Dr. Christian Sommer, MD

Specialist for Orthopaedic Surgery FMH

Subspecialty Footsurgery

Number of operated feet: over 8800 between 2003-2023

Author of two medical books:

"Fusschirurgie - Ein praktischer Leitfaden" Springer Verlag WienNewYork

"Operationstechniken in der Fusschirurgie" Springer Verlag WienNewYork

German, English, French, Italian


Swiss Foot and Ankle Society

American Orthopaedic Foot and Ankle Society

European Society of Foot and Ankle Surgeons

Society of Foot and Ankle Surgery GFFC

German Orthopaedic Foot and Ankle Society

Sociaty of Southern German Orthopaedic Surgeons

Foederatio Medicorum Helveticorum

Swiss Orthopaedic and Trauma Society

Swiss Society of Sports Medicine

Swiss Medical Rehabilitation Society

Swiss Society of Rheumatology

Swiss Insurance Medicine SIM

Society of Orthopaedic Surgeons of Central Switzerland ISO

Rheuma League Lucerne

Swiss Association of Physicians in Private Clinics

Swiss Flight Surgeons Association



Final Examination Medical School University of Basle, Switzerland 


Thesis and Promotion Dr. med.


Final Examination in Orthopaedic Surgery, Berne


Specialist for Orthopaedic Surgery FMH


1989 - 1991

Aeromedical Institute FAI, Swiss Air Force, Dübendorf, Switzerland 
A. Gubser, MD

1991 - 1992

Human Performance Laboratory, University of Calgary, Canada
Prof. B. M. Nigg, Dr. sc.
Postdoctoral Fellowship in Biomechanics of the Foot

1992 - 1993

Spital Davos, Switzerland, Department of Surgery
Prof. Dr. P. Matter, MD

1993 - 1996

Kantonsspital Bruderholz, Switzerland, Department of Orthopaedic Surgery
Prof. Dr. W. Müller, MD


Kantonsspital Liestal, Switzerland, Department of Orthopaedic Surgery
Prof. Dr. P. Ochsner, MD

1997 - 1999

Schulthess Clinic Zurich, Switzerland, Department of Orthopaedic Surgery
Dr. U. Munzinger, MD, Dr. B. Simmen, MD, Dr. T. Drobný, MD, Dr. H.K. Schwyzer, MD, Dr. P. Rippstein, MD

1999 - 2000

Senior physician Kantonsspital Baden, Switzerland, Department of Orthopaedic Surgery and Traumatology
Prof. Dr.H. Säuberli, MD, Dr. R.-P. Meyer, MD

2000 - 2002

Senior physician Schulthess Clinic Zurich, Switzerland, Department of Orthopaedic Surgery, Center for Foot Surgery, Shoulder Surgery
Dr. B. Simmen, MD, Dr. H. K. Schwyzer, MD, Dr. P. Rippstein, MD


Practice for Orthopaedic Surgery in Lucerne, Switzerland
Subspecialty Foot and Ankle Surgery


Opening of the Footclinic at Haldenstrasse 6 in Lucerne

01.10.2009 Affiliation at the private Pyramid Clinic at the Lake in Zurich
01.01.2018 Affiliation at the Merian Iselin Clinic in Basle
01.03.2018 Opening of the Footclinic Branch in Basle
01.08.2020 Affiliation at the Cantonal Hospital Obwalden in Sarnen
01.02.2020 Senior Consultant Foot and Ankle Surgery, Gesundheitszentrum Fricktal GZF, Rheinfelden



Roger A. Mann, MD, private clinic, former president of the American Foot and Ankle Society, Oakland, California, USA


Siegwart T. Hansen, MD, Chief of Foot Surgery, Harbourview Hospital, Seattle, USA


EFORT Travelling Fellowship, Czech and Slovak Republics


Lowell S. Weil, DPM, MBA, FACFAS, Foot&Ankle Institute, Chicago, USA

2017 Prof. Dr. med. Markus Walther, Schön Klinik, Munich, Germany

Teacher for Traumatology at the School of Physiotherapy Bethesda Hospital in Basle from November 1995 until November 1996.



