Prof. Dr. Lukas Konstantinidis, MD, Senior Orthopaedic Consultant and Trauma Surgeon
Treatment focuses:
joint-preserving hip surgery, hip arthroplasty, knee arthroplasty, revision surgery

Even during my first internship when I started studying, I was fascinated by the incredible options of endoprosthetics. This speciality combines great craftsmanship with a deep knowledge in anatomy. During my time at university I realized that an artificial joint is not the final stop in treating a patient but instead the beginning of a chapter with a new quality of life and enjoying being active and sports.
Before the artificial joint I always explore the options of a joint-preserving procedure. This includes repositioning the bone, procedures on the joint capsule, thigh and the labrum. My primary goals are achieving pain-free mobility and avoiding osteoarthritis of the hip in my patients.
I have set high standards for myself as a specialist in endoprosthesis with accuracy down to the millimeter. Every human has a slightly different anatomy and even the smallest deviations in hip or knee replacement determine success or failure. Precise planning beforehand, the possibility of computer-assisted navigation and gentle AMIS technique for hip surgeries help me implement this philosophy.
The AMIS technique is an innovative surgical method in which a hip is replaced particularly gently using a minimally-invasive port from the front. As a surgeon, I don't damage important muscle groups or nerves in the groin area in the process. The risk of post-op hip pain, limping and instability is low, and patients can be mobilized quickly. I am a primary care doctor for the AMIS technique and regularly instruct hip surgeons in this technique.
Defects in the implanted prostheses can arise even years after the procedure, noticeable by pain. I offer every patient who is not satisfied with their implant the option to investigate the problems and provide them with treatment options. My recommendations are always based on scientific findings and experience, and are far from being influenced by unfounded opinions or economic factors.
The satisfaction of my patients, particularly in joint-preserving hip surgery, resulted in me making the Focus list of physicians in 2021 and 2022, which I'm quite proud of.
Additional qualifications:
- Fellow for the AMIS technique (anterior minimally-invasive surgery)
- Specialist for Trauma surgeon
- Special orthopedic surgery
Clinical focuses:
- Joint-preserving hip surgery: arthroscopic and mini-open CAM correction and labrum repair, surgical dislocation of the hip, periacetabular osteotomy, osteotomies of the proximal femur
- Primary hip arthroplasty: minimally-invasive AMIS technique
- Revision hip arthroplasty for any severity
- Primary knee endoprosthetics: unicompartmental partial prosthesis, resurfacing, computer-assisted navigation
- Revision endoprosthetics of the knee of any severity
Medical Career:
- 1999 to 2004: Studied human medicine at University of Heidelberg
- 2006 to 2011: Orthopaedist and trauma surgeon at University Hospital Freiburg - Orthopedics and Trauma Surgery
Medical placements:
- 2015 to 2016: Senior physician at University Hospital Freiburg - Orthopaedics and Trauma Surgery
- 2017 to 2018: Deputy section head for endoprosthetics, senior surgeon and coordinator of the endoprosthetics centre at University Hospital Freiburg - Orthopaedics and Trauma Surgery
- 2019 to 2022: Senior consultant, section head for endoprosthetics and head of the endoprosthetics centre at University Hospital Freiburg - Orthopaedics and Trauma Surgery
- Awarded the title "Extraordinary professor"
- 2022 to present: Orthopaedist and trauma surgeon at Gelenk-Klinik Gundelfingen
Doctorate dissertation:
- „Robotic-assisted thoracoscopic gastro-oesophageal anastomosis versus gastro-oesophageal anastomosis using conventional thoracotomy: comparison of stress response and the cardiopulmonary function“
Habilitation dissertation:
- „Biomechanical analyses on osteosynthetic care of osteoporosis-related fractures of the proximal femur“
Fellowships:
- German Hip Society (DHG)
- German Society of Prosthetics e. V.
- ComGen
- German Society for Trauma Surgery (DGU)
- AO Trauma Germany
Publications
- Fuchs A, Häussermann P, Hömig D, Ochs BG, Klopfer T, Müller CA, Helwig P, Konstantinidis L.
10-year follow-up of the Columbus knee prostheses system in a prospective multicenter study.
Arch Orthop Trauma Surg. 2021 Sep 9. - Mayr MF, Südkamp NP, Konstantinidis L.
Periprosthetic fracture management around total knee arthroplasty.
