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Chhabra A, Duarte Silva F, Mogharrabi B, Guirguis M, Ashikyan O, Rasper M, Park E, Walter SS, Umpierrez M, Pezeshk P, Thurlow PC, Jagadale A, Bajaj G, Komarraju A, Wu JS, Aguilera A, Cardoso FN, Souza F, Chaganti S, Antil N, Manzano W, Stebner A, Evers J, Petterson M, Geisbush T, Downing C, Christensen D, Horneber E, Kim JM, Purushothaman R, Mohanan S, Raichandani S, Vilanilam G, Cabrera C, Manov J, Maloney S, Deshmukh SD, Lutz AM, Fritz J, Andreisek G, Chalian M, Wong PK, Pandey T, Subhawong T, Xi Y. MRI-based Neuropathy Score Reporting And Data System (NS-RADS): multi-institutional wider-experience usability study of peripheral neuropathy conditions among 32 radiology readers. Eur Radiol 2024; 34:5228-5238. [PMID: 38244046 DOI: 10.1007/s00330-023-10517-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Revised: 10/04/2023] [Accepted: 11/16/2023] [Indexed: 01/22/2024]
Abstract
OBJECTIVE To determine the inter-reader reliability and diagnostic performance of classification and severity scales of Neuropathy Score Reporting And Data System (NS-RADS) among readers of differing experience levels after limited teaching of the scoring system. METHODS This is a multi-institutional, cross-sectional, retrospective study of MRI cases of proven peripheral neuropathy (PN) conditions. Thirty-two radiology readers with varying experience levels were recruited from different institutions. Each reader attended and received a structured presentation that described the NS-RADS classification system containing examples and reviewed published articles on this subject. The readers were then asked to perform NS-RADS scoring with recording of category, subcategory, and most likely diagnosis. Inter-reader agreements were evaluated by Conger's kappa and diagnostic accuracy was calculated for each reader as percent correct diagnosis. A linear mixed model was used to estimate and compare accuracy between trainees and attendings. RESULTS Across all readers, agreement was good for NS-RADS category and moderate for subcategory. Inter-reader agreement of trainees was comparable to attendings (0.65 vs 0.65). Reader accuracy for attendings was 75% (95% CI 73%, 77%), slightly higher than for trainees (71% (69%, 72%), p = 0.0006) for nerves and comparable for muscles (attendings, 87.5% (95% CI 86.1-88.8%) and trainees, 86.6% (95% CI 85.2-87.9%), p = 0.4). NS-RADS accuracy was also higher than average accuracy for the most plausible diagnosis for attending radiologists at 67% (95% CI 63%, 71%) and for trainees at 65% (95% CI 60%, 69%) (p = 0.036). CONCLUSION Non-expert radiologists interpreted PN conditions with good accuracy and moderate-to-good inter-reader reliability using the NS-RADS scoring system. CLINICAL RELEVANCE STATEMENT The Neuropathy Score Reporting And Data System (NS-RADS) is an accurate and reliable MRI-based image scoring system for practical use for the diagnosis and grading of severity of peripheral neuromuscular disorders by both experienced and general radiologists. KEY POINTS • The Neuropathy Score Reporting And Data System (NS-RADS) can be used effectively by non-expert radiologists to categorize peripheral neuropathy. • Across 32 different experience-level readers, the agreement was good for NS-RADS category and moderate for NS-RADS subcategory. • NS-RADS accuracy was higher than the average accuracy for the most plausible diagnosis for both attending radiologists and trainees (at 75%, 71% and 65%, 65%, respectively).
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Affiliation(s)
- Avneesh Chhabra
- Department of Radiology, UT Southwestern Medical Center, Dallas, TX, 75390-9178, USA.
- Department of Orthopedic Surgery, UT Southwestern Medical Center, Dallas, TX, 75390-9178, USA.
- Johns Hopkins University, Baltimore, MD, USA.
- University of Dallas, Richardson, TX, USA.
- Walton Centre for Neuroscience, Liverpool, UK.
| | - Flavio Duarte Silva
- Department of Radiology, UT Southwestern Medical Center, Dallas, TX, 75390-9178, USA
| | - Bayan Mogharrabi
- Department of Radiology, UT Southwestern Medical Center, Dallas, TX, 75390-9178, USA
- Transition Year Residency, John Peter Smith Hospital, Fort Worth, USA
| | - Mina Guirguis
- Department of Radiology, UT Southwestern Medical Center, Dallas, TX, 75390-9178, USA
| | - Oganes Ashikyan
- Department of Radiology, UT Southwestern Medical Center, Dallas, TX, 75390-9178, USA
| | - Michael Rasper
- Institute of Radiology, Cantonal Hospital Münsterlingen, Münsterlingen, Switzerland
| | - Eunhae Park
- Division of Musculoskeletal Radiology, Department of Radiology, NYU Grossman School of Medicine, New York City, NY, USA
- Department of Radiology, Research Institute of Clinical Medicine of Jeonbuk National University - Biomedical Research Institute of Jeonbuk National University Hospital, Jeonju, Republic of Korea
| | - Sven S Walter
- Division of Musculoskeletal Radiology, Department of Radiology, NYU Grossman School of Medicine, New York City, NY, USA
- Department for Diagnostic and Interventional Radiology, Eberhard Karls University Tuebingen, Tübingen, Germany
| | - Monica Umpierrez
- Division of Musculoskeletal Radiology, Department of Radiology and Imaging Services, Emory University School of Medicine, Atlanta, GA, USA
| | - Parham Pezeshk
- Department of Radiology, UT Southwestern Medical Center, Dallas, TX, 75390-9178, USA
| | - Peter C Thurlow
- Musculoskeletal Imaging and Intervention, Department of Radiology, University of Washington, Seattle, WA, USA
| | - Akshaya Jagadale
- Department of Radiology, University of Arkansas for Medical Sciences, Little Rock, AR, USA
| | - Gitanjali Bajaj
- Department of Radiology, University of Arkansas for Medical Sciences, Little Rock, AR, USA
| | - Aparna Komarraju
- Department of Radiology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
| | - Jim S Wu
- Department of Radiology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
| | - Antonio Aguilera
- Division of Musculoskeletal Radiology, Department of Radiology, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Fabiano Nassar Cardoso
- Division of Musculoskeletal Radiology, Department of Radiology, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Felipe Souza
- Division of Musculoskeletal Radiology, Department of Radiology, University of Miami Miller School of Medicine, Miami, FL, USA
| | | | - Neha Antil
- Department of Radiology, Stanford University, Stanford, CA, USA
| | - Wilfred Manzano
- Department of Radiology, Stanford University, Stanford, CA, USA
| | - Alexander Stebner
- Institute of Radiology, Cantonal Hospital Münsterlingen, Münsterlingen, Switzerland
| | - Jochen Evers
- Institute of Radiology, Cantonal Hospital Münsterlingen, Münsterlingen, Switzerland
| | | | - Thomas Geisbush
- Department of Radiology, Stanford University, Stanford, CA, USA
| | - Chad Downing
- Musculoskeletal Imaging and Intervention, Department of Radiology, University of Washington, Seattle, WA, USA
| | - Diana Christensen
- Musculoskeletal Imaging and Intervention, Department of Radiology, University of Washington, Seattle, WA, USA
| | - Elizabeth Horneber
- Musculoskeletal Imaging and Intervention, Department of Radiology, University of Washington, Seattle, WA, USA
| | - Jun Man Kim
- Division of Musculoskeletal Radiology, Department of Radiology and Imaging Services, Emory University School of Medicine, Atlanta, GA, USA
| | | | - Shilpa Mohanan
- Department of Radiology, University of Arkansas for Medical Sciences, Little Rock, AR, USA
| | - Surbhi Raichandani
- Department of Radiology, University of Arkansas for Medical Sciences, Little Rock, AR, USA
| | - George Vilanilam
- Department of Radiology, University of Arkansas for Medical Sciences, Little Rock, AR, USA
| | - Clementina Cabrera
- Division of Musculoskeletal Radiology, Department of Radiology, University of Miami Miller School of Medicine, Miami, FL, USA
| | - John Manov
- Division of Musculoskeletal Radiology, Department of Radiology, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Sean Maloney
- Division of Musculoskeletal Radiology, Department of Radiology, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Swati D Deshmukh
- Department of Radiology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
| | - Amelie M Lutz
- Division of Musculoskeletal Radiology, Department of Radiology, NYU Grossman School of Medicine, New York City, NY, USA
- Transition Year Residency, John Peter Smith Hospital, Fort Worth, USA
| | - Jan Fritz
- Division of Musculoskeletal Radiology, Department of Radiology, NYU Grossman School of Medicine, New York City, NY, USA
| | - Gustav Andreisek
- Institute of Radiology, Cantonal Hospital Münsterlingen, Münsterlingen, Switzerland
| | - Majid Chalian
- Musculoskeletal Imaging and Intervention, Department of Radiology, University of Washington, Seattle, WA, USA
| | - Philip K Wong
- Division of Musculoskeletal Radiology, Department of Radiology and Imaging Services, Emory University School of Medicine, Atlanta, GA, USA
| | - Tarun Pandey
- Department of Radiology, University of Arkansas for Medical Sciences, Little Rock, AR, USA
| | - Ty Subhawong
- Division of Musculoskeletal Radiology, Department of Radiology, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Yin Xi
- Department of Radiology, UT Southwestern Medical Center, Dallas, TX, 75390-9178, USA
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Chen Q, Zou X, Xia Y, Hu Y, Chen C, Zheng P. B-Mode ultrasound imaging in diagnosing carpal tunnel syndrome: an auxiliary diagnostic tool for hand surgeons. Front Neurol 2024; 15:1325464. [PMID: 38348169 PMCID: PMC10860751 DOI: 10.3389/fneur.2024.1325464] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2023] [Accepted: 01/11/2024] [Indexed: 02/15/2024] Open
Abstract
Objective The purpose of this article is to explore the effectiveness of B-Mode ultrasound as an auxiliary diagnostic tool for carpal tunnel syndrome (CTS). It aims to demonstrate the advantages of B-Mode ultrasound, including its non-invasive nature and its ability to provide real-time imaging, in localizing nerve compression and predicting postoperative outcomes. Methods The study included 40 patients who were subjected to preoperative B-ultrasonography. The approach focused on evaluating the consistency of B-Mode ultrasound results with intraoperative findings. It also assessed the importance of employing standardized imaging techniques and emphasized the need for cooperation between hand surgeons and sonographers for accurate diagnosis. Results B-Mode ultrasound findings in the study were consistent with intraoperative observations, indicating its reliability. Additionally, B-Mode ultrasound was able to identify other anatomical abnormalities within the carpal canal that may contribute to CTS symptoms, such as persistent median arteries, median nerve bifurcation, and space-occupying lesions like cysts and tumors. Conclusion The article concludes that B-Mode ultrasound should be considered a valuable supplementary diagnostic tool for CTS, particularly in instances where clinical signs and electrophysiological studies do not offer clear results. However, it should not replace established diagnostic methods for CTS.
