Measurement properties of the Boston Carpal Tunnel Questionnaire in subjects with neurophysiological confirmation of carpal tunnel syndrome: a Rasch analysis perspective

2021 ◽  
Author(s):  
Camilo Mendoza-Pulido ◽  
Fernando Ortiz-Corredor
Keyword(s):  
Carpal Tunnel Syndrome ◽  
Carpal Tunnel ◽  
Rasch Analysis ◽  
Measurement Properties ◽  
Boston Carpal Tunnel Questionnaire ◽  
Tunnel Syndrome ◽  
Carpal Tunnel Questionnaire

scholarly journals Structural Validity of the Boston Carpal Tunnel Questionnaire and its Short Version the 6-Item CTS Symptoms Scale: A Rasch Analysis One Year After Surgery

2020 ◽  
Author(s):  
Juhani Multanen ◽  
Jari Ylinen ◽  
Teemu Karjalainen ◽  
Joona Ikonen ◽  
Arja Häkkinen ◽  
...  
Keyword(s):  
Carpal Tunnel Syndrome ◽  
Differential Item Functioning ◽  
Carpal Tunnel ◽  
Rasch Analysis ◽  
Item Functioning ◽  
Boston Carpal Tunnel Questionnaire ◽  
Tunnel Syndrome ◽  
Ordered Response ◽  
Carpal Tunnel Questionnaire ◽  
One Year

Abstract Background: The Boston Carpal Tunnel Questionnaire (BCTQ) and its shorter version Six-Item Carpal Tunnel Symptoms Scale (CTS-6) are widely used for assessing function and/or symptoms in patients with carpal tunnel syndrome. The present study examined the structural validity of the BCTQ and CTS-6 among patients who had undergone surgery for treatment of carpal tunnel syndrome. Methods: The data was obtained from 217 adult patients who had undergone carpal tunnel release one year earlier. The Rasch Measurement Theory was applied to investigate the unidimensionality, residual correlation, differential item functioning, scale coverage/targeting, and person separation of the CTS-6, Symptom Severity Scale (SSS) and Functional Status Scale (FSS) of the BCTQ.Results: The FSS of the BCTQ showed good scale and item fit and unidimensionality. FSS items had ordered response categories. Eight items in the FSS displayed differential item functioning favoring age or gender. The multidimensional structure of the CTS-6 was absorbed by creating a testlet for frequency of symptoms or testlets for pain and numbness. The testlets supported unidimensionality in the BCTQ SSS. Two items had differential item functioning favoring age or gender in the CTS-6 and the BCTQ SSS. Some items in the BCTQ SSS and CTS-6 had disordered response category thresholds. Merging of response categories led to ordered response category thresholds. The person separation indices were 0.73, 0.86 and 0.77 for the CTS-6 and BCTQ SSS and FSS, respectively, indicating good reliability of the measures.Conclusions: Based on the Rasch analysis, the CTS-6 has superior psychometric properties compared to the BCTQ SSS in surgically treated patients. The CTS-6 might be more accurate when separated into item sets measuring pain or numbness. The FSS of the BCTQ has acceptable construct validity, although sex differences at some ages were observed in responses.

A COMPARISON OF FUNCTIONAL ASSESSMENT OF PRE- AND POSTSURGICAL CARPAL TUNNEL SYNDROME USING BOSTON CARPAL TUNNEL QUESTIONNAIRE AND NERVE CONDUCTION STUDY: A PROSPECTIVE STUDY FROM A TERTIARY CENTER OF SOUTH INDIA

2021 ◽  
pp. 117-120
Author(s):  
Padmapriyadarsini V ◽  
Navin K ◽  
Abdul Gafoor S ◽  
Chitra G
Keyword(s):  
Carpal Tunnel Syndrome ◽  
Functional Outcome ◽  
Conduction Velocity ◽  
Carpal Tunnel ◽  
Nerve Conduction Study ◽  
Electrophysiological Study ◽  
Carpal Tunnel Release ◽  
Boston Carpal Tunnel Questionnaire ◽  
Tunnel Syndrome ◽  
Carpal Tunnel Questionnaire

