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Clinical Value Analysis of High-Frequency Ultrasound Combined with Carpal Dorsiflexion Electrophysiological Detection in the Diagnosis of Early Carpal Tunnel Syndrome. BIOMED RESEARCH INTERNATIONAL 2022; 2022:6443013. [PMID: 35392261 PMCID: PMC8983183 DOI: 10.1155/2022/6443013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Revised: 02/13/2022] [Accepted: 03/08/2022] [Indexed: 11/30/2022]
Abstract
Objective To investigate the clinical value of ultrasound combined with electrophysiological examination in the diagnosis of early carpal tunnel syndrome, we aimed to provide a new EMG (electromyography) method for detecting early carpal tunnel syndrome by exploring the wrist back stretch position and electrophysiological examination. Methods For the 82-lateral wrist (case group) of 62 patients with clinical symptoms or confirmed carpal tunnel syndrome and 40 normal healthy patients, neuroelectrophysiological measurements were performed using a Keypoint6.0 EMG evoked potentiometer, measuring each group twice: conventional position (before compression) and dorsal wrist extension position. The measures for each measurement included DSL, DML, and CAMP. Measure sensory conduction first and then measure motor conduction. The measurements were analyzed in a comprehensive comparative analysis. Combined ultrasound examination, the positive rate of combined ultrasound examination and electrophysiological examination was compared, respectively. Results In the carpal tunnel syndrome (CTS) group, the anterior and posterior median nerve DSL was (4.27 ± 0.73) ms and (4.82 ± 0.65) ms, and SNAP was (13.32 ± 13.68) UV and (12.19 ± 11.04) UV; the median nerve (wrist-bunions) DML was (5.29 ± 1.26) ms and (5.54 ± 1.29) ms, and CMAP was (6.44 ± 2.40) mV and (6.21 ± 2.46) mV. Mid-median DSL and DM in the CTS group L were significantly longer than before compression; median nerve SNAP and CMAP were significantly reduced compared with before compression. Conclusion Electrophysiological testing at the dorsal carpal extension position has high diagnostic value in the diagnosis of mild carpal tunnel syndrome. It helps to improve the diagnostic rate of early carpal tunnel syndrome, while providing a more accurate and effective EMG detection of early carpal tunnel syndrome, and combination examination of neuroelectrophysiology and ultrasound can improve the diagnosis rate of compression peripheral nerve diseases and clarify the site, nature, and scope of compression lesions, which is worthy of clinical application.
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Funahasi T, Suzuki T, Hayakawa K, Nakane T, Maeda A, Kuroiwa T, Kawano Y, Iwamoto T, Fujita N. Visualization of the morphological changes in the median nerve after carpal tunnel release using three-dimensional magnetic resonance imaging. Eur Radiol 2022; 32:3016-3023. [DOI: 10.1007/s00330-021-08447-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2021] [Revised: 10/16/2021] [Accepted: 10/27/2021] [Indexed: 11/04/2022]
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Meyers A, Annunziata MJ, Rampazzo A, Bassiri Gharb B. A Systematic Review of the Outcomes of Carpal Ligament Release in Severe Carpal Tunnel Syndrome. J Hand Surg Am 2022; 48:408.e1-408.e18. [PMID: 35058091 DOI: 10.1016/j.jhsa.2021.11.015] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/19/2020] [Revised: 10/12/2021] [Accepted: 11/24/2021] [Indexed: 02/02/2023]
Abstract
PURPOSE Indications for surgical treatment of severe carpal tunnel syndrome (CTS) are controversial. The aim of this study was to review the outcomes reported in the literature of carpal tunnel release in patients with severe CTS. METHODS A systematic review of the outcomes of carpal tunnel release in patients with severe CTS was conducted according to Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. Outcome measures included change in symptoms, sensation (2-point discrimination, light touch), thenar atrophy, strength (power and pinch grip), electrophysiology, median nerve morphology, and patient-reported outcome measures. Outcomes are reported by ranges of the percentage of patients/hands improved in the included studies. RESULTS Thirty-eight papers were selected, representing 2,531 patients and 2,712 hands. Demographic information on age and sex were available for a total of 1,542 patients. Mean age ranged from 49.8 to 83 years and 72% were female. All studies that assessed patient-reported outcome measures before and after surgery reported significant improvements. Complete resolution of paresthesia occurred in 55%-98% of hands across different studies. Resolution of numbness occurred in between 39% and 94% of hands. Pain completely resolved in 64%-100% and weakness in 60%-75% of hands. Two-point discrimination and light touch improved postoperatively. Power grip, key, tripod, index-thumb pulp pinch, and thumb opposition increased. Motor and sensory amplitudes, distal motor latencies, and sensory conduction velocities improved. Patient-reported outcomes indicated symptomatic improvement and reduced disability. CONCLUSIONS Symptomatic improvement following carpal tunnel release in patients with severe CTS can occur. Patients should be counseled about the unpredictability of the outcomes and factors that might affect outcomes. TYPE OF STUDY/LEVEL OF EVIDENCE Therapeutic IV.