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Affiliation(s)
- Qiang Chen
- Center for Plastics & Reconstructive Surgery, Department of Hand & Reconstructive Surgery, Zhejiang Provincial People’s Hospital, Affiliated People’s Hospital, Hangzhou Medical College, Hangzhou, Zhejiang, China
| | - Xiaodi Zou
- Department of Orthopedics, The Second Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, Zhejiang Province, China
| | - Yanting Xia
- Department of Gastrointestinal Surgery, The Second Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, Zhejiang Province, China
| | - Yingnan Hu
- Department of Gastrointestinal Surgery, The Second Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, Zhejiang Province, China
| | - Congxian Chen
- Cancer Center, Department of Ultrasound Medicine, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang Province, China
| | - Ping Zheng
- Department of Plastics, Tiantai People’s Hospital of Zhejiang Province (Tiantai Branch of Zhejiang Provincial People’s Hospital), Hangzhou Medical College, Taizhou, Zhejiang, China
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Liu C, Varady N, Chruscielski CM, Zhang D, Blazar P, Earp BE. Clinic Study Completion Rate in Orthopedic Surgery. JOURNAL OF HAND SURGERY GLOBAL ONLINE 2024; 6:12-15. [PMID: 38313622 PMCID: PMC10837181 DOI: 10.1016/j.jhsg.2023.07.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Accepted: 07/29/2023] [Indexed: 02/06/2024] Open
Abstract
Purpose The primary aim of this study is to determine the rate of completion of clinic-based study orders. Secondarily, we attempt to determine factors associated with study incompletion. Methods This retrospective study included 591 clinic-based studies that were ordered for 510 patients at the time of clinical evaluation at a single medical center between April 8, 2018 and August 22, 2019. Inclusion criteria were studies ordered in a hand clinic for consecutive adult patients to be completed after the visit. Exclusion criteria included pediatric patients and routine radiographs obtained prior to the visit. Invasive studies were defined as studies with a significant procedural component, such as aspirations, injections and electromyography/nerve conduction (electrodiagnostic) studies (EDS). Blood tests and imaging were considered noninvasive. Patient demographics and study completion rates were collected through chart reviews. Univariate and bivariate analyses were performed, and P <.05 was considered significant. Results The overall clinic-based study completion rate was 94.2%, with the highest incompletion rates seen in invasive studies (8.3%, n = 34) compared to noninvasive studies (3.3%, n = 10). Within the invasive study category, EDS had the highest rate of incompletion (11.4%) and contributed to the majority of incompletions in the invasive cohort (20/24). The median time to study completion was 7 days (interquartile range [IQR] 2-21). Race, gender, English as primary language, marriage status, insurance type, and distance from facility were similar between completed and noncompleted studies. Conclusion Study completion rates were similar between all patients regardless of race, gender, and other social economic variables. Invasive studies, particularly EDS, had higher rates of incompletion and can be barriers to patients receiving additional care. Type of study/level of evidence Therapeutic III.
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Affiliation(s)
- Christina Liu
- Division of Hand and Upper Extremity Surgery, Department of Orthopedics, Brigham and Women’s Hospital, Boston, MA
- Harvard Medical School, Boston, MA
| | - Nathan Varady
- Division of Hand and Upper Extremity Surgery, Department of Orthopedics, Brigham and Women’s Hospital, Boston, MA
| | - Cassandra M. Chruscielski
- Division of Hand and Upper Extremity Surgery, Department of Orthopedics, Brigham and Women’s Hospital, Boston, MA
| | - Dafang Zhang
- Division of Hand and Upper Extremity Surgery, Department of Orthopedics, Brigham and Women’s Hospital, Boston, MA
- Harvard Medical School, Boston, MA
| | - Philip Blazar
- Division of Hand and Upper Extremity Surgery, Department of Orthopedics, Brigham and Women’s Hospital, Boston, MA
- Harvard Medical School, Boston, MA
| | - Brandon E. Earp
- Division of Hand and Upper Extremity Surgery, Department of Orthopedics, Brigham and Women’s Hospital, Boston, MA
- Harvard Medical School, Boston, MA
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Alkaphoury MG, Dola EF. Ultrasound and magnetic resonance imaging neurography assessment of diagnostic criteria in patients with carpal tunnel syndrome using electrophysiological tests as gold standard: A prospective study. SAGE Open Med 2023; 12:20503121231218889. [PMID: 38162910 PMCID: PMC10757434 DOI: 10.1177/20503121231218889] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2023] [Accepted: 11/16/2023] [Indexed: 01/03/2024] Open
Abstract
Objectives Evaluating peripheral neuropathy mainly relies on physical examination, patient history, and electrophysiological studies. High-resolution ultrasound is a fast, noninvasive modality for dynamic nerve assessment that enables the length of the nerve to be examined. Magnetic resonance imaging is preferred for examining deeper nerves with a high contrast resolution; its use shows excellent benefit in patients with atypical presentation, equivocal diagnosis, suspected secondary causes, and postsurgical relapse. We aimed to assess the measurements and criteria for both ultrasound and magnetic resonance neurography for the diagnosis of carpal tunnel syndrome, based mainly on the three measurements assessed by Buchberger et al. Methods This prospective study was conducted to test diagnostic accuracy. Thirty-two patients who presented clinically with, and were diagnosed by electrophysiological tests as having, carpal tunnel syndrome participated. Superficial ultrasound of the wrist joint was performed on all participants, followed by magnetic resonance imaging within 1 week of ultrasonography. Results The three main parameters of cross-sectional area measurement, distal nerve flattening, and flexor retinaculum bowing indices showed positive occurrences of 93.7%, 59.4%, and 59.4%, respectively; 90.6% of patients had decreased nerve echotexture. The diagnostic ability of magnetic resonance imaging was decreased when cross-sectional area measurements were used: positive results were achieved in 81.2% of patients, but the positive results showing the distal tunnel nerve increased flattening and bowed flexor retinaculum slightly decreased to 56.2% for each. A high T2 signal of the median nerve was observed in 90.6% of patients. In an agreement analysis, we found a statistically significant difference that supported the use of ultrasound as a primary diagnostic modality for carpal tunnel syndrome. However, magnetic resonance imaging improved tissue characterization and was a good diagnostic modality, with a statistically significant difference, for cases of secondary carpal tunnel syndrome, detection of the underlying entrapping cause, and early abnormality detection in the innervated muscle. Conclusions Our results demonstrate that ultrasound examination can be used as the first imaging modality after physician evaluation, with results comparable to those of electrophysiological studies for evaluating carpal tunnel syndrome and determining its cause. Magnetic resonance neurography examination is the second step in detecting secondary causes in cases with suspected early muscle denervation changes that cannot be elicited by ultrasound or in cases with equivocal results.
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Affiliation(s)
| | - Eman F Dola
- Faculty of Medicine, Ain Shams University, Cairo, Egypt
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Bennett OM, Sears ED. The Impact of Reference Standard on Diagnostic Testing Characteristics for Carpal Tunnel Syndrome: A Systematic Review. PLASTIC AND RECONSTRUCTIVE SURGERY-GLOBAL OPEN 2023; 11:e5067. [PMID: 37404780 PMCID: PMC10317486 DOI: 10.1097/gox.0000000000005067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Accepted: 04/28/2023] [Indexed: 07/06/2023]
Abstract
Lack of a reliable reference standard for carpal tunnel syndrome (CTS) diagnosis could impact the diagnostic test characteristics. This systematic review sought to evaluate differences in the accuracy of CTS diagnostic modalities based on the reference standard used. Methods A systematic review was performed following PRISMA guidelines to investigate diagnostic modalities used in CTS. A literature search of Embase, PubMed, and Cochrane Reviews was conducted for the years of 2010-2021 for primary data, and 113 studies met final inclusion criteria. Studies were stratified based on the reference standard utilized and diagnostic modality assessed, and the weighted means of the sensitivities and specificities were calculated. Results Thirty-five studies used clinical diagnosis alone as a reference standard, and 78 studies used electrodiagnostic study (EDS). The specificity for MRI and ultrasound (US) were substantially lower when EDS was used as the reference standard. MRI was the test most affected by the reference standard used, showing increased sensitivity when using EDS as the reference compared to clinical diagnosis (77.1% versus 60.9%) and decreased specificity (87.6% versus 99.2%). Regardless of the reference standard used, all tests had anticipated false-positive and/or false-negative rates of at least 10%. Conclusions Testing characteristics vary greatly based on the choice of reference standard, with the sensitivity of MRI most affected. Regardless of reference standard used, EDS, US, and MRI each had false-positive and/or false-negative rates too great to be appropriate for use as a screening examination.
