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Yilmaz M, Gungor Y, Salman N, Comert A, Esmer TS, Esmer AF. Tibial nerve branching pattern and compatibility of branches for the deep fibular nerve. Surg Radiol Anat 2024; 46:413-424. [PMID: 38480593 DOI: 10.1007/s00276-024-03329-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2023] [Accepted: 02/22/2024] [Indexed: 04/05/2024]
Abstract
PURPOSE In individuals who develop drop foot due to nerve loss, several methods such as foot-leg orthosis, tendon transfer, and nerve grafting are used. Nerve transfer, on the other hand, has been explored in recent years. The purpose of this study was to look at the tibial nerve's branching pattern and the features of its branches in order to determine the suitability of the tibial nerve motor branches, particularly the plantaris muscle motor nerve, for deep fibular nerve transfer. METHODS There were 36 fixed cadavers used. Tibial nerve motor branches were observed and measured, as were the lengths, distributions, and thicknesses of the common fibular nerve and its branches at the bifurcation region. RESULT The motor branches of the tibial nerve that supply the soleus muscle, lateral head, and medial head of the gastrocnemius were studied, and three distinct forms of distribution were discovered. The motor branch of the gastrocnemius medial head was commonly observed as the first branch to divide, and it appeared as a single root. The nerve of the plantaris muscle was shown to be split from many origins. When the thickness and length of the motor branches measured were compared, the nerve of the soleus muscle was determined to be the most physically suited for neurotization. CONCLUSION In today drop foot is very common. Traditional methods of treatment are insufficient. Nerve transfer is viewed as an application that can both improve patient outcomes and hasten the patient's return to society. The nerve of the soleus muscle was shown to be the best candidate for transfer in our investigation.
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Affiliation(s)
- Mehmet Yilmaz
- School of Medicine, Department of Anatomy, Ankara University, Sihhiye, Ankara, 06100, Turkey.
| | - Yigit Gungor
- School of Medicine, Department of Anatomy, Ankara University, Sihhiye, Ankara, 06100, Turkey
| | - Necati Salman
- Gulhane Faculty of Medicine, Department of Anatomy, University of Health Sciences Turkey, Ankara, Turkey
| | - Ayhan Comert
- School of Medicine, Department of Anatomy, Ankara University, Sihhiye, Ankara, 06100, Turkey
| | - Tulin Sen Esmer
- School of Medicine, Department of Anatomy, Ankara University, Sihhiye, Ankara, 06100, Turkey
| | - Ali Firat Esmer
- School of Medicine, Department of Anatomy, Ankara University, Sihhiye, Ankara, 06100, Turkey
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2
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Prum G, Crampon F, Duparc F, Trost O. Towards standardization of terminology for vessels and nerves of the leg? Surg Radiol Anat 2024; 46:259-261. [PMID: 38276997 DOI: 10.1007/s00276-024-03304-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2023] [Accepted: 01/14/2024] [Indexed: 01/27/2024]
Affiliation(s)
- Grégoire Prum
- Laboratory of Anatomy, Rouen Faculty of Medicine, Rouen, France.
| | | | - Fabrice Duparc
- Laboratory of Anatomy, Rouen Faculty of Medicine, Rouen, France
| | - Olivier Trost
- Laboratory of Anatomy, Rouen Faculty of Medicine, Rouen, France
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Ortiz-Miguel S, Miguel-Pérez M, Blasi J, Pérez-Bellmunt A, Ortiz-Sagristà JC, Möller I, Agullo JL, Iglesias P, Martinoli C. Compartments of the crural fascia: clinically relevant ultrasound, anatomical and histological findings. Surg Radiol Anat 2023; 45:1603-1617. [PMID: 37812286 PMCID: PMC10625514 DOI: 10.1007/s00276-023-03242-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Accepted: 09/04/2023] [Indexed: 10/10/2023]
Abstract
PURPOSE Compartment syndrome is a surgical emergency that can occur in any part of the body and can cause cell necrosis when maintained over time. The resulting defects can affect the nerves, muscle cells, bone tissue, and other connective tissues inside the compartment, and fasciotomy has to be performed. The anatomical and histological characteristics of the leg make acute, chronic, and exertional compartment syndrome more likely in this limb. For these reasons, knowledge of the ultrasound, anatomical, and histological features of the crural fascia can help in the treatment of leg compartment syndrome. METHODS Twenty-one cryopreserved lower limbs from adult cadavers and from one 29-week-old fetus were obtained from the dissection room. They were examined by ultrasound and a subsequent anatomical dissection and microscopy to study the crural fascia and its relationship with the different muscles. Anthropometric measurements were taken of the distances from the head of the fibula and lateral malleolus to the origin of the tibialis anterior muscle in the crural fascia, the exit of the superficial fibular nerve, and the fascia covering the deep posterior muscles of the leg. RESULTS The crural fascia has very important clinical relationships, which can be identified by ultrasound, as the origin of the tibialis anterior muscle at 16.25 cm from the head of the fibula and the exit of the superficial fibular nerve that crosses this fascia at 21.25 cm from the head of the fibula. Furthermore, the presence of a septum that fixes the deep posterior muscles of the leg and the vessels and nerve can be seen by ultrasound and can explain the possible development of a posterior compartmental syndrome of the leg. Awareness of these features will help to keep these structures safe during the surgical treatment of compartment syndrome. CONCLUSION The ultrasound study allows identification of anatomical structures in the leg and, thus, avoids damage to them during surgery for compartmental syndromes.
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Affiliation(s)
- S Ortiz-Miguel
- Unit of Human Anatomy and Embryology, Department of Pathology and Experimental Therapeutics, Faculty of Medicine and Health Sciences (Bellvitge Campus), University of Barcelona, C/Feixa Llarga, s/n, 08907, L'Hospitalet de Llobregat, Spain
- Basic Sciences Department, Universitat Internacional de Catalunya, Sant Cugat del Vallès (Barcelona), Spain
| | - M Miguel-Pérez
- Unit of Human Anatomy and Embryology, Department of Pathology and Experimental Therapeutics, Faculty of Medicine and Health Sciences (Bellvitge Campus), University of Barcelona, C/Feixa Llarga, s/n, 08907, L'Hospitalet de Llobregat, Spain.
| | - J Blasi
- Unit of Histology, Department of Pathology and Experimental Therapeutics, Faculty of Medicine and Health Sciences (Bellvitge Campus), University of Barcelona, L'Hospitalet de Llobregat, Spain
| | - A Pérez-Bellmunt
- Basic Sciences Department, Universitat Internacional de Catalunya, Sant Cugat del Vallès (Barcelona), Spain
| | | | - I Möller
- Unit of Human Anatomy and Embryology, Department of Pathology and Experimental Therapeutics, Faculty of Medicine and Health Sciences (Bellvitge Campus), University of Barcelona, C/Feixa Llarga, s/n, 08907, L'Hospitalet de Llobregat, Spain
| | - J L Agullo
- Unit of Human Anatomy and Embryology, Department of Pathology and Experimental Therapeutics, Faculty of Medicine and Health Sciences (Bellvitge Campus), University of Barcelona, C/Feixa Llarga, s/n, 08907, L'Hospitalet de Llobregat, Spain
| | - P Iglesias
- Unit of Human Anatomy and Embryology, Department of Pathology and Experimental Therapeutics, Faculty of Medicine and Health Sciences (Bellvitge Campus), University of Barcelona, C/Feixa Llarga, s/n, 08907, L'Hospitalet de Llobregat, Spain
| | - C Martinoli
- Cattedra di Radiologia "R"-DICMI, Universita di Genova, Genoa, Italy
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4
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Lin R, Zhang G, Gan KY, Zhuang YH, Pan RM, Zou LB, Xie Y, Zhao XZ. An anatomical study of the tibial nerve branches innervating the posterior tibial artery. Clin Anat 2023; 36:875-880. [PMID: 36527146 DOI: 10.1002/ca.23997] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2022] [Revised: 12/09/2022] [Accepted: 12/12/2022] [Indexed: 12/23/2022]
Abstract
The arteries of the lower limbs are innervated by vascular branches (VBs) originating from the lumbar sympathetic trunk and branches of the spinal nerve. Although lumbar sympathectomy is used to treat nonreconstructive critical lower limb ischemia (CLLI), it has limited long-term effects. In addition, the anatomical structure of tibial nerve (TN) VBs remain incompletely understood. This study aimed to clarify their anatomy and better inform the surgical approach for nonreconstructive CLLI. Thirty-six adult cadavers were dissected under surgical microscopy to observe the patterns and origin points of VBs under direct vision. The calves were anatomically divided into five equal segments, and the number of VB origin points found in each was expressed as a proportion of the total found in the whole calf. Immunofluorescence staining was used to identify the sympathetic nerve fibers of the VBs. Our results showed that the TN gave off 3-4 VBs to innervate the posterior tibial artery (PTA), and the distances between VBs origin points and the medial tibial condyle were: 24.7 ± 16.3 mm, 91.7 ± 66.1 mm, 199.6 ± 52.0 mm, 231.7 ± 38.5 mm, respectively. They were mainly located in the first (40.46%) and fourth (31.68%) calf segments, and immunofluorescence staining showed that they contained tyrosine hydroxylase-positive sympathetic nerve fibers. These findings indicate that the TN gives off VBs to innervate the PTA and that these contain sympathetic nerve fibers. Therefore, these VBs may need to be cut to surgically treat nonreconstructable CLLI.