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Affiliation(s)
- Abigail Meyers
- Department of Plastic Surgery, Cleveland Clinic, Cleveland, OH
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Kodama A, Kurumadani H, Tanaka T, Shinomiya R, Sunagawa T, Adachi N. Three-dimensional analysis of thumb motion recovery after carpal tunnel release. J Hand Surg Eur Vol 2021; 46:743-748. [PMID: 33969737 DOI: 10.1177/17531934211014700] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
This study quantified recovery of thumb motion in patients with carpal tunnel syndrome after carpal tunnel release using three-dimensional motion analysis with a retroreflective surface-based marker method. Eighteen hands from 14 patients who underwent carpal tunnel release for idiopathic carpal tunnel syndrome were included. The angular movements of the three joints of the thumb, the path length of the thumb tip and the area enclosed by the perimeter path of the thumb tip were measured during circumduction. The range of joint movement, including abduction/adduction of the trapeziometacarpal joint, and flexion/extension of the interphalangeal and metacarpophalangeal joints and the path length of the thumb tips, improved significantly 1 year after surgery. The quantification of thumb kinematics helps to better understand motor dysfunction in carpal tunnel syndrome, assess the severity of the condition and decide on treatment.Level of evidence: IV.
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Affiliation(s)
- Akira Kodama
- Department of Orthopedic Surgery, Hiroshima University, Minami-ku, Hiroshima, Japan
| | - Hiroshi Kurumadani
- Analysis and Control of Upper Extremity Function, Hiroshima University, Minami-ku, Hiroshima, Japan
| | - Teruyasu Tanaka
- Department of Orthopedic Surgery, Hiroshima University, Minami-ku, Hiroshima, Japan
| | - Rikuo Shinomiya
- Department of Orthopedic Surgery, Hiroshima University, Minami-ku, Hiroshima, Japan
| | - Toru Sunagawa
- Analysis and Control of Upper Extremity Function, Hiroshima University, Minami-ku, Hiroshima, Japan
| | - Nobuo Adachi
- Department of Orthopedic Surgery, Hiroshima University, Minami-ku, Hiroshima, Japan
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Abstract
The field of hand surgery continues to evolve in new and exciting directions. Advances in diagnosis and management for common complaints and complex injuries allow higher-level care, while still being cognizant of the cost of health care delivery. Indications and protocols for past paradigm shifts, such as volar locked plating for distal radial fractures, continue to be honed, and the outcomes seen for modern flexor tendon repairs are impressive. Open questions remain, but promising results for scaphoid nonunion surgery and peripheral nerve reconstruction with processed allograft will continue to shed light on these unsolved problems.
