Soltani Ali M, Peric Mirna, Francis Cameron S, Nguyen Thien-Trang J, Chan Linda S, Ghiassi Alidad, Stevanovic Milan V, Wong Alex K
Division of Plastic Surgery, Department of Surgery, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA.
Plast Surg Int. 2012;2012:282959. doi: 10.1155/2012/282959. Epub 2012 Oct 31.
The absence of the palmaris longus (PL) has been shown to vary based on body side, gender, and ethnicity. In prior studies, homogenous ethnic populations have been shown to have differences in rates of absence. However, no study thus far has analyzed the differences in palmaris longus prevalence in a multiethnic population. We prospectively collected data on 516 patients visiting the outpatient hand clinics at LAC+USC Medical Center and Keck Medical Center. Analysis of the data was then performed for variables including ethnicity, laterality, and gender. There were no differences in the absence of the PL based on laterality or gender. Ethnically, there was no difference between white (non-Hispanic) and white (Hispanic) patients, with prevalence of 14.9% and 13.1%, respectively. However, African American (4.5%) and Asian (2.9%) patients had significantly fewer absences of the PL than the Caucasian, Hispanic reference group (P = 0.005 and P = 0.008, resp.). African Americans and Asians have a decreased prevalence of an absent PL. The Caucasian population has a relatively greater prevalence of an absence of the PL. This epidemiological study demonstrates the anatomic variation in this tendon and may be taken into account when planning an operation using tendon grafts.
掌长肌缺失情况已被证明会因身体部位、性别和种族而有所不同。在先前的研究中，已表明同质种族人群在缺失率方面存在差异。然而，迄今为止，尚无研究分析多民族人群中掌长肌患病率的差异。我们前瞻性地收集了洛杉矶县+南加州大学医学中心和凯克医学中心门诊手部诊所516例患者的数据。然后对包括种族、左右侧和性别在内的变量进行数据分析。掌长肌缺失情况在左右侧或性别方面没有差异。在种族方面，非西班牙裔白人患者和西班牙裔白人患者之间没有差异，患病率分别为14.9%和13.1%。然而，非裔美国人（4.5%）和亚洲人（2.9%）患者掌长肌缺失的情况明显少于作为参照组的白种人、西班牙裔患者（分别为P = 0.005和P = 0.008）。非裔美国人和亚洲人掌长肌缺失的患病率较低。白种人群中掌长肌缺失的患病率相对较高。这项流行病学研究证明了该肌腱的解剖变异，在计划使用肌腱移植物进行手术时可能需要考虑这一点。
