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370 results on '"Yamamoto, Michiro"'

1. Cognitive Process during Palpation and Basic Concept of Remote Palpation System

Author

Itkonen, Matti, Okajima, Shotaro, Ueda, Sayako, Costa-Garcia, Alvaro, Ningjia, Yang, Kurogi, Tadatoshi, Fujiwara, Takeshi, Kurimoto, Shigeru, Oyama, Shintaro, Saeki, Masaomi, Yamamoto, Michiro, Yoneda, Hidemasa, Hirata, Hitoshi, and Shimoda, Shingo

Subjects
Computer Science - Robotics
Abstract

This paper will examine the cognitive processes involved in palpation in order to develop an appropriate remote palpation system. In a conventional remote palpation system, the tactile condition of the patient is conveyed to the doctors using a force feedback system. A clarification of the cognitive process during palpation suggests that the purpose of palpation is to formulate a clear idea about the patient's medical problems using the tactile sensation as a trigger to combine the results of other assessments, past experience and memory, and patient reactions to the doctor's touch. This is in contrast to the objective of acquiring the detailed tactile condition of the affected body part. In order to demonstrate this purpose, we will describe the two significant signal pathways for the perception of tactile sensation, both in doctors and patients. The perception of doctors progresses as the result of active touch to the affected part, thereby implying that the simultaneous stimulation of kinaesthetic and tactile sensation is necessary. Conversely, the tactile sensation experienced by patients is the result of passive touch, which evokes a more subjective and emotional response. Patients both explicitly and implicitly perceive the stimulation, and doctors use these perceptions as reactions of the pain to the doctors' touch. This paper proposes the fundamental concept of a remote palpation system, ``Palpation Reality beyond Real'', to achieve the purpose of palpation. Palpation reality implies a system in which the whole cognitive process progresses at the same level or better than palpation in the standard examination, rather than presenting the real tactile sensation.

Published
2024

6. Interdisciplinary consensus statements on imaging of DRUJ instability and TFCC injuries

Author

Cerezal, Luis, del Piñal, Francisco, Atzei, Andrea, Schmitt, Rainer, Becce, Fabio, Klich, Maciej, Bień, Maciej, de Jonge, Milko C., Teh, James, Boutin, Robert Downey, Toms, Andoni Paul, Omoumi, Patrick, Fritz, Jan, Bazzocchi, Alberto, Shahabpour, Maryam, Zanetti, Marco, Llopis, Eva, Blum, Alain, Lalam, Radhesh Krishna, Reto, Sutter, Afonso, P. Diana, Mascarenhas, Vasco V., Cotten, Anne, Drapé, Jean-Luc, Bierry, Guillaume, Pracoń, Grzegorz, Dalili, Danoob, Mespreuve, Marc, Garcia-Elias, Marc, Bain, Gregory Ian, Mathoulin, Christophe L., Van Overstraeten, Luc, Szabo, Robert M., Camus, Emmanuel J., Luchetti, Riccardo, Chojnowski, Adrian Julian, Gruenert, Joerg G., Czarnecki, Piotr, Corella, Fernando, Nagy, Ladislav, Yamamoto, Michiro, Golubev, Igor O., van Schoonhoven, Jörg, Goehtz, Florian, Sudoł-Szopińska, Iwona, and Dietrich, Tobias Johannes

Published
2023
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7. Interdisciplinary consensus statements on imaging of scapholunate joint instability

Author

Dietrich, Tobias Johannes, Toms, Andoni Paul, Cerezal, Luis, Omoumi, Patrick, Boutin, Robert Downey, Fritz, Jan, Schmitt, Rainer, Shahabpour, Maryam, Becce, Fabio, Cotten, Anne, Blum, Alain, Zanetti, Marco, Llopis, Eva, Bień, Maciej, Lalam, Radhesh Krishna, Afonso, P Diana, Mascarenhas, Vasco V, Sutter, Reto, Teh, James, Pracoń, Grzegorz, de Jonge, Milko C, Drapé, Jean-Luc, Mespreuve, Marc, Bazzocchi, Alberto, Bierry, Guillaume, Dalili, Danoob, Garcia-Elias, Marc, Atzei, Andrea, Bain, Gregory Ian, Mathoulin, Christophe L, del Piñal, Francisco, Van Overstraeten, Luc, Szabo, Robert M, Camus, Emmanuel J, Luchetti, Riccardo, Chojnowski, Adrian Julian, Grünert, Jörg G, Czarnecki, Piotr, Corella, Fernando, Nagy, Ladislav, Yamamoto, Michiro, Golubev, Igor O, van Schoonhoven, Jörg, Goehtz, Florian, Klich, Maciej, and Sudoł-Szopińska, Iwona

Subjects
Biomedical Imaging, Clinical Research, Bioengineering, 4.2 Evaluation of markers and technologies, Detection, screening and diagnosis, Musculoskeletal, Arthrography, Consensus, Humans, Joint Instability, Ligaments, Articular, Wrist Injuries, Wrist Joint, Wrist injuries, Joint instability, Diagnostic imaging, Guidelines, Surveys and questionnaires, Clinical Sciences, Nuclear Medicine & Medical Imaging
Abstract

