New knee ligament discovered

by Anonymous on Nov. 06th, 2013

The human knee: a new ligament has been discovered in the leg joint.
The human knee: a new ligament has been discovered in the leg joint.Courtesy Andrew Scott
You'd think by now - after centuries of studying it - that we'd know everything there is to know about the human body. But this week surgeons at University Hospital Leuven in Belgium announced the discovery of a new ligament in the knee. Called the anterolateral ligament (ALL) the newly discovered body part attaches between the lower end of the femur and the head of the tibia, reinforcing the connection between the two bones. The unknown ligament came to light as the doctors investigated the causes of difficulties patients suffered during rehabilitation from ACL tears, a common injury among some athletes.

Interestingly, it was a paper written by a French surgeon in the 19th century that led the doctors to the ligament. The author of an 1879 paper postulated the ALL's existence but it took until now for it to be actually located. The two doctors who discovered it say the ligament exists in about 97 percent of all patients.

SOURCES and LINKS
Journal of Anatomy paper
ScienceDaily story

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