Sommer C
Operationstechniken in der Fusschirurgie. Springer Verlag WienNewYork, December 2011

Sommer C
Fusschirurgie - Ein praktischer Leitfaden. Springer Verlag WienNewYork, 1st Edition July 2006, 2nd Edition October 2009


Sommer C
Prosthesis of the ankle joint -  A good option in treating severe arthrosis: Arab Health 2010; 2: 20-21

Sommer C
Knicksenkfuss infolge Insuffizienz der Tibialis-posterior-Sehne: Klinik, Pathomechanik und Behandlungsoptionen. Arthritis + Rheuma 2006; 26:157-163

Sommer C, Hintermann B, Nigg BM, van den Bogert AJ
Influence of Ankle Ligaments on Tibial Rotation: an in vitro study. Foot Ankle Int.1996 Feb;17(2): 79-84

Sommer C
Das instabile OSG: Behandlung der frischen Bandruptur. Eine Literaturuebersicht. Sportverletzung Sportschaden, Heft 4, 10.Jahrgang, Dezember 1996

Sommer C, Friederich NF, Müller W
Vorderer Knieschmerz nach VKB Ersatzplastik: Das adhaerente Ligamentum patellae. Sportmedizin und Sporttraumatologie, 1/1997

Sommer C, Friederich NF, Müller W
Improperly placed ACL grafts. Correlation between radiological parameters and clinical results. Knee Surg Sports Traumatol Arthrosc (2000) 8: 207-213

Hintermann B, Nigg BM, Sommer C
Foot Movement and Tendon Excursion: an in vitro study. Foot Ankle Int. 1994 Jul; 15( 7): 386-95

Hintermann B, Nigg BM, Sommer C, Cole GK
Transfer of Movement between Calcaneus and Tibia in vitro. Clinical Biomechanics 1994; 9: No.6

Hintermann B, Sommer C, Nigg BM
Influence of Ligament Transection on Tibial and Calcaneal Rotation with Loading and Dorsi-Plantarflexion. Foot Ankle Int. 1995 Sep;16(9): 567-71


Sommer C, Sommer M
Ein dynamisches Konzept in der Hallux-Chirurgie: Korrektur von grossen Intermetatarsale-Winkeln mittels distaler Osteotomietechnik.
12. Annual Meeting of the German Assoziation for Foot and Ankle e.V.
17th/18thMarch 2006, Heidelberg

Tieben Ch, Sommer C, Heller K
Traumatische Ruptur des Lig. calcaneonaviculare plantare (spring ligament) mit nachfolgend chronischer medialer Instabilitaet - ein Fallbericht
11. Annual Meeting of the German Assoziation for Foot and Ankle e.V.
15th/16th April 2005, Augsburg

Sommer C, Friederich N, Mueller W
Inkorrekt platzierte vordere Kreuzbandtransplantate: Korrelation zwischen radiologischen Parametern und klinischen Resultaten
2nd Basel International Knee Congress and Instructional Course, 1996 Basel
Congress of the Swiss Association for Sports Medicine, 1996 Lugano

2017 3. Symposium on wound management, 26.1.2017, Lucerne
"pressure reducing operations of the forefoot"

SFAS-Symposium 2017, 18.-19.5.2017, Basel
Anatomy Laboratory: Approaches & Anatomy in Foot & Ankle Surgery

11. Fuss-Fachtagung, 10. Juni 2017, Burgdorf
"Morton-Neuroma – often misdiagnosed"
"Mögliche Ursachen von Schmerzen am Grosszehengrundgelenk"

2016 10. GOTS-Swiss Summer Meeting, 26.-27.8.2016, Brunnen
Injuries in watersports - a Focus on foot and knee
"Therapy of arthrosis of the upper ankle joint - arthrodesis or prosthesis?"

EurAsia Heart Foundation, Nishni Tagil, Russland, Mai 2016
multiple presentations in foot and ankle surgery

2014 SFAS Jahreskongress, 9.5.2014 Lausanne
Percutaneous Footsurgery
"How to react to special demands of the patient?"

2012 SFAS Annual Meeting, 20.4.2012 Luzern
Organisation und Board "Metatarsalgia"


1st Swiss Russian Health Forum, 17.-18.10.2011, Moscow
Orthopaedic Session, Videos of Live Cases

2010 18. International Symposium for Foot and Ankle Surgery, 3.-4.12.2010, Munich, Germany
"Fusschirurgie: Schnittstellenprobleme zwischen operativem und konservativem Approach"

1. Annual Congress of Swiss Podiatrists SPV, 13th of November, Baden, Switzerland
"Typical Changes in Rheumatoid Arthritis of the Foot"
"Operations in Rheumatoid Arthritis of the Foot"

Lectures in Orhopaedic Surgery and Traumatology, University Hospital CHUV, 23rd of September, Lausanne, Switzerland
"Solutions de reprise pour échecs de six chirurgies typiques du pied et de la cheville"
"Problems and Solutions for Scarf"
"Problems and Solutions for acquired Flatfoot"

Fuss-Fachtagung, 5th of June, Burgdorf, Switzerland
"Hallux valgus and it's Problems", "Possible Causes of Pain in the great Toe" and "Unguis incarnatus in Diabetes"

