DeFroda Steven F, Patel Devan D, Milner John D, Yang Daniel S, Owens Brett D
Department of Orthopaedics, Missouri Orthopaedic Institute, Columbia, Missouri, USA.
Department of Orthopaedic Surgery, Brown University, Warren Alpert School of Medicine, Providence, Rhode Island, USA.
Orthop J Sports Med. 2022 Mar 14;10(3):23259671221083661. doi: 10.1177/23259671221083661. eCollection 2022 Mar.
Concussions have received national attention in collision sports such as football, soccer, and hockey, but less focus has been placed on basketball.
To determine return-to-play (RTP) and player performance in the first and second season after concussion in National Basketball Association (NBA) players.
Descriptive epidemiology study.
An online database of publicly available NBA athlete injuries was queried for instances of "concussion" between 2010 and 2018. The age at injury, team, position, height, weight, body mass index, NBA experience, date of concussion, date of return, and seasons played postconcussion was recorded for each player. Regular-season statistics (games started, games played, minutes played, and player efficiency rating [PER]) were compiled for the season before, and 2 seasons immediately after, injury. Kaplan-Meier survivorship plots were computed for athlete RTP and retirement endpoints.
A total of 81 injuries were identified from 2010 to 2018, with a rate of 2.0 concussions per 100 player-years. Overall RTP was 100% after concussion, with nearly all (88%) returning in the season of injury; 12% of players experienced a season-ending concussion. RTP averaged 37.3 days after injury, varying widely (range, 2-291 days). Compared with preinjury season (78.0%), athletes played in significantly fewer overall games in the season of injury (36.6%; < .0001), as well as 1 (69.5%; = .0229) and 2 seasons postinjury (73.2%; = .3192). PER scores were not significantly different across the study period. Each point increase in a player's preinjury PER score was associated with a 2.4% decrease in PER from the preinjury season to season of injury ( = .0016) and a 3.1% decrease from preinjury to season after injury ( = .0053). Each increasing year of age or year of experience was associated with 5% decline in PER score at 1 season after injury.
NBA players had a high RTP after concussion, with most returning in the same season as the injury. Players sustaining concussions played significantly fewer games for at least 2 seasons after injury. Performance via PER did not change across the entire cohort; however, players with higher preinjury PER, and older players were more likely to sustain a greater decline in performance after injury.
脑震荡在橄榄球、足球和曲棍球等碰撞性运动中受到了全国关注，但在篮球运动中受到的关注较少。
确定美国职业篮球联赛（NBA）球员脑震荡后第一季和第二季的复出参赛情况及球员表现。
描述性流行病学研究。
查询一个公开的NBA运动员伤病在线数据库，以获取2010年至2018年期间的“脑震荡”病例。记录每名球员的受伤年龄、球队、位置、身高、体重、体重指数、NBA经验、脑震荡日期、复出日期以及脑震荡后的参赛赛季。汇总受伤前一季以及受伤后紧接着的两个赛季的常规赛数据（首发场次、参赛场次、上场时间和球员效率值[PER]）。计算运动员复出参赛和退役终点的Kaplan-Meier生存曲线。
2010年至2018年共确定了81例伤病，每100球员年的脑震荡发生率为2.0次。脑震荡后的总体复出参赛率为100%，几乎所有球员（88%）在受伤赛季就复出；12%的球员经历了赛季结束时的脑震荡。受伤后复出参赛的平均时间为37.3天，差异很大（范围为2至291天）。与受伤前赛季（78.0%）相比，运动员在受伤赛季的总参赛场次显著减少（36.6%；P<0.0001），在受伤后1个赛季（69.5%；P = 0.0229）和2个赛季（73.2%；P = 0.3192）也是如此。在整个研究期间，PER得分没有显著差异。球员受伤前PER得分每增加1分，从受伤前赛季到受伤赛季的PER得分下降2.4%（P = 0.0016），从受伤前到受伤后赛季下降3.1%（P = 0.0053）。年龄每增加一岁或经验每增加一年，受伤后1个赛季的PER得分下降5%。
NBA球员脑震荡后的复出参赛率很高，大多数球员在受伤赛季就复出。脑震荡球员在受伤后至少两个赛季的参赛场次显著减少。整个队列中通过PER衡量的表现没有变化；然而，受伤前PER较高的球员和年龄较大的球员在受伤后表现下降的可能性更大。
