2021 Nov 17;10(22):5361.
• Tucker K, Günther KP, Kjaersgaard-Andersen P, Lützner J, Kretzer JP, Nelissen RGHH, Lange T, Zagra L. EFORT recommendations for off-label use, mix & match and mismatch in hip and knee arthroplasty. EFORT Open Rev. 2021 Nov 19;6(11):982-1005.
• Jaenisch M, Kohlhof H, Wirtz DC, Schildberg FA, Beckmann NA, Kretzer JP, Schonhoff M, Jäger S. Primary Stability in Hip Revision Arthroplasty: Comparison of the Stability of Cementless Fixed Augments on a Modular Acetabular Cage System with and without Cranial Straps. J Clin Med. 2021 Sep 4;10(17):4002.
• Eckert JA, Bitsch RG, Schroeder S, Schwarze M, Jaeger S. Pulsatile Lavage Improves Tibial Cement Penetration and Implant Stability in Medial Unicompartmental Arthroplasty: A Cadaveric Study. J Knee Surg. 2021 Sep 10.
• Mueller U, Harzi A, Loescher R, Buelhoff M, Eckert JA, Kretzer JP. Wear and damage in retrieved humeral inlays of reverse total shoulder arthroplasty-where, how much, and why? J Shoulder Elbow Surg. 2021 Aug;30(8):e517-e530.
• Cheng X, Jansson V, Kretzer JP, Bader R, Utzschneider S, Paulus AC. The Expression Levels of Toll-like Receptors after Metallic Particle and Ion Exposition in the Synovium of a Murine Model. J Clin Med. 2021 Aug 7;10(16):3489.
• Rothammer B, Marian M, Neusser K, Bartz M, Böhm T, Krauß S, Schroeder S, Uhler M, Thiele S, Merle B, Kretzer JP, Wartzack S. Amorphous Carbon Coatings for Total Knee Replacements-Part II: Tribological Behavior. Polymers (Basel). 2021 Jun 5;13(11):1880.
• Jaeger S, Eissler M, Schwarze M, Schonhoff M, Kretzer JP, Bitsch RG. Early tibial loosening of the cemented ATTUNE knee arthroplasty - Just a question of design? Knee. 2021 Jun;30:170-175.
• Wonerow T, Uhler M, Nuppnau J, Kretzer JP, Mantwill F. Rheologic Behavior of Bovine Calf Serum. Materials (Basel). 2021 May 13;14(10):2538.
• Mueller U, Bormann T, Schroeder S, Kretzer JP. Taper junctions in modular hip joint replacements: What affects their stability? J Mech Behav Biomed Mater. 2021 Apr;116:104258. 
• Kretzer JP, Van Der Straeten C. Special Issue "Novel Research about Biomechanics and Biomaterials Used in Hip, Knee and Related Joints".  Materials (Basel). 2021 Apr 26;14(9):2222.
• Kretzer JP, Uhler M, Jäger S, Bormann T, Sonntag R, Schonhoff M, Schröder S. [Tribology in hip arthroplasty : Benefits of different materials]. Orthopade. 2021 Apr;50(4):259-269.
• Sonntag R, Al Salehi L, Braun S , Bormann T, Jaeger S, Schroeder S, Heitzmann D.W.W., Philippe Kretzer J.P. Friction in hip bearings under continuous normal walking conditions: Influence of swing phase load and patient weight. Biotribology 2021, 26.
• Rothammer B, Marian M, Rummel F, Schroeder S, Uhler M, Kretzer JP, Tremmel S, Wartzack S. Rheological behavior of an artificial synovial fluid - influence of temperature, shear rate and pressure.  J Mech Behav Biomed Mater. 2021 Mar;115:104278
• Rues S, Schmitter M, Kappel S, Sonntag R, Kretzer JP, Nadorf J. Effect of bone quality and quantity on the primary stability of dental implants in a simulated bicortical placement. Clin Oral Investig. 2021 Mar;25(3):1265-1272.
• Schonhoff M, Bormann T, Knappe K, Reiner T, Stange L, Jaeger S. The Effect of Cement Aging on the Stability of a Cement-in-Cement Revision Construct. Applied Sciences. 2021 Mar;11(6):2814.