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Affiliation(s)
| | - Erika D Sears
- From the University of Michigan Medical School, Ann Arbor, Mich
- Department of Surgery, Section of Plastic Surgery, Michigan Medicine, Ann Arbor, Mich
- Veterans Affairs Center for Clinical Management Research, VA Ann Arbor Healthcare System, Ann Arbor, Mich
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Wu H, Zhao HJ, Xue WL, Wang YC, Zhang WY, Wang XL. Ultrasound and elastography role in pre- and post-operative evaluation of median neuropathy in patients with carpal tunnel syndrome. Front Neurol 2022; 13:1079737. [PMID: 36588903 PMCID: PMC9800593 DOI: 10.3389/fneur.2022.1079737] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Accepted: 11/23/2022] [Indexed: 12/23/2022] Open
Abstract
Introduction Carpal tunnel syndrome (CTS) is a common compression neuropathy of the median nerve in the wrist. Early diagnosis of CTS is essential for selecting treatment options and assessing prognosis. The current diagnosis of CTS is based on the patient's clinical symptoms, signs, and an electromyography (EMG) test. However, they have some limitations. Recently, ultrasound has been adopted as an adjunct diagnostic tool for electromyography (EMG). Ultrasound is a non-invasive and cost-effective technique. It provides a dynamic display of morphological changes in the median nerve and an assessment of CTS etiology such as tenosynovitis, mass compression, and tendon disease. This study aimed to investigate the value of conventional ultrasound and real-time shear wave elastography (SWE) in evaluation of median neuropathy in patients with carpal tunnel syndrome (CTS) before and after surgery. Methods First, the Boston Carpal Tunnel Questionnaire (BCTQ) was administered to patients with CTS. All subjects were measured at three levels: the distal 1/3 of the forearm, the carpal tunnel inlet, and the distal carpal tunnel using conventional ultrasound and SWE. Median nerve parameters were examined in patients with CTS 1 week after surgery. Results The cross-sectional area (CSA) and stiffness of the median nerve at the carpal tunnel inlet and distal carpal tunnel were significantly higher in patients with CTS than in healthy controls (p < 0.001). The CSA and stiffness of the median nerve at the carpal tunnel inlet were statistically significantly significantly between pre- and postoperative patients with CTS (p < 0.001). The CSA and stiffness of the nerve in patients with CTS had a positive correlation with electrophysiology severity. Conclusions and discussion Conventional ultrasound and elastography are valuable in the diagnosis of CTS and are useful in the clinical assessment of patient's nerve recovery after operation.
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A 15-Year Review of Clinical Practice Patterns in Carpal Tunnel Syndrome Based on Continuous Certification by the American Board of Plastic Surgery. Plast Reconstr Surg 2022; 149:1140e-1148e. [PMID: 35404337 DOI: 10.1097/prs.0000000000009117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
BACKGROUND The American Board of Plastic Surgery has been collecting practice data on carpal tunnel syndrome treatment since 2004 as part of its Continuous Certification Program. These data allow plastic surgeons to compare their surgical experience to national trends and analyze those trends in relation to current evidence-based medicine. METHODS Data on carpal tunnel syndrome treatment from 2004 to 2014 were compared to those from 2015 to 2020. National practice trends observed in these data were evaluated relative to current literature regarding evidence-based practices. RESULTS A total of 11,090 carpal tunnel syndrome cases were included from 2004 to 2020. Electrodiagnostic and imaging studies were performed on most patients despite adding little sensitivity and specificity when physical examination tests are performed and not being considered cost-effective. An open "mini" approach has remained the most common surgical technique in carpal tunnel release for the last 15 years, with growing usage (53 percent versus 59 percent, p < 0.001). Splinting has decreased significantly over the last 15 years, from usage in 39 percent of patients to 28 percent (p < 0.001). Formal postoperative hand therapy has declined from 27 percent of patients to 22 percent (p < 0.001). Despite their low efficacy, 63 percent of patients received one or more perioperative doses of antibiotics. CONCLUSIONS Analysis of the Continuous Certification Program tracer data from the American Board of Plastic Surgery provides an excellent overview of current practice and its development over the 15 years since its inception. This analysis provides insight into how effectively plastic surgeons have remained aligned with developments in best practices in treating carpal tunnel syndrome.
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Xu C, Zhou Y, He Z, Liu W, Zou M, Sun Y, Qiu J, Ren Y, Mao G, Wang Y, Xi Q, Chen Y, Zhang B. Difference and ratio of the cross-sectional area of median nerve at the carpal tunnel and the pronator quadratus muscle in diagnosing carpal tunnel syndrome: a cross-sectional study. ANNALS OF TRANSLATIONAL MEDICINE 2022; 10:340. [PMID: 35433935 PMCID: PMC9011265 DOI: 10.21037/atm-22-1128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Accepted: 03/21/2022] [Indexed: 11/06/2022]
Abstract
Background At present, the most commonly used diagnostic method of carpal tunnel syndrome (CTS) is based on clinical manifestations and electrophysiology, but the electrophysiology is not cheap, invasive, and lacks the presentation of peripheral nerve conditions, which is exactly the advantage of ultrasound (US). The purpose of this study was to evaluate the accuracy and effectiveness of US in the diagnosis of CTS by calculating the cross-sectional area (CSA) at the carpal tunnel and proximally at the level of the pronator quadratus muscle., and to find an appropriate index that can be used to achieve the diagnosis in a more cost-effective manner. Methods Forty-three wrists from 35 symptomatic CTS patients and 23 wrists from 18 asymptomatic volunteers were evaluated. Diagnosis in the CTS group was based on the American Academy of Neurology clinical diagnostic criteria. The ultrasonic probe was placed at the carpal tunnel and the distal 1/3 of the pronator muscle respectively, and the carpal tunnel cross-sectional area (CSAC) and the proximal cross-sectional area (CSAP) was calculated, with a further calculation of their difference (ΔCSA) and ratio (R-CSA). Results There was a significant difference between the 2 groups regarding mean ± standard deviation (SD) of CSAC, CSAP, ΔCSA, and R-CSA (P<0.01). The cutoff value of 12.14 mm2 for CSAC had a sensitivity and specificity of 90.7% and 100%, respectively; the cutoff value of 1.235 mm2 for R-CSA had a sensitivity and specificity of 97.67% and 95.65%, respectively; and the cutoff value of 2.035 mm2 for ΔCSA had a sensitivity and specificity of 100% and 100%, respectively. Therefore, US was found to be an effective method for the diagnosis of CTS. Receiver operating characteristic curve (ROC) analysis of all patients showed area under the curve (AUC) was 0.9778 for CSAC, 0.9949 for R-CSA and 1.000 for ΔCSA. Conclusions US can provide reference values for the diagnosis of CTS. CSAC, ΔCSA, and R-CSA can be used for CTS diagnosis and evaluation. The ROC curve analysis showed that among the 3 values, ΔCSA was the most useful in the diagnosis of patients with CTS. ΔCSA is considered a valid diagnostic value for CTS, as its threshold of 2.04 mm2 showed the highest sensitivity and specificity.
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Affiliation(s)
- Cheng Xu
- Department of Imaging, Affiliated Hospital of Nantong University, Nantong, China.,Department of Infectious Diseases, Affiliated Hospital of Nantong University, Nantong, China
| | - Yang Zhou
- Department of Obstetrics and Gynecology, Affiliated Hospital of Nantong University, Nantong, China
| | - Zhou He
- Department of Orthopaedics, Dongtai People's Hospital, Yancheng, China
| | - Wei Liu
- Department of Obstetrics and Gynecology, Affiliated Hospital of Nantong University, Nantong, China
| | - Meilin Zou
- Department of Obstetrics and Gynecology, Rugao People's Hospital, Nantong, China
| | - Yanjun Sun
- Department of Obstetrics and Gynecology, Affiliated Hospital of Nantong University, Nantong, China
| | - Jinxin Qiu
- Department of Obstetrics and Gynecology, Affiliated Hospital of Nantong University, Nantong, China
| | - Yuting Ren
- Department of Emergency Medicine, Affiliated Hospital of Nantong University, Nantong, China
| | - Guomin Mao
- Department of Emergency Medicine, Affiliated Hospital of Nantong University, Nantong, China
| | - Yue Wang
- Department of Emergency Medicine, Affiliated Hospital of Nantong University, Nantong, China
| | - Qinghua Xi
- Department of Obstetrics and Gynecology, Affiliated Hospital of Nantong University, Nantong, China
| | - Yuehua Chen
- Department of Imaging, Nantong Third People's Hospital, Nantong, China
| | - Bin Zhang
- Department of Imaging, Affiliated Hospital of Nantong University, Nantong, China.,Department of Infectious Diseases, Affiliated Hospital of Nantong University, Nantong, China
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Expert consensus on the combined investigation of carpal tunnel syndrome with electrodiagnostic tests and neuromuscular ultrasound. Clin Neurophysiol 2022; 135:107-116. [DOI: 10.1016/j.clinph.2021.12.012] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Revised: 12/18/2021] [Accepted: 12/29/2021] [Indexed: 12/13/2022]
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Schulze DG, Nilsen KB, Killingmo RM, Zwart JA, Grotle M. Clinical Utility of the 6-Item CTS, Boston-CTS, and Hand-Diagram for Carpal Tunnel Syndrome. Front Neurol 2021; 12:683807. [PMID: 34385969 PMCID: PMC8353366 DOI: 10.3389/fneur.2021.683807] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Accepted: 06/28/2021] [Indexed: 11/13/2022] Open
Abstract
Background: Self-reported measures are often used in research and clinical practice to diagnose carpal tunnel syndrome (CTS) and guide therapeutic choices. We aimed to assess the clinical utility of the Norwegian versions of two self-reported outcome measures for symptom severity assessment, the 6-item CTS (CTS-6), and Boston-CTS (BCTQ), and of one diagnostic measure, the hand-diagram, by evaluating measurement properties including discriminative ability for severity assessment (CTS-6, BCTQ), and diagnosis of CTS (hand-diagram). Methods: We performed forward and backward translation and cultural adaptation of the Norwegian CTS-6 and BCTQ. Following COSMIN guidelines, we investigated internal consistency, reliability, construct validity, and discriminative ability for distinguishing between severity levels of CTS in patients with confirmed CTS for the CTS-6 and BCTQ and reliability and discriminative ability for diagnosing CTS for the hand-diagram. Results: Two hundred and fifty-one patients referred for diagnostic work-up for CTS with nerve conduction studies (NCS) participated. The CTS-6 and BCTQ had acceptable internal consistency (Crohnbach's α = 0.82 and 0.86, respectively), reliability (ICC = 0.86 and 0.90; SEM = 0.24 and 0.20; SDC95% = 0.68 and 0.55, respectively), construct validity (all eight pre-defined hypotheses confirmed) and discriminative ability to distinguish between severity levels of CTS [Area under the curve (AUC) = 0.75, 95% CI 0.64–0.85]. The hand-diagram had acceptable reliability (Cohen's kappa = 0.69) and discriminative ability to diagnose CTS (sensitivity = 0.72, specificity = 0.90). Conclusion: Our findings support the clinical utility of the CTS-6 and BCTQ for symptom severity assessment and of the hand-diagram for diagnostic screening.