J Orthop. 2021 Jan 5;23:239-245 - Bohler S, Afreen S, Fernandez-Orth J, Demmerath EM, Molnar C, Wu Y, Weiss JM, Mittapalli VR, Konstantinidis L, Schmal H, Kunze M, Erlacher M.
Inhibition of the anti-apoptotic protein MCL-1 severely suppresses human hematopoiesis.
J Orthop. 2021 Jan 5;23:239-245 - Troilo A, Wehr C, Janowska I, Venhoff N, Thiel J, Rawluk J, Frede N, Staniek J, Lorenzetti R, Schleyer MT, Herget GW, Konstantinidis L, Erlacher M, Proietti M, Camacho-Ordonez N, Voll RE, Grimbacher B, Warnatz K, Salzer U, Rizzi M.
Nonpermissive bone marrow environment impairs early B-cell development in common variable immunodeficiency.
Blood. 2020 Apr 23;135(17):1452-1457. - Wagner FC, Feucht MJ, Konstantinidis L, Hohloch L, Yilmaz T, Bernstein A, Südkamp NP, Reising K.
Biomechanical dynamic comparison of biodegradable pins and titanium screws for operative stabilization of displaced radial head fractures.
Proc Inst Mech Eng H. 2020 Jan;234(1):74-80. - Murray CE, Fuchs A, Grünewald H, Godkin O, Südkamp NP, Konstantinidis L.
Identifying Disparities in the Management of Hip Fractures Within Europe: A Comparison of 3 Health-Care Systems.
Geriatr Orthop Surg Rehabil. 2019 Sep. - Grünewald D, Langenmair E, Hirschmüller A, Maier D, Südkamp NP, Konstantinidis L.
Biomechanical in vitro evaluation of a ready-to-use calcium phosphate cement implanted to augment intramedullary nail fixation of a three-part humeral head fracture model.
Proc Inst Mech Eng H. 2019 Jul;233(7):706-711. - Hirschmüller A, Schoch W, Baur H, Wondrasch B, Konstantinidis L, Südkamp NP, Niemeyer P.
Rehabilitation before regenerative cartilage knee surgery: a new prehabilitation guideline based on the best available evidence.
Trauma Surg. 2019 Feb;139(2):217-230. doi: 10.1007/s00402-018-3026-6. - Fuchs A, Häussermann P, Hömig D, Ochs BG, Müller CA, Helwig P, Konstantinidis L.
5-Jahres-Follow-up von 210 Columbus-Knietotalendoprothesen: Eine prospektive multizentrische Studie [5-year follow-up of 210 Columbus knee prostheses : A prospective multicentre study].
Orthopade. 2018 Oct;47(10):859-866. - Kaufmann KB, Baar W, Rexer J, Loeffler T, Heinrich S, Konstantinidis L, Buerkle H, Goebel U.
Evaluation of hemodynamic goal-directed therapy to reduce the incidence of bone cement implantation syndrome in patients undergoing cemented hip arthroplasty - a randomized parallel-arm trial.
BMC Anesthesiol. 2018 Jun 6;18(1):63. - Bode G, Hammer T, Karvouniaris N, Feucht MJ, Konstantinidis L, Südkamp NP, Hirschmüller A.
Patellar tendinopathy in young elite soccer- clinical and sonographical analysis of a German elite soccer academy.
BMC Musculoskelet Disord. 2017 Aug 8;18(1):344. - Langenmair ER, Konstantinidis L, Südkamp NP, Helwig P.
Prosthetic Joint Infection after Total Hip Arthroplasty: Results of an Online Questionnaire about Current Diagnostic and Therapeutic Procedures in 107 German Hospitals.
Z Orthop Unfall. 2017 Jun;155(3):310-317. German. doi: 10.1055/s-0043-100098. Epub 2017 Jul 6. - Hirschmüller A, Andres T, Schoch W, Baur H, Konstantinidis L, Südkamp NP, Niemeyer P.
Quadriceps Strength in Patients With Isolated Cartilage Defects of the Knee: Results of Isokinetic Strength Measurements and Their Correlation With Clinical and Functional Results.
Orthop J Sports Med. 2017 May 26;5(5) - Morath O, Kubosch EJ, Taeymans J, Zwingmann J, Konstantinidis L, Südkamp NP, Hirschmüller A.
The effect of sclerotherapy and prolotherapy on chronic painful Achilles tendinopathy-a systematic review including meta-analysis.
Scand J Med Sci Sports. 2018 Jan;28(1):4-15. - Eberbach H, Hohloch L, Feucht MJ, Konstantinidis L, Südkamp NP, Zwingmann J.
