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. 2021 Jan 27:11:625917.
doi: 10.3389/fneur.2020.625917. eCollection 2020.

Validity and Reliability of the Semmes-Weinstein Monofilament Test and the Thumb Localizing Test in Patients With Stroke

Mabu Suda  1   2 , Michiyuki Kawakami  1 , Kohei Okuyama  1 , Ryota Ishii  3 , Osamu Oshima  1 , Nanako Hijikata  1 , Takuya Nakamura  1 , Asako Oka  1 , Kunitsugu Kondo  2 , Meigen Liu  1
Affiliations

Validity and Reliability of the Semmes-Weinstein Monofilament Test and the Thumb Localizing Test in Patients With Stroke

Mabu Suda et al. Front Neurol. .

Abstract (VSports app下载)

Background: Somatosensory impairment is common in patients who have had a stroke and can affect their motor function and activities of daily living (ADL). Therefore, detecting and treating somatosensory impairments properly is considered to be very important, and various examinations have been developed. However, the reliability and validity of few of them have been verified due to differences in the procedure of each examiner or poor quantification by the examination itself. Objective: We hypothesized that, with fixed procedures two convenient clinical examinations, the Semmes-Weinstein Monofilament Test (SWMT) and the Thumb Localizing Test (TLT), could provide reliable assessments of light touch sensation and proprioception. The purpose of this study was to verify the reliability and validity of these two examinations as indices of somatosensory impairment of the upper extremity (UE) in patients with chronic post-stroke hemiparesis. Methods: Fifty patients with chronic stroke (median time after onset of stroke, 848 [474-1708] days, mean age 57 [standard deviation 14] years) were enrolled at Keio University Hospital from 2017 to 2018. Examiners learned the original method of the SWMT and the TLT rigorously and shared it with each other. The TLT procedure was partially modified by dividing the location of the patient's thumb into four spaces. Two examiners evaluated the SWMT and the TLT for 2 days, and intra-rater and inter-rater reliabilities were calculated using weighted kappa statistics. In addition to this, the evaluator size score of the SWMT was assessed with Bland-Altman analysis to evaluate systematic bias. The Stroke Impairment Assessment Set (SIAS) sensory items were used to assess validity, and Spearman's rank correlation coefficients were calculated. Results: Intra/inter-rater agreements of the SWMT grade score were 0. 89 (thumb, 95%CI: 0. 83-0. 95)/ 0. 75 (0. 60-0. 91) and 0. 80 (index finger, 0. 67-0. 93)/0. 79 (0. 66-0. 92), and of the TLT they were 0. 83 (navel level proximal space, 0. 71-0. 95)/ 0. 83 (0. 73-0. 92), 0. 90 (navel level distal space, 0. 85-0. 96)/ 0. 80 (0. 69-0. 90), 0. 80 (shoulder level proximal space, 0 VSports手机版. 68-0. 92)/ 0. 77 (0. 65-0. 89), and 0. 87 (shoulder level distal space, 0. 80-0. 93)/ 0. 80 (0. 68-0. 92) (P < 0. 001, each item). All of them showed substantial agreement, but the MDC of the SWMT evaluator size was 1. 28 to 1. 79 in the inter-rater test and 1. 94-2. 06 in the intra-rater test. The SWMT grade score showed a strong correlation with the SIAS light touch sensation item (r = 0. 65, p < 0. 001), as did the TLT with the SIAS position sense item (r = -0. 70-0. 62, p < 0. 001 each space). Conclusions: The reliability and validity of the SWMT and the TLT were verified. These tests can be used as reliable sensory examinations of the UE in patients with chronic stroke, and especially for the SWMT, it is more reliable for screening. .

Keywords: Semmes-Weinstein monofilament test; assessment; rehabilitation; somatosensory disorders; stroke; thumb localizing test V体育安卓版. .

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Conflict of interest statement

The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.

Figures

Figure 1
Figure 1
Thumb Localizing Test (TLT). (A) positioning of the paretic UE by the examiner. (B) four spaces in which the paretic UE is placed. Distal spaces are not far from the trunk because the reaching limb should be able to reach them without difficulty. (C) rating of positive results. 1 degree, Once the thumb and index finger of the reaching limb reached several centimeters away from the tip of the thumb of the fixed limb then found themselves not reached to the tip. After that, they make a course correction and finally reach the tip. It is also rated 1 degree if the course of the reaching limb was not linear though the reaching limb could reach to the tip at one time. 2 degrees, The thumb and index finger of the reaching limb reach a place more than a several centimeters from the tip of the thumb of the fixed limb, and move in the air searching for the thumb. Or they accidentally hit the thumb or other fingers of the fixed limb and reach the tip of the thumb tracing over the skin. It is also the case that the patient succeeds in the procedure by moving the thumb of the fixed limb even though he or she was instructed not to do that. 3 degrees, The reaching limb hits the forearm of the fixed limb and reaches the thumb tracing over the skin or the reaching limb moves in the air without finding the thumb and finally the patient abandons the test.
Figure 2
Figure 2
Bland-Altman plot of the evaluator size of the Semmes-Weinstein Monofilament Test. The solid line represents the mean difference. The dashed line represents the upper and lower limits of agreements of the difference.
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