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Affiliation(s)
- Daniel Gregor Schulze
- Department of Neurology, Oslo University Hospital and University of Oslo, Oslo, Norway.,Institute of Clinical Medicine, University of Oslo, Oslo, Norway.,Department of Research, Innovation and Education, Division of Clinical Neuroscience, Oslo University Hospital, Oslo, Norway
| | - Kristian Bernhard Nilsen
- Department of Neurology, Oslo University Hospital and University of Oslo, Oslo, Norway.,Department of Research, Innovation and Education, Division of Clinical Neuroscience, Oslo University Hospital, Oslo, Norway
| | | | - John Anker Zwart
- Institute of Clinical Medicine, University of Oslo, Oslo, Norway.,Department of Research, Innovation and Education, Division of Clinical Neuroscience, Oslo University Hospital, Oslo, Norway
| | - Margreth Grotle
- Department of Research, Innovation and Education, Division of Clinical Neuroscience, Oslo University Hospital, Oslo, Norway.,Oslo Metropolitan University, Oslo, Norway
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11
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Olde Dubbelink TBG, De Kleermaeker FGCM, Meulstee J, Bartels RHMA, Claes F, Verhagen WIM. Augmented Diagnostic Accuracy of Ultrasonography for Diagnosing Carpal Tunnel Syndrome Using an Optimised Wrist Circumference-Dependent Cross-Sectional Area Equation. Front Neurol 2020; 11:577052. [PMID: 33101186 PMCID: PMC7545037 DOI: 10.3389/fneur.2020.577052] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2020] [Accepted: 08/20/2020] [Indexed: 12/30/2022] Open
Abstract
Introduction: In diagnosing carpal tunnel syndrome (CTS) there is no consensus about the upper limit of normal (ULN) of the cross-sectional area (CSA) of the median nerve at the carpal tunnel inlet. A previous study showed wrist circumference is the most important independent predictor for the ULN. In this study we optimised a wrist circumference-dependent ULN equation for optimal diagnostic accuracy and compared it to the generally used fixed ULN of 11 mm2. Methods: CSA and wrist circumference were measured in a prospective cohort of 253 patients (clinically defined CTS) and 96 healthy controls. An equation for the ULN for CSA was developed by means of univariable regression analysis. We calculated z-scores for all patients and healthy controls, and analysed these scores in a ROC curve and a decision plot. Sensitivity and specificity were determined and compared to fixed ULN values. Results: We found augmented diagnostic accuracy of our newly developed equation y = 0.88 * x −4.0, where y = the ULN of the CSA and x = wrist circumference. This equation has a corresponding sensitivity and specificity of 75% compared to a sensitivity of 70% while using a fixed cut-off value of 11 mm2 (p = 0.015). Conclusion: Optimising the regression equation for wrist circumference-dependent ULN cross-sectional area of the median nerve at the wrist inlet might improve diagnostic accuracy of ultrasonography in patients with carpal tunnel syndrome and seems to be more accurate than using fixed cut-off values.
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Affiliation(s)
| | | | - Jan Meulstee
- Department of Neurology, Canisius-Wilhelmina Hospital, Nijmegen, Netherlands
| | - Ronald H M A Bartels
- Department of Neurosurgery, Radboud University Medical Centre, Nijmegen, Netherlands
| | - Franka Claes
- Department of Neurology, Vlietland Hospital, Schiedam, Netherlands
| | - Wim I M Verhagen
- Department of Neurology, Canisius-Wilhelmina Hospital, Nijmegen, Netherlands
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12
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Schulze DG, Nordby KC, Cvancarova Småstuen M, Clemm T, Grotle M, Zwart JA, Nilsen KB. Impact of technical variations on the ring-finger test for carpal tunnel syndrome. Clin Neurophysiol Pract 2019; 5:23-29. [PMID: 31909307 PMCID: PMC6940656 DOI: 10.1016/j.cnp.2019.11.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2019] [Revised: 11/19/2019] [Accepted: 11/23/2019] [Indexed: 11/15/2022] Open
Abstract
The median and ulnar nerves can be recorded consecutively or simultaneously to diagnose carpal tunnel syndrome. Simultaneous and consecutive recording of the median and ulnar nerves sensory latency have a poor agreement. Technical variations can have diagnostic consequences.
Objective To assess if recording the sensory latencies of the median and ulnar nerves one-by-one (consecutive) or at the same time (simultaneous) in the ring-finger test for carpal tunnel syndrome (CTS) will show equivalent results or if it will lead to a different clinical classification of patients. Methods We assessed the limits of agreement between the simultaneous and the consecutive method based on the median- ulnar sensory latency difference derived by both methods in 80 subjects and compared the number of minimal CTS cases identified by the two methods. Results Limits of agreement ranged from −0.23 to 0.29 ms. A significantly higher proportion of subjects with minimal CTS (only detectable by using the comparison test) was found using the simultaneous method (n = 8 and 2, respectively; p = 0.03). Conclusion The two methods have a poor to moderate agreement as indicated by the range of the limits of agreement (0.5 ms). Significance Even small methodological changes to the ring-finger test can lead to results with different clinical meaning in the same individual and one should be aware of which method was used when interpreting results.
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Affiliation(s)
- Daniel Gregor Schulze
- Department of Neurology, Oslo University Hospital, Oslo, Norway.,Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway.,Research and Communication Unit for Musculoskeletal Health, Oslo University Hospital, Norway
| | | | - Milada Cvancarova Småstuen
- Oslo and Akershus University College, Oslo, Norway.,Institute of Basic Medical Sciences, University of Oslo, Oslo, Norway
| | - Thomas Clemm
- National Institute of Occupational Health, Oslo, Norway
| | - Margreth Grotle
- Oslo and Akershus University College, Oslo, Norway.,Research and Communication Unit for Musculoskeletal Health, Oslo University Hospital, Norway
| | - John Anker Zwart
- Department of Neurology, Oslo University Hospital, Oslo, Norway.,Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway.,Research and Communication Unit for Musculoskeletal Health, Oslo University Hospital, Norway
| | - Kristian Bernhard Nilsen
- Department of Neurology, Oslo University Hospital, Oslo, Norway.,Department of Neuromedicine and Movement Science, Norwegian University of Science and Technology, Trondheim, Norway.,Research and Communication Unit for Musculoskeletal Health, Oslo University Hospital, Norway
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13
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Lu YT, Haase SC, Chung TT, Chung KC, Sears ED. The Impact of Pre-Referral Advanced Diagnostic Testing on Wait Time to See a Hand Surgeon for Common Upper-Extremity Conditions. J Hand Surg Am 2019; 44:1013-1020.e2. [PMID: 31677910 PMCID: PMC7429450 DOI: 10.1016/j.jhsa.2019.09.009] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/15/2018] [Revised: 07/09/2019] [Accepted: 09/25/2019] [Indexed: 02/02/2023]
Abstract
PURPOSE We sought to evaluate the use of pre- and post-referral advanced diagnostic testing among patients with 3 common hand conditions, rates of subsequent tests, and differences in wait time to see a hand surgeon. METHODS We analyzed a single academic tertiary care center administrative database of encounters from 2006 to 2015 to identify adult patients who were referred to a hand surgeon for 3 conditions (carpal tunnel syndrome [CTS], soft tissue masses [STM], and joint pain [JP]). We recorded patient characteristics, use and timing of diagnostic tests, and wait time for the initial hand surgeon evaluation. RESULTS Among patients who received advanced diagnostic tests before the surgeon evaluation, CTS patients had the highest rate of receiving pre-referral advanced testing (53.4%) compared with JP (10.6% ) and STM patients (5.8%). The CTS patients had the highest rates of repeat testing (19.5%) compared with patients with JP (1.4%) and STM (0%). Across all 3 conditions, patients who received pre-referral advanced testing waited an additional 19 to 94 days to see a surgeon, compared with patients who received only post-referral testing or no testing. CONCLUSIONS Use of pre-referral advanced diagnostic tests is associated with an increased time to see a hand surgeon for common hand conditions. CLINICAL RELEVANCE Hand surgeons should have a role in identifying patients who do or do not benefit from advanced testing before referral to ensure that tests ordered before consultation are useful to both patients and treating surgeons.
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Affiliation(s)
- Yu-Ting Lu
- Department of Surgery, Section of Plastic Surgery, Michigan Medicine
| | - Steven C. Haase
- Department of Surgery, Section of Plastic Surgery, Michigan Medicine
| | - Ting-Ting Chung
- Center for Big Data Analytics and Statistics and Division of Rheumatology, Allergy and Immunology, Chang-Gung Memorial Hospital, Taoyuan, Taiwan
| | - Kevin C. Chung
- Department of Surgery, Section of Plastic Surgery, Michigan Medicine,Institute of Healthcare Policy and Innovation, University of Michigan, Ann Arbor, MI
| | - Erika D. Sears
- Department of Surgery, Section of Plastic Surgery, Michigan Medicine,Institute of Healthcare Policy and Innovation, University of Michigan, Ann Arbor, MI,Veterans Affairs Center for Clinical Management Research, VA Ann Arbor Healthcare System, Ann Arbor, MI
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14
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De Kleermaeker FGCM, Meulstee J, Verhagen WIM. The controversy of the normal values of ultrasonography in carpal tunnel syndrome: diagnostic accuracy of wrist-dependent CSA revisited. Neurol Sci 2019; 40:1041-1047. [DOI: 10.1007/s10072-019-03756-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2018] [Accepted: 02/06/2019] [Indexed: 12/15/2022]
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15
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Gilveg AS, Parfenov VA, Evzikov GY. [Problems of the diagnosis and treatment of compression neuropathy of the median nerve: an analysis of typical medical practice]. Zh Nevrol Psikhiatr Im S S Korsakova 2018; 118:30-34. [PMID: 30585601 DOI: 10.17116/jnevro201811811130] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
AIM An analysis of typical medical errors in the diagnosis and treatment of compression neuropathy of the median nerve at the level of the wrist (carpal tunnel syndrome - CTS). MATERIAL AND METHODS Previous diagnoses and treatment of 85 patients with CTS (14 men and 71 women), aged from 36 to 84 years (middle age 62±10.6 years), who underwent surgery in our clinics were evaluated. RESULTS The wrong diagnosis was made in most of patients (60%). The osteochondrosis of cervical spine (45.8%) and diabetic polyneuropathy (5.8%) were the most common mistaken diagnoses. Proper neurophysiological measurements using the Phalen's test and Tinel's sign were not performed in the majority of patients. Magnetic resonance imaging (MRI) of the cervical spine was often unreasonably made, the electroneuromyography was not used. Nonsteroidal anti-inflammatory drugs (NSAIDs), vitamin B group were improperly prescribed to the patients diagnosed with CTS. Local corticosteroids injections were not prescribed to most of patients, immobilization of the wrist was not recommended at the early stage of disease and decompressive surgery at the advanced stage of disease. Clinical observation of the patient with long period of misdiagnosing is presented. Despite the long-standing history of CTS, surgical decompression led to regression of symptoms and complete professional rehabilitation. CONCLUSION It is necessary to inform physicians about manifestations, diagnostic criteria and effective methods of treatment of CTS.