Operative versus conservative treatment of apophyseal avulsion fractures of the pelvis in the adolescents: a systematical review with meta-analysis of clinical outcome and return to sports.
BMC Musculoskelet Disord. 2017 Apr 19;18(1):162. - Erdle B, Izadpanah K, Jaeger M, Jensen P, Konstantinidis L, Zwingmann J, Südkamp NP, Maier D.
Comparative analysis of locking plate versus hook plate osteosynthesis of Neer type IIB lateral clavicle fractures.
BMC Musculoskelet Disord. 2017 Apr 19;18(1):162. - Konstantinidis L, Schmidt B, Bernstein A, Hirschmüller A, Schröter S, Südkamp NP, Helwig P.
Plate fixation of periprosthetic femur fractures: What happens to the cement mantle?
Proc Inst Mech Eng H. 2017 Feb;231(2):138-142. - Hirschmüller A, Steffen K, Fassbender K, Clarsen B, Leonhard R, Konstantinidis L, Südkamp NP, Kubosch EJ
German translation and content validation of the OSTRC Questionnaire on overuse injuries and health problems.
Br J Sports Med. 2017 Feb;51(4):260-263. - Kubosch EJ, Kosel J, Steffen K, Konstantinidis L, Kubosch D, Südkamp NP, Hirschmüller A.
Upcoming Paralympic summer games in Rio: what did the German medical team learn from the London Games?
J Sports Med Phys Fitness. 2017 Nov;57(11):1486-1493. - Konstantinidis L, Helwig P, Hirschmüller A, Langenmair E, Südkamp NP, Augat P.
When is the stability of a fracture fixation limited by osteoporotic bone?
Injury. 2016 Jun;47 Suppl 2:S27-32. - Takai H, Konstantinidis L, Schmal H, Helwig P, Knöller S, Südkamp N, Hauschild O.
Oblique Axis Body Fracture: An Unstable Subtype of Anderson Type III Odontoid Fractures-Apropos of Two Cases.
Case Rep Orthop. 2016; - Thielemann FW, Konstantinids L, Herget GW, Knothe D, Helwig P, Sudkamp NP, Hauschild O.
Effect of Rotational Component Alignment on Clinical Outcome 5 to 7 Years After TKA With the Columbus Knee System.
Orthopedics. 2016 May;39(3 Suppl):S50-5. - Hohloch L, Konstantinidis L, Wagner FC, Strohm PC, Südkamp NP, Reising K.
Biomechanical comparison of different external fixator configurations for stabilization of supracondylar humerus fractures in children.
Clin Biomech (Bristol, Avon). 2016 Feb;32:118-23. - Neubauer J, Benndorf M, Lang H, Lampert F, Kemna L, Konstantinidis L, Neubauer C, Reising K, Zajonc H, Kotter E, Langer M, Goerke SM.
Comparison of Multidetector Computed Tomography and Flat-Panel Computed Tomography Regarding Visualization of Cortical Fractures, Cortical Defects, and Orthopedic Screws: A Phantom Study.
Medicine (Baltimore). 2015 Aug;94(31):e1231. - Wagner FC, Konstantinidis L, Hohloch N, Hohloch L, Suedkamp NP, Reising K.
Biomechanical evaluation of two innovative locking implants for comminuted olecranon fractures under high-cycle loading conditions.
Injury.2015;46(6):985-9. - Kubosch D, Konstantinidis L, Helwig P, Hirschmüller A, Strohm PC, Südkamp NP.
Relationship between autologous bone graft osteointegration and correction loss after antero-posterior spondylodesis of traumatic vertebral body fracture.
Orthop Traumatol Surg Res. 2015 Apr;101(2):221-5. - Konstantinidis L, Grünewald H, Hauschild O, Schröter S, Hirschmüller A, Südkamp NP, Helwig P.
Sliding of the load carrier in third-generation intramedullary nails for proximal femur fractures: an in vitro mechanical comparison study.
Proc Inst Mech Eng H. 2015 Feb;229(2):110-4. - Reising K, Konstantinidis L, Helwig P, Wagner FC, Südkamp NP, Strohm PC.
Biomechanical testing of an innovative fixation procedure to stabilize olecranon osteotomy.
Proc Inst Mech Eng H. 2014 Nov;228(11):1146-53. - Schröter S, Freude T, Kopp MM, Konstantinidis L, Döbele S, Stöckle U, van Heerwaarden R
Smoking and unstable hinge fractures cause delayed gap filling irrespective of early weight bearing after open wedge osteotomy.