• Schwarze M, Schonhoff M, Beckmann NA, Eckert JA, Bitsch RG, Jäger S.  Femoral Cementation in Knee Arthroplasty-A Comparison of Three Cementing Techniques in a Sawbone Model Using the ATTUNE Knee. J Knee Surg. 2021 Feb;34(3):258-266.
• Braun S, Uhler M, Bormann T, Schroeder S, Jaeger S, Sonntag R, Kretzer JP. Backside wear in total knee replacement: A new quantitative measurement method and a comparison of polished cobalt-chromium tibial trays with titanium tibial trays. Wear. Volumes 466–467, 2021 Feb; 203552
• Dapunt U, Prior B, Kretzer JP, Hänsch GM, Gaida MM. The effect of surgical suture material on osteoclast generation and implant-loosening. Int J Med Sci. 2021 Jan 1;18(2):295-303. 

2020

• Seehaus F, Sonntag R, Schwarze M, Jakubowitz E, Sesselmann S, Kretzer JP, Hurschler C. Früherkennung des Risikos der späteren Implantatlockerung mittels der Röntgen Stereophotogrammetrischen Analyse (RSA) [Early assessment of the risk of later implantloosening using Roentgen Sterophotogrammetric Analysis (RSA)]. Orthopade. 2020 Dec;49(12):1042-1048. 
• Mai PT, Bormann T, Sonntag R, Kretzer JP, Gibmeier J. Short-Term Heat Treatment of Ti6Al4V ELI as Implant Material. Materials (Basel). 2020 Nov 4;13(21):4948
• Eckert JA, Mueller U, Walker T, Schwarze M, Jaeger S, Kretzer JP. Bearing Thickness Is Not a Predictive Factor for Damage and Penetration in Oxford Unicompartmental Knee Arthroplasty-A Retrieval Analysis. Materials (Basel). 2020 Oct 15;13(20):E4589. 
• Schroeder S, Braun S, Mueller U, Schroeder M, Sonntag R, Jaeger S, Kretzer JP. Polyethylene wear and metal release of TiNbN-coated knee implants. Wear. 2020 Oct 15(458)
• Dapunt U, Prior B, Oelkrug C, Kretzer JP.  IgY Targeting Bacterial Quorum-Sensing Molecules in Implant-Associated Infections. Molecules. 2020 Sep 3;25(17):4027.
• Lunz A, Sonntag R, Kretzer JP, Jaeger S, Bormann T, Streit MR, Beckmann NA, Lehner B, Omlor GW. Hip Spacers with a Metal-on-Cement Articulation Did Not Show Significant Surface Alterations of the Metal Femoral Head in Two-Stage Revision for Periprosthetic Joint Infection. Materials (Basel). 2020 Sep 2;13(17):3882. 
• Rues S, Schmitter M, Kappel S, Sonntag R, Kretzer JP, Nadorf J.  Effect of bone quality and quantity on the primary stability of dental implants in a simulated bicortical placement. Clin Oral Investig. 2020 Jul 10. 
• Reiner T, Sonntag R, Kretzer JP, Clarius M, Jakubowitz E, Weiss S, Ewerbeck V, Merle C, Moradi B, Kinkel S, Gotterbarm T, Hagmann S. The Migration Pattern of a Cementless Hydroxyapatite-Coated Titanium Stem under Immediate Full Weight-Bearing-A Randomized Controlled Trial Using Model-Based RSA.  J Clin Med. 2020 Jul 2;9(7):2077. 
• Helbig L, Guehring T, Titze N, Nurjadi D, Sonntag R, Armbruster J, Wildemann B, Schmidmaier G, Gruetzner AP, Freischmidt H. A new sequential animal model for infection-related non-unions with segmental bone defect. BMC Musculoskelet Disord. 2020 May 27;21(1):329. 
• Beckmann NA, Bitsch RG, Schonhoff M, Siebenrock KA, Schwarze M, Jaeger S. Comparison of the Primary Stability of Porous Tantalum and Titanium Acetabular Revision Constructs. Materials (Basel). 2020 Apr 10;13(7)
• Reiner T, Sorbi R, Müller M, Nees T, Kretzer JP, Rickert M, Moradi B. Blood Metal Ion Release After Primary Total Knee Arthroplasty: A Prospective Study. Orthop Surg. 2020 Apr;12(2):396-403. 