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Affiliation(s)
- A S Gilveg
- Federal State Autonomous Educational Institution of Higher Education I.M. Sechenov First Moscow StateMedical University of the Ministry of Health of the Russian Federation, Moscow, Russia
| | - V A Parfenov
- Federal State Autonomous Educational Institution of Higher Education I.M. Sechenov First Moscow StateMedical University of the Ministry of Health of the Russian Federation, Moscow, Russia
| | - G Yu Evzikov
- Federal State Autonomous Educational Institution of Higher Education I.M. Sechenov First Moscow StateMedical University of the Ministry of Health of the Russian Federation, Moscow, Russia
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16
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Scratch Collapse Test for Carpal Tunnel Syndrome: A Systematic Review and Meta-analysis. PLASTIC AND RECONSTRUCTIVE SURGERY-GLOBAL OPEN 2018; 6:e1933. [PMID: 30349795 PMCID: PMC6191240 DOI: 10.1097/gox.0000000000001933] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2018] [Accepted: 07/13/2018] [Indexed: 02/03/2023]
Abstract
Background: Despite the fact that carpal tunnel syndrome (CTS) is the most common entrapment neuropathy, the diagnostic accuracy of clinical screening examinations for CTS is controversial. The scratch collapse test (SCT) is a novel test that may be of diagnostic advantage. The purpose of our study was to determine the diagnostic accuracy of the SCT for CTS. Methods: A literature search was performed using PubMed (1966 to April 2018); Ovid MEDLINE (1966 to April 2018); EMBASE (1988 to April 2018); and Cochrane Central Register of Controlled Trials (The Cochrane Library, to April 2018). We examined the studies for the pooled sensitivity, specificity, and likelihood ratios of the SCT. This review has been registered with PROSPERO (CRD42018077115). Results: The literature search generated 13 unique articles. Seven articles were included for full text screening and 3 articles met our inclusion criteria, all of which were level II evidence with low risk of bias (165 patients). Pooled sensitivities, specificities, positive likelihood ratio, and negative likelihood ratios were 0.32 [95% CI (0.24–0.41)], 0.62 [95% CI (0.45–0.78)], 0.75 [95% CI (0.33–1.67)], and 1.03 [95% CI (0.61–1.74)], respectively. The calculated area under the summary receiver operating characteristic (AUSROC) curve was 0.25, indicating a low diagnostic accuracy. Conclusion: The SCT has poor sensitivity; however, it is moderately specific. Based on the current literature and their variable quality of the evidence, we conclude that the SCT is not an adequate screening test for detecting CTS.
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17
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Mohamed FI, Kamel SR, Hafez AE. Usefulness of neuromuscular ultrasound in the diagnosis of idiopathic carpal tunnel syndrome. EGYPTIAN RHEUMATOLOGY AND REHABILITATION 2018. [DOI: 10.4103/err.err_22_17] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
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18
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Hegab SE, Senna MK, Hafez EA, Farag SEA. Toward sensitive and specific electrodiagnostic techniques in early carpal tunnel syndrome. EGYPTIAN RHEUMATOLOGY AND REHABILITATION 2018. [DOI: 10.4103/err.err_41_17] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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19
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Sartorio F, Vercelli S, Bravini E, Zanetta A, Bargeri S, Pisano F, Ferriero G. Assessment of dexterity and diagnostic accuracy of the Functional Dexterity Test in patients with carpal tunnel syndrome. LA MEDICINA DEL LAVORO 2018; 109:31-39. [PMID: 29405175 PMCID: PMC7682158 DOI: 10.23749/mdl.v109i1.6036] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/15/2016] [Revised: 12/19/2017] [Accepted: 12/20/2017] [Indexed: 11/25/2022]
Abstract
BACKGROUND The diagnosis of carpal tunnel syndrome (STC) is centered on the symptoms. However, patients also show an impairment of sensorimotor functions, but the relationship between STC and manual dexterity has never been investigated. OBJECTIVES To analyze the correlation between manual dexterity and severity of the STC. Another objective was the diagnostic accuracy of the clinical battery including provocative tests (Phalen, Tinel) and Functional Dexterity Test (FDT). METHODS A sample of 80 subjects with suspected STC was subdivided into 4 groups based on EMG (severe/extreme-GrA, moderate-GrB, mild/minimal-GrC, negative-GrD) and evaluated in blind by Phalen, Tinel and FDT. The relationship between the FDT and the allocation of subjects was investigated by Spearman's rho, while the groups were compared with univariate ANOVA and Tukey's post hoc analysis. Diagnostic accuracy of the clinical battery was expressed by sensitivity, specificity, and likelihood ratios (LR). RESULTS A moderate (r=0.48, p minor of 0.001) correlation was found between FDT and the 4 groups. ANOVA has returned a significant difference between GrA vs. all others and between GrB vs. GrD. The battery showed a sensitivity, specificity, positive likelihood ratio (LR+) and negative likelihood ratio (LR-) of 70%, 94%, 11.98 and 0.31 respectively. CONCLUSIONS The results of this study supported the hypothesis that STC patients also have a dexterity impairment. The FDT was able to discriminate between three levels of severity (negative, mild to moderate, severe to extreme), maintaining a good level of diagnostic accuracy in addition to provocative tests.
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20
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Sears ED, Lu YT, Wood SM, Nasser JS, Hayward RA, Chung KC, Kerr EA. Diagnostic Testing Requested Before Surgical Evaluation for Carpal Tunnel Syndrome. J Hand Surg Am 2017; 42:623-629.e1. [PMID: 28666673 PMCID: PMC5545070 DOI: 10.1016/j.jhsa.2017.05.006] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/30/2016] [Revised: 05/01/2017] [Accepted: 05/05/2017] [Indexed: 02/02/2023]
Abstract
PURPOSE We sought to evaluate how often physicians who perform carpal tunnel release in the state of Michigan routinely request electrodiagnostic studies (EDS) or other diagnostic tests prior to an initial consultation and whether provider or practice characteristics had an influence on requirements for preconsultation diagnostic tests. METHODS Through online data sources, we identified 356 providers in 261 practices throughout the state of Michigan with profiles confirming hand surgery practice or surgical treatment of carpal tunnel syndrome (CTS). We recorded American Society for Surgery of the Hand (ASSH) membership, teaching facility status, practice size, and primary specialty for each provider. Using a standardized telephone script, 219 providers were contacted by telephone to determine whether any diagnostic tests were needed before an appointment. Using multivariable logistic regression, we evaluated the relationship between the requirement for preconsultation testing and surgeon and practice characteristics. RESULTS Among the 134 providers who were confirmed to perform carpal tunnel release, 57% (n = 76) required and 9% (n = 12) recommended a diagnostic test prior to the initial consultation. Of the 88 physicians who required/recommended testing, 85% (n = 75) requested EDS, 22% (n = 19) requested magnetic resonance imaging, 13% (n = 11) requested a computed tomography scan, and 9% (n = 8) requested an x-ray. Patients were asked to have multiple studies by 19 (22%) of the 88 surgeons who requested/recommended testing. In the multivariable analysis, ASSH membership, size of practice, and teaching facility status did not have a significant relationship with the requirement for preconsultation testing. CONCLUSIONS Most surgeons who treat CTS in the state of Michigan routinely request EDS before evaluation, rather than reserving the test for cases in which the diagnosis is unclear. CLINICAL RELEVANCE In the quest for high-value care, providers must consider whether the benefit of diagnostic tests for CTS likely outweighs the costs, inconvenience, and potential for treatment delay.
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Affiliation(s)
- Erika D. Sears
- Department of Surgery, Section of Plastic Surgery, University of Michigan Health System, Ann Arbor, MI,Veterans Affairs Center for Clinical Management Research, VA Ann Arbor Healthcare System, Ann Arbor, MI,Institute for Healthcare Policy and Innovation, University of Michigan, Ann Arbor, MI
| | - Yu-Ting Lu
- Department of Surgery, Section of Plastic Surgery, University of Michigan Health System, Ann Arbor, MI
| | - Shannon M. Wood
- Department of Surgery, Section of Plastic Surgery, University of Michigan Health System, Ann Arbor, MI
| | - Jacob S. Nasser
- Department of Surgery, Section of Plastic Surgery, University of Michigan Health System, Ann Arbor, MI
| | - Rodney A. Hayward
- Veterans Affairs Center for Clinical Management Research, VA Ann Arbor Healthcare System, Ann Arbor, MI,Institute for Healthcare Policy and Innovation, University of Michigan, Ann Arbor, MI,Department of Internal Medicine, University of Michigan Health System, Ann Arbor, MI
| | - Kevin C. Chung
- Department of Surgery, Section of Plastic Surgery, University of Michigan Health System, Ann Arbor, MI,Institute for Healthcare Policy and Innovation, University of Michigan, Ann Arbor, MI
| | - Eve A. Kerr
- Veterans Affairs Center for Clinical Management Research, VA Ann Arbor Healthcare System, Ann Arbor, MI,Institute for Healthcare Policy and Innovation, University of Michigan, Ann Arbor, MI,Department of Internal Medicine, University of Michigan Health System, Ann Arbor, MI
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21
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Hermiz SJ, Kalliainen LK. Evidence-Based Medicine: Current Evidence in the Diagnosis and Management of Carpal Tunnel Syndrome. Plast Reconstr Surg 2017; 140:120e-129e. [PMID: 28654613 DOI: 10.1097/prs.0000000000003477] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
LEARNING OBJECTIVES After studying this article, the participant should be able to: 1. Create a safe and effective plan for management of carpal tunnel syndrome. 2. Support his or her rationale for the use of diagnostic tests. 3. Discuss elements of management that have been controversial, including anesthesia, the use of a tourniquet, postoperative pain control, and cost of care. SUMMARY This is the fourth MOC-PS CME article on carpal tunnel syndrome. Each of the prior three has had a slightly different focus, and the reader is invited to review all to generate a comprehensive view of the management of this common, and often controversial, topic. The operative goal-to release the transverse carpal ligament-is straightforward: diagnosis, cause, and technique have generated more vibrant discussions.