INTRODUCTION: Carpal tunnel syndrome (CTS) is the most common entrapment syndrome of median nerve causing frequent disability especially among working populations. Boston Carpal Tunnel Questionnaire and Electrophysiological study helps in detecting and aiding in the diagnosis of CTS and helps in determining level of improvement after surgical release of carpal tunnel. OBJECTIVES: To assess functional outcome of patients with Carpal Tunnel Syndrome after surgery as assessed by Boston Carpel Tunnel Questionnaire and Electrophysiological study. METHODS: A prospective observational study conducted over a period of one year (January 2017 to January 2018). The study was conducted among consecutive 31 electrophysiological conrmed carpal tunnel syndrome attending the outpatient department of Physical Medicine and Rehabilitation, Government Medical College, Thiruvananthapuram. All patients underwent open carpal tunnel release. Functional outcome was assessed using Boston Carpal Tunnel Questionnaire (BCTQ) both preoperatively and at interval of 3 weeks, 6weeks and 3 months postoperatively. Electrophysiological study assessed using nerve conduction study both preoperatively and 3 weeks post operatively. Data was entered in Microsoft excel and analyzed using SPSS statistical software. RESULTS: The study involves 31 conrmed cases of Carpal tunnel syndrome patients. Mean Boston Carpal Tunnel Questionnaire (BCTQ) score preoperatively was 58.52 ± 12.73 which was markedly improved postoperatively at 3weeks with mean score of 29.77±6.68. At 6 weeks and 3 month follow up period it was reduced respectively to mean score of 23.94±4.23 and 22.94±4.62. Preoperative NCS shows decreased conduction velocity with mean nerve sensory velocity (NSV) score 21.51±8.19 and mean nerve motor velocity (NMV) score of 20.72±8.81 which statistically improved following surgery with mean NSV score of 32.04±9.01 and mean NML score of 33.78±8.1. Correlation between pre- and post-operative BCTQ and NCS parameters shows positive correlation with latency and negative correlation with amplitude and conduction velocity. Increased latency and decreased conduction velocity associated with higher BCTQ score with signicant 'p' value (p<0.05). CONCLUSION: There is statistically signicant improvement of functional outcome following carpal tunnel release surgery assessed through Boston Carpal Tunnel Questionnaire and Electrophysiological ndings

scholarly journals Reliability and Validity of The Finnish Version of The Boston Carpal Tunnel Questionnaire among Surgically Treated Carpal Tunnel Syndrome Patients

2019 ◽  
Vol 109 (4) ◽  
pp. 343-350
Author(s):  
J. Multanen ◽  
J. Ylinen ◽  
T. Karjalainen ◽  
H. Kautiainen ◽  
J. P. Repo ◽  
...  
Keyword(s):  
Carpal Tunnel Syndrome ◽  
Functional Status ◽  
Carpal Tunnel ◽  
Symptom Severity ◽  
Severity Scale ◽  
Floor Effect ◽  
Symptom Severity Scale ◽  
Boston Carpal Tunnel Questionnaire ◽  
Tunnel Syndrome ◽  
Carpal Tunnel Questionnaire

Background and Aims: The Boston Carpal Tunnel Questionnaire is the most commonly used outcome measure in the assessment of carpal tunnel syndrome. The purpose of this study was to translate the original Boston Carpal Tunnel Questionnaire into Finnish and validate its psychometric properties. Materials and Methods: We translated and culturally adapted the Boston Carpal Tunnel Questionnaire into Finnish. Subsequently, 193 patients completed the Finnish version of the Boston Carpal Tunnel Questionnaire, 6-Item CTS Symptoms Scale, and EuroQol 5 Dimensions 12 months after carpal tunnel release. The Boston Carpal Tunnel Questionnaire was re-administered after a 2-week interval. We calculated construct validity, internal consistency, test–retest reliability, and coefficient of repeatability. We also examined floor and ceiling effects. Results: The cross-cultural adaptation required only minor modifications to the questions. Both subscales of the Boston Carpal Tunnel Questionnaire (Symptom Severity Scale and Functional Status Scale) correlated significantly with the CTS-6 and EuroQol 5 Dimensions, indicating good construct validity. The Cronbach’s alpha was 0.93 for both the Symptom Severity Scale and Functional Status Scale, indicating high internal consistency. Test–retest reliability was excellent, with an intraclass correlation coefficient greater than 0.8 for both scales. The coefficient of repeatability was 0.80 for the Symptom Severity Scale and 0.68 for the Functional Status Scale. We observed a floor effect in the Functional Status Scale in 28% of participants. Conclusion: Our study shows that the present Finnish version of the Boston Carpal Tunnel Questionnaire is reliable and valid for the evaluation of symptom severity and functional status among surgically treated carpal tunnel syndrome patients. However, owing to the floor effect, the Functional Status Score may have limited ability to detect differences in patients with good post-operative outcomes.

