Core competencies

Traumatology (Trauma Surgery)

  • Management of simple and complex bone fracture, as well as ligamentary injuries of the upper and lower extremities

Knee Surgery

Sports Traumatology

  • Arthroscopic / minimally invasive treatment of meniscus injuries (partial removal, suture and transplantation)

Personalized treatments of cruciate ligament injuries (anterior and posterior cruciate ligament)

  • Techniques for cruciate ligament preservation (Ligamys, Internal Bracing)

  • Cruciate ligament reconstruction with one’s own tendon or a donor tendon

  • Revision surgery following cruciate ligament reconstruction with a renewed rupture and various ligamentous lesions

  • Treatment of knee joint dislocations (multiple ligament ruptures)

  • Cartilage repair and transplantation procedure (Certified for cartilage cell transplantation) 

Patellar Instability (Comprehensive analysis of existing problems and personalized therapy)

  • Ligament reconstructions

  • Adjustments of bone axis deviations

  • Knee trochlea modelling (Trochleoplasty)

  • Combined interventions 

Joint-preserving axial adjustment

  • Bone axis adjustments of lower leg and thigh

Fast track procedure for knee endoprosthesis (Awarded as “Center of Excellence”)


All endoprosthetic procedure are minimally invasive and soft-tissue friendly. Amongst other things, CT and MRI-based, personalized, patient-specific instruments and implants are used.

  • Unicompartmental partial-prosthesis, half-knee replacement

  • Retropatellar partial-prosthesis, Patellar-Trochlear replacement

  • Total knee prosthesis, surface replacement of knee joint

Revision endoprosthetics

  • Special consultation on „painful knee prosthesis“ with comprehensive analysis of the problem

  • Simple and complex prosthesis replacement surgery for any reason (loosening, wear, misalignment, malfunction)

  • Treatment of prosthesis infections

  • tumor endoprostheses

Hip Joint

  • Fast track procedure for hip endoprosthesis.

  • Partial and total prosthesis of the hip

  • All endoprosthetic operations are, to the extent possible, minimally invasive and soft-tissue friendly.

  • Arthroscopic, minimally invasive and open treatment of a femoroacetabular impingement.

Professional career

Venia docendi, associate Professor for orthopedic surgery and traumatology, Bern University
Jan 2008
Medical Consultant (Senior Consultant) for complex and difficult procedures, especially knee surgery, University Clinic for Orthopedic Surgery and Traumatology, Insel Hospital Bern (Prof. Dr. K.A. Siebenrock)
Oct 2017 - to date
Attending doctor, Hirslanden Trauma Center, Hirslanden Clinic, Zurich
Oct 2017 - to date
Attending doctor, Permanence Clinic, Hirslanden, Bern
2012 - 2017
Head of department of knee surgery and sports traumatology, University clinic for orthopedic surgery and traumatology, Inselspital, Bern (Prof. Dr. K.A. Siebenrock)

Schools, university & degrees and diplomas

FMH specialist examination for orthopedic surgery and traumatology of musculoskeletal system
Final state exam Human Medicine
2000 - 2002
Elective years
Year of 2000 ATOS clinic Heidelberg (Prof. P. Habermeyer)
Year of 2000 Orthopaedic clinic Markgröningen (Prof. Immenkamp)
Year of 2001 (Medicine) St. Hedwig Clinics Berlin, Germany
Years 2001-2002 University clinic for orthopedic surgery and traumatology, Inselspital, Bern (Prof. R. Ganz)
1998 - 2002
Medical studies, Humboldt-Universität of Berlin, Germany
Clinical elective: Charité - University Clinc Berlin, Orthopedic Clinic (Prof. H. Zippel)

Further information


  • Award 2017: Certificate “Center of Excellence”, Corin GSA GmbH, Saarbrücken, May, 2017, Kohl Sandro
  • Special issue infection 2016: Knee Surgery Sports Traumatology (KSSTA) October 2016, Guest editors: Sandro Kohl
  • Trainingscenter for ESSKA- EKA Traveling Fellowship 2016
  • AFOR Prize 2016: Single Molecule Microscopy Reveals an Increased Hyaluronan Diffusion Rate in Synovial Fluid from Knees Affected by Osteoarthritis. Kohlhof H, Gravius S, Kohl S, Ahmad SS, Randau T, Schmolders J, Rommelspacher Y, Friedrich M, Kaminski TP, Sci Rep. 2016 Feb 12;6:21616. doi: 10.1038/srep21616
  • Price of Innovation by German Society of Orthopedics and Trauma Surgery 2011: „Dynamic Intraligamentary Stabilization (DIS): a novel technique for preserving the ruptured anterior cruciate ligament“, Eggli S, Kohlhof H, Zumstein M, Henle P, Hartel M, Evangelopoulos DS, Bonel H, Kohl S

Memberships and partnerships

  • Swiss Orthopedic Society (SGO); Member of the Knee expert commission
  • Swiss Medical Board (SMB); Specialized Expert
  • European Knee Associates (EKA)
  • Swiss Medical Society (FMH)
  • Society of Orthopedic and Traumatological Sports Medicine (GOTS)
  • European Society for Sports Traumatology, Knee Surgery and Arthroscopy (ESSKA)
  • Working Society Osteosynthesis
  • Society of Arthroscopy and Joint sugery (AGA)
  • Medical District Association of Bernregio
  • Medical Association of Canton Bern
  • Medical Association of Canton Zurich

Publications & videos

Events & lectures