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balanSys® UNI – Unicondylar knee system powered by Mathys

Tissue balancing technique by global competence and clinical expertise

balanSys® UNI fixed bearing

The unicondylar knee system balanSys® UNI allows the surgeon the use of a minimally invasive surgical approach. The implant design and surgical technique has been developed in consideration of the anatomical and physiological conditions of the knee. All femoral osteotomies are defined under controlled and physiological ligament tension and accomplished in consideration of the anatomically determined joint line level of the knee. This ligament oriented knee balancing is warranted by means of an unique tensor technique.


The balanSys® UNI knee system powered by Mathys Ltd Bettlach has drawn on its more than 40 years of practical experience in the field of orthopaedics, the clinical competence of renowned knee specialists from the Hospital for Special Surgery (HSS) in New York and the comprehensive biomechanical know-how of the Cornell University (Ithaka, NY, USA).


The development of balanSys® UNI knee system was supported by an international team of leading clinical advisors and authors with their extensive orthopaedic experience and competence in knee arthroplasty.

  • Prof. Dr Ulrich Bosch – Hannover, Germany
  • Dr David Campbell – Adelaide, Australia
  • Dr Bernhard Christen –Berne, Switzerland
  • Dr Frank Hoffmann – Rosenheim, Germany
  • Dr Russel F. Warren – New York, USA
  • Dr Ulrich Wehrli – Berne, Switzerland
  • Dr Thomas L. Wickiewicz – New York, USA
  • Dr Ate Wymenga – Nijmegen, Netherlands

During the development process we particularly focussed the aspects of mobility, stability, variability and quality. Thus will ensure reproducible clinical long-term results.



Impeccable clinical feedback

«The balanSys® UNI knee system`s main advantage is probably its simplicity and reliability of use. Additionally this system has a fixed bearing option which is suitable for lateral compartmental applications.»

(Dr D. Campbell)


«Postoperatively the patients have less pain, they are easy to mobilize and have a good range of motion very soon.»

(Dr med. F. Hoffmann)


«very satisfactory experiences with reliable and reproducible simple operating technique and rapid and uneventfully rehabilitation of patients.»

(Dr U. Wehrli)