scholarly journals Structural validity of the Boston Carpal Tunnel Questionnaire and its short version, the 6-Item CTS symptoms scale: a Rasch analysis one year after surgery

2020 ◽  
Vol 21 (1) ◽  
Author(s):  
Juhani Multanen ◽  
Jari Ylinen ◽  
Teemu Karjalainen ◽  
Joona Ikonen ◽  
Arja Häkkinen ◽  
...  
Keyword(s):  
Carpal Tunnel Syndrome ◽  
Differential Item Functioning ◽  
Carpal Tunnel ◽  
Response Category ◽  
Structural Validity ◽  
Item Functioning ◽  
Boston Carpal Tunnel Questionnaire ◽  
Tunnel Syndrome ◽  
Ordered Response ◽  
Carpal Tunnel Questionnaire

Abstract Background The Boston Carpal Tunnel Questionnaire (BCTQ) and its shorter version, the Six-Item Carpal Tunnel Symptoms Scale (CTS-6), are widely used for assessing function and/or symptoms in patients with carpal tunnel syndrome. This study examined the structural validity of the BCTQ and CTS-6 among patients who had undergone surgery for treatment of carpal tunnel syndrome. Methods The data for this cross-sectional analysis were obtained from 217 adult patients who had undergone carpal tunnel release surgery 1 year earlier. All patients completed the CTS-6, Symptom Severity Scale (SSS) and Functional Status Scale (FSS) of the BCTQ at 12 months after surgery. The Rasch Measurement Theory (RMT) was applied to investigate the unidimensionality, residual correlation, differential item functioning, scale coverage/targeting, and person separation of the CTS-6, SSS and FSS of the BCTQ. Results The FSS showed unidimensionality and good scale and item fit. All items showed ordered response category thresholds. Eight of the FSS items displayed differential item functioning favoring age or gender. The multidimensional structure of the CTS-6 was absorbed by creating a testlet for frequency of symptoms or testlets for pain and numbness. The testlets supported unidimensionality in the BCTQ SSS. One item in the CTS-6 and two items in the BCTQ SSS showed differential item functioning favoring age or gender. Four items in the BCTQ SSS and two items in the CTS-6 exhibited disordered response category thresholds. Merging of the relevant response categories led to ordered response category thresholds. The person separation indices were 0.73, 0.86 and 0.77 for the CTS-6, BCTQ SSS and FSS, respectively. Conclusions Based on the RMT analysis, the CTS-6 has superior psychometric properties compared to the BCTQ SSS in surgically treated patients. The CTS-6 might be more accurate when separated into item sets measuring pain or numbness. The FSS of the BCTQ has acceptable construct validity, although gender differences at some ages were observed in responses.

scholarly journals Assessment of carpal tunnel syndrome via ultrasonography among hospital workers: a screening study

2021 ◽  
Vol 57 (1) ◽  
Author(s):  
Mai Fathy ◽  
Ahmed ElSadek ◽  
Eman Hamid ◽  
Amr AbdElMoneim
Keyword(s):  
Carpal Tunnel Syndrome ◽  
Carpal Tunnel ◽  
Sectional Area ◽  
Hospital Workers ◽  
Cross Sectional ◽  
Non Invasive ◽  
Boston Carpal Tunnel Questionnaire ◽  
Screening Study ◽  
Tunnel Syndrome ◽  
Carpal Tunnel Questionnaire

Abstract Background Carpal tunnel syndrome is a reasonably common disorder among working individuals. It may also be a cause of functional impairment. The aim of the study was to screen for the presence of carpal tunnel syndrome among hospital workers by non-invasive ultrasound. Results The prevalence of carpal tunnel syndrome diagnosed by ultrasound among hospital workers was 21.5%. Age and Boston carpal tunnel questionnaire scale were positively correlated to median nerve cross sectional area. Conclusions Ultrasound can be used as a non-invasive and convenient method for screening for carpal tunnel syndrome.

