Dr MP (Rien) Heijboer, orthopedic surgeon, works at the Dept at Orthopedic at the Erasamus Medical Centre in Rotterdam. He has extensive experience with sports-related injuries and has worked for more than 30 years as medical adviser of football club Feijenoord in Rotterdam.

He is a member of the medical staff of the Dutch National Soccer Team and visited the world soccer championships in Brasil in 2014, which he describes as a "life-time experience"!
He is president of the Dutch Orthopedic Society (NOV). Their annual congress will be held on February 5th and 6th 2015 in Maastricht: http://goo.gl/gzx2BS.

He has a great interest in sports-related injuries and today Rien discusses the latest research findings on cam and hip impingement in soccer players.

Further reading
A cam deformity is gradually acquired during skeletal maturation in adolescent and young male soccer players: a prospective study with minimum 2-year follow-up:
http://ajs.sagepub.com/content/42/4/798.abstract

Pincer deformity does not lead to osteoarthritis of the hip whereas acetabular dysplasia does: acetabular coverage and development of osteoarthritis in a nationwide prospective cohort study (CHECK):
http://www.oarsijournal.com/article/S1063-4584(13)00873-X/pdf

Cam impingement causes osteoarthritis of the hip: a nationwide prospective cohort study(CHECK): http://ard.bmj.com/content/72/6/918.abstract

The development of Cam-type deformity in adolescent and young male soccer players:
http://ajs.sagepub.com/content/40/5/1099.abstract

Clinical Graphics: https://www.clinicalgraphics.com/en/professionals/supporters/