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Affiliation(s)
- Travis A Doering
- Department of Orthopaedic Surgery and Biomedical Engineering, University of Tennessee-Campbell Clinic, 1211 Union Avenue, Suite 500, Memphis, TN 38104, USA.
| | - Benjamin M Mauck
- Department of Orthopaedic Surgery and Biomedical Engineering, University of Tennessee-Campbell Clinic, 1211 Union Avenue, Suite 500, Memphis, TN 38104, USA
| | - James H Calandruccio
- Department of Orthopaedic Surgery and Biomedical Engineering, University of Tennessee-Campbell Clinic, 1211 Union Avenue, Suite 500, Memphis, TN 38104, USA
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Cantero-Téllez R, Villafañe J, Garcia-Orza S, Valdes K. Analyzing the functional effects of dynamic and static splints after radial nerve injury. HAND SURGERY & REHABILITATION 2020; 39:564-567. [DOI: 10.1016/j.hansur.2020.05.009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Revised: 05/16/2020] [Accepted: 05/18/2020] [Indexed: 12/28/2022]
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Sasaki Y, Terao T, Saito E, Ohara K, Michishita S, Kato N, Tani S, Murayama Y. Clinical predictors of surgical outcomes of severe carpal tunnel syndrome patients: utility of palmar stimulation in a nerve conduction study. BMC Musculoskelet Disord 2020; 21:725. [PMID: 33160354 PMCID: PMC7648948 DOI: 10.1186/s12891-020-03750-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Accepted: 10/28/2020] [Indexed: 12/26/2022] Open
Abstract
Background Carpal tunnel syndrome is a common peripheral nerve compression disorder. However, there is no established opinion regarding the predictors of symptom improvement after surgery. This study aimed to identify the predictors of surgical outcomes of severe carpal tunnel syndrome patients. Methods In the patients who underwent a carpal tunnel syndrome surgery, we selected the patients who had a preoperative Bland’s classification of grade 5 or 6, and assessed for the changes in Bland’s classification grade before and after surgery. Those who showed improvement from preoperative grades 5–6 to postoperative grades 1–4 comprised the improvement group. In contrast, those who did not show improvement and had postoperative grades 5 or 6 comprised the non-improvement group. In a nerve conduction study, amplitudes of the compound muscle action potential and sensory nerve action potential of the palms were assessed between the improvement and non-improvement groups. Results Among the 60 hands of 46 patients who had a preoperative Bland’s classification of grade 5 or 6, 49 hands of 37 patients comprised the improvement group, and 11 hands of 9 patients comprised the non-improvement group. The amplitudes of the compound muscle action potential and sensory nerve action potential of the palms before surgery were significantly higher in the improvement group. The degree of improvement in Bland’s classification grade was correlated with the degree of clinical symptom improvement. Conclusions Amplitudes of compound muscle action potential and sensory nerve action potential before surgery induced by palmar stimulation can predict improvements in nerve conduction study scores and clinical findings after surgical treatment.
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Affiliation(s)
- Yuichi Sasaki
- Department of Neurosurgery, Atsugi City Hospital, 1-16-36 Mizuhiki, Atsugi-shi, Kanagawa, 243-8588, Japan.