ObjectivesThe purpose of this agreement was to establish evidence-based consensus statements on imaging of scapholunate joint (SLJ) instability by an expert group using the Delphi technique.MethodsNineteen hand surgeons developed a preliminary list of questions on SLJ instability. Radiologists created statements based on the literature and the authors' clinical experience. Questions and statements were revised during three iterative Delphi rounds. Delphi panellists consisted of twenty-seven musculoskeletal radiologists. The panellists scored their degree of agreement to each statement on an eleven-item numeric scale. Scores of '0', '5' and '10' reflected complete disagreement, indeterminate agreement and complete agreement, respectively. Group consensus was defined as a score of '8' or higher for 80% or more of the panellists.ResultsTen of fifteen statements achieved group consensus in the second Delphi round. The remaining five statements achieved group consensus in the third Delphi round. It was agreed that dorsopalmar and lateral radiographs should be acquired as routine imaging work-up in patients with suspected SLJ instability. Radiographic stress views and dynamic fluoroscopy allow accurate diagnosis of dynamic SLJ instability. MR arthrography and CT arthrography are accurate for detecting scapholunate interosseous ligament tears and articular cartilage defects. Ultrasonography and MRI can delineate most extrinsic carpal ligaments, although validated scientific evidence on accurate differentiation between partially or completely torn or incompetent ligaments is not available.ConclusionsDelphi-based agreements suggest that standardized radiographs, radiographic stress views, dynamic fluoroscopy, MR arthrography and CT arthrography are the most useful and accurate imaging techniques for the work-up of SLJ instability.Key points• Dorsopalmar and lateral wrist radiographs remain the basic imaging modality for routine imaging work-up in patients with suspected scapholunate joint instability. • Radiographic stress views and dynamic fluoroscopy of the wrist allow accurate diagnosis of dynamic scapholunate joint instability. • Wrist MR arthrography and CT arthrography are accurate for determination of scapholunate interosseous ligament tears and cartilage defects.

Published
2021

24. Quantitative Measurement of Rotation in Phalangeal Fracture Malunion Using Computed Tomography Imaging—"Linkage Simulation".

Author

Yoneda, Hidemasa, Iwatsuki, Katsuyuki, Saeki, Masaomi, Murayama, Atsuhiko, Takahashi, Nobunori, Yamamoto, Michiro, and Hirata, Hitoshi

Subjects
FINGER injuries, MEDICAL digital radiography, ANATOMICAL planes, COMPUTED tomography, SIMULATION software
Abstract

Malunion of thumb and finger fractures causes problems in the cosmetic and functional aspects of the hand. Malunion of phalangeal fractures usually manifests as a combination of rotational deformities in the coronal, sagittal, and transverse planes, and corrective osteotomy is performed on the planes that cause these problems. Quantification of the deformity is essential for precise osteotomy and is difficult to perform in the transverse plane, even with radiography or computed tomography. Thus, we developed a technique called linkage simulation for the quantitative measurement of rotational deformities for surgical planning. In this procedure, finger extension and flexion can be simulated based on the predicted rotational axis of the joint, which is useful for determining the appropriate correction. Furthermore, by performing a reduction simulation in the software, it is possible to simulate the surgery and predict the postoperative results. This paper reports the details of this technique. [ABSTRACT FROM AUTHOR]

Published
2024
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28. Multiple tendon transfer for a case of radial nerve palsy in hereditary neuropathy with liability to pressure palsy

Author

Palumbo, Federico, Yamamoto, Michiro, and Hirata, Hitoshi

Subjects
tendon transfer, radial nerve, radial neuropathy, hereditary sensory and motor neuropathy, hereditary neuropathy with liability to pressure palsies (HNPP)
Abstract

Hereditary neuropathy with liability to pressure palsy (HNPP) is a rare autosomal dominant disease characterized by focal, recurrent, demyelinating peripheral neuropathies. It is caused by deletions of the gene encoding for peripheral myelin protein 22 (PMP22) on chromosome 17. While it may range widely, the most common clinical presentation is an acute, focal mononeuropathy with numbness or muscle weakness after trauma or compression. Diagnostic tools include electrophysiological studies, genetic tests and nerve biopsies. There is no standard surgical or pharmacological treatment. The course of the disease is usually benign, with spontaneous improvement after most episodes of peripheral nerve palsy. HNPP is best managed by early detection, preventative measures, and subsequent treatment of symptoms. According to the medical literature, operative treatment was undertaken in few cases and limited to decompression of the nerve at the classic entrapment sites of the carpal or cubital tunnels. We present a case of multiple tendon transfer (pronator teres to extensor carpi radialis brevis and flexor carpi radialis to extensor digitorum communis) with a two-year follow-up in a 24-year-old woman with HNPP who was affected by irreversible radial nerve palsy, and conclude with a review of the medical literature related to the disease.

