Chen Jing, Xian Zhang Ai, Jia Qian Si, Jing Wang Yu
Department of Hand Surgery, Affiliated Hospital of Nantong University, Jiangsu, China.
Department of General practice, Affiliated Hospital of Nantong University, Jiangsu, China.
J Hand Surg Eur Vol. 2021 Oct;46(8):825-829. doi: 10.1177/1753193421991062. Epub 2021 Feb 8.
The purpose of our study was to determine whether smartphone photography is as reliable and valid as clinical goniometry for measuring interphalangeal joint range of motion. We conducted a retrospective review of 37 fingers in 33 patients after flexor tendon repair. The measurements on photographs taken with a smartphone by a surgeon were compared with manual measurements with goniometry by the same surgeon. Pearson coefficients and interclass correlation coefficients were all above 0.85, and Bland-Altman analysis demonstrated that at least 35 of 37 measurements were within the 95% confidence interval in all variables. According to the Tang criteria, the total number of excellent and good results were equivalent according to both methods. There was high interobserver reliability between measurements by surgeons and a therapist. We conclude that if the pictures are properly taken, the measurement of the angles in the smartphone pictures are as reliable as measuring the angles with goniometry and that grading of the results according to the two methods gives identical results.
我们研究的目的是确定智能手机摄影在测量指间关节活动范围方面是否与临床测角法一样可靠和有效。我们对33例患者屈指肌腱修复术后的37根手指进行了回顾性研究。外科医生用智能手机拍摄的照片测量结果与同一位外科医生用测角仪进行的手动测量结果进行了比较。皮尔逊系数和组内相关系数均高于0.85，布兰德-奥特曼分析表明，在所有变量中，37项测量中至少有35项在95%置信区间内。根据唐氏标准，两种方法的优良结果总数相当。外科医生和治疗师的测量结果之间具有较高的观察者间可靠性。我们得出结论，如果照片拍摄得当，智能手机照片中的角度测量与用测角仪测量角度一样可靠，并且根据这两种方法对结果进行分级会得到相同的结果。
