Aim: The arthroscopic þndings after a knee injury in the general population, and the inßuence of Cause of injury, Gender and Age upon Meniscal, ACL and Combined Meniscal and ACL tears is presented.

Methods: Patients (n:215) with no history of previous knee injury or surgery, no history of arthritis, and normal X-rays that underwent arthroscopy by the same surgeon. The data was analysed by an independent bio-statistitian using unconditional logistic regression analysis.

Results: Patients with Sports related injuries (62.8%) were younger than patients with Non-sporting injuries (37.2%), (p< 0.001). More men than women underwent arthroscopy in both groups. Patients in sporting group had greater odds than patients in non-sporting group to have: an ACL tear, an ACL and meniscal tear (combined), a lateral meniscal tear. Women had lower odds than men to have: a meniscal tear, a combined tear.

Conclusions: In the general population (a) more patients underwent arthroscopy after a sporting than after a non-sporting injury (b) men were more than women in both groups (c) the cause of injury was predictive for an ACL and combined meniscal and ACL tears as well as the meniscus involved (d) in both sporting and non-sporting injuries women had less odds to have a meniscal and a combined meniscal and ACL tear.