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Affiliation(s)
- Steven J Hermiz
- Chapel Hill, N.C.,From the Division of Plastic Surgery, University of North Carolina
| | - Loree K Kalliainen
- Chapel Hill, N.C.,From the Division of Plastic Surgery, University of North Carolina
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22
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Aseem F, Williams JW, Walker FO, Cartwright MS. Neuromuscular ultrasound in patients with carpal tunnel syndrome and normal nerve conduction studies. Muscle Nerve 2016; 55:913-915. [PMID: 27859374 DOI: 10.1002/mus.25462] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/06/2016] [Indexed: 12/24/2022]
Abstract
INTRODUCTION Nerve conduction studies (NCS) are sensitive for carpal tunnel syndrome (CTS), but a small proportion of patients with clinical CTS have normal NCS. This retrospective study was designed to assess the neuromuscular ultrasound findings in a group of CTS patients. METHODS The electronic medical record was reviewed by a neurologist to identify patients who had a diagnosis of CTS with normal NCS, including either mixed median-ulnar comparison or transcarpal sensory studies, and complete neuromuscular ultrasound evaluation for CTS. RESULTS Fourteen individuals (22 wrists) met all criteria. A total of 92.3% had median nerve cross-sectional area enlargement at the wrist (mean 16.3 mm2 ), 100% had increased wrist-to-forearm median nerve area ratio (mean 2.4), 82.4% had decreased median nerve echogenicity, 75.0% had decreased median nerve mobility, and 7.1% had increased median nerve vascularity. CONCLUSION A large proportion of patients with clinical CTS but normal NCS have abnormal neuromuscular ultrasound findings. Muscle Nerve 55: 913-915, 2017.
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Affiliation(s)
- Fazila Aseem
- Wake Forest School of Medicine, Winston-Salem, North Carolina, USA
| | - Jessica W Williams
- Department of Neurology, Wake Forest School of Medicine, Main Floor, Reynolds Tower, Winston-Salem, North Carolina, 27157, USA
| | - Francis O Walker
- Department of Neurology, Wake Forest School of Medicine, Main Floor, Reynolds Tower, Winston-Salem, North Carolina, 27157, USA
| | - Michael S Cartwright
- Department of Neurology, Wake Forest School of Medicine, Main Floor, Reynolds Tower, Winston-Salem, North Carolina, 27157, USA
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23
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Chen YT, Williams L, Zak MJ, Fredericson M. Review of Ultrasonography in the Diagnosis of Carpal Tunnel Syndrome and a Proposed Scanning Protocol. JOURNAL OF ULTRASOUND IN MEDICINE : OFFICIAL JOURNAL OF THE AMERICAN INSTITUTE OF ULTRASOUND IN MEDICINE 2016; 35:2311-2324. [PMID: 27629754 DOI: 10.7863/ultra.15.12014] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2015] [Accepted: 02/21/2016] [Indexed: 06/06/2023]
Abstract
Carpal tunnel syndrome is the most common peripheral compressive neuropathy. Ultrasonography (US) is an emerging technology that can be used in the diagnosis of carpal tunnel syndrome. Although the cross-sectional area is the most studied and validated measurement for carpal tunnel syndrome, there is no standardized neuromuscular US scanning protocol. We review the most studied neuromuscular US characteristics and protocols in the evaluation of carpal tunnel syndrome and propose a standardized protocol for evaluating carpal tunnel syndrome with neuromuscular US based on current literature.
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Affiliation(s)
- Yin-Ting Chen
- Department of Rehabilitation, Walter Reed National Military Medical Center, Bethesda, Maryland USA
| | - Lisa Williams
- Division of Physical Medicine and Rehabilitation, Department of Orthopedic Surgery, Stanford University, Stanford, California USA
| | - Matthew J Zak
- Department of Rehabilitation, Walter Reed National Military Medical Center, Bethesda, Maryland USA
| | - Michael Fredericson
- Division of Physical Medicine and Rehabilitation, Department of Orthopedic Surgery, Stanford University, Stanford, California USA
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25
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Abstract
Disorders of peripheral nerve have been traditionally diagnosed and monitored using clinical and electrodiagnostic approaches. The last two decades have seen rapid development of both magnetic resonance imaging (MRI) and ultrasound imaging of peripheral nerve, such that these imaging modalities are increasingly invaluable to the diagnosis of patients with peripheral nerve disorders. Peripheral nerve imaging provides information which is supplementary to clinical and electrodiagnostic diagnosis. Both MRI and ultrasound have particular benefits in specific clinical circumstances and can be considered as complementary techniques. These technologic developments in peripheral nerve imaging will usher in an era of multimodality assessment of peripheral nerve disorders, with clinical evaluations supported by anatomic information from imaging, and functional information from electrodiagnostic studies. Such a multimodality approach will improve the accuracy and efficiency of patient care.
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Affiliation(s)
- Neil G Simon
- St Vincent's Clinical School, University of New South Wales, Sydney, Australia
| | - Jason Talbott
- Department of Radiology, University of California, San Francisco, CA, USA
| | - Cynthia T Chin
- Department of Radiology, University of California, San Francisco, CA, USA
| | - Michel Kliot
- Department of Neurological Surgery, Northwestern Feinberg School of Medicine, Chicago, IL, USA.
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Stavros K, Paik D, Motiwala R, Weinberger J, Zhou L, Shin S. Median nerve penetration by a persistent median artery and vein mimicking carpal tunnel syndrome. Muscle Nerve 2015; 53:485-7. [PMID: 26565656 DOI: 10.1002/mus.24974] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/11/2015] [Indexed: 01/02/2023]
Abstract
INTRODUCTION Carpal tunnel syndrome (CTS) is a common clinical syndrome seen in the outpatient setting that is easily confirmed by electrodiagnostic testing. METHODS We describe the case of a patient who presented with the classic symptoms and neurological examination for CTS, but had a normal nerve conduction study and electromyogram. RESULTS Neuromuscular ultrasound of the median nerve on the symptomatic side revealed penetration of the nerve by a persistent median artery and vein in the mid-forearm, with a positive sonographic Tinel sign over this spot. This finding is an anatomical variation that has been described sparingly in the literature, mostly in cadavers. It has not been reported previously to be a mimic of CTS. CONCLUSIONS This case demonstrates the diagnostic utility of neuromuscular ultrasound and the importance of considering an anatomical variation involving the median nerve in the differential diagnosis of CTS.
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Affiliation(s)
- Kara Stavros
- Department of Neurology, Warren Alpert Medical School of Brown University, Providence, Rhode island, USA
| | - David Paik
- Department of Radiology, Morristown Medical Center, Morristown, New Jersey, USA
| | - Rajeev Motiwala
- Department of Neurology, Icahn School of Medicine at Mount Sinai, 1468 Madison Avenue, Annenberg Second Floor, Box 1052, New York, New York, 10029, USA
| | - Jesse Weinberger
- Department of Neurology, Icahn School of Medicine at Mount Sinai, 1468 Madison Avenue, Annenberg Second Floor, Box 1052, New York, New York, 10029, USA
| | - Lan Zhou
- Department of Neurology, Icahn School of Medicine at Mount Sinai, 1468 Madison Avenue, Annenberg Second Floor, Box 1052, New York, New York, 10029, USA
| | - Susan Shin
- Department of Neurology, Icahn School of Medicine at Mount Sinai, 1468 Madison Avenue, Annenberg Second Floor, Box 1052, New York, New York, 10029, USA
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Henderson REA, Walker BF, Young KJ. The accuracy of diagnostic ultrasound imaging for musculoskeletal soft tissue pathology of the extremities: a comprehensive review of the literature. Chiropr Man Therap 2015; 23:31. [PMID: 26543553 PMCID: PMC4634582 DOI: 10.1186/s12998-015-0076-5] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2015] [Accepted: 10/16/2015] [Indexed: 12/17/2022] Open
Abstract
Musculoskeletal diagnostic ultrasound imaging (MSK-DUSI) has been growing outside the traditional radiology speciality. Increased use of this technology has been reported in several healthcare settings, however an apparent gap in the knowledge of the accuracy of this diagnostic technology indicated a review was warranted. We undertook a structured review of the literature to assess the accuracy of MSK-DUSI for the diagnosis of musculoskeletal soft tissue pathology of the extremities. An electronic search of the National Library of Medicine’s PubMed database (1972 to mid-2014) was conducted. All relevant systematic reviews of diagnostic studies, all diagnostic studies published after the date of the latest systematic reviews and relevant diagnostic studies outside the scope the systematic reviews that directly compared the accuracy of MSK-DUSI (the index test) to an appropriate reference standard for the target condition were included. A fundamental appraisal of the methodological quality of studies was completed. The individual sensitivity, specificity and likelihood ratio data were extracted and entered into diagnostic accuracy tables. A total of 207 individual studies were included. The results show that MSK-DUSI has acceptable diagnostic accuracy for a wide spectrum of musculoskeletal conditions of the extremities. However, there is a lack of high quality prospective experimental studies in this area and as such clinicians should interpret the results with some caution due to the potential for overestimation of diagnostic accuracy.