• Bormann T, Mai PT, Gibmeier J, Sonntag R, Müller U, Kretzer JP. Corrosion Behavior of Surface-Treated Metallic Implant Materials. Materials (Basel). 2020 Apr 25;13(9):2011. 
• Braun S, Jaeger S, Sonntag R, Schroeder S, Kretzer JP.  Quantitative Measurements of Backside Wear in Acetabular Hip Joint Replacement: Conventional Polyethylene Versus Cross-Linked Polyethylene. Materials (Basel). 2020 Apr 15;13(8):1854.  
• Bormann T, Jäger S, Kretzer JP, Nebel L, Clarius L, Omlor G, Bitsch R, Lehner B. Retrieval Analysis of Modern Knee Tumor Megaendoprosthesis Shows Considerable Volumetric Metal Wear Generated at the Rotating Hinge. Materials (Basel). 2020 Mar 26;13(7):1519. 
• Xu J, Sonntag R, Kretzer JP, Taylor D, Forst R, Seehaus F.  Model-Based Roentgen Stereophotogrammetric Analysis to Monitor the Head-Taper Junction in Total Hip Arthroplasty in Vivo-And They Do Move.  Materials (Basel). 2020 Mar 27;13(7):1543. 
• Jaeger S, Uhler M, Schroeder S, Beckmann NA, Braun S. Comparison of Different Locking Mechanisms in Total Hip Arthroplasty: Relative Motion between Cup and Inlay. Materials (Basel). 2020 Mar 19;13(6):1392. 
• Cheng X, Dirmeier SC, Haßelt S, Baur-Melnyk A, Kretzer JP, Bader R, Utzschneider S, Paulus AC. Biological Reactions to Metal Particles and Ions in the Synovial Layer of Mice. Materials (Basel). 2020 Feb 26;13(5):1044.
• Reiner T, Klotz MC, Seelmann K, Hertzsch F, Innmann MM, Streit MR, Nees TA, Moradi B, Merle C, Kretzer JP, Gotterbarm T. Long-Term Results of a Second-Generation, Small-Diameter, Metal-On-Metal Bearing in Primary Total Hip Arthroplasty at 14-year Follow-Up. Materials (Basel). 2020 Jan 24;13(3):557. 
• Schroeder S, Braun S, Mueller U, Sonntag R, Jaeger S, Kretzer JP. Particle analysis of shape factors according to American Society for Testing and Materials. J Biomed Mater Res B Appl Biomater. 2020 Jan;108(1):225-233. 
• Schroeder S, Braun S, Mueller U, Vogel M, Sonntag R, Jaeger S, Kretzer JP. Carbon-fibre-reinforced PEEK: An alternative material for flexion bushings of rotating hinged knee joints? J Mech Behav Biomed Mater. 2020 Jan;101:103434.

2019

• Tsitlakidis S, Vot L, Westhauser F, Jaeger S, Klotz MC. Periprosthetic fracture morphology of a femoral neck prosthesis: An in vitro study. Proc Inst Mech Eng H. 2019 Nov;233(11):1175-1182. 
• Paulus AC, Ebinger K, Cheng X, Haßelt S, Weber P, Kretzer JP, Bader R, Utzschneider S. Local Biological Reactions and Pseudotumor-Like Tissue Formation in relation to Metal Wear in a Murine In Vivo Model. Biomed Res Int. 2019 Oct 29;2019:3649838. 
• Braun S, Vardag S, Mueller U, Schroeder S, Sonntag R, Bormann T, Gotterbarm T, Kretzer JP. Backside wear, particle migration and effectiveness of screw hole plugs in acetabular hip joint replacement with cross-linked polyethylene. Acta Biomater. 2019 Oct 1;97:239-246. 
• Schwarze M, Schonhoff M, Beckmann NA, Eckert JA, Bitsch RG, Jäger S. Femoral Cementation in Knee Arthroplasty-A Comparison of Three Cementing Techniques in a Sawbone Model Using the ATTUNE Knee. J Knee Surg. 2019 Aug 21. 
