Carey James L, Huffman G Russell, Parekh Selene G, Sennett Brian J
Department of Orthopaedic Surgery, University of Pennsylvania School of Medicine, Philadelphia, Pennsylvania, USA.
Am J Sports Med. 2006 Dec;34(12):1911-7. doi: 10.1177/0363546506290186. Epub 2006 Jul 26.
Anterior cruciate ligament injuries are common in professional football players, and their career impact is unclear.
To quantify the affect of anterior cruciate ligament injuries on professional football player performance.
Cohort study (prognosis); Level of evidence, 2.
Anterior cruciate ligament injury data from the National Football League were collected during a 5-year period (1998-2002) for running backs and wide receivers. Recorded variables included player age, experience, position, time to return to competition, and yearly total yards and touchdowns. Power ratings (total yards divided by 10 plus touchdowns multiplied by 6) were calculated for the injury season as well as for the 3 seasons before and after injury. A control group consisted of all running backs and wide receivers without an identified anterior cruciate ligament injury who competed in the 2000 season.
Data were analyzed for 31 running backs and wide receivers with 33 anterior cruciate ligament injuries. More than one fifth of players never returned to a National Football League game. Returning players first competed in a game 55.8 +/- 5.4 weeks (mean +/- standard error) after injury. For the 24 anterior cruciate ligament-injured players with a minimum total power rating (sum of all 7 seasons) of 200 points, power rating per game played decreased from 9.9 +/- 1.1 preinjury to 6.5 +/- 0.9 postinjury. This decline in power rating per game played was statistically significant (P = .002) when compared with the change for the 146 control players.
Nearly four fifths of National Football League running backs and wide receivers who sustain an anterior cruciate ligament injury return to play in a game. On return to competition, player performance of injured players is reduced by one third.
前交叉韧带损伤在职业足球运动员中很常见，但其对职业生涯的影响尚不清楚。
量化前交叉韧带损伤对职业足球运动员表现的影响。
队列研究（预后）；证据等级，2级。
收集美国国家橄榄球联盟在5年期间（1998 - 2002年）跑卫和外接手的前交叉韧带损伤数据。记录的变量包括球员年龄、经验、位置、重返比赛的时间以及每年的总码数和达阵数。计算受伤赛季以及受伤前和受伤后的3个赛季的功率评级（总码数除以10加上达阵数乘以6）。对照组由2000赛季所有未确诊前交叉韧带损伤的跑卫和外接手组成。
对31名跑卫和外接手的33例前交叉韧带损伤数据进行了分析。超过五分之一的球员从未重返美国国家橄榄球联盟比赛。重返赛场的球员在受伤后55.8 +/- 5.4周（均值 +/- 标准误）首次参加比赛。对于24名前交叉韧带损伤且最低总功率评级（所有7个赛季总和）为200分的球员，每场比赛功率评级从受伤前的9.9 +/- 1.1降至受伤后的6.5 +/- 0.9。与146名对照球员的变化相比，每场比赛功率评级的这种下降具有统计学意义（P = .002）。
近五分之四的美国国家橄榄球联盟跑卫和外接手前交叉韧带损伤后会重返赛场比赛。重返比赛时，受伤球员的表现降低了三分之一。