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Affiliation(s)
- Rogan E A Henderson
- Private Practice of Chiropractic, Spearwood, WA Australia ; 253 Winterfold Road, Coolbellup, 6163 WA Australia
| | - Bruce F Walker
- Associate Professor, Discipline of Chiropractic, School of Health Professions, Murdoch University, Murdoch, WA Australia
| | - Kenneth J Young
- Senior Lecturer, Discipline of Chiropractic, School of Health Professions, Murdoch University, Murdoch, WA Australia
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Accuracy of MRI in diagnosing peripheral nerve disease: a systematic review of the literature. AJR Am J Roentgenol 2015; 203:1303-9. [PMID: 25415709 DOI: 10.2214/ajr.13.12403] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
OBJECTIVE MRI is increasingly being used to evaluate extracranial peripheral nerve disease in clinical practice. The objective of this study was to systematically review the accuracy of MRI in distinguishing normal from abnormal extracranial peripheral nerves. CONCLUSION There is significant heterogeneity between studies investigating the accuracy of MRI. Studies have shown that nerve T2-weighted or STIR hyperintensity, nerve enlargement, and nerve flattening are associated with peripheral nerve disease.
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Kim DH, Cho BM, Oh SM, Park DS, Park SH. Delayed improvement after endoscopic carpal tunnel release. J Korean Neurosurg Soc 2014; 56:390-4. [PMID: 25535515 PMCID: PMC4272996 DOI: 10.3340/jkns.2014.56.5.390] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2014] [Revised: 05/19/2014] [Accepted: 06/29/2014] [Indexed: 12/31/2022] Open
Abstract
OBJECTIVE In most patients with carpal tunnel syndrome (CTS), pain and/or paresthesia disappeared or decreased in a month after endoscopic carpal tunnel release (ECTR). However, subpopulation of patients showed delayed improvement following ECTR. We analyzed the delayed improvement hands to investigate the characteristics of those patients and to determine the predictable factors of delayed improvement. METHODS Single-portal ECTRs were performed in 1194 hands of 793 CTS patients from 2002 to 2011. Five-hundred seventy hands with minimal 1-year postoperative follow-up were included. We divided the 545 satisfied hands into early (group A) and delayed (group B) groups according to improvement period of 1 month. Demographic data, clinical severity and electrodiagnostic abnormality were compared between groups. RESULTS Group A included 510 hands and group B included 35 hands. In group B, 11 hands improved in 2 months, 15 hands in 3 months and 9 hands in 6 months, respectively. In group A/B, according to clinical severity, 60/1 hands were graded to I, 345/24 hands to II, 105/10 hands to III. In group A/B, based on electrodiagnostic abnormality, 57/3 hands were classified to mild, 221/11 hands to moderate and 222/21 hands to severe group. Statistical analysis between groups did not reach significance but electrodiagnostic or clinical severity had a tendency to affect the delayed response. CONCLUSION It is difficult to predict the factors contributing to postoperatively-delayed response in subpopulation of CTS patients. However, we recommend that postoperative observation for at least 6 months is necessary in patients without symptomatic improvement.
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Affiliation(s)
- Dong-Ho Kim
- Department of Neurosurgry, Kangdong Sacred Heart Hospital, Hallym University College of Medicine, Seoul, Korea
| | - Byung-Moon Cho
- Department of Neurosurgry, Kangdong Sacred Heart Hospital, Hallym University College of Medicine, Seoul, Korea
| | - Sae-Moon Oh
- Department of Neurosurgry, Kangdong Sacred Heart Hospital, Hallym University College of Medicine, Seoul, Korea
| | - Dong-Sik Park
- Department of Rehabilitation Medicine, Kangdong Sacred Heart Hospital, Hallym University College of Medicine, Seoul, Korea
| | - Se-Hyuck Park
- Department of Neurosurgry, Kangdong Sacred Heart Hospital, Hallym University College of Medicine, Seoul, Korea
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Duckworth AD, Jenkins PJ, McEachan JE. Diagnosing carpal tunnel syndrome. J Hand Surg Am 2014; 39:1403-7. [PMID: 24818965 DOI: 10.1016/j.jhsa.2014.03.039] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/26/2014] [Accepted: 03/30/2014] [Indexed: 02/02/2023]
Affiliation(s)
- Andrew D Duckworth
- Department of Orthopaedic Surgery, Queen Margaret Hospital, Fife, United Kingdom; Department of Orthopaedic Surgery, Glasgow Royal Infirmary, Glasgow, United Kingdom.
| | - Paul J Jenkins
- Department of Orthopaedic Surgery, Queen Margaret Hospital, Fife, United Kingdom; Department of Orthopaedic Surgery, Glasgow Royal Infirmary, Glasgow, United Kingdom
| | - Jane E McEachan
- Department of Orthopaedic Surgery, Queen Margaret Hospital, Fife, United Kingdom; Department of Orthopaedic Surgery, Glasgow Royal Infirmary, Glasgow, United Kingdom
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Abstract
LEARNING OBJECTIVES After studying this article, the participant should be able to: (1) Describe and apply the best current high-level evidence in carpal tunnel syndrome. (2) Design a treatment plan to offer tourniquet-free, sedation-free local anesthesia for patients who wish it or who are at high risk with sedation. (3) Describe the evidence and outcomes as they relate to splinting carpal tunnel patients after surgery. SUMMARY This is the third Maintenance of Certification article on carpal tunnel syndrome. Hentz and Lalonde summarized the best literature in 2008 in the first article. The second article, by Shores and Lee, presented the best evidence regarding assessment, surgical treatment, and outcomes from the literature published between 1999 and 2009. In this article, the author has concentrated on topics not covered in depth in the first two articles and provides an update of the highest level evidence on important topics from 2009 to 2013. Although there is some Level IV and V evidence cited in this article, most is Level I, II, and III.
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Bulut HT, Yildirim A, Ekmekci B, Gunbey HP. The diagnostic and grading value of diffusion tensor imaging in patients with carpal tunnel syndrome. Acad Radiol 2014; 21:767-73. [PMID: 24726891 DOI: 10.1016/j.acra.2014.02.009] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2013] [Revised: 02/06/2014] [Accepted: 02/07/2014] [Indexed: 11/16/2022]
Abstract
RATIONALE AND OBJECTIVES In this study, we investigated the diagnostic and grading value of diffusion tensor imaging (DTI) in patients with carpal tunnel syndrome (CTS). MATERIALS AND METHODS Of the 120 subjects included in the present study, 72 were in the CTS group and 48 were in the healthy control group. In addition, the patients with CTS were further divided into three subgroups based on severity (mild, moderate, and severe) according to electrophysiological studies (EPS). DTI-derived parameters (fractional anisotropy [FA] and apparent diffusion coefficient [ADC]) were evaluated at four median nerve levels. The mean FA and ADC values of the CTS groups and healthy controls were compared separately. Correlations and possible relationships between DTI parameters and EPS results were analyzed. Receiver operating characteristics analysis was used to calculate the FA and ADC cutoff values for CTS diagnosis and grading. RESULTS Statistically significant differences were observed in mean FA and ADC between the normal and mild, mild and moderate, and moderate and severe subgroups. Significant correlations were found between DTI parameters and EPS measurements based on severity. FA and ADC threshold values, as well as the sensitivity and specificity levels, for diagnosing and grading CTS were determined. CONCLUSIONS DTI parameters can provide helpful information for CTS. The correlations of FA and ADC measurements versus EPS measurements based on severity were significant. Moreover, FA and ADC threshold values were sufficient for the diagnosis and grading of CTS.
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Affiliation(s)
- Haci Taner Bulut
- Department of Radiology, Medical Faculty of Adiyaman University, Adiyaman, 02100 Turkey.
| | - Adem Yildirim
- Department of Physical Medicine and Rehabilitation, Medical Faculty of Adiyaman University, Adiyaman, 02100 Turkey
| | - Burcu Ekmekci
- Department of Neurology, Medical Faculty of Adiyaman University, Adiyaman, 02100 Turkey
| | - Hediye Pinar Gunbey
- Department of Radiology, Samsun Education and Research Hospital, Samsun, Turkey
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Kim MK, Jeon HJ, Park SH, Park DS, Nam HS. Value of ultrasonography in the diagnosis of carpal tunnel syndrome: correlation with electrophysiological abnormalities and clinical severity. J Korean Neurosurg Soc 2014; 55:78-82. [PMID: 24653800 PMCID: PMC3958577 DOI: 10.3340/jkns.2014.55.2.78] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2013] [Revised: 12/18/2013] [Accepted: 01/15/2014] [Indexed: 11/27/2022] Open
Abstract
OBJECTIVE To investigate a diagnostic value of ultrasonography in carpal tunnel syndrome (CTS) patients and to evaluate a correlation of sonographic measurements with the degree of electrodiagnostic abnormalities and clinical severity. METHODS Two-hundred-forty-six symptomatic hands in 135 patients and 30 asymptomatic hands in 19 healthy individuals as control group were included. In ultrasonographic study, we measured the cross-sectional area (CSA) and flattening ratio (FR) of the median nerve at the pisiform as well as palmar bowing (PB) of the flexor retinaculum. Sensitivity and specificity of ultrasonographic measurements were evaluated and ultrasonographic data from the symptomatic and control hands were compared to the grade of electrodiagnostic and clinical severity. RESULTS The mean CSA was 13.7±4.2 mm(2) in symptomatic hands and 7.9±1.3 mm(2) in asymptomatic hands. The mean FR was 4.2±1.0 in symptomatic hands and 3.4±0.4 in asymptomatic hands. The mean PB was 3.5±0.5 mm in symptomatic hands and 2.6±0.3 mm in asymptomatic hands. Statistical analysis showed differences of the mean CSA, FR and PB between groups were significant. A cut-off value of 10 mm(2) for the mean CSA was found to be the upper limit for normal value. Both the mean CSA and PB are correlated with the grade of electrophysiological abnormalities and clinical severity, respectively. CONCLUSION Ultrasographic measurement of the CSA and PB is helpful to diagnose CTS as a non-invasive and an alternative modality for the evaluation of CTS. In addition, ultrasonography also provides a reliable correlation with the grade of electrodiagnostic abnormalities and clinical severity.
