High reproducibility of a novel supported anterior drawer test for diagnosing ankle instability

BMC Musculoskeletal Disorders

Research

Yohei Okada¹  Katsunori Takahashi¹  Shinichiro Okimura¹  Yasutaka Murahashi¹  Atsushi Teramoto¹  Toshihiko Yamashita¹  Kota Watanabe²  Rui Imamura³  Makoto Kawai⁴ 

[1] Department of Orthopaedic Surgery, Sapporo Medical University School of Medicine, S-1, W-16, Chuo-Ku, 060-8543, Sapporo, Japan;Department of Physical Therapy, Sapporo Medical University School of Health Sciences, S-1, W-17, Chuo-Ku, 060-8556, Sapporo, Japan;Division of Radiology and Nuclear Medicine, Sapporo Medical University Hospital, S-1, W-16, Chuo-Ku, 060-8543, Sapporo, Japan;Division of Rehabilitation, Sapporo Medical University Hospital, S-1, W-16, Chuo-Ku, 060-8543, Sapporo, Japan;

关键词: Ankle sprains;    Ankle instability;    Anterior talofibular ligament;    Anterior drawer test;    Capacitance-type sensor device;   

DOI  :  10.1186/s12891-023-06246-8

 received in 2022-08-17, accepted in 2023-02-15,  发布年份 2023

来源: Springer

【 摘 要 】

BackgroundThe manual traditional anterior drawer test (ADT) is essential for deciding the treatment for chronic ankle instability, but it has been shown to have a comparatively low reproducibility and accuracy, especially in less experienced hands. To clarify the inter-examiner reproducibility, we compared the actual distance of anterior translation between junior and senior examiners in ADT. We also evaluated the diagnostic abilities of traditional ADT, and a novel modified ADT (supported ADT).MethodsThirty ankles were included in this study, and ankle instability was defined using stress radiography. All subjects underwent two methods of manual ADT by junior and senior examiners, and ankle instability was judged in a blinded fashion. The anterior drawer distance was calculated from the lengthening measured using a capacitance-type sensor device.ResultsThe degree of anterior translation determined by the junior examiner was significantly lower than that determined by the senior examiner when traditional ADT was performed (3.3 vs. 4.5 mm, P = 0.016), but there was no significant difference in anterior translation between the two examiners when supported ADT was performed (4.6 vs. 4.1 mm, P = 0.168). The inter-examiner reliability of supported ADT was higher than that of traditional ADT. For the junior examiner, the diagnostic accuracy of supported ADT was higher than that of traditional ADT (sensitivity, 0.40 vs. 0.80; specificity, 0.75 vs. 0.80).ConclusionSupported ADT may have the advantage of being a simple manual test of ankle instability with less error between examiners.

【 授权许可】

CC BY   
© Crown 2023

【 图 表 】

Fig. 4

Fig. 3

Fig. 1

Fig. 1

Fig. 2