Abstract：
UNASSIGNED: The Linburg-Comstock (LC) anomaly is a common tendinous connection between the flexor pollicis longus and flexor digitorum profundus (FDP), most frequently to the FDP of the index finger. The purpose of this study was to obtain epidemiologic data on the LC anomaly in a healthy, ethnically diverse population and to study the effect of the LC anomaly on grip strength, tip pinch strength, key pinch strength, and chuck pinch strength.
UNASSIGNED: We examined 500 healthy subjects (292 females and 208 males) bilaterally for the presence of the LC anomaly. Each subject had their grip strength, tip pinch strength, key pinch strength, and chuck pinch strength measured bilaterally using a dynamometer for grip strength and a pinch meter for all pinch strength measurements.
UNASSIGNED: The LC anomaly was present in 213 of the 500 subjects (43%). One hundred one subjects (47%) had a unilateral presentation, and 112 (53%) subjects had a bilateral presentation. The LC anomaly was associated with a weaker tip pinch strength. When examining the LC anomaly among different ethnic groups, the highest prevalence was found in the Hispanic (57%) population followed by Caucasian (50%), Asian (41%), and African American (31%) populations.
UNASSIGNED: The LC anomaly has different prevalence according to ethnicity, with a higher prevalence in the Hispanic and Caucasian populations and a lower overall prevalence in the African American populations. The LC anomaly can also result in weaker tip pinch strength.
UNASSIGNED: We examined 500 healthy subjects (292 females and 208 males) bilaterally for the presence of the LC anomaly. Each subject had their grip strength, tip pinch strength, key pinch strength, and chuck pinch strength measured bilaterally using a dynamometer for grip strength and a pinch meter for all pinch strength measurements.
UNASSIGNED: The LC anomaly was present in 213 of the 500 subjects (43%). One hundred one subjects (47%) had a unilateral presentation, and 112 (53%) subjects had a bilateral presentation. The LC anomaly was associated with a weaker tip pinch strength. When examining the LC anomaly among different ethnic groups, the highest prevalence was found in the Hispanic (57%) population followed by Caucasian (50%), Asian (41%), and African American (31%) populations.
UNASSIGNED: The LC anomaly has different prevalence according to ethnicity, with a higher prevalence in the Hispanic and Caucasian populations and a lower overall prevalence in the African American populations. The LC anomaly can also result in weaker tip pinch strength.
摘要：
■林堡-康斯托克（LC）异常是长屈肌和足底屈肌（FDP）之间的常见肌腱连接，最常见的是食指的FDP。这项研究的目的是获得健康人群中LC异常的流行病学数据，种族不同的人群，并研究LC异常对握力的影响，尖端夹紧强度,按键夹紧强度,和夹头夹紧强度。
■我们检查了500名健康受试者（292名女性和208名男性）的双侧LC异常的存在。每个受试者都有自己的握力，尖端夹紧强度,按键夹紧强度,和夹头夹紧强度的两侧测量使用测力计的抓地力和夹紧计的所有夹紧强度测量。
■在500名受试者中的213名（43％）存在LC异常。一百一十一名受试者（47％）有单方面的陈述，112名(53%)受试者有双侧表现。LC异常与较弱的尖端捏合强度有关。在检查不同种族之间的LC异常时，患病率最高的是西班牙裔（57％），其次是高加索人（50％），亚洲（41%），非洲裔美国人（31%）。
■LC异常的患病率因种族而异，在西班牙裔和高加索人群中患病率较高，在非裔美国人人群中总体患病率较低。LC异常还可导致较弱的尖端夹紧强度。
■我们检查了500名健康受试者（292名女性和208名男性）的双侧LC异常的存在。每个受试者都有自己的握力，尖端夹紧强度,按键夹紧强度,和夹头夹紧强度的两侧测量使用测力计的抓地力和夹紧计的所有夹紧强度测量。
■在500名受试者中的213名（43％）存在LC异常。一百一十一名受试者（47％）有单方面的陈述，112名(53%)受试者有双侧表现。LC异常与较弱的尖端捏合强度有关。在检查不同种族之间的LC异常时，患病率最高的是西班牙裔（57％），其次是高加索人（50％），亚洲（41%），非洲裔美国人（31%）。
■LC异常的患病率因种族而异，在西班牙裔和高加索人群中患病率较高，在非裔美国人人群中总体患病率较低。LC异常还可导致较弱的尖端夹紧强度。