| | - Tohru Terao
- Department of Neurosurgery, Atsugi City Hospital, 1-16-36 Mizuhiki, Atsugi-shi, Kanagawa, 243-8588, Japan
| | - Emiko Saito
- Department of Neurosurgery, Atsugi City Hospital, 1-16-36 Mizuhiki, Atsugi-shi, Kanagawa, 243-8588, Japan
| | - Keiichiro Ohara
- Department of Neurosurgery, Atsugi City Hospital, 1-16-36 Mizuhiki, Atsugi-shi, Kanagawa, 243-8588, Japan
| | - Shotaro Michishita
- Department of Neurosurgery, Atsugi City Hospital, 1-16-36 Mizuhiki, Atsugi-shi, Kanagawa, 243-8588, Japan
| | - Naoki Kato
- Department of Neurosurgery, The Jikei University Hospital, Tokyo, Japan
| | - Satoshi Tani
- Department of Neurosurgery, The Jikei University Hospital, Tokyo, Japan
| | - Yuichi Murayama
- Department of Neurosurgery, The Jikei University Hospital, Tokyo, Japan
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Kuroiwa T, Nimura A, Takahashi Y, Sasaki T, Koyama T, Okawa A, Fujita K. Device Development for Detecting Thumb Opposition Impairment Using Carbon Nanotube-Based Strain Sensors. SENSORS 2020; 20:s20143998. [PMID: 32708416 PMCID: PMC7412202 DOI: 10.3390/s20143998] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Revised: 07/07/2020] [Accepted: 07/15/2020] [Indexed: 12/03/2022]
Abstract
Research into hand-sensing is the focus of various fields, such as medical engineering and ergonomics. The thumb is essential in these studies, as there is great value in assessing its opposition function. However, evaluation methods in the medical field, such as physical examination and computed tomography, and existing sensing methods in the ergonomics field have various shortcomings. Therefore, we conducted a comparative study using a carbon nanotube-based strain sensor to assess whether opposition movement and opposition impairment can be detected in 20 hands of volunteers and 14 hands of patients with carpal tunnel syndrome while avoiding existing shortcomings. We assembled a measurement device with two sensors and attached it to the dorsal skin of the first carpometacarpal joint. We measured sensor expansion and calculated the correlation coefficient during thumb motion. The average correlation coefficient significantly increased in the patient group, and intrarater and interrater reliability were good. Thus, the device accurately detected thumb opposition impairment due to carpal tunnel syndrome, with superior sensitivity and specificity relative to conventional manual inspection, and may also detect opposition impairment due to various diseases. Additionally, in the future, it could be used as an easy, affordable, and accurate sensor in sensor gloves.
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Affiliation(s)
- Tomoyuki Kuroiwa
- Department of Orthopaedic and Spinal Surgery, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo 113-8519, Japan; (T.K.); (T.S.); (T.K.); (A.O.)
| | - Akimoto Nimura
- Department of Functional Joint Anatomy, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo 113-8519, Japan;
| | - Yu Takahashi
- AI Group, Department of 1st Research and Development, Yamaha Corporation, Shizuoka 430-0904, Japan;
| | - Toru Sasaki
- Department of Orthopaedic and Spinal Surgery, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo 113-8519, Japan; (T.K.); (T.S.); (T.K.); (A.O.)
| | - Takafumi Koyama
- Department of Orthopaedic and Spinal Surgery, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo 113-8519, Japan; (T.K.); (T.S.); (T.K.); (A.O.)
| | - Atsushi Okawa
- Department of Orthopaedic and Spinal Surgery, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo 113-8519, Japan; (T.K.); (T.S.); (T.K.); (A.O.)