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Affiliation(s)
- Ren Lin
- Department of Human Anatomy, Laboratory of Clinical Applied Anatomy, School of Basic Medical Sciences, Fujian Medical University, Fuzhou, China
| | - Geng Zhang
- Department of Human Anatomy, Laboratory of Clinical Applied Anatomy, School of Basic Medical Sciences, Fujian Medical University, Fuzhou, China
| | - Kai-Yan Gan
- 2020 class (5+3 integrated) clinical medicine major, Fujian Medical University, Fuzhou, China
| | - Yue-Hong Zhuang
- Department of Human Anatomy, Laboratory of Clinical Applied Anatomy, School of Basic Medical Sciences, Fujian Medical University, Fuzhou, China
| | - Rui-Min Pan
- 2020 class (5+3 integrated) clinical medicine major, Fujian Medical University, Fuzhou, China
| | - Lin-Bing Zou
- 2020 class (5+3 integrated) clinical medicine major, Fujian Medical University, Fuzhou, China
| | - Yun Xie
- Department of Orthopedics, The First Affiliated Hospital of Fujian Medical University, Fuzhou, China
| | - Xiao-Zhen Zhao
- Department of Human Anatomy, Laboratory of Clinical Applied Anatomy, School of Basic Medical Sciences, Fujian Medical University, Fuzhou, China
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Oaklander AL, Van Houten T, Sabouri AS. Characterization of mononeuropathy of the lateral cutaneous nerve of the calf. Muscle Nerve 2021; 64:494-499. [PMID: 34197644 PMCID: PMC10066601 DOI: 10.1002/mus.27367] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Revised: 06/25/2021] [Accepted: 06/27/2021] [Indexed: 02/05/2023]
Abstract
INTRODUCTION/AIMS Isolated injuries to the lateral cutaneous nerve of the calf (LCNC) branch of the common peroneal nerve can cause obscure chronic posterolateral knee and upper calf pain and sensory symptoms. Routine examination and electrodiagnostic testing do not detect them because the LCNC has no motor distribution and it is not interrogated by the typical peroneal nerve conduction study. There are only about 10 prior cases, thus scant physician awareness, so most LCNC injuries remain misdiagnosed or undiagnosed, hindering care. METHODS We extracted pertinent records from seven patients with unexplained posterolateral knee/calf pain, six labeled as complex regional pain syndrome, to investigate for mononeuropathies. Patients were asked to outline their skin area with abnormal responses to pin self-examination independently. Three underwent an LCNC-specific electrodiagnostic study, and two had skin-biopsy epidermal innervation measured. Cadaver dissection of the posterior knee nerves helped identify potential entrapment sites. RESULTS Initiating events included knee surgery (three), bracing (one), extensive kneeling (one), and other knee trauma. All pin-outlines included the published LCNC neurotome. One oftwo LCNC-specific electrodiagnostic studies revealed unilaterally absent potentials. Longitudinal, controlled skin biopsies documented profound LCNC-neurotome denervation then re-innervation contemporaneous with symptom recovery. Cadaver dissection identified the LCNC traversing through the dense fascia of the proximolateral gastrocnemius muscle insertion. DISCUSSION Isolated LCNC mononeuropathy can cause unexplained posterolateral knee/calf pain syndromes. This series characterizes presentations and supports patient pin-mappings as a sensitive, globally available, low-cost diagnostic aid. Improved recognition may facilitate more rapid, accurate diagnosis and, thus, optimize management and improve outcomes.
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Affiliation(s)
- Anne Louise Oaklander
- Nerve Unit, Departments of Neurology and Pathology (Neuropathology), Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Trudy Van Houten
- Department of Radiology, Harvard Medical School, Boston, Massachusetts, USA
| | - A Sassan Sabouri
- Department of Anesthesia, Critical Care and Pain Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA
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Peiris WL, Cicuttini FM, Hussain SM, Estee MM, Romero L, Ranger TA, Fairley JL, McLean EC, Urquhart DM. Is adiposity associated with back and lower limb pain? A systematic review. PLoS One 2021; 16:e0256720. [PMID: 34520462 PMCID: PMC8439494 DOI: 10.1371/journal.pone.0256720] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2020] [Accepted: 07/27/2021] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND Back and lower limb pain have a major impact on physical function and quality of life. While obesity is a modifiable risk factor for musculoskeletal pain, the role of adiposity is less clear. This systematic review aimed to examine the relationship between both adiposity and its distribution and back and lower limb pain. METHODS A systematic search of electronic databases was conducted to identify studies that examined the association between anthropometric and/or direct measures of adiposity and site specific musculoskeletal pain. Risk of bias was assessed and a best evidence synthesis was performed. RESULTS A total of 56 studies were identified which examined 4 pain regions, including the lower back (36 studies), hip (two studies), knee (13 studies) and foot (eight studies). 31(55%) studies were assessed as having low to moderate risk of bias. 17(30%) studies were cohort in design. The best evidence synthesis provided evidence of a relationship between central adiposity and low back and knee pain, but not hip or foot pain. There was also evidence of a longitudinal relationship between adiposity and the presence of back, knee and foot pain, as well as incident and increasing foot pain. CONCLUSIONS This systematic review provides evidence of an association between both body fat and its central distribution and low back and knee pain, and a longitudinal relationship between adiposity and back, knee and foot pain. These results highlight the potential for targeting adiposity in the development of novel treatments at these sites.
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Affiliation(s)
- Waruna L. Peiris
- Department Epidemiology and Preventive Medicine, School of Public Health and Preventive Medicine, Monash University, Melbourne, Victoria, Australia
| | - Flavia M. Cicuttini
- Department Epidemiology and Preventive Medicine, School of Public Health and Preventive Medicine, Monash University, Melbourne, Victoria, Australia
| | - Sultana Monira Hussain
- Department Epidemiology and Preventive Medicine, School of Public Health and Preventive Medicine, Monash University, Melbourne, Victoria, Australia
| | - Mahnuma M. Estee
- Department Epidemiology and Preventive Medicine, School of Public Health and Preventive Medicine, Monash University, Melbourne, Victoria, Australia
| | - Lorena Romero
- The Ian Potter Library, The Alfred Hospital, Melbourne, Victoria, Australia
| | - Tom A. Ranger
- Department Epidemiology and Preventive Medicine, School of Public Health and Preventive Medicine, Monash University, Melbourne, Victoria, Australia
| | - Jessica L. Fairley
- Department Epidemiology and Preventive Medicine, School of Public Health and Preventive Medicine, Monash University, Melbourne, Victoria, Australia
| | - Emily C. McLean
- Department Epidemiology and Preventive Medicine, School of Public Health and Preventive Medicine, Monash University, Melbourne, Victoria, Australia
| | - Donna M. Urquhart
- Department Epidemiology and Preventive Medicine, School of Public Health and Preventive Medicine, Monash University, Melbourne, Victoria, Australia
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7
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BÜYÜKMUMCU M, AYDIN KABAKÇI AD, AKIN SAYGIN D, YILMAZ MT, ŞEKER M. Sural nerve harvest for infants: integrated with information based on anatomical dissections. Turk J Med Sci 2021; 51:473-482. [PMID: 32718120 PMCID: PMC8203145 DOI: 10.3906/sag-2005-225] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Accepted: 07/21/2020] [Indexed: 11/03/2022] Open
Abstract
Background/aim The aim of the present study was to determine the course and possible variations of the sural nerve with all anatomical details in human fetal cadavers. Materials and methods This study was performed on 60 fetal cadavers. Formation type and level of the sural nerve was detected. Results According to trimesters, it was determined that the mean transverse and vertical distance between the lowest point of the LM and the SN varied between 1.1 and 2.9 mm and 1.54 and 3.58 mm, respectively. Type 2 was the most common seen type of sural nerve (35.83%). It was determined that the sural nerve was mostly formed at the middle third of the leg (42.5%). Conclusion Sural nerve graft with the knowledge of the anatomical details may be used for peripheral nerve reconstruction is required in congenital lesions, such as facial paralysis, obstetric brachial paralysis, and posttraumatic lesions in infants and children.