• Almansour H, Sonntag R, Pepke W, Bruckner T, Kretzer JP, Akbar M. Impact of Electrocautery on Fatigue Life of Spinal Fusion Constructs-An In Vitro Biomechanical Study. Materials (Basel). 2019 Aug 3;12(15). pii: E2471. 
• Bischel OE, Nadorf J, Klein SB, Gantz S, Jakubowitz E, Kretzer JP, Arnholdt J, Seeger JB. Modular tumor prostheses: are current stem designs suitable for distal femoral reconstruction? A biomechanical implant stability analysis in Sawbones. Arch Orthop Trauma Surg. 2019 Jun;139(6):843-849. 
• Sonntag R, Gibmeier J, Pulvermacher S, Mueller U, Eckert J, Braun S, Reichkendler M, Kretzer JP. Electrocautery Damage Can Reduce Implant Fatigue Strength: Cases and in Vitro Investigation. J Bone Joint Surg Am. 2019 May 15;101(10):868-878. 
• Trieb K, Huber D, Sonntag R, Kretzer JP. Finite Element Analysis andBiomechanical Testing of the New MiniMIS Short Stem. Z Orthop Unfall. 2019 Apr;157(2):188-193. 
• Reiner T, Bader N, Panzram B, Bülhoff M, Omlor G, Kretzer JP, Raiss P, Zeifang F. In vivo blood metal ion levels in patients after total shoulder arthroplasty. J Shoulder Elbow Surg. 2019 Mar;28(3):539-546. 
• Meng F, Jaeger S, Sonntag R, Schroeder S, Smith-Romanski S, Kretzer JP. How prosthetic design influences knee kinematics: a narrative review of tibiofemoral  kinematics of healthy and joint-replaced knees. Expert Rev Med Devices. 2019 Feb;16(2):119-133. 
• Braun S, Sonntag R, Schroeder S, Mueller U, Jaeger S, Gotterbarm T, Kretzer JP. Backside wear in acetabular hip joint replacement. Acta Biomater. 2019 Jan 1;83:467-476.

2018

• Beckmann NA, Hasler J, Moradi B, Schlegel UJ, Gotterbarm T, Streit MR. Long-term Results of Acetabular Reconstruction using Ganz Acetabular Rings . J Arthroplasty. 2018 Nov;33(11):3524-3530.
• Sowa B, Bochenek M, Braun S, Kretzer JP, Zeifang F, Bruckner T, Walch G, Raiss P. The subchondral bone layer and glenoid implant design are relevant for primary stability in glenoid arthroplasty. Arch Orthop Trauma Surg. 2018 Nov;138(11):1487-1494. 
• Braun S, Schroeder S, Mueller U, Sonntag R, Buelhoff M, Kretzer JP. Influence of joint kinematics on polyethylene wear in anatomic shoulder joint arthroplasty. J Shoulder Elbow Surg. 2018 Sep;27(9):1679-1685. 
• Eckert JA, Jaeger S, Klotz MC, Schwarze M, Bitsch RG.Can intraoperative measurement of bone quality help in decision making for cementless unicompartmental knee arthroplasty? Knee. 2018 Aug;25(4):609-616.
• Perino G, Sunitsch S, Huber M, Ramirez D, Gallo J, Vaculova J, Natu S, Kretzer JP, Müller S, Thomas P, Thomsen M, Krukemeyer MG, Resch H, Hügle T, Waldstein W, Böettner F, Gehrke T, Sesselmann S, Rüther W, Xia Z, Purdue E, Krenn V. Diagnostic guidelines for the histological particle algorithm in the periprosthetic neo-synovial tissue. BMC Clin Pathol. 2018 Aug 25;18:7.
• Helbig L, Omlor GW, Ivanova A, Guehring T, Sonntag R, Kretzer JP, Minkwitz S, Wildemann B, Schmidmaier G. Bone morphogenetic proteins - 7 and - 2 in the treatment of delayed osseous union secondary to bacterial osteitis in a rat model. BMC Musculoskelet Disord. 2018 Jul 27;19(1):261.