Ultrasound of the Median Nerve in the Surgical Treatment of Severe Carpal Tunnel Syndrome

Hand ◽  
2021 ◽  
pp. 155894472098807
Author(s):  
William Melton ◽  
Maximillian Soong ◽  
Gabrielle Paci ◽  
Brian Clair ◽  
Dayana Blanchet ◽  
...  
Keyword(s):  
High Resolution ◽  
Carpal Tunnel Syndrome ◽  
Median Nerve ◽  
Carpal Tunnel ◽  
Carpal Tunnel Release ◽  
Statistical Significance ◽  
Objective Assessment ◽  
Boston Carpal Tunnel Questionnaire ◽  
Tunnel Syndrome ◽  
Carpal Tunnel Questionnaire

Background High-resolution ultrasound (HRU) has demonstrated utility in the diagnosis and treatment of carpal tunnel syndrome (CTS) by measuring the cross-sectional area (CSA) of the median nerve. We investigated whether HRU could be helpful in evaluating outcomes of carpal tunnel release in patients with severe CTS. Methods Patients greater than 18 years of age with severe CTS on electrodiagnostic (EDX) studies and scheduled to have carpal tunnel release were enrolled. At baseline visit within 6 weeks preoperatively, HRU was used to measure median nerve CSA at the carpal tunnel inlet and forearm, and the wrist/forearm ratio (WFR) was calculated. Patients also completed the Boston Carpal Tunnel Questionnaire (BCTQ). Ultrasound and BCTQ were repeated at 6 weeks and 6 months postoperatively. Results Twelve patients completed the study (average age, 69 years; range, 52-80 years). The WFR improved significantly at 6 weeks and reached normal levels at 6 months. The CSA at the wrist also improved at 6 months, although this did not reach statistical significance ( P = .059). Boston Carpal Tunnel Questionnaire symptoms and function scores improved significantly at 6 weeks and 6 months. Conclusions High-resolution ultrasound provides an objective assessment of surgical outcomes in cases of severe CTS, demonstrating normalization of WFR in our series of successful cases. Future study of poor outcomes may help determine whether improvement in WFR and CSA can provide reassurance and support for observation rather than reoperation. Ultrasound also provides anatomical evaluation and may be helpful in cases with medicolegal or psychosocial issues while potentially being less costly and better tolerated than EDX or magnetic resonance imaging.

scholarly journals The experience of using anti-adhesion gel in the surgery for carpal tunnel syndrome

2021 ◽  
Vol 23 (3) ◽  
pp. 39-47
Author(s):  
A. S. Nikitin ◽  
I. B. Aleynikova
Keyword(s):  
Carpal Tunnel Syndrome ◽  
Functional Status ◽  
Carpal Tunnel ◽  
Control Group ◽  
Study Group ◽  
Clinical Relapse ◽  
Study Objective ◽  
Boston Carpal Tunnel Questionnaire ◽  
Tunnel Syndrome ◽  
Carpal Tunnel Questionnaire

The study objective is to evaluate the effectiveness of anti‑adhesion gel by using in carpal tunnel syndrome surgery.Materials and methods. A prospective study was carried out among 55 patients with carpal tunnel syndrome. All patients were underwent open decompression of the carpal tunnel. Patients of study group (n = 25) got an carboxymethylcellu‑ lose anti‑adhesion gel, which was applied to the nerve before suturing the wound. Patients from control group (n = 30) were underwent surgery without using an anti‑adhesive gel. Before surgery, all patients underwent a clinical neurological examination with an assessment of symptoms according to the Boston Carpal Tunnel Questionnaire, which includes 2 scales: the scale and the functional status scale. The Boston Carpal Tunnel Questionnaire was reevaluated 2.5 years after surgery.Results. In study group the mean symptom severity decreased by 59.5 %, functional status improved by 55.1 %, in control group these indicators were 48.3 and 47.6 %. Clinical relapse of the disease was noted in 8 % of patients of study group and in 20 % of patients of control group.Conclusion. Intraoperative using of an anti‑adhesion gel allows to reduce the frequency of recurrence of carpal tunnel syndrome after surgical decompression.

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