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Affiliation(s)
- Mustafa BÜYÜKMUMCU
- Department of Anatomy, Faculty of Meram Medicine, University of Necmettin Erbakan, KonyaTurkey
| | | | - Duygu AKIN SAYGIN
- Department of Anatomy, Faculty of Meram Medicine, University of Necmettin Erbakan, KonyaTurkey
| | - Mehmet Tuğrul YILMAZ
- Department of Anatomy, Faculty of Meram Medicine, University of Necmettin Erbakan, KonyaTurkey
| | - Muzaffer ŞEKER
- Department of Anatomy, Faculty of Meram Medicine, University of Necmettin Erbakan, KonyaTurkey
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Zahr NM, Pohl KM, Pfefferbaum A, Sullivan EV. Dissociable Contributions of Precuneus and Cerebellum to Subjective and Objective Neuropathy in HIV. J Neuroimmune Pharmacol 2019; 14:436-447. [PMID: 30741374 PMCID: PMC6689464 DOI: 10.1007/s11481-019-09837-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2018] [Accepted: 01/25/2019] [Indexed: 01/22/2023]
Abstract
Neuropathy, typically diagnosed by the presence of either symptoms or signs of peripheral nerve dysfunction, remains a frequently reported complication in the antiretroviral (ART)-treated HIV population. This study was conducted in 109 healthy controls and 57 HIV-infected individuals to investigate CNS regions associated with neuropathy. An index of objective neuropathy was computed based on 4 measures: deep tendon ankle reflex, vibration sense (great toes), position sense (great toes), and 2-point discrimination (feet). Subjective neuropathy (self-report of pain, aching, or burning; pins and needles; or numbness in legs or feet) was also evaluated. Structural MRI data were available for 126/166 cases. The HIV relative to the healthy control group was impaired on all 4 signs of neuropathy. Within the HIV group, an objective neuropathy index of 1 (bilateral impairment on 1 measure) or 2 (bilateral impairment on at least 2/4 measures) was associated with older age and a smaller volume of the cerebellar vermis. Moderate to severe symptoms of neuropathy were associated with more depressive symptoms, reduced quality of life, and a smaller volume of the parietal precuneus. This study is consistent with the recent contention that ART-treated HIV-related neuropathy has a CNS component. Distinguishing subjective symptoms from objective signs of neuropathy allowed for a dissociation between the precuneus, a brain region involved in conscious information processing and the vermis, involved in fine tuning of limb movements. Graphical Abstract In HIV patients, objective signs of neuropathy correlated with smaller cerebellar vermis (red) volumes whereas subjective symptoms of neuropathy were associated with smaller precuneus (blue) volumes.
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Affiliation(s)
- Natalie M Zahr
- Neuroscience Program, SRI International, 333 Ravenswood Ave., Menlo Park, CA, 94025, USA.
- Department of Psychiatry and Behavioral Sciences, Stanford University School of Medicine, 401 Quarry Rd., Stanford, CA, 94305, USA.
| | - Kilian M Pohl
- Neuroscience Program, SRI International, 333 Ravenswood Ave., Menlo Park, CA, 94025, USA
| | - Adolf Pfefferbaum
- Neuroscience Program, SRI International, 333 Ravenswood Ave., Menlo Park, CA, 94025, USA
- Department of Psychiatry and Behavioral Sciences, Stanford University School of Medicine, 401 Quarry Rd., Stanford, CA, 94305, USA
| | - Edith V Sullivan
- Department of Psychiatry and Behavioral Sciences, Stanford University School of Medicine, 401 Quarry Rd., Stanford, CA, 94305, USA
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Pitzalis S, Serra C, Sulpizio V, Di Marco S, Fattori P, Galati G, Galletti C. A putative human homologue of the macaque area PEc. Neuroimage 2019; 202:116092. [PMID: 31408715 DOI: 10.1016/j.neuroimage.2019.116092] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2019] [Accepted: 08/08/2019] [Indexed: 12/21/2022] Open
Abstract
The cortical area PEc is anatomically and functionally well-defined in macaque, but it is unknown whether it has a counterpart in human. Since we know that macaque PEc, but not the nearby posterior regions, hosts a lower limb representation, in an attempt to recognize a possible human PEc we looked for the existence of leg representations in the human parietal cortex using individual cortical surface-based analysis, task-evoked paradigms and resting-state functional connectivity. fMRI images were acquired while thirty-one participants performed long-range leg movements through an in-house MRI-compatible set-up. We revealed the existence of multiple leg representations in the human dorsomedial parietal cortex, here defined as S-I (somatosensory-I), hPE (human PE, in the postcentral sulcus), and hPEc (human PEc, in the anterior precuneus). Among the three "leg" regions, hPEc had a unique functional profile, in that it was the only one responding to both arm and leg movements, to both hand-pointing and foot pointing movements, and to flow field visual stimulation, very similar to macaque area PEc. In addition, hPEc showed functional connections with the somatomotor regions hosting a lower limb representation, again as in macaque area PEc. Therefore, based on similarity in brain position, functional organization, cortical connections, and relationship with the neighboring areas, we propose that this cortical region is the human homologue of macaque area PEc.
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Affiliation(s)
- Sabrina Pitzalis
- Department of Movement, Human and Health Sciences, University of Rome ''Foro Italico", 00135, Rome, Italy; Department of Cognitive and Motor Rehabilitation and Neuroimaging, Santa Lucia Foundation (IRCCS Fondazione Santa Lucia), 00142, Rome, Italy.
| | - Chiara Serra
- Department of Movement, Human and Health Sciences, University of Rome ''Foro Italico", 00135, Rome, Italy; Department of Cognitive and Motor Rehabilitation and Neuroimaging, Santa Lucia Foundation (IRCCS Fondazione Santa Lucia), 00142, Rome, Italy
| | - Valentina Sulpizio
- Department of Cognitive and Motor Rehabilitation and Neuroimaging, Santa Lucia Foundation (IRCCS Fondazione Santa Lucia), 00142, Rome, Italy; Department of Biomedical and Neuromotor Sciences, University of Bologna, 40126, Bologna, Italy
| | - Sara Di Marco
- Department of Movement, Human and Health Sciences, University of Rome ''Foro Italico", 00135, Rome, Italy; Department of Cognitive and Motor Rehabilitation and Neuroimaging, Santa Lucia Foundation (IRCCS Fondazione Santa Lucia), 00142, Rome, Italy
| | - Patrizia Fattori
- Department of Biomedical and Neuromotor Sciences, University of Bologna, 40126, Bologna, Italy
| | - Gaspare Galati
- Department of Cognitive and Motor Rehabilitation and Neuroimaging, Santa Lucia Foundation (IRCCS Fondazione Santa Lucia), 00142, Rome, Italy; Brain Imaging Laboratory, Department of Psychology, Sapienza University, 00185, Rome, Italy
| | - Claudio Galletti
- Department of Biomedical and Neuromotor Sciences, University of Bologna, 40126, Bologna, Italy
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Halley SL, Marshall P, Siegler JC. The effect of IPC on central and peripheral fatiguing mechanisms in humans following maximal single limb isokinetic exercise. Physiol Rep 2019; 7:e14063. [PMID: 31025549 PMCID: PMC6483935 DOI: 10.14814/phy2.14063] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2019] [Accepted: 02/01/2019] [Indexed: 12/15/2022] Open
Abstract
Ischemic preconditioning (IPC) has been suggested to preserve neural drive during fatiguing dynamic exercise, however, it remains unclear as to whether this may be the consequence of IPC-enhanced muscle oxygenation. We hypothesized that the IPC-enhanced muscle oxygenation during a dynamic exercise task would subsequently attenuate exercise-induced reductions in voluntary activation. Ten resistance trained males completed three 3 min maximal all-out tests (AOTs) via 135 isokinetic leg extensions preceded by treatments of IPC (3 × 5 min bilateral leg occlusions at 220 mmHg), SHAM (3 × 5 min at 20 mmHg) or CON (30 min passive rest). Femoral nerve stimulation was utilized to assess voluntary activation and potentiated twitch torque during maximal voluntary contractions (MVCs) performed at baseline (BL), prior to the AOT (Pre), and then 10 sec post (Post). Tissue oxygenation (via near-infrared spectroscopy) and sEMG activity was measured throughout the AOT. MVC and twitch torque levels declined (MVC: -87 ± 23 Nm, 95% CI = -67 to -107 Nm; P < 0.001, twitch: -30 ± 13 Nm; 95% CI = -25 to -35 Nm; P < 0.001) between Pre and Post without reductions in voluntary activation (P = 0.72); there were no differences between conditions (MVC: P = 0.75, twitch: P = 0.55). There were no differences in tissue saturation index (P = 0.27), deoxyhemoglobin concentrations (P = 0.86) or sEMG activity (P = 0.92) throughout the AOT. These findings demonstrate that IPC does not preserve neural drive during an all-out 3 min isokinetic leg extension task.