• Sowa B, Bochenek M, Braun S, Zeifang F, Kretzer JP, Bruckner T, Walch G, Raiss P. Replacement options for the B2 glenoid in osteoarthritis of the shoulder: a biomechanical study. Arch Orthop Trauma Surg. 2018 Jul;138(7):891-899. 
• Reiner T, Schwarze M, Panzram B, Klotz MC, Bitsch RG, Jaeger S. The influence of the twin peg design on femoral Interface temperature and maximum load to failure in cemented Oxford unicompartmental knee arthroplasty. Clin Biomech (Bristol, Avon). 2018 Jun;55:23-27. 
• Beckmann NA, Bitsch RG, Janoszka MB, Klotz MC, Bruckner T, Jaeger S. Treatment of High-Grade Acetabular Defects: Do Porous Titanium Cups Provide Better Stability Than Traditional Titanium Cups When Combined With an Augment? J Arthroplasty. 2018 Jun;33(6):1838-1843
• Beckmann NA, Bitsch RG, Gondan M, Schonhoff M, Jaeger S. Comparison of the stability of three fixation techniques between porous metal acetabular components and augments. Bone Joint Res. 2018 May 5;7(4):282-288.
• Mueller U, Panzram B, Braun S, Sonntag R, Kretzer JP. Mixing of Head-Stem Components in Total Hip Arthroplasty. J Arthroplasty. 2018 Mar;33(3):945-951.
• Beckmann NA, Jaeger S, Janoszka MB, Klotz MC, Bruckner T, Bitsch RG. Comparison of the Primary Stability of a Porous Coated Acetabular Revision Cup With a Standard Cup. J Arthroplasty. 2018 Feb;33(2):580-585. 
• Kretzer JP, Mueller U, Streit MR, Kiefer H, Sonntag R, Streicher RM, Reinders J. Ion release in ceramic bearings for total hip replacement: Results from an in vitro and an in vivo study. Int Orthop. 2018 Jan;42(1):65-70.

2017

• Sonntag R, Feige K, Dos Santos CB, Kretzer JP. Hard Chrome-Coated and Fullerene-Doped Metal Surfaces in Orthopedic Bearings Materials (Basel). 2017 Dec 20;10(12). pii: E1449
• Mueller U, Braun S, Schroeder S, Schroeder M, Sonntag R, Jaeger S, Kretzer JP. Influence of humeral head material on wear performance in anatomic shoulder joint arthroplasty. J Shoulder Elbow Surg. 2017 Oct;26(10):1756-1764. 
• Mueller U, Braun S, Schroeder S, Sonntag R, Kretzer JP. Same Same but Different? 12/14 Stem and Head Tapers in Total Hip Arthroplasty. J Arthroplasty. 2017 Oct;32(10):3191-3199. 
• Nadorf J, Klein SB, Gantz S, Jakubowitz E, Kretzer JP, Bischel OE . Influence of implant length and bone defect situation on primary stability after distal femoral replacement in vitro. Knee. 2017 Oct;24(5):1016-1024.  
• Sonntag R, Braun S, Al-Salehi L, Reinders J, Mueller U, Kretzer JP. Three-dimensional friction measurement during hip simulation. PLoS One. 2017 Sep 8;12(9):e0184043. 
• Krenn S, Thomsen M, Usbeck S, Scheuber LF, Boettner F, Krukemeyer MG, Huber M, Kretzer JP, Gehrke T, Krenn V. Supramacroparticulate PE in 6 different joint endoprostheses localisations: An indicator for PE damage? Pathol Res Pract. 2017 Aug;213(8):987-996.
• Jonitz-Heincke A, Tillmann J, Klinder A, Krueger S, Kretzer JP, Hol PJ, Paulus AC, Bader R. The Impact of Metal Ion Exposure on the Cellular Behavior of Human Osteoblasts and PBMCs: In Vitro Analyses of Osteolytic Processes. Materials (Basel). 2017 Jul 3;10(7). pii: E734. 
• Klotz MCM, Jager S, Kretzer JP, Beckmann NA, Thomsen M, Bitsch RG. Cementing a polyethylene cup into a well fixed acetabular metal-on-metal resurfacing component? An experimental investigation. Hip Int. 2017 Jul 25;27(4):373-377.
