Division of Sports Medicine, Department of Orthopedic Surgery, Scripps Clinic, La Jolla, California, USA.
Major League Baseball, New York, New York, USA.
Am J Sports Med. 2020 Mar;48(3):581-587. doi: 10.1177/0363546519898194. Epub 2020 Jan 28.
The effect that an anterior cruciate ligament injury requiring reconstructive surgery has on the professional advancement and performance of amateur baseball players selected in the Major League Baseball draft is not known. Return to sports after anterior cruciate ligament reconstruction (ACLR) in professional athletes has been shown to be high, but mixed results with regard to performance and return to preinjury level have been demonstrated in other sports.
To (1) investigate the highest level of professional advancement among Major League Baseball draftees with a history of ACLR before entering the draft, (2) examine how much time these players spent on the disabled list (DL) and determine if it was related to the knee, and (3) compare the batting and pitching performance of these players against healthy matched controls.
Cohort study; Level of evidence, 3.
Predraft medical records of all players selected in the Major League Baseball draft from 2004 to 2008 were reviewed. Players with a documented anterior cruciate ligament injury treated with ACLR before the draft were included. For each study player, 3 controls were identified. Data were accumulated from the time when players were drafted through the 2015 season. Outcome variables included highest professional level of advancement, DL time, and batting and pitching performance.
Forty draftees with a history of ACLR (22 pitchers, 18 position players) were identified and matched to 120 controls (66 pitchers, 54 position players). The difference in the highest level of professional advancement between the groups was not statistically significant ( = .488). The mean total number of times and the mean total number of days on the DL were similar between the groups (1.83 vs 1.47, = .297; 121.54 vs 109.62, = .955); however, the mean number of times on the DL because of a knee injury was significantly different (0.28 vs 0.11, = .004), as was the mean number of days on the DL because of a knee injury (17.36 vs 7.72, = .009). Among pitchers, there were no differences in performance. Similarly, there were no differences among position players in batting performance.
There was no difference between draftees with a history of ACLR and their controls in terms of advancement from the minor to the major leagues. Additionally, pitching and batting performance were similar. Although the 2 groups spent similar time on the DL, the ACLR group spent more time on the DL because of a knee injury than the control group.
需要进行前交叉韧带重建手术的前交叉韧带损伤对入选美国职棒大联盟选秀的业余棒球运动员的职业发展和表现有何影响尚不清楚。前交叉韧带重建（ACLR）后职业运动员重返运动的比例很高，但在其他运动中，表现和恢复到受伤前水平的结果却不尽相同。
（1）调查在参加选秀前ACL 重建史的美国职棒大联盟选秀中ACL 重建史的球员中，职业发展的最高水平；（2）研究这些球员在伤病名单（DL）上花费的时间，并确定这是否与膝盖有关；（3）比较这些球员与健康匹配对照的击球和投球表现。
队列研究；证据水平，3 级。
回顾了 2004 年至 2008 年所有入选美国职棒大联盟选秀的球员的选秀前医疗记录。入选研究的球员均为前交叉韧带损伤，经 ACLR 治疗后接受了手术。每位研究球员均确定了 3 名对照。数据从球员被选中开始积累，直至 2015 赛季。结果变量包括职业发展的最高水平、DL 时间以及击球和投球表现。
确定了 40 名有 ACLR 病史的选秀球员（22 名投手，18 名外野手），并与 120 名对照（66 名投手，54 名外野手）相匹配。两组之间最高职业发展水平的差异无统计学意义（=.488）。两组的 DL 总次数和 DL 总天数相似（1.83 次比 1.47 次，=.297；121.54 天比 109.62 天，=.955）；然而，因膝盖受伤而 DL 的次数和因膝盖受伤而 DL 的天数有显著差异（0.28 次比 0.11 次，=.004），因膝盖受伤而 DL 的天数也有显著差异（17.36 天比 7.72 天，=.009）。在投手中，表现没有差异。同样，在外野手中，击球表现也没有差异。
ACL 重建史的选秀球员与对照组相比，在从小联盟晋升到大联盟方面没有差异。此外，投球和击球表现相似。尽管两组在 DL 上花费的时间相似，但 ACLR 组因膝盖受伤而在 DL 上花费的时间多于对照组。