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Affiliation(s)
- Samuel L. Halley
- Sport and Exercise ScienceSchool of Science and HealthWestern Sydney UniversitySydneyNew South WalesAustralia
| | - Paul Marshall
- Sport and Exercise ScienceSchool of Science and HealthWestern Sydney UniversitySydneyNew South WalesAustralia
| | - Jason C. Siegler
- Sport and Exercise ScienceSchool of Science and HealthWestern Sydney UniversitySydneyNew South WalesAustralia
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11
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Lee JH, Sim KC, Kwon HJ, Kim JW, Lee G, Cho SS, Choi SS, Leem JG. Effectiveness of lumbar epidural injection in patients with chronic spinal stenosis accompanying redundant nerve roots. Medicine (Baltimore) 2019; 98:e14490. [PMID: 30817564 PMCID: PMC6831256 DOI: 10.1097/md.0000000000014490] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Redundant nerve root syndrome (RNRS) is a phenomenon characterized by the presence of elongated, enlarged, tortuous nerve roots in the lumbar subarachnoid space. It is unclear whether RNRS is caused by spinal stenosis or causes these symptoms.This study evaluated the effects of lumbar epidural steroid injection (LESI) on patients with RNRS and assessed factors associated with RNRS. This retrospective observational cohort study was conducted at a single pain clinic of a university hospital.The medical records of 172 outpatients presenting with low back and/or leg pain from July to December 2014 were analyzed. Pain intensity (numeric rating scale [NRS]) and functional status were assessed at baseline and 2, 4, and 12 weeks after the LESI. Patients were considered moderate responders if they showed a 3-point or >30% reduction in baseline NRS, or said "better than 30%," "a little better," or "I feel an effect." Patients were considered substantial responders if they showed a 5-point or >50% reduction in baseline NRS, or said "better than 50%," "very good," or "much better." Generalized estimating equation (GEE) analysis was performed to identify the factors associated with moderate response to LESI. Factors associated with RNRS were also determined by logistic regression analysis.The proportions of both moderate and substantial responders at 2, 4, and 12 weeks were significantly lower in patients with than without RNRS. GEE analysis showed that RNRS were the only factor significantly associated with moderate response to LESI (OR = 0.400; 95% CI, 0.253-0.632; P < .001). The distance from the conus medullaris to the closest level of stenosis was shorter in patients with than without RNRS (P < .001) and was the only independent factor associated with RNRS on multivariate logistic regression analysis (OR = 0.972; P < .001).LESI was less effective in patients with than without RNRS. The only independent factor significantly associated with RNRS was the distance from the conus medullaris to the nearest moderate stenosis.
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Affiliation(s)
- Jong-Hyuk Lee
- Department of Anesthesiology and Pain Medicine, Asan Medical Center, University of Ulsan College of Medicine
| | - Ki-Choon Sim
- Department of Radiology, Korea University Anam Hospital, Korea University College of Medicine, Seoul
| | - Hyun-Jung Kwon
- Department of Anesthesiology and Pain Medicine, Asan Medical Center, University of Ulsan College of Medicine
| | - Jae-Won Kim
- Department of Anesthesiology and Pain Medicine, Asan Medical Center, University of Ulsan College of Medicine
| | - Gunn Lee
- Department of Anesthesiology and Pain Medicine, Asan Medical Center, University of Ulsan College of Medicine
| | - Seong-Sik Cho
- Department of Occupational and Environmental Medicine, College of Medicine, Dong-A University, Busan, Republic of Korea
| | - Seong-Soo Choi
- Department of Anesthesiology and Pain Medicine, Asan Medical Center, University of Ulsan College of Medicine
| | - Jeong-Gil Leem
- Department of Anesthesiology and Pain Medicine, Asan Medical Center, University of Ulsan College of Medicine
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Casas J, Guardiola E, Banos JE. [The scotomas as a metaphor in the work of Oliver Sacks]. Rev Neurol 2018; 67:187-191. [PMID: 30047121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
INTRODUCTION The use of medical metaphors is common in the social discourse and in the media. However, the use by physicians themselves to define different concepts to the original meaning of the medical word is rare. AIM To analyze the term «scotoma» in its metaphorical sense in the works of the neurologist and writer Oliver Sacks. DEVELOPMENT Sacks used scotoma metaphorically in two works, in the autobiographical book A leg to stand on and in an essay Scotoma: forgetting and neglect in science. In the first case, he used it to define the sensorial loss of his leg after an accident, which could be interpreted as a «mental scotoma». In the second case, Sacks analyzed the process and the reasons of forgetting the works of some early scientific discoverers and discussed why this happened. In this case, Sacks made an analogy with the process suffered by scientific discoveries and the reasons why some of them are largely ignored, in a situation that he called «historical» or «social scotoma». CONCLUSIONS Sacks does not use the term «scotoma» uniformly. When used to describe the sensorial loss of his leg, it might be considered that scotoma is there a second, although minor but accepted, meaning of the word. However, its use in the definition of historical neglect of early discoveries can be clearly defined as a medical metaphor in full sense.
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Affiliation(s)
- J Casas
- Universitat Autonoma de Barcelona. Facultat de Medicina, 08035 Barcelona, Espana
| | | | - J E Banos
- Universitat Pompeu Fabra, Barcelona, Espana
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Ren Y, Liu W, Li Y, Sun B, Li Y, Yang F, Wang H, Li M, Cui F, Huang X. Cutaneous somatic and autonomic nerve TDP-43 deposition in amyotrophic lateral sclerosis. J Neurol 2018; 265:1753-1763. [PMID: 29804146 DOI: 10.1007/s00415-018-8897-5] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2018] [Revised: 05/02/2018] [Accepted: 05/05/2018] [Indexed: 11/25/2022]
Abstract
OBJECTIVE To evaluate the involvement of the sensory and autonomic nervous system in amyotrophic lateral sclerosis (ALS) and to determine whether TDP-43/pTDP-43 deposits in skin nerve fibers signify a valuable biomarker for ALS. METHODS Eighteen patients with ALS and 18 age- and sex-matched control subjects underwent physical examinations, in addition to donating skin biopsies from the distal leg. The density of epidermal, Meissner's corpuscle (MC), sudomotor, and pilomotor nerve fibers were measured. Confocal microscopy was used to determine the cutaneous somatic and autonomic nerve fiber density and TDP-43/pTDP-43 deposition. RESULTS Intraepidermal nerve fiber density (IENFD) was reduced in individuals with ALS (P < 0.001). MC density (MCD) (P = 0.001), sweat gland nerve fiber density (SGNFD) (P < 0.001), and pilomotor nerve fiber density (PNFD) (P < 0.001) were all reduced in ALS patients. The SGNFD correlated with the small-fiber neuropathy Symptoms Inventory Questionnaire (SFN-SIQ), VAS and age. The SFN-SIQ was higher in ALS with sensory symptoms than without sensory symptoms (P = 0.000). Furthermore, the SFN-SIQ was higher in ALS with autonomic symptoms than without autonomic symptoms (P = 0.002). SFN-SIQ was higher in ALS patients that were pTDP-43 positive than pTDP-43 negative (P = 0.04), respectively. CONCLUSIONS We established in the peripheral nervous system that higher SFN-SIQ and VAS was involved in ALS, indicating the loss of SGNF. The deposition of TDP-43/pTDP-43 in ALS nerve fibers may indicate an important role in the underlying pathogenesis of ALS. This observation might be used as a potential biomarker for diagnosing ALS.