| | - Koji Fujita
- Department of Functional Joint Anatomy, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo 113-8519, Japan;
- Correspondence: ; Tel.: +81-3-5803-5279
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Affiliation(s)
- Christopher J. Dy
- Department of Orthopaedic Surgery, and Division of Public Health Sciences, Department of Surgery, Washington University School of Medicine, St. Louis, Missouri,Email address:
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Fujita K, Watanabe T, Kuroiwa T, Sasaki T, Nimura A, Sugiura Y. A Tablet-Based App for Carpal Tunnel Syndrome Screening: Diagnostic Case-Control Study. JMIR Mhealth Uhealth 2019; 7:e14172. [PMID: 31586365 PMCID: PMC6779028 DOI: 10.2196/14172] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2019] [Revised: 07/10/2019] [Accepted: 07/19/2019] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Carpal tunnel syndrome (CTS), the most common neuropathy, is caused by a compression of the median nerve in the carpal tunnel and is related to aging. The initial symptom is numbness and pain of the median nerve distributed in the hand area, while thenar muscle atrophy occurs in advanced stages. This atrophy causes failure of thumb motion and results in clumsiness; even after surgery, thenar atrophy does not recover for an extended period. Medical examination and electrophysiological testing are useful to diagnose CTS; however, visits to the doctor tend to be delayed because patients neglect the symptom of numbness in the hand. To avoid thenar atrophy-related clumsiness, early detection of CTS is important. OBJECTIVE To establish a CTS screening system without medical examination, we have developed a tablet-based CTS detection system, focusing on movement of the thumb in CTS patients; we examined the accuracy of this screening system. METHODS A total of 22 female CTS patients, involving 29 hands, and 11 female non-CTS participants were recruited. The diagnosis of CTS was made by hand surgeons based on electrophysiological testing. We developed an iPad-based app that recorded the speed and timing of thumb movements while playing a short game. A support vector machine (SVM) learning algorithm was then used by comparing the thumb movements in each direction among CTS and non-CTS groups with leave-one-out cross-validation; with this, we conducted screening for CTS in real time. RESULTS The maximum speed of thumb movements between CTS and non-CTS groups in each direction did not show any statistically significant difference. The CTS group showed significantly slower average thumb movement speed in the 3 and 6 o'clock directions (P=.03 and P=.005, respectively). The CTS group also took a significantly longer time to reach the points in the 2, 3, 4, 5, 6, 8, 9, and 11 o'clock directions (P<.05). Cross-validation revealed that 27 of 29 CTS hands (93%) were classified as having CTS, while 2 of 29 CTS hands (7%) did not have CTS. CTS and non-CTS were classified with 93% sensitivity and 73% specificity. CONCLUSIONS Our newly developed app could classify disturbance of thumb opposition movement and could be useful as a screening test for CTS patients. Outside of the clinic, this app might be able to detect middle-to-severe-stage CTS and prompt these patients to visit a hand surgery specialist; this may also lead to medical cost-savings.
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Affiliation(s)
- Koji Fujita
- Department of Orthopedic and Spinal Surgery, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Takuro Watanabe
- School of Science for Open and Environmental Systems, Graduate School of Science and Technology, Keio University, Yokohama, Japan
| | - Tomoyuki Kuroiwa
- Department of Orthopedic and Spinal Surgery, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Toru Sasaki
- Department of Orthopedic and Spinal Surgery, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Akimoto Nimura
- Functional Joint Anatomy, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Yuta Sugiura
- School of Science for Open and Environmental Systems, Graduate School of Science and Technology, Keio University, Yokohama, Japan
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Kuroiwa T, Nimura A, Suzuki S, Sasaki T, Okawa A, Fujita K. Measurement of thumb pronation and palmar abduction angles with a small motion sensor: a comparison with Kapandji scores. J Hand Surg Eur Vol 2019; 44:728-733. [PMID: 31033377 DOI: 10.1177/1753193419843837] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
The Kapandji score is used widely to record thumb opposition and is the only alternative to angular measurements. We aimed to verify the extent to which the Kapandji score reflects the angle of pronation. We recruited volunteers with unaffected upper limbs (33 hands) and patients with carpal tunnel syndrome (20 hands). We attached a small gyroscope to the thumb metacarpal and measured the pronation and palmar abduction angles at each position of the Kapandji score in both groups. The Kapandji score showed a strong ceiling effect, and the increase in angle size at each Kapandji score levelled off around a score of 6 in both groups. A Kapandji score greater than 6 does not necessarily reflect thumb opposition. Level of Evidence: III.
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Affiliation(s)
- Tomoyuki Kuroiwa
- 1 Department of Orthopaedic and Spinal Surgery, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Akimoto Nimura
- 2 Department of Functional Joint Anatomy, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Shiro Suzuki
- 2 Department of Functional Joint Anatomy, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Toru Sasaki
- 1 Department of Orthopaedic and Spinal Surgery, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Atsushi Okawa
- 1 Department of Orthopaedic and Spinal Surgery, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Koji Fujita
- 1 Department of Orthopaedic and Spinal Surgery, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
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