The Experts below are selected from a list of 360 Experts worldwide ranked by ideXlab platform

M Farrar - One of the best experts on this subject based on the ideXlab platform.

Arthur De Sá Ferreira - One of the best experts on this subject based on the ideXlab platform.

  • Mobilização do osso Pisiforme no tratamento da neuropraxia do nervo ulnar no canal de Guyon: relato de caso Pisiform Bone mobilization for treating ulnar nerve neuropraxia at Guyon's canal: case report
    Universidade de São Paulo, 2009
    Co-Authors: Júlio Guilherme Silva, Reny De Souza Antonioli, Marco Orsini, Marcos Antônio Júlio Dos Santos Júnior, Arthur De Sá Ferreira
    Abstract:

    As neuropraxias do nervo ulnar são lesões bastante freqüentes que provocam efeitos deletérios, como diminuição de força muscular e parestesias; geralmente ocorrem no nível do epicôndilo medial e do túnel ulnar (canal de Guyon). São escassos os relatos referentes a técnicas de terapia manual para compressões do nervo ulnar no canal de Guyon. Este trabalho relata o uso da técnica de mobilização do Pisiforme na compressão do nervo ulnar no canal de Guyon de um homem que sofreu luxação do punho direito aos 8 anos e, aos 25, queixava-se de um deficit para adução do dedo mínimo, que atrapalhava a realização de algumas atividades de vida diária. O paciente foi submetido a uma única sessão de mobilização articular do Pisiforme. Após a aplicação da técnica, o sinal positivo do teste foi eliminado, restabelecendo-se a função de adução do 5o dedo. Embora carecendo de maior fundamentação teórica, pode-se afirmar que a técnica usada, de mobilização articular do osso Pisiforme, é eficaz para melhora do quadro de paresia por neuropraxia do nervo ulnar no canal de Guyon.A common ulnar nerve neuropraxia is lesion that may result in muscle strength decrease and/or paresthesia; it usually takes place at medial epicondyle level and the ulnar tunnel (Guyon's canal). Studies on manual therapy techniques for ulnar nerve compression in Guyon's canal are scarce. This paper reports the use of a technique of Pisiform Bone mobilization for relieving ulnar nerve compression in Guyon's canal, in a man who had suffered a luxation of the right wrist at the age of 8 and, at 25, complained of adduction deficit of the fifth finger that interfered in his daily life activities. He was submitted to one session of Pisiform mobilization; after the session, the positive test sign was eliminated, thus restoring the fifth finger function. Though lacking further grounding, it may be said that the technique used, of mobilizing the Pisiform Bone joint, is effective to restore normal function after ulnar nerve compression at the Guyon's canal

  • Mobilização do osso Pisiforme no tratamento da neuropraxia do nervo ulnar no canal de Guyon: relato de caso
    Universidade de São Paulo. Faculdade de Medicina, 2009
    Co-Authors: Silva, Júlio Guilherme, Antonioli, Reny De Souza, Orsini Marco, Santos Júnior, Marcos Antônio Júlio Dos, Arthur De Sá Ferreira
    Abstract:

    A common ulnar nerve neuropraxia is lesion that may result in muscle strength decrease and/or paresthesia; it usually takes place at medial epicondyle level and the ulnar tunnel (Guyon's canal). Studies on manual therapy techniques for ulnar nerve compression in Guyon's canal are scarce. This paper reports the use of a technique of Pisiform Bone mobilization for relieving ulnar nerve compression in Guyon's canal, in a man who had suffered a luxation of the right wrist at the age of 8 and, at 25, complained of adduction deficit of the fifth finger that interfered in his daily life activities. He was submitted to one session of Pisiform mobilization; after the session, the positive test sign was eliminated, thus restoring the fifth finger function. Though lacking further grounding, it may be said that the technique used, of mobilizing the Pisiform Bone joint, is effective to restore normal function after ulnar nerve compression at the Guyon's canal.As neuropraxias do nervo ulnar são lesões bastante freqüentes que provocam efeitos deletérios, como diminuição de força muscular e parestesias; geralmente ocorrem no nível do epicôndilo medial e do túnel ulnar (canal de Guyon). São escassos os relatos referentes a técnicas de terapia manual para compressões do nervo ulnar no canal de Guyon. Este trabalho relata o uso da técnica de mobilização do Pisiforme na compressão do nervo ulnar no canal de Guyon de um homem que sofreu luxação do punho direito aos 8 anos e, aos 25, queixava-se de um deficit para adução do dedo mínimo, que atrapalhava a realização de algumas atividades de vida diária. O paciente foi submetido a uma única sessão de mobilização articular do Pisiforme. Após a aplicação da técnica, o sinal positivo do teste foi eliminado, restabelecendo-se a função de adução do 5o dedo. Embora carecendo de maior fundamentação teórica, pode-se afirmar que a técnica usada, de mobilização articular do osso Pisiforme, é eficaz para melhora do quadro de paresia por neuropraxia do nervo ulnar no canal de Guyon

Michiel Kreulen - One of the best experts on this subject based on the ideXlab platform.

