He belongs to the AO spine teaching faculty (International, European and United Kingdom) and influential AO Expert Group for Lumbar Degenerative Disorders. More recently he is a founding member of an IGASS (International Group for the Advancement of Spinal Science) that was formed in conjunction with other pioneering European Spinal Surgeons. The group will act as key opinion leaders on the future of spinal surgery with direct links to the US study groups. He is the director of Guy’s and St Thomas’ AO Spinal Reference Centre and his centre is a dedicated global reference centre for all spinal surgery, especially minimal invasive/access, anterior access spinal surgery, disc replacements. He is also on the editorial board of the European Spine Journal and Spine.