Department of Orthopaedics and Traumatology, Meram Faculty of Medicine, Necmettin Erbakan University, Konya, Turkiye.
Department of Orthopaedics and Traumatology, Meram State Hospital, Konya, Turkiye.
J Coll Physicians Surg Pak. 2024 May;34(5):600-603. doi: 10.29271/jcpsp.2024.05.600.
To investigate whether there is a relationship between the 2nd finger and 4th finger length measurement ratios and developmental dysplasia of the Hip (DDH).
Cross-sectional observational study. Place and Duration of the Study: Department of Orthopaedics and Traumatology, Meram Faculty of Medicine Hospital, Konya, Turkiye, from January 2020 to May 2023.
Infants were screened for DDH with Graff method for the ultrasounds of both hips. Lengths of the 2nd and 4th fingers of both hands were measured and recorded. Patients with additional risk factors for developmental dysplasia of the hip (breech birth, family history, oligohydramnios, swaddling) were excluded.
Two hundred and fifty-six babies were screened including 55.1% (n = 141) girls and 44.9% (n = 115) boys. Their mean age was 2.51 ± 0.80 months. The average lengths were 31.73 ± 3.05 mm, for the left 2nd finger and 34.26 ± 3.48 mm for the left 4th finger. In the hip USG measurements, the mean alpha angles were 62.91 ± 3.12° for the right hip and, 63.20 ± 3.55° for the left hip. Eighteen (7%) of babies who underwent hip ultrasound (USG) had unilateral or bilateral DDH. Among these cases, 2.7% (n = 7) had right, 2.3% (n = 6) had left, and 2% (n = 5) had bilateral DDH. There was no statistically significant correlation between the ratios of right 2/4 finger lengths and the right alpha angle (rs = 0.051; p = 0.421). There was a statistically positive and statistically significant correlation between the ratios of left 2/4 finger lengths and the left alpha angle (rs = 0.154; p = 0.013).
Only the left-hand finger ratio among the parameters in the model had a statistically significant effect on DDH. Therefore, the left hand 2D/4D finger length may be of value in screening for DDH.
Developmental dysplasia of the hip, Second to fourth finger digit ratio, Ring finger, Digit ratios.
研究第 2 指和第 4 指长度测量比值与发育性髋关节发育不良（DDH）之间是否存在关系。
横断面观察性研究。研究地点和时间：土耳其科尼亚默拉姆医学院骨科和创伤科，2020 年 1 月至 2023 年 5 月。
对双侧髋关节进行超声检查，采用 Graff 法筛查 DDH。测量并记录双手第 2 指和第 4 指的长度。排除髋关节发育不良的其他危险因素（臀位分娩、家族史、羊水过少、襁褓）的患者。
共筛查 256 例婴儿，其中女孩占 55.1%（n=141），男孩占 44.9%（n=115）。他们的平均年龄为 2.51±0.80 个月。左手第 2 指平均长度为 31.73±3.05mm，左手第 4 指平均长度为 34.26±3.48mm。在髋关节超声测量中，右侧髋关节的平均阿尔法角为 62.91±3.12°，左侧髋关节的平均阿尔法角为 63.20±3.55°。18 例（7%）接受髋关节超声（USG）检查的婴儿单侧或双侧发育性髋关节发育不良。这些病例中，右侧 2.7%（n=7），左侧 2.3%（n=6），双侧 2%（n=5）。右侧第 2/4 指长度比值与右侧阿尔法角之间无统计学显著相关性（rs=0.051；p=0.421）。左侧第 2/4 指长度比值与左侧阿尔法角之间存在统计学正相关和统计学显著相关性（rs=0.154；p=0.013）。
在该模型的参数中，只有左手手指比值对 DDH 有统计学显著影响。因此，左手 2D/4D 手指长度可能对 DDH 的筛查有价值。
发育性髋关节发育不良，第 2 至第 4 指比率，环指，指比率。
