“…Despite the multifactorial nature of ACL injury, most studies have examined isolated risk factors [179,195]. Many articles of proposed risk factors for ACL are narrative reviews [1,88,89,203], systematic reviews [5,19,92,196,197,221] or current concepts statement [180,195] that include case-control studies [38,82,91,110,123,139,144,174,204] in addition to prospectively designed studies [90,95,117,149,159,160,164,165,199,216,218,219,241,242] (Table 1). To definitively establish risk factors for ACL injury, high quality prospective studies are needed.…”