• Mueller U, Reinders J, Smith-Romanski S, Kretzer JP. Wear Performance of Calcium Carbonate-Containing Knee Spacers. Materials (Basel). 2017 Jul 15;10(7). pii: E805. 
• Fitz W, Jager S, Rieger JS, Seebach E, Bitsch RG Femoral rotation in total knee arthroplasty: a comparison of patient individualized jigs with gap balancing in relation to anatomic landmarks Knee Surg Sports Traumatol Arthrosc. 2017 Jun;25(6):1712-1719. 
• Nadorf J, Kinkel S, Gantz S, Jakubowitz E, Kretzer JP. Tibial revision knee arthroplasty with metaphyseal sleeves: The effect of stems on implant fixation and bone flexibility. PLoS One. 2017 May 8;12(5):e0177285.
• Bulhoff M, Reinders J, Zeifang F, Raiss P, Muller U, Kretzer JP Surface and form alterations in retrieved shoulder hemiarthroplasty. J Shoulder Elbow Surg. 2017 Mar;26(3):521-528.
• Streit MR, Streit J, Walker T, Bruckner T, Philippe Kretzer J, Ewerbeck V, Merle C, Aldinger PR, Gotterbarm T. Minimally invasive Oxford medial unicompartmental knee arthroplasty in young patients. Knee Surg Sports Traumatol Arthrosc. 2017 Mar;25(3):660-668.  
• Schwarze M, Borsai V, Bitsch RG, Eckert JA, Jager S. Letter to the Editor - "Cementing the femoral component in total knee arthroplasty: Which technique is the best?" by Michael Vaninbroukx et al. Knee. 2017 Mar;24(2):491-493.
• Raiss P, Edwards TB, Bruckner T, Loew M, Zeifang F, Walch G. Reverse arthroplasty for patients with chronic locked dislocation of the shoulder (type 2 fracture sequela). J Shoulder Elbow Surg. 2017 Feb;26(2):279-287.
• Sonntag R, Kretzer JP: Die Qual der Wahl: welche Hüft-Gleitpaarung für die orthopädische Praxis? Ein Update. OUP 2017; 4: 196–200 

• Kretzer JP, Van Der Straeten C. (Eds.) Novel Research about Biomechanics and Biomaterials Used in Hip, Knee and Related Joints. 347 pages 2021. Materials, MDPI (Basel) 
• Kamali A, Kretzer JP (ed.): Tribological Performance of Artificial Joints. 178 pages. 2019. MDPI, Basel 
• Krenn V, Perino G, Thomas P, Thomsen M, Huber M, Gehrke T, Trampuz A, Hügle T,  Kretzer JP, Boettner T, Tikhilov R, Kusaba A, Sesselmann S: Clinical Management of Joint Arthroplasty - Histological Diagnosis of Implant-Associated Pathologies. 43 pages. 2017 Springer, Berlin
• Sonntag R, Kretzer JP (ed.): Materials for Total Joint Arthroplasty  - Biotribology of Potential Bearings. 474 pages. 2015. Imperial College Press, London
• Sonntag R, Reinders J, Kretzer JP:  Bio-Tribological Demands 2015; 1-13 In: Sonntag R, Kretzer JP (ed.): Materials for Total Joint Arthroplasty  - Biotribology of Potential Bearings. Imperial College Press, London
• Sonntag R, Beckmann N, Reinders J, Kretzer JP: Evolutionary History of Arthroplasty 2015; 15-40 In: Sonntag R, Kretzer JP (ed.): Materials for Total Joint Arthroplasty  - Biotribology of Potential Bearings. Imperial College Press, London
• Kretzer JP, Reinders J, Müller U, Schröder C, Zietzt C, Gibney C, Sonntag R: In Vitro and In Vivo Wear Evaluation 2015; 41-61 In: Sonntag R, Kretzer JP (ed.): Materials for Total Joint Arthroplasty  - Biotribology of Potential Bearings. Imperial College Press, London
