Doctors have discovered that an important knee ligament, first described in an 1879 paper, before being subsequently ignored for well over a century, is actually a very real and important body part.

Anterior cruciate ligament (ACL) tears are a common problem for many athletes. They are notoriously difficult to repair and the recovery is a tough and painful process that can take up to a year. Following treatment, however, many patients still complain of aches and pains and it is not at all uncommon for the joints to fail the necessary pivot-shift tests (performed so the doctors can check the success of their surgeries). Repeat injuries are also inexplicably common.

Last month, it was announced that a team of Flemish doctors appears to have finally solved this persistently vexing riddle and, in so doing, they validated a discovery made over a century ago.

Paul Segond, a 19th century French surgeon who is known for greatly aiding the development of http://www.nhscareers.nhs.uk/explore-by-career/doctors/careers-in-medicine/obstetrics-and-gynaecology/