Student, University Lund. Doctor of Philosophy, University Lund, 1973.
With Balgrist Orthopedic Clinic, Zurich, Switzerland. Professor orthopaedics University Lund, 1987, university chair in orthopaedics, head department, 1990. Director National Board Health and Welfare, Orthopedic Competence Center.
Initiator Bone and Joint Decade Consensus Meeting, Lund, 1998, chairman international steering committee.
Member of World Health Organization Collaborating Center for Evidence-Based Health Care in Musculoskeletal Disorders (chairman), Swedish National Competence Center for Musculoskeletal Disorders, Nordic Orthopaedic Society (spokesman for biomaterials), Swedish National Knee Register (chairman).
Married May Lidgren, February 3, 1968. Children: Helena, Alexander.