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Affiliation(s)
- Yuting Ren
- Department of Neurology, Chinese PLA General Hospital, 28 Fuxing Road, Haidian District, Beijing, 100853, China
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Wenxiu Liu
- Department of Neurology, Chinese PLA General Hospital, 28 Fuxing Road, Haidian District, Beijing, 100853, China
| | - Yifan Li
- Department of Neurology, Chinese PLA General Hospital, 28 Fuxing Road, Haidian District, Beijing, 100853, China
| | - Bo Sun
- Department of Neurology, Chinese PLA General Hospital, 28 Fuxing Road, Haidian District, Beijing, 100853, China
| | - Yanran Li
- Department of Neurology, Chinese PLA General Hospital, 28 Fuxing Road, Haidian District, Beijing, 100853, China
| | - Fei Yang
- Department of Neurology, Chinese PLA General Hospital, 28 Fuxing Road, Haidian District, Beijing, 100853, China
| | - Hongfen Wang
- Department of Neurology, Chinese PLA General Hospital, 28 Fuxing Road, Haidian District, Beijing, 100853, China
| | - Mao Li
- Department of Neurology, Chinese PLA General Hospital, 28 Fuxing Road, Haidian District, Beijing, 100853, China
| | - Fang Cui
- Department of Neurology, Chinese PLA General Hospital, 28 Fuxing Road, Haidian District, Beijing, 100853, China
| | - Xusheng Huang
- Department of Neurology, Chinese PLA General Hospital, 28 Fuxing Road, Haidian District, Beijing, 100853, China.
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Romano N, Zawaideh JP, Fischetti A, Lapucci C, Gennaro S, Muda A. Nerve ultrasound in emergency room: a case of traumatic ischiatic nerve neurotmesis. Med Ultrason 2018; 20:255-256. [PMID: 29730696 DOI: 10.11152/mu-1446] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
A 22 years-old-man was admitted to emergency after trauma. He suffered multiple deep cuts on his left leg. A lesion of the ischiatic nerve was suspected, and an ultrasound (US) evaluation was requested to confirm it. The study was conducted in the emergency room using a linear ultrasound transducer of 6-15 MHz and demonstrated the completely truncation of the ischiatic nerve (neurotmesis - Sunderland Grade V) with the proximal end retracted up to about 3cm from the edge of the wound. It was a very useful information for the neurosurgeon who after performed an end-to-end neurorrhaphy with suturation of perineurium. This short report underlines the importance of US, that thanks to its high spatial resolution and its time- and cost-effectiveness, can be considered a very important tool for the physician in emergency room to characterize peripheral nerve lesions.
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Affiliation(s)
- Nicola Romano
- Department of Radiology, University of Genoa, Italy.
| | | | | | - Caterina Lapucci
- Department of Neuroscience, Rehabilitation, Ophthalmology, Genetics and Maternal and Child Health (DINOGMI), University of Genoa, Ospedale Policlinico San Martino IRCCS, Genoa, Italy.
| | - Sergio Gennaro
- Department of Neurosurgery and Neurotraumatology, Polyclinic San Martino, Genoa.
| | - Alessandro Muda
- Department of Radiology, Polyclinic San Martino, Genoa, Italy.
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Abstract
RATIONALE A 45-year-old right-handed female patient suffered head trauma after being hit by a truck that ran into a house. PATIENT CONCERNS The patient lost consciousness for 1 hour and experienced posttraumatic amnesia for 1 month after the accident. DIAGNOSES She underwent conservative management for a subdural hematoma in the left frontotemporal lobes and intracerebral hematoma in the left frontal lobe. INTERVENTIONS The patient's Glasgow Coma Scale score was 11. She underwent a VP shunt operation, approached through the right posterior parietal area of the brain, at 4 months after onset. Approximately, 6 months after onset, she was admitted to the rehabilitation department of a university hospital. She presented with moderate weakness of the left leg: Medical Research Council scores: hip flexor; 3, knee extensor; 3+, ankle dorsiflexor; 3-. Brain magnetic resonance imaging revealed a leukomalactic lesion in the right posterior corona radiata along the shunt. OUTCOMES On 6-month (2 months after the shunt operation) diffusion tensor tractography, the left CST showed partial injury in the posterior portion compared with the right CST. On 6-month transcranial magnetic stimulation study, the motor-evoked potential obtained at the left tibialis anterior muscle revealed lower amplitude than that on the right side. LESSONS Injury of leg somatotopy of a CST was demonstrated in a patient with leg weakness following a VP shunt operation.
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Velasco R, Navarro X, Gil-Gil M, Herrando-Grabulosa M, Calls A, Bruna J. Neuropathic Pain and Nerve Growth Factor in Chemotherapy-Induced Peripheral Neuropathy: Prospective Clinical-Pathological Study. J Pain Symptom Manage 2017; 54:815-825. [PMID: 28797868 DOI: 10.1016/j.jpainsymman.2017.04.021] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/23/2017] [Revised: 03/11/2017] [Accepted: 04/12/2017] [Indexed: 12/27/2022]
Abstract
CONTEXT Neuropathic pain can be present in patients developing chemotherapy-induced peripheral neuropathy (CIPN). Nerve growth factor (NGF) is trophic to small sensory fibers and regulates nociception. OBJECTIVES We investigated the changes in serum NGF and intraepidermal nerve fiber density in skin biopsies of cancer patients receiving neurotoxic chemotherapy in a single-center prospective observational study. METHODS Patients were evaluated before and after chemotherapy administration. CIPN was graded with Total Neuropathy Score©, nerve conduction studies, and National Common Institute-Common Toxicity Criteria for Adverse Events scale. Neuropathic pain was defined according to the European Organization for Research and Treatment of Cancer Quality of Life Questionnaire-CIPN20 questionnaire. RESULTS Neuropathic pain was present in 13 of 60 patients (21%), who reported shooting or burning pain in the hands (n = 9) and the feet (n = 12). Patients displaying painful CIPN presented higher NGF after treatment compared with patients with painless or absent CIPN (8.7 ± 11.9 vs. 2.5 ± 1.4 pg/mL, P = 0.016). The change of NGF significantly correlated with neuropathic pain. Patients with painful CIPN did not show significant loss of IEFND compared with patients with painless or absent CIPN (6.16 ± 3.86 vs. 8.37 ± 4.82, P = 0.12). No correlation between IEFND and NGF was observed. CONCLUSION Serum NGF increases in cancer patients receiving taxane or platinum with painful CIPN, suggesting that it might be a potential biomarker of the presence and severity of neuropathic pain in this population. Long-term comprehensive studies to better define the course of NGF in relation with neurological outcomes would be helpful in the further design of therapies for CIPN-related neuropathic pain.
