Specialties include: Orthopaedic surgery, Osteoarthritis, Sports medicine Sports injury Knee Surgery Foot Surgery Arthroscopy/Minimal Invasive Surgery (MIS)
Special clinical interests: Sports, foot/ankle and knee pathologies
Research interests: Articular cartilage mapping and repair as well as biomechanics of the lower limb.
Mr Ballester is a Member of the examiners panel of the intercollegiate speciality examination in trauma & orthopaedic surgery.
Mr Ballester is also Clinical Director at St Helens and Knowsley Teaching Hospitals NHS Trust and practices as a Consultant Orthopaedic Surgeon – St Helens and Knowsley Teaching Hospitals NHS Trust. He is also a member of the Medical Advisory Committee of Fairfield Independent Hospital.
He is Honorary Senior Lecturer University of Liverpool and Member of St Helens Orthopaedic Medical Group (SHOG).
Year of first medical qualification: 1992
Current membership(s) of professional, national and regional bodies include : Royal College of Surgeons, Edinburgh,British Orthopaedic Association
British Association of Surgery of the Knee (BASK), British Orthopaedic Foot and Ankle Society (BOFAS), Mersey Foot and Ankle Society.