  • flexor carpi ulnaris tenotomy alone does not eliminate its contribution to wrist torque
    Clinical Biomechanics, 2011
    Co-Authors: Marije De Bruin, Mark J C Smeulders, Michiel Kreulen
    Abstract:

    Abstract Background Flexor carpi ulnaris muscle tenotomy and transfer to the extensor side of the wrist are common procedures used to improve wrist position and dexterity in patients with cerebral palsy. Our aim was to determine whether this muscle still influences wrist torque even after tenotomy of its distal tendon. Methods Intra-operatively, we determined in vivo maximal wrist torque in hemiplegic cerebral palsy patients (n = 15, mean age 17 years) in three conditions: 1) with the arm and the muscle intact; 2) after tenotomy of the flexor carpi ulnaris just proximal to the Pisiform Bone, with complete release from its insertion; and 3) after careful dissection of the belly of the muscle from its fascial surroundings up until approximately halfway its length. Findings After tenotomy of the flexor carpi ulnaris muscle, the maximal wrist torque decreased 18% whereas dissection of the muscle resulted in an additional decrease of 18%. Interpretation We conclude that despite the tenotomy of its distal tendon, the flexor carpi ulnaris still contributes to the flexion torque at the wrist through myofascial force transmission. Quantification of this phenomenon will help in the study of the effects of fascial dissection on the functional results of tendon transfer surgery.

K H Sharara - One of the best experts on this subject based on the ideXlab platform.

Nurten Uzun Adatepe - One of the best experts on this subject based on the ideXlab platform.

  • evaluation of median nerve by shear wave elastography and diffusion tensor imaging in carpal tunnel syndrome
    European Journal of Radiology, 2018
    Co-Authors: Mehmet Cingoz, Sedat Giray Kandemirli, Deniz Alis, Cesur Samanci, Guzin Cakir Kandemirli, Nurten Uzun Adatepe
    Abstract:

    Abstract Purpose The aim of the current study is to investigate the diagnostic role of shear-wave elastography and diffusion tensor imaging in patients with carpal tunnel syndrome. Material and methods The study included a total of 77 wrists; 18 normal, 35 wrists with mild, 9 wrists with moderate and 15 wrists with severe carpal tunnel syndrome. Elastography of the median nerve was performed by defining the boundaries of a segment of the nerve at sagittal plane at the level of proximal carpal row. Additionally, the cross-sectional area of the median nerve was evaluated. Fractional anisotropy and apparent diffusion coefficient measurements were carried out by placing region-of-interest at three levels: at Pisiform Bone (carpal tunnel inlet), mid carpal tunnel, and hook of hamate (carpal tunnel outlet). Results Patients with carpal tunnel syndrome had higher elasticity values of median nerve (53.0 kPa; IQR 40.8–77.0 kPa) compared to control subjects. (36.8 kPa; IQR 31.0–39.9 kPa) Patients with moderate-severe carpal tunnel syndrome had higher elasticity values (82 kPa; IQR 64.0–95.5 kPa) compared to patients with mild carpal tunnel syndrome. (44 kPa; IQR 32.5–59.5 kPa) Patients with carpal tunnel syndrome had lower fractional anisotropy at mid-carpal level (0.382; IQR 0.330–0.495) compared to the control group. (0.494; IQR 0.434–0.537) Patients with moderate-severe carpal tunnel syndrome had lower fractional anisotropy values (0.366; IQR 0.331–0.407) and higher apparent diffusion coefficient values (1.509 mm2/s; IQR 1.374–1.733 mm2/s) compared to patients with mild carpal tunnel syndrome. (0,423; IQR 0.324–0.526 and 1.293 mm2/s; IQR 0.967–1.514 mm2/s) Conclusion Shear-wave elastography and diffusion tensor imaging are helpful imaging modalities in diagnosing carpal tunnel syndrome and assessing its severity.