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Affiliation(s)
- Roser Velasco
- Neuro-Oncology Unit-IDIBELL, Hospital Universitari de Bellvitge-Institut Català d'Oncologia L'Hospitalet, Barcelona, Spain; Department of Cell Biology, Physiology and Immunology, Institute of Neurosciences, Universitat Autònoma de Barcelona, and Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), Bellaterra, Spain
| | - Xavier Navarro
- Department of Cell Biology, Physiology and Immunology, Institute of Neurosciences, Universitat Autònoma de Barcelona, and Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), Bellaterra, Spain
| | - Miguel Gil-Gil
- Neuro-Oncology Unit-IDIBELL, Hospital Universitari de Bellvitge-Institut Català d'Oncologia L'Hospitalet, Barcelona, Spain
| | - Mireia Herrando-Grabulosa
- Department of Cell Biology, Physiology and Immunology, Institute of Neurosciences, Universitat Autònoma de Barcelona, and Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), Bellaterra, Spain
| | - Aina Calls
- Department of Cell Biology, Physiology and Immunology, Institute of Neurosciences, Universitat Autònoma de Barcelona, and Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), Bellaterra, Spain
| | - Jordi Bruna
- Neuro-Oncology Unit-IDIBELL, Hospital Universitari de Bellvitge-Institut Català d'Oncologia L'Hospitalet, Barcelona, Spain; Department of Cell Biology, Physiology and Immunology, Institute of Neurosciences, Universitat Autònoma de Barcelona, and Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), Bellaterra, Spain.
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Elder CW, Yoo PB. Co-activation of saphenous nerve fibers: a potential therapeutic mechanism of percutaneous tibial nerve stimulation? Annu Int Conf IEEE Eng Med Biol Soc 2017; 2016:3129-3132. [PMID: 28268972 DOI: 10.1109/embc.2016.7591392] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Percutaneous tibial nerve stimulation (PTNS) is a minimally invasive and effective treatment for overactive bladder (OAB). However, clinical trials show that positive therapeutic outcomes among patients are difficult to predict (failure rate = 35% to 50%). Inconsistencies in the stimulation amplitudes used clinically and those used in preclinical animal studies led us to hypothesize that OAB therapy involves a secondary bladder-inhibitory pathway. In this paper, we implemented and tested a computer model of the human lower leg that investigated the differential activation of the saphenous nerve (SAFN) and tibial nerve (TN) during percutaneous electrical stimulation. Our preliminary findings show that concomitant activation of SAFN branches occurs during PTNS, which suggests the possibility that the SAFN may influence the clinical outcome of treatment.
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Abstract
BACKGROUND Chronic idiopathic axonal polyneuropathy (CIAP) is an insidiously progressive sensory or sensorimotor polyneuropathy that affects elderly people. Although severe disability or handicap does not occur, CIAP reduces quality of life. CIAP is diagnosed in 10% to 25% of people referred for evaluation of polyneuropathy. There is a need to gather and review emerging evidence on treatments, as the number of people affected is likely to increase in ageing populations. This is an update of a review first published in 2004 and previously updated in 2006, 2008, 2011 and 2013. OBJECTIVES To assess the effects of drug therapy for chronic idiopathic axonal polyneuropathy for reducing disability and ameliorating neurological symptoms and associated impairments, and to assess any adverse effects of treatment. SEARCH METHODS In July 2016, we searched Cochrane Central Register of Controlled Trials and the Cochrane Database of Systematic Reviews in the Cochrane Library, MEDLINE, Embase, and the Web of Science. We searched two trials registries for ongoing trials. We also handsearched the reference lists of relevant articles, reviews and textbooks identified electronically, and we would have contacted authors and other experts in the field to identify additional studies if this seemed useful. SELECTION CRITERIA We sought all randomised or quasi-randomised (alternate or other systematic treatment allocation) trials that examined the effects of any drug therapy in people with CIAP at least one year after the onset of treatment. People with CIAP had to fulfil the following criteria: age 40 years or older, distal sensory or sensorimotor polyneuropathy, absence of systemic or other neurological disease, chronic clinical course not reaching a nadir in less than two months, exclusion of any recognised cause of the polyneuropathy by medical history taking, clinical or laboratory investigations, and electrophysiological studies in agreement with axonal polyneuropathy, without evidence of demyelinating features. The primary outcome was the proportion of participants with a significant improvement in disability. Secondary outcomes were change in the mean disability score, change in the proportion of participants who make use of walking aids, change in the mean Medical Research Council sum score, degree of pain relief and/or reduction of other positive sensory symptoms, change in the proportion of participants with pain or other positive sensory symptoms, and frequency of adverse effects. DATA COLLECTION AND ANALYSIS Two review authors independently reviewed the results of the literature search and extracted details of trial methodology and outcome data of all potentially relevant trials. MAIN RESULTS We identified 39 studies and assessed them for possible inclusion in the review, but we excluded all of them because of insufficient quality or lack of relevance. We summarised evidence from non-randomised studies in the Discussion. AUTHORS' CONCLUSIONS Even though CIAP has been clearly described and delineated, no adequate randomised or quasi-randomised controlled clinical treatment trials have been performed. In their absence there is no proven efficacious drug therapy.
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Affiliation(s)
- Janna Warendorf
- Brain Center Rudolf Magnus, University Medical Center UtrechtDepartment of NeurologyHeidelberglaan 100UtrechtNetherlands3584 CX
| | - Alexander FJE Vrancken
- University Medical Center Utrecht, Brain Center Rudolf MagnusDepartment of NeurologyUtrechtNetherlands
| | - Ivo N van Schaik
- Academic Medical Centre, University of AmsterdamDepartment of NeurologyMeibergdreef 9PO Box 22700AmsterdamNetherlands1100 DE
| | - Richard AC Hughes
- National Hospital for Neurology and NeurosurgeryMRC Centre for Neuromuscular DiseasesPO Box 114Queen SquareLondonUKWC1N 3BG
| | - Nicolette C Notermans
- Brain Center Rudolf Magnus, University Medical Center UtrechtDepartment of NeurologyHeidelberglaan 100UtrechtNetherlands3584 CX
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Rivas E, Smith JD, Sherman NW. Leg compressions improve ventilatory efficiency while reducing peak and post exercise blood lactate, but does not improve perceived exertion, exercise economy or aerobic exercise capacity in endurance-trained runners. Respir Physiol Neurobiol 2016; 237:1-6. [PMID: 28013058 DOI: 10.1016/j.resp.2016.12.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2016] [Revised: 11/02/2016] [Accepted: 12/05/2016] [Indexed: 11/19/2022]
Abstract
PURPOSE The objective of this study was to determine if leg compressions would alter cardiorespiratory and perceived exertion measures during rest, submaximal and maximal exercise in endurance-trained runners. METHOD Thirteen young, endurance trained runners (10 males, 20.9±3y, 58.9±5.7mlkgmin-1) completed a randomized design, leg compressions and non-compression control condition. The incremental graded exercise test consisted of baseline rest and submaximal intensities at 23%, 70%, 75%, 85% and then a progressive increase to 100% VO2max. Running economy (RE), rating of perceived exertion (RPE), breathing rate (BR), heart rate (HR), ventilation (VE), blood lactate, VO2max and ventilatory efficiency (VE/VO2) were the primary outcome variables. RESULTS Relative to the control condition, VO2 at rest, during submaximal and at max were not different. Additionally, RE, RPE, BR, and HR were similar under both conditions. Leg compressions reduced lactate at VO2max by 11% (P<0.05) and at 10min post-exercise recovery by 18% (P<0.01). Additionally, peak VE was significantly reduced in the compression condition by 8% (P<0.0001) relative to the control condition. Ventilatory efficiency was improved in compressions compared to control condition at 85 and 100% VO2max (condition×time interaction, P<0.0001). CONCLUSION These data suggest that leg compressions do not alter RE, RPE, BR, HR, or VO2, during exercise. However, compressions may be beneficial for submaximal and maximal ventilatory efficiency while improving lactate clearance at VO2max and during recovery in trained runners.
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Affiliation(s)
- Eric Rivas
- Division of Rehabilitation Sciences, The University of Texas Medical Branch at Galveston, Galveston, TX, USA.
| | - John D Smith
- College of Education and Human Development, Texas A&M University-San Antonio, San Antonio, TX, USA
| | - Nestor W Sherman
- Department of Health & Kinesiology, Human Performance Laboratory, Texas A&M University-Kingsville, Kingsville, TX, USA
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Kato Y, Endo H, Kizuka T, Asami T. Stimulus–Response Compatibility and Response Preparation: Effects on Motor Component of Information Processing for Upper and Lower Limb Responses. Percept Mot Skills 2016; 101:684-94. [PMID: 16491672 DOI: 10.2466/pms.101.3.684-694] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
The effects of stimulus-response compatibility and response preparation on the motor component of the information processing system were investigated by analyzing the fractionated reaction time for the upper and lower limbs. The reaction time was divided into two periods with respect to the onset of electromyographic activity, premotor and motor times. The response preparation was manipulated by the probability that the locations of the precue and subsequent imperative stimulus corresponded. On a stimulus-response compatible task, subjects were required to release a key on the same side as an imperative stimulus, irrespective of the precued side. On an incompatible task, subjects were required to act in the reverse manner. The upper and lower limb responses were measured during both tasks. A repeated-measures design was used with 12 male university students. Analysis of the reaction and premotor times indicated that the stimulus-response compatibility effect became larger as response preparation decreased. The analysis of motor time yielded significant interactions between stimulus-response compatibility and limb and between response preparation and limb. These findings indicated that the motor component of information processing for the lower limb response is affected by both stimulus-response compatibility and response preparation.