Arthroscopy. 2015 Feb;31(2):254-65. - Reising K, Konstantinidis L, Helwig P, Wagner FC, Südkamp NP, Strohm PC.
Minimally invasive stabilization of distal humerus fractures: a pilot study with biomechanical evaluation.
Technol Health Care. 2014;22(6):909-13. - Helwig P, Morlock J, Oberst M, Hauschild O, Hübner J, Borde J, Südkamp NP,
Konstantinidis L.
Periprosthetic joint infection--effect on quality of life.
Int Orthop. 2014 May;38(5):1077-81. - Schröter S, Konstantinidis L, Kraus TM, Stuby F, Stöckle U, Freude T.
Open wedge re-correction high tibial osteotomy in an elderly patient with a varus angulated non-united dome-shaped high tibial osteotomy.
J Zhejiang Univ Sci B. 2013 Nov;14(11):1054-8. - Konstantinidis L, Papaioannou C, Blanke P, Hirschmüller A, Südkamp NP, Helwig P.
Failure after osteosynthesis of trochanteric fractures. Where is the limit of osteoporosis?
Osteoporos Int. 2013 Oct;24(10):2701-6. - Helwig P, Konstantinidis L, Hirschmüller A, Miltenberger V, Kuminack K, Südkamp NP, Hauschild O.
Tibial cleaning method for cemented total knee arthroplasty: An experimental study.
Indian J Orthop. 2013 Jan;47(1):18-22. - Konstantinidis L, Papaioannou C, Hirschmüller A, Pavlidis T, Schroeter S, Südkamp NP, Helwig P.
Intramedullary nailing of trochanteric fractures: central or caudal positioning of the load carrier? A biomechanical comparative study on cadaver bones.
Injury. 2013 Jun;44(6):784-90. - Helwig P, Konstantinidis L, Hirschmüller A, Bernstein A, Hauschild O, Südkamp NP, Ochs BG.
Modular sleeves with ceramic heads in isolated acetabular cup revision in younger patients-laboratory and experimental analysis of suitability and clinical outcomes.
Int Orthop. 2013 Jan;37(1):15-9. - Hauschild O, Muenzberg M, Knothe D, Konstantinidis L, Helwig P, Sudkamp NP,
Thielemann FW.
Rotational limb alignment changes following total knee arthroplasty.
Knee Surg Sports Traumatol Arthrosc. 2013 Oct;21(10):2346-54. - Konstantinidis L, Papaioannou C, Hirschmüller A, Pavlidis T, Schröter S, Südkamp NP, Helwig P.
Effects of muscle-equivalent forces on the biomechanical behavior of proximal femur fracture models: a pilot study on artificial bones.
Proc Inst Mech Eng H. 2012 Sep;226(9):681-5. - Oberst M, Hauschild O, Konstantinidis L, Suedkamp NP, Schmal H.
Effects of three-dimensional navigation on intraoperative management and early postoperative outcome after open reduction and internal fixation of displaced acetabular fractures.
J Trauma Acute Care Surg. 2012 Oct;73(4):950-6. - Helwig P, Hindenlang U, Hirschmüller A, Konstantinidis L, Südkamp N, Schneider R.
A femoral model with all relevant muscles and hip capsule ligaments.
Comput Methods Biomech Biomed Engin. 2013;16(6):669-77. - Doser A, Helwig P, Konstantinidis L, Kuminack KF, Südkamp NP, Strohm PC.
Does the extent of prebending affect the stability of femoral shaft fractures stabilized by titanium elastic nails? A biomechanical investigation on an adolescent femur model.
J Pediatr Orthop. 2011 Dec;31(8):834-8. - Kromer P, Röcker K, Sommer A, Baur H, Konstantinidis L, Gollhofer A, Südkamp NP, Hirschmüller A.
Verletzungen und Überlastungsbeschwerden im paralympischen Radsport - eine Fragebogenerhebung bei Nationalkaderathleten [Acute and overuse injuries in elite paracycling - an epidemiological study].
Sportverletz. Sportschaden. 2011 Sep;25(3):167-72. German - Liodakis E, Liodaki E, Krettek C, Citak M, Gaulke R, Konstantinidis L, Kenawey M.
Can the viability of a nonunion be evaluated using SPECT/CT? A preliminary retrospective study.