Published
2023

30. A systematic review assessing the effectiveness of hand therapy programmes in adults with burns using the International Classification of Functioning, Disability and Health framework

Author

Yoshida, Akihito, Yamamoto, Michiro, Li-Tsang, Cecilia W. P., Iwatsuki, Katsuyuki, and Hirata, Hitoshi

Subjects
burns, systematic review, hand therapy, upper extremity, rehabilitation
Abstract

This systematic review aimed to confirm the effectiveness of hand therapy programmes using the International Classification of Functioning, Disability and Health framework for each of the three phases of the wound healing process in adults with burns. A systematic review was conducted to determine the efficacy of different hand therapy programmes in the management of burnt hands. Two independent reviewers conducted a literature search using the PubMed and Cumulative Index to Nursing and Allied Health Literature databases for original articles reporting effectiveness of hand therapy programmes for adults with burns. Only randomized and non-randomized controlled trials were selected using the Mixed Methods Appraisal Tool. Demographic and clinical data including medical history, burn depth, and hand therapy programme were extracted. Outcome measures were reviewed based on the International Classification of Functioning, Disability and Health framework for acute, convalescence, and chronic phases of rehabilitation. Sixteen articles and 15 hand therapy programmes were identified, which included studies showing improvements in different parameters in the framework. In the acute and convalescence phases, improvements were found in health condition, body functions and structures, activities, and participation. In the chronic phase, improvements were shown only in body functions and structures. Environmental factors in the framework were not reported for all the phases. This review demonstrated the efficacy of hand therapy programmes in adults with burns in terms of the health condition, body function, activities, and participation during acute and convalescence phases but only the body function in the chronic phase.

Published
2022

31. Can on-top plasty for atypical radial polydactyly realize a functional reconstruction corresponding to appearance?

Author

Yoneda, Hidemasa, Hara, Tatsuya, Iwatsuki, Katsuyuki, Yamamoto, Michiro, Tatebe, Masahiro, and Hirata, Hitoshi

Subjects
on-top plasty, patient related outcome for the child, radial polydactyly, function of the reconstructed thumb
Abstract

On-top plasty may be the best option for reconstructing atypical radial polydactyly, consisting of a developed distal portion in one thumb and a developed proximal portion in the other thumb. However, it is unclear if patients can gain thumb function corresponding to the reconstructed appearance. We performed a retrospective bibliographic review to summarize the current literature and present our department’s on-top plasty experiences. Over the last ten years, our department performed three on-top plasty radial polydactyly reconstructions. We surveyed the appearance and use of the reconstructed thumb and the patient’s satisfaction level during postoperative follow-up. We also retrieved published case reports describing on-top plasty for polydactyly reconstruction to compare with our cases. Our patients had an acceptable thumb appearance and were satisfied with the gained function of the thumb. However, two patients required revision surgery. We found 11 studies in the literature describing on-top plasty for polydactyly treatment, four of which reported a limited range of thumb motion, but no patient or their family complained about the result. Most patients who undergo on-top plasty for radial polydactyly can expect a fair to good appearance after surgery. Although instability or limitation of the joint arc is possible, the reconstruction satisfies patients regarding function and appearance.

Published
2022

35. A nerve-to-implant distance as a novel predictor for lateral femoral cutaneous nerve injuries after anterior subcutaneous pelvic internal fixation

Author

Takeda, Shinsuke, Yamamoto, Michiro, Tanaka, Yoshihiro, Mitsuya, So, Yamauchi, Ken-Ichi, Hirata, Hitoshi, Takeda, Shinsuke, Yamamoto, Michiro, Tanaka, Yoshihiro, Mitsuya, So, Yamauchi, Ken-Ichi, and Hirata, Hitoshi

Abstract

Although anterior subcutaneous pelvic internal fixation is a valuable tool for the reduction and fixation of unstable pelvic ring injuries, lateral femoral cutaneous nerve irritation by the implant is the most common complication. This study aimed to investigate the association between the nerve-to-implant distance and the postoperative lateral femoral cutaneous nerve symptom. Patients who underwent anterior subcutaneous pelvic internal fixation between 2016 and 2019 were retrospectively analyzed. Lateral femoral cutaneous nerve status was defined as follows: not identified, nerve-to-implant distance <13 mm, and ≥13 mm. The proportion of patients who experienced postoperative nerve disorders was compared using the nerve status. Nerve-to-implant distances were compared using the presence or absence of postoperative lateral femoral cutaneous nerve disorders. The predictive value of a nerve-to-implant distance of 13 mm for postoperative nerve disorders was assessed. Overall, 26 lateral femoral cutaneous nerves were included. Ten patients had postoperative nerve disorders, of which seven had an nerve-to-implant distance <13 mm, while the other three occurred in patients whose nerves were not identified. A nerve-to-implant distance ≥13 mm was significantly associated with a decreased risk of postoperative nerve disorder compared to a nerve -to-implant distance <13 mm (p = 0.017). A nerve-to-implant distance ≥13 mm had a perfect sensitivity (100%) and modest specificity (58.3%). Nerve-to-implant distance was ≥13 mm. Nerve disorders were frequently observed when the nerve-to-implant distance was <13 mm or the nerve was not identified intraoperatively. Efforts to identify the lateral femoral cutaneous nerve may be useful to avoid internal fixation-related nerve disorders.

Published
2023

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