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Affiliation(s)
- Yuichiro Kato
- Institute for Human Science and Biomedical Engineering, National Institute of Advanced Industrial Science and Technology, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8566, Japan.
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Gohel MS. Commentary on 'Lateral Fasciectomy Sparing the Superficial Peroneal Nerve with Simultaneous Mesh Graft in Non-Healing Lateral Ulcers of Diverse Vascular Origins: Surgical Technique, Short- and Long-term Results from 44 Legs'. Eur J Vasc Endovasc Surg 2016; 52:233. [PMID: 27321550 DOI: 10.1016/j.ejvs.2016.05.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2016] [Accepted: 05/20/2016] [Indexed: 11/19/2022]
Affiliation(s)
- M S Gohel
- Cambridge Vascular Unit, Addenbrooke's Hospital, Cambridge, UK.
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22
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Kaiser R. [Surgical treatment of lower extremity peripheral nerve injuries]. Cas Lek Cesk 2016; 155:16-20. [PMID: 27256143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Peripheral nerve injuries of the lower extremities are not frequent. The most common are traction injury of the peroneal nerve at the knee level or iatrogenic trauma of the pelvic nerves during abdominal surgery. Civil sharp injuries are rare.Indications for surgical revision follow the general rules of nerve surgery. Sharp injury should be treated as soon as possible, ideally within 72 hours. Closed lesions are indicated for surgery if a complete denervation remains unchanged three months after the injury. Best results can be achieved within six months from the injury. Irritations caused by bone fragments or scarring or by iatrogenic injury (clamps, cement, screws, etc.) may be revised later. However, the most important is early clinical examination in a specialized neurosurgical department.
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Abstract
Pseudo-radicular leg pain as initially described by Bruegger more than 55 years ago was at that time a genius explanation for so many non-radicular pain syndromes that needed not any kind of surgical intervention but in first line a manual treatment or a treatment by therapeutic local anesthetics. Today we describe this pain as a "referred pain" originating from other anatomic structures that may occur during the development of chronic pain. Nevertheless this pain is found in many patients and it still seems to be a big problem for many physicians and surgeons. Imaging does not help either. The history and the clinical symptoms, the examinations, the chain reactions in the motor system as well as the treatment options from the point of view of manual medicine are described.
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Affiliation(s)
- W von Heymann
- Orthopädische Praxis, Mendestr. 7, 28203, Bremen, Deutschland.
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24
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Abstract
The study was aimed to observe the morphology of intraepidermal nerve fibre (IENF) and to explore the relationships between intraepidermal nerve fibre density (IENFD) and anatomic sites, age, genders and races. Intraepidermal nerve fibre was observed using immunohistochemistry. The relationships between IENFD and anatomic sites, ages, genders and races were analysed by quantitative analysis of IENFD. Five patterns of the IENFs were observed according to the morphological classification. A significant difference was observed in IENFD between different anatomic sites (P < 0.05). A linear negative correlation was observed between IENFD and age (r = - 0.2931, P < 0.01). No significant difference was found between IENFD and genders. Intraepidermal nerve fibre density at distal leg of Chinese (395.54 ± 166.92) was higher than that of Finnish (114.62 ± 32.32, P < 0.01). Skin biopsy may be an effective tool in quantitation of IENFD in healthy individuals. Intraepidermal nerve fibre density is independent of genders, and closely associated with anatomic sites, races and ages.
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Schless SH, Desloovere K, Aertbeliën E, Molenaers G, Huenaerts C, Bar-On L. The Intra- and Inter-Rater Reliability of an Instrumented Spasticity Assessment in Children with Cerebral Palsy. PLoS One 2015; 10:e0131011. [PMID: 26134673 PMCID: PMC4489837 DOI: 10.1371/journal.pone.0131011] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2015] [Accepted: 05/26/2015] [Indexed: 11/19/2022] Open
Abstract
Aim Despite the impact of spasticity, there is a lack of objective, clinically reliable and valid tools for its assessment. This study aims to evaluate the reliability of various performance- and spasticity-related parameters collected with a manually controlled instrumented spasticity assessment in four lower limb muscles in children with cerebral palsy (CP). Method The lateral gastrocnemius, medial hamstrings, rectus femoris and hip adductors of 12 children with spastic CP (12.8 years, ±4.13 years, bilateral/unilateral involvement n=7/5) were passively stretched in the sagittal plane at incremental velocities. Muscle activity, joint motion, and torque were synchronously recorded using electromyography, inertial sensors, and a force/torque load-cell. Reliability was assessed on three levels: (1) intra- and (2) inter-rater within session, and (3) intra-rater between session. Results Parameters were found to be reliable in all three analyses, with 90% containing intra-class correlation coefficients >0.6, and 70% of standard error of measurement values <20% of the mean values. The most reliable analysis was intra-rater within session, followed by intra-rater between session, and then inter-rater within session. The Adds evaluation had a slightly lower level of reliability than that of the other muscles. Conclusions Limited intrinsic/extrinsic errors were introduced by repeated stretch repetitions. The parameters were more reliable when the same rater, rather than different raters performed the evaluation. Standardisation and training should be further improved to reduce extrinsic error when different raters perform the measurement. Errors were also muscle specific, or related to the measurement set-up. They need to be accounted for, in particular when assessing pre-post interventions or longitudinal follow-up. The parameters of the instrumented spasticity assessment demonstrate a wide range of applications for both research and clinical environments in the quantification of spasticity.
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Affiliation(s)
- Simon-Henri Schless
- Clinical Motion Analysis Laboratory, University Hospital Leuven, Leuven, Belgium
- Department of Rehabilitation Sciences, KU Leuven, Leuven, Belgium
- * E-mail:
| | - Kaat Desloovere
- Clinical Motion Analysis Laboratory, University Hospital Leuven, Leuven, Belgium
- Department of Rehabilitation Sciences, KU Leuven, Leuven, Belgium
| | - Erwin Aertbeliën
- Department of Mechanical Engineering, KU Leuven, Leuven, Belgium
| | - Guy Molenaers
- Clinical Motion Analysis Laboratory, University Hospital Leuven, Leuven, Belgium
- Departments of Development and Regeneration, KU Leuven, Leuven, Belgium
- Department of Orthopaedic Medicine, University Hospital Leuven, Leuven, Belgium
| | - Catherine Huenaerts
- Clinical Motion Analysis Laboratory, University Hospital Leuven, Leuven, Belgium
| | - Lynn Bar-On
- Clinical Motion Analysis Laboratory, University Hospital Leuven, Leuven, Belgium
- Department of Rehabilitation Sciences, KU Leuven, Leuven, Belgium
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Phillips FM. CORR Insights(®): Recurrent Versus Primary Lumbar Disc Herniation Surgery: Patient-reported Outcomes in the Swedish Spine Register Swespine. Clin Orthop Relat Res 2015; 473:1985-7. [PMID: 24832827 PMCID: PMC4419003 DOI: 10.1007/s11999-014-3669-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/14/2014] [Accepted: 04/25/2014] [Indexed: 01/31/2023]
Affiliation(s)
- Frank M Phillips
- Rush University Medical Center, 1611 W Harrison Street, Suite 300, Chicago, IL, 60612, USA,
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Jäckel K, Braschler T, Jochum W, Hülder T, Knechtle B. [How is agonizing leg pain associated with an intrauterine device?]. Praxis (Bern 1994) 2015; 104:517-522. [PMID: 26098054 DOI: 10.1024/1661-8157/a002002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
We report on a typical clinical course of pelvic actinomycosis: initial uncharacteristic discomfort develops into a systemic illness associated with a pelvic mass, which progresses so fast that along with the systemic infection further symptoms can be reduced to its growth rate--tiredness, abdominal pain, micturition deficiency, and leg pain. Distinction between malignancy and pelvic actinomycosis could be made only intraoperative. After hysterectomy and with antibiotics the patient recovered quickly.
