Background: Ruptureof the anterior cruciate ligament (ACL) is a common and potentially career-threatening injury in the National Football League (NFL).
背景：前交叉韧带(ACL)撕裂是国家足球联盟(nfl)中球员常见的损伤，并可能危害到其运动生涯。
2
When severe twisting of the joint occurs, the most common injury is a ruptureof the anterior cruciate ligament.
当联合严重扭曲的发生，最常见的伤害是韧带断裂的前十字。
3
Objective To introduce the surgical procedure and clinical result of microsurgical repair on collateral ligamentrupture in the interphalangeal joint using superficial flexor tendon of finger.