• Sonntag R, Reinders J, Gibmeier J, Jaeger S, Kretzer JP: Ti-6Al-4V Fatigue Strength After Shot Peening: The Role of a Corrosive Environment 2014; 89-108 In: Mitchell MR, Smith SW, Woods T, Berg B (ed.): STP 1559 Fatigue and Fracture of Medical Metallic Materials and Devices: 3rd Volume. ASTM International, West Conshohocken                                                           
• Thomas P, Summer B, Thomsen M, Krenn V, Kretzer JP: Why Metal-on-Metal: What Laboratory Tests Have Shown Us. 2014; 165-172 In: Jones LC, Haggard WO, Greenwald AS (ed.): Metal-on-Metal Bearings - A Clinical Practicum. Springer, New York Heidelberg Dordrecht London  
• Sonntag R, Reinders J, Gibmeier J, Kretzer JP: Fatigue strengthening of an orthopaedic Ti6Al4V alloy. What is the potential of a final shot peening process? July 2013; 217-237 In: Davim JP (ed.): BIOMATERIALS AND MEDICAL TRIBOLOGY: Research & development. Woodhead Publishing, Cambridge 
• Jaeger S, Reinders J, Rieger S, Kretzer JP: Wear determination on retrieved metal-on-metal hip arthoplasty: An example of extreme wear. July 2013; 239-251 In: Davim JP (ed.): BIOMATERIALS AND MEDICAL TRIBOLOGY: Research & development. Woodhead Publishing, Cambridge
• Kretzer JP, Sonntag R, Reinders J: Tribologie 2012; 123-124  In: Mittelmeier W, Josten C, Siebert HR, Niethard FU, Marzi I, Klüß D (ed.): Forschung in Orthopädie und Unfallchirurgie -Bestandsaufnahme und Ausblick- Weißbuch Forschung in Orthopädie und Unfallchirurgie. Deutsche Gesellschaft für Orthopädie und Unfallchirurgie e.V. Berlin           
• Ewerbeck V, Bitsch RG, Kretzer JP: Endoprothetik primär 2012; 152-153  In: Mittelmeier W, Josten C, Siebert HR, Niethard FU, Marzi I, Klüß D (ed.): Forschung in Orthopädie und Unfallchirurgie -Bestandsaufnahme und Ausblick- Weißbuch Forschung in Orthopädie und Unfallchirurgie. Deutsche Gesellschaft für Orthopädie und Unfallchirurgie e.V. Berlin
• Kretzer JP: Biotribology of Total Hip Replacement: the Metal-on-Metal Articulation. July 2010; 1-49. In: Davim JP (ed.): Biotribology. ISTE, London and John Wiley & Sons, Hoboken          

• The SICOT/AAOS Annual Meeting Scholarship 2019
• Wissenschaftspreis 2019 der AE (Arbeitsgemeinschaft Endoprothetik), Arbeitsgruppenpreis     
• Themistocles-Gluck-Preis 2019 für Endoprothetik der Deutschen Gesellschaft für Orthopädie und Orthopädischer Chirurgie e. V. (DGOOC)
• Young Investigator Award 2019 (2. Platz, DGfB: Deutsche Gesellschaft für Biomechanik), April 2019
• AMTI Biomechanical Prize der Deutschen Gesellschaft für Biomechanik 
• Wissenschaftspreis 2015 der AE (Arbeitsgemeinschaft Endoprothetik)
• Reisestipendium der Deutschen Sektion SICOT zum SICOT Congress 2014 
• Heinz-Mittelmeier-Forschungspreis der DGOOC (Deutschen Gesellschaft für Orthopädie und Orthopädische Chirurgie) 2012
• Wissenschaftspreis 2011 der AE (Arbeitsgemeinschaft Endoprothetik)
• Reisestipendium der Deutschen Gesellschaft für Biomechanik 2010
• Poster Award, 23rd Annual Congress of the International Society for Technology in Arthroplasty (ISTA) 2010
• Wissenschaftspreis 2009 der Deutschen Arthrose Stiftung
• Poster Preis, Deutscher Kongress für Orthopädie und Unfallchirurgie (DKOU) 2009
• Young Investigator Award 2009 der Deutschen Gesellschaft für Biomechanik