2nd Annual Congress of  Orthotists SSOMV, 26th of April, Lucerne, Switzerland
"Surgery of the Forefoot"

Arab Health and 7th Middle East Orthopedic Conference, 25th - 28th of January, Dubai, United Arab Emirates
"Bunion Surgery - Indication and Technique"


Fuss-Fachtagung, 16th of May, Lucerne, Switzerland
"Morton's Neuroma" and "Case presentations"


Fuss-Fachtagung, 24th of May, Lucerne, Switzerland
"Common problems in forefoot surgery"

2nd FootMeeting, 24th of May, Lucerne, Switzerland
"Anatomic Landmarks" and Board



Foot Surgery International Congress, 29th -30th of November, Znojmo, Czech Republic
"Correction of large intermetatarsal angles with distal procedures in hallux valgus surgery".

1st FootMeeting, 22nd of November, Lucerne, Switzerland
"Surgery options of the foot" and Board

SFAS Annual Meeting 2007, Zurich, Switzerland
"Nerve entrapment of the foot" and "Fractures of the Calcaneus" - Board

International Congress on Bandages and Casts, 28th - 29th of September, Stuttgart
"Strategies in modern Foot and Ankle Surgery"


Congress of the Swiss Society for Orthopaedic and Traumatology (SGO), Lucerne, Switzerland
Scientific program "The foot" - Board

SFAS Annual Meeting 2006,
Lausanne, Switzerland
"Hallux rigidus & Forefoot Traumatology" - Board


SFAS Annual Meeting 2005, Basle, Switzerland
"Complications in Forefoot Surgery - an interactive Update" - Expert


General Practitioner Meeting, Lucerne, Switzerland
"The Foot – an Approach"

Rheuma 2004, Klinik St. Anna,
Lucerne, Switzerland
"Surgical Treatment in Shoulder Pain"

Rheuma League Lucerne, Kantonsspital Lucerne, Switzerland
 "Der Knick-Senk-Fuss - ein haeufiges rheumatologisches Fussproblem"


European League against Rheuma EULAR, Stockholm, Sweden
"Is there still a Place for open Synovectomy?"

Congress of German Orthopaedic Society, Berlin, Germany
"Operative Behandlungsmethoden bei Impingement nach Tuberculum majus-Frakturen"


Congress of the Swiss Society for Orthopaedic and Traumatology (SGO), Lugano, Switzerland
"Surgical Treatment for Impingement after Tuberculum majus-Fractures"

Swiss Foot and Ankle Society SFAS, Lugano, Switzerland
"Morton Neuroma - Experience with the plantar approach"


Symposium of the Schulthess-Clinic, Switzerland
„Treatment Options for Bunionette Deformity“

7th Congress of the International Federation of Societies for Surgery of the Hand, Vancouver, Canada
„Treatment Options for distal radio-ulnar Joint Arthrosis“


1. Surgical Skills Course of the Forefoot, Oberdorf, Switzerland
„Treatment Options for Bunionette Deformity“


7th Congress of the European Society of Sports Traumatology, Knee Surgery and Arthroscopy, Budapest, Hungary
„Improperly placed anterior cruciate Ligament Grafts: Correlation between radiological Parameters and clinical Results“

Congress of the Swiss Society for Orthopaedics and Traumatology (SGO),
Berne, Switzerland
„Inkorrekt plazierte vordere Kreuzbandimplantate: Korrelation zwischen radiologischen Parametern und klinischen Resultaten“

2nd Basel International Knee Congress and Instructional Course,
Basle, Switzerland
„Analysis of failed ACL reconstructions“

French Arthroscopy Association, Paris, France
„Placement incorrect des ligaments croisés antérieurs: corrélation des mesures" radiologiques et des résultats cliniques“


The Second Congress of the European Society of Foot and Ankle Surgeons, Davos, Switzerland
„The Moment Arms of the extrinsic Muscles about the Foot“
„Influence of Ankle Ligaments on tibial Rotation“

EFORT-Kongress, Speciality Day „Foot and Ankle“, München, Germany
„Influence of Ankle Ligaments on tibial Rotation: an in vitro study“

Orthopaedic Surgeons of Basle Switzerland
„Biomechanics of cruciate Ligaments“


International Scientific Symposium on Orienteering, Magglingen, Switzerland
 „Einfluss der Sprunggelenksbaender auf die Tibiarotation“

Congress of Swiss Society of Sports Medicine, La Chaux-de-Fonds, Switzerland
„Influence of Ankle Ligaments on tibial Rotation”