Professor Frosch (Karl-Heinz Frosch) is Director of the Department of Trauma and Orthopaedic Surgery, Chair of Trauma Surgery, at the University Medical Center Hamburg-Eppendorf and Medical Director of the BG Hospital Hamburg, Chief of the Department of Trauma Surgery, Orthopaedics and Sports Traumatology, in Hamburg Bergedorf, Germany.

His extensive research contributions encompass areas such as knee dislocations, fractures around the knee, complex ligament injuries around the knee, arthroscopic techniques of anatomic posterolateral corner stabilization, osteotomies around the knee.
He has been recognized as a leading practitioner in knee surgery and trauma surgery.