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Affiliation(s)
- Min-Kyu Kim
- Department of Neurosurgery, Kangdong Sacred Heart Hospital, Hallym University College of Medicine, Seoul, Korea
| | - Hong-Jun Jeon
- Department of Neurosurgery, Kangdong Sacred Heart Hospital, Hallym University College of Medicine, Seoul, Korea
| | - Se-Hyuck Park
- Department of Neurosurgery, Kangdong Sacred Heart Hospital, Hallym University College of Medicine, Seoul, Korea
| | - Dong-Sik Park
- Department of Rehabilitation Medicine, Kangdong Sacred Heart Hospital, Hallym University College of Medicine, Seoul, Korea
| | - Hee-Seung Nam
- Department of Rehabilitation Medicine, Kangdong Sacred Heart Hospital, Hallym University College of Medicine, Seoul, Korea
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Ustün N, Tok F, Yagz AE, Kizil N, Korkmaz I, Karazincir S, Okuyucu E, Turhanoglu AD. Ultrasound-guided vs. blind steroid injections in carpal tunnel syndrome: A single-blind randomized prospective study. Am J Phys Med Rehabil 2013; 92:999-1004. [PMID: 23811617 DOI: 10.1097/phm.0b013e31829b4d72] [Citation(s) in RCA: 72] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
OBJECTIVE The aim of this study was to compare the efficacy and the safety of ultrasound (US)-guided vs. blind steroid injections in patients with carpal tunnel syndrome (CTS). DESIGN This prospective randomized single-blind clinical trial included 46 patients with CTS (46 affected median nerves). The subjects were randomized-to either the US-guided or the blind injection group-before they received 40 mg of methylprednisolone. They were evaluated using the Boston Carpal Tunnel Questionnaire symptom/function at baseline and at 6 wks and 12 wks after injection, and the side effects were noted. RESULTS The symptom severity and functional status scores improved significantly in both groups at 6 wks after treatment, and these improvements persisted at 12 wks after treatment (all P < 0.05). The improvement in symptom severity scores in the US-guided group at 12 wks was higher than in the palpation-guided group (P < 0.05). Average time to symptom relief was shorter in the US-guided group (P < 0.05). There was no significant difference between the two groups in terms of side effects (P > 0.05). CONCLUSIONS Although both US-guided and blind steroid injections were effective in reducing the symptoms of CTS and improving the function, an earlier onset/better improvement of symptom relief suggests that US-guided steroid injection may be more effective than are blind injections in CTS.
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Affiliation(s)
- Nilgün Ustün
- From the Department of Physical Medicine and Rehabilitation (NU, AEY, NK, ADT), Department of Radiology (IK, SK), and Department of Neurology (EO), Faculty of Medicine, Mustafa Kemal University, Hatay, Turkey; and Physical Medicine and Rehabilitation Clinic, İskenderun Military Hospital, Hatay, Turkey (FT)
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Stoll G, Wilder-Smith E, Bendszus M. Imaging of the peripheral nervous system. HANDBOOK OF CLINICAL NEUROLOGY 2013; 115:137-153. [PMID: 23931778 DOI: 10.1016/b978-0-444-52902-2.00008-4] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
This chapter summarizes progress in the evaluation of peripheral nerve (PN) lesions and disorders by imaging techniques encompassing magnetic resonance imaging (MRI) and nerve ultrasound (US). Due to the radiation exposure and limited sensitivity in soft tissue contrast, computed-tomography (CT) plays no significant role in the diagnostic work-up of PN disorders. MRI and US are complementary techniques for the evaluation of peripheral nerves, each having particular advantages and disadvantages. Nerve injury induces intrinsic MRI signal alterations on T2-weighted sequences in degenerating or demyelinating nerve segments as well as in corresponding muscle groups exhibiting denervation which can be exploited diagnostically. Nerve US is based on changes in the nerve echotexture due to tumor formation or focal enlargement caused by entrapment or inflammation. Both MRI and US provide morphological information on the precise site and extent of nerve injury. While US has the advantage of easy accessibility, providing images with superior spatial resolution at low cost, MRI shows better soft tissue contrast and better image quality for deep-lying nerve structures since imaging is not hindered by bone. Recent advances have remarkably increased spatial resolution of both MRI and US making imaging indispensible for the elucidation of causes of nerve compression, peripheral nerve tumors, and focal inflammatory conditions. Both MRI and US further guide neurosurgical exploration and can simplify treatment. Importantly, imaging can reveal treatable conditions even in the absence of gross electrophysiological alterations, illustrating its increasing role in clinical practice. In experimental settings, novel molecular and cellular MRI contrast agents allow in-vivo assessment of nerve regeneration as well as monitoring of neuroinflammation. Depending on further clinical development, contrast-enhanced MRI has the potential to follow cellular responses over time in vivo and to overcome the current limitations of histological assessment of nerve afflictions. Further advances in contrast-enhanced US has the potential for developing into a tool for the assessment of nerve blood perfusion, paving the way for better assessments of ischemic neuropathies.
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Affiliation(s)
- Guido Stoll
- Department of Neurology, University of Würzburg, Würzburg, Germany.
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Buluc L, Selek O, Aranay Y. Bilateral carpal tunnel syndrome in a 9-year-old boy with acromicric dysplasia. Orthopedics 2012; 35:e1553-5. [PMID: 23027497 DOI: 10.3928/01477447-20120919-29] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Acromicric dysplasia is a skeletal dysplasia that is characterized by short stature, short hands and feet, typical facial dysmorphism, normal mental development, and characteristic hand radiology. Carpal tunnel syndrome may be seen in adults with acromicric dysplasia; however, to the authors' knowledge, it has not been reported in pediatric patients. This article describes a 9-year old boy with bilateral carpal tunnel syndrome and acromicric dysplasia treated operatively. No recurrences occurred during 1 year of postoperative follow-up.Carpal tunnel syndrome is a rare disease in childhood. The etiologic factors of carpal tunnel syndrome include trauma (especially distal radius epiphysealis), overuse, genetic or metabolic disorders, space-occupying lesions in the carpal tunnel, hemophilia, congenital anomalies, adverse effect of growth hormone replacement therapy, and idiopathic carpal tunnel syndrome. Acromicric dysplasia should be considered in the etiology of childhood carpal tunnel syndrome.The surgical outcome of carpal tunnel syndrome is good with early diagnosis and treatment. However, in the case of skeletal dysplasia, the diagnosis of carpal tunnel syndrome may be delayed due to anomalies of the hand and due to the child's difficulty in expressing symptoms. Because of the delay in diagnosis of carpal tunnel syndrome in patients with skeletal dysplasia, the treatment outcomes may not be promising. Electrophysiologic studies should be performed early when the clinical signs are positive.
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Affiliation(s)
- Levent Buluc
- Department of Orthopaedics and Traumatology, Kocaeli University School of Medicine, Kocaeli, Turkey
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Kerasnoudis A. Ultrasound and MRI in carpal tunnel syndrome: the dilemma of simplifying the approach to a complex disease or making complex assessments of a simple problem. J Hand Surg Am 2012; 37:2200-1; author reply 2201. [PMID: 23021183 DOI: 10.1016/j.jhsa.2012.07.041] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/27/2012] [Accepted: 07/31/2012] [Indexed: 02/02/2023]
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Horng YS, Chang HC, Lin KE, Guo YL, Liu DH, Wang JD. Accuracy of ultrasonography and magnetic resonance imaging in diagnosing carpal tunnel syndrome using rest and grasp positions of the hands. J Hand Surg Am 2012; 37:1591-8. [PMID: 22770417 DOI: 10.1016/j.jhsa.2012.04.040] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/20/2011] [Revised: 04/30/2012] [Accepted: 04/30/2012] [Indexed: 02/02/2023]
Abstract
PURPOSE To compare the accuracy of ultrasonography and magnetic resonance imaging (MRI) in diagnosing carpal tunnel syndrome (CTS) in both the rest and grasp positions. We postulated that the diagnostic accuracy could be improved by imaging hands in the grasp position rather than in the rest position. METHODS Fifty patients with CTS and 45 healthy volunteers received a package of questionnaires and had a physical examination and a nerve conduction study. Ultrasonography and MRI images were recorded in both the rest and grasp positions for each participant. RESULTS There were significant differences between the patients and the healthy volunteers regarding patient-reported outcomes, the results of physical examinations, the nerve conduction studies, and the ultrasonography and MRI imaging. The area under the receiver operating characteristic curve of ultrasonography was significantly improved by measuring the bowing of the flexor retinaculum in the grasp position than by measuring that in the rest position. The diagnostic accuracy of ultrasonography was similar to that of MRI when we used a combination of the measurements of the cross-sectional area of the median nerve in the rest position and the bowing of the flexor retinaculum in the grasp position. CONCLUSIONS The accuracies of MRI and ultrasonography for diagnosing CTS were improved by measuring the bowing of the flexor retinaculum in the grasp position. Ultrasonography can be an adequate screening method for CTS if clinicians combine the cross-sectional area of the median nerve in the rest position and the bowing of the flexor retinaculum in the grasp position. TYPE OF STUDY/LEVEL OF EVIDENCE Diagnostic I.
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Affiliation(s)
- Yi-Shiung Horng
- Department of Physical Medicine and Rehabilitation, Buddhist Tzu Chi General Hospital, Taipei Branch, Taiwan
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Thawait GK, Subhawong TK, Thawait SK, Andreisek G, Belzberg AJ, Eng J, Carrino JA, Chhabra A. Magnetic resonance neurography of median neuropathies proximal to the carpal tunnel. Skeletal Radiol 2012; 41:623-32. [PMID: 22426804 DOI: 10.1007/s00256-012-1380-y] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/17/2011] [Revised: 02/13/2012] [Accepted: 02/14/2012] [Indexed: 02/02/2023]
Abstract
This review provides magnetic resonance neurography (MRN) imaging appearances of median neuropathy proximal to the carpal tunnel. Carpal tunnel syndrome (CTS) and its imaging have been extensively described in the literature; however, there is a relative paucity of information on the MR imaging appearances of different pathologies of the median nerve proximal to the carpal tunnel.
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Affiliation(s)
- Gaurav K Thawait
- The Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins Hospital, 601 N. Caroline Street, Baltimore, MD 21287, USA.
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