Technol Health Care. 2011;19(2):103-8. - Konstantinidis L, Papaioannou C, Mehlhorn A, Hirschmüller A, Südkamp NP, Helwig P.
Salvage procedures for trochanteric femoral fractures after internal fixation failure: biomechanical comparison of a plate fixator and the dynamic condylar screw.
Proc Inst Mech Eng H. 2011 Jul;225(7):710-7. - Kubosch D, Milz S, Lohrmann C, Schwieger K, Konstantinidis L, Sprecher CM, Südkamp NP, Strohm PC.
Risk of graft fracture after dorso-ventral thoraco-lumbar spondylodesis: is there a correlation with graft size?
Eur Spine J. 2011 Oct;20(10):1644-9. doi: 10.1007/s00586-011-1895-2. Epub 2011 Jul 12. - Konstantinidis L, Helwig P, Seifert J, Hirschmüller A, Liodakis E, Südkamp NP, Oberst M.
Internal fixation of dorsally comminuted fractures of the distal part of the radius: a biomechanical analysis of volar plate and intramedullary nail fracture stability.
Arch Orthop Trauma Surg. 2011 Nov;131(11):1529-37. - Hirschmüller A, Frey V, Konstantinidis L, Baur H, Dickhuth HH, Südkamp NP, Helwig P.
Prognostic value of Achilles tendon Doppler sonography in asymptomatic runners.
Med Sci Sports Exerc. 2012 Feb;44(2):199-205. - Konstantinidis L, Hauschild O, Beckmann NA, Hirschmüller A, Südkamp NP, Helwig P.
Treatment of periprosthetic femoral fractures with two different minimal invasive angle-stable plates: Biomechanical comparison studies on cadaveric bones.
Injury. 2010 Dec;41(12):1256-61. - Hirschmüller A, Konstantinidis L, Baur H, Müller S, Mehlhorn A, Kontermann J, Grosse U, Südkamp NP, Helwig P.
Do changes in dynamic plantar pressure distribution, strength capacity and postural control after intra-articular calcaneal fracture correlate with clinical and radiological outcome?
Injury. 2011 Oct;42(10):1135-43. - Hauschild O, Konstantinidis L, Baumann T, Niemeyer P, Suedkamp NP, Helwig P.
Correlation of radiographic and navigated measurements of TKA limb alignment: a matter of time?
Knee Surg Sports Traumatol Arthrosc. 2010 Oct;18(10):1317-22. - Konstantinidis L, Mayer E, Strohm PC, Hirschmüller A, Südkamp NP, Helwig P.
Early surgery-related complications after anteroposterior stabilization of vertebral body fractures in the thoracolumbar region.
J Orthop Sci. 2010 Mar;15(2):178-84. doi: 10.1007/s00776-009-1444-6. - Hirschmüller A, Frey V, Deibert P, Konstantinidis L, Mayer F, Südkamp N, Helwig P.
Powerdopplersonografische Befunde der Achillessehnen von 953 Langstreckenläufern - eine Querschnittsstudie [Achilles tendon power Doppler sonography in 953 long distance runners - a cross sectional study].
Ultraschall Med. 2010 Aug;31(4):387-93. German. - Konstantinidis L, Helwig P, Strohm PC, Hirschmüller A, Kron P, Südkamp NP.
Clinical and radiological outcomes after stabilisation of complex intra-articular fractures of the distal radius with the volar 2.4 mm LCP.
Arch Orthop Trauma Surg. 2010 Jun;130(6):751-7. - Mehlhorn AT, Strohm PC, Müller CA, Konstantinidis L, Schmal H, Südkamp NP.
Der umgedrehte Plattenfixateur zur osteosynthetischen Stabilisierung bei erschwerter Frakturheilung am proximalen Femur [The reversed locked internal plate fixator as an alternative internal fixation of problematic proximal femur fractures].
Z Orthop Unfall. 2009 Sep-Oct;147(5):561-6. German. - Hauschild O, Konstantinidis L, Strohm PC, Niemeyer P, Suedkamp NP, Helwig P.
Reliability of leg alignment using the OrthoPilot system depends on knee position: a cadaveric study.
Knee Surg Sports Traumatol Arthrosc. 2009 Oct;17(10):1143-51. - Helwig P, Faust G, Hindenlang U, Hirschmüller A, Konstantinidis L, Bahrs C, Südkamp N, Schneider R.
Finite element analysis of four different implants inserted in different positions to stabilize an idealized trochanteric femoral fracture.
Injury. 2009 Mar;40(3):288-95.