Kerlan-Jobe Orthopaedic Clinic, 6801 Park Terrace, Los Angeles, CA 90045, USA.
Am J Sports Med. 2012 Mar;40(3):589-94. doi: 10.1177/0363546511428601. Epub 2011 Nov 30.
The current incidence and outcomes of meniscal injury have not been quantified in professional athletes.
To describe the incidence, risk, amount of time lost, and effect on performance for isolated meniscal injury in athletes from the National Basketball Association (NBA). Demographic factors predicting the risk of meniscal tears and the effect of injury in return to play were also investigated.
Descriptive epidemiology study.
A centralized database was queried to identify meniscal injuries occurring in the NBA over 21 seasons. The frequency of injury, time lost, game exposures, and incidence, rate, and risk were calculated. The preinjury and postinjury player efficiency rating (PER) was used to identify changes in player performance.
We identified 129 isolated meniscal tears in NBA athletes during a 21-season span. From this number, 77 (59.7%) involved the lateral meniscus and 52 (40.3%) the medial meniscus. Injuries occurred more frequently in games. The lateral meniscus had a statistically significant higher injury rate. Both left and right knees were equally affected. The number of days missed for lateral meniscal tears and medial meniscal tears was 43.8 ± 35.7 days and 40.9 ± 29.7 days, respectively, and was not statistically different. There was a significant inverse relationship between age and rate of lateral meniscal tears, with lateral meniscal tears more likely to occur up to age 30 years; beyond that medial meniscal tears were more common. Players with a body mass index (BMI) greater than 25 had a significantly increased risk of meniscal tears compared with players with a BMI less than 25, specifically with an increased risk of lateral meniscal tears. Twenty-five players (19.4%) did not return to play. For those who did, upon returning to competition, there was no statistical change in PER from their preinjury status, and the mean number of seasons completed was 4.1 ± 3.7 seasons.
The lateral meniscus is more frequently torn than the medial meniscus, but there was no difference in the amount of playing time lost. Both right and left knees were equally affected. There was an inverse relationship between age and the rate of lateral meniscal tears. Risk of tears was increased in players having a BMI greater than 25. Injury did not negatively affect playing performance.
目前尚未对职业运动员的半月板损伤发病率和结局进行量化。
描述美国职业篮球联赛（NBA）运动员中孤立性半月板损伤的发病率、风险、损失时间和对表现的影响。还调查了预测半月板撕裂风险的人口统计学因素以及伤后重返赛场的影响。
描述性流行病学研究。
通过集中数据库查询确定 NBA 21 个赛季中的半月板损伤。计算损伤的频率、损失的时间、比赛曝光率以及发病率、发生率和风险。使用受伤前和受伤后的球员效率评分（PER）来确定球员表现的变化。
在 21 个赛季的跨度内，我们确定了 NBA 运动员中有 129 例孤立性半月板撕裂。其中 77 例（59.7%）涉及外侧半月板，52 例（40.3%）涉及内侧半月板。损伤更频繁地发生在比赛中。外侧半月板的损伤发生率明显更高。左膝和右膝同样受到影响。外侧半月板撕裂和内侧半月板撕裂的平均缺阵天数分别为 43.8 ± 35.7 天和 40.9 ± 29.7 天，无统计学差异。外侧半月板撕裂的发病率与年龄呈显著负相关，30 岁以下的发病率更高；30 岁以上，内侧半月板撕裂更常见。体重指数（BMI）大于 25 的运动员与 BMI 小于 25 的运动员相比，半月板撕裂的风险显著增加，特别是外侧半月板撕裂的风险增加。25 名运动员（19.4%）未重返赛场。对于那些重返赛场的运动员，他们在重返比赛后的 PER 与受伤前相比没有统计学上的变化，平均完成的赛季数为 4.1 ± 3.7 个赛季。
外侧半月板比内侧半月板更容易撕裂，但损失的比赛时间没有差异。左右膝关节同样受到影响。半月板外侧撕裂的发生率与年龄呈负相关。BMI 大于 25 的运动员撕裂风险增加。受伤并未对表现产生负面影响。