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Skidmore J, Artemiadis P. Unilateral Floor Stiffness Perturbations Systematically Evoke Contralateral Leg Muscle Responses: A New Approach to Robot-Assisted Gait Therapy. IEEE Trans Neural Syst Rehabil Eng 2015; 24:467-74. [PMID: 25872216 DOI: 10.1109/tnsre.2015.2421822] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
A variety of robotic rehabilitation devices have been proposed for gait rehabilitation after stoke, but have only produced moderate results when compared to conventional physiotherapy. We suggest a novel approach to robotic interventions which takes advantage of mechanisms of inter-limb coordination. In order to test the viability of this approach, we apply unilateral floor stiffness perturbations via a unique robotic device and observe evoked contralateral leg responses in kinematics, as well as muscle activations, in healthy subjects. The real-time control of floor stiffness is utilized to uniquely differentiate force and kinematic feedback, creating novel sensory perturbations. We present results of repeatable and scalable evoked kinematic and muscular response of the unperturbed leg in healthy subjects. Moreover, we provide insight into the fundamental sensorimotor mechanisms of inter-leg coordination. We also lay the foundation for model-based rehabilitation strategies for impaired walkers by presenting a mathematical model that accurately describes the relationship between the magnitude of the stiffness perturbation and the evoked muscle activity. One of the most significant advantages of this approach over current practices is the safety of the patient, since this does not require any direct manipulation of the impaired leg. The novel methods and results presented in this paper set the foundation for a paradigm shift in robotic interventions for gait rehabilitation.
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Alibeji N, Kirsch N, Farrokhi S, Sharma N. Further Results on Predictor-Based Control of Neuromuscular Electrical Stimulation. IEEE Trans Neural Syst Rehabil Eng 2015; 23:1095-105. [PMID: 25850093 DOI: 10.1109/tnsre.2015.2418735] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Electromechanical delay (EMD) and uncertain nonlinear muscle dynamics can cause destabilizing effects and performance loss during closed-loop control of neuromuscular electrical stimulation (NMES). Linear control methods for NMES often perform poorly due to these technical challenges. A new predictor-based closed-loop controller called proportional integral derivative controller with delay compensation (PID-DC) is presented in this paper. The PID-DC controller was designed to compensate for EMDs during NMES. Further, the robust controller can be implemented despite uncertainties or in the absence of model knowledge of the nonlinear musculoskeletal dynamics. Lyapunov stability analysis was used to synthesize the new controller. The effectiveness of the new controller was validated and compared with two recently developed nonlinear NMES controllers, through a series of closed-loop control experiments on four able-bodied human subjects. Experimental results depict statistically significant improved performance with PID-DC. The new controller is shown to be robust to variations in an estimated EMD value.
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Selgrade BP, Chang YH. Locomotor control of limb force switches from minimal intervention principle in early adaptation to noise reduction in late adaptation. J Neurophysiol 2015; 113:1451-61. [PMID: 25475343 PMCID: PMC4346725 DOI: 10.1152/jn.00246.2014] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2014] [Accepted: 12/01/2014] [Indexed: 11/22/2022] Open
Abstract
During movement, errors are typically corrected only if they hinder performance. Preferential correction of task-relevant deviations is described by the minimal intervention principle but has not been demonstrated in the joints during locomotor adaptation. We studied hopping as a tractable model of locomotor adaptation of the joints within the context of a limb-force-specific task space. Subjects hopped while adapting to shifted visual feedback that induced them to increase peak ground reaction force (GRF). We hypothesized subjects would preferentially reduce task-relevant joint torque deviations over task-irrelevant deviations to increase peak GRF. We employed a modified uncontrolled manifold analysis to quantify task-relevant and task-irrelevant joint torque deviations for each individual hop cycle. As would be expected by the explicit goal of the task, peak GRF errors decreased in early adaptation before reaching steady state during late adaptation. Interestingly, during the early adaptation performance improvement phase, subjects reduced GRF errors by decreasing only the task-relevant joint torque deviations. In contrast, during the late adaption performance maintenance phase, all torque deviations decreased in unison regardless of task relevance. In deadaptation, when the shift in visual feedback was removed, all torque deviations decreased in unison, possibly because performance improvement was too rapid to detect changes in only the task-relevant dimension. We conclude that limb force adaptation in hopping switches from a minimal intervention strategy during performance improvement to a noise reduction strategy during performance maintenance, which may represent a general control strategy for locomotor adaptation of limb force in other bouncing gaits, such as running.
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Affiliation(s)
- Brian P Selgrade
- School of Applied Physiology, Georgia Institute of Technology, Atlanta, Georgia
| | - Young-Hui Chang
- School of Applied Physiology, Georgia Institute of Technology, Atlanta, Georgia
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Suriyuth J, Phornphutkul C, Mahakkanukrauh P. Anatomical relationship between the deep peroneal nerve and the anterolateral surface of the tibia in Thai cadavers. J Med Assoc Thai 2015; 98:207-211. [PMID: 25842803] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
BACKGROUND The deep peroneal nerve innervates muscles of the anterior leg compartment and the dorsum of the foot, and also receives sensation from the first interdigital cleft of the foot. Along its course in lower part of the leg, this nerve is very close to the anterolateral surface of the tibia and might be vulnerable to injury in fractures of the tibia or during surgery. OBJECTIVE The objective of this study is to clarify the relationship between the deep peroneal nerve and anterolateral surface of tibia. MATERIAL AND METHOD Variations in the course of the deep peroneal nerve related to the anterolateral surface of tibia were investigated by dissection of 82 legs from 45 fresh cadavers. The distance by which the deep peroneal nerve was directly contacted to the tibia was measured and compared to the length from the tibial tuberosity to the medial malleolus. The length of that association, as a percentage ofthe distance from the tibial tuberosity to the medial malleolus, was calculated. RESULTS The fraction of the distance along which the deep peroneal nerve was in direct contact with the anterolateral surface of the tibia as a percentage of the distance between the tibial tuberosity and the medial malleolus ranged from 40.38% to 84.11%, with an average of 64.87% (95% confidence interval: 63.23-66.52%). In the majority of the legs studied (52.44%), the percentage range between 60-70%. CONCLUSION An majority of the deep peroneal nerve was directly in contact with the anterolateral surface of tibia and ranged from 60-70% of the distance between tibia tuberosity and medial malleolus. Surgical incision along this area should be carefully performed.
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Füessl HS. [Image of the anatomy of the skin]. MMW Fortschr Med 2014; 156:46. [PMID: 25543370] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
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Nakajima T, Mezzarane RA, Hundza SR, Komiyama T, Zehr EP. Convergence in reflex pathways from multiple cutaneous nerves innervating the foot depends upon the number of rhythmically active limbs during locomotion. PLoS One 2014; 9:e104910. [PMID: 25170606 PMCID: PMC4149341 DOI: 10.1371/journal.pone.0104910] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2014] [Accepted: 07/16/2014] [Indexed: 11/19/2022] Open
Abstract
Neural output from the locomotor system for each arm and leg influences the spinal motoneuronal pools directly and indirectly through interneuronal (IN) reflex networks. While well documented in other species, less is known about the functions and features of convergence in common IN reflex system from cutaneous afferents innervating different foot regions during remote arm and leg movement in humans. The purpose of the present study was to use spatial facilitation to examine possible convergence in common reflex pathways during rhythmic locomotor limb movements. Cutaneous reflexes were evoked in ipsilateral tibialis anterior muscle by stimulating (in random order) the sural nerve (SUR), the distal tibial nerve (TIB), and combined simultaneous stimulation of both nerves (TIB&SUR). Reflexes were evoked while participants performed rhythmic stepping and arm swinging movement with both arms and the leg contralateral to stimulation (ARM&LEG), with just arm movement (ARM) and with just contralateral leg movement (LEG). Stimulation intensities were just below threshold for evoking early latency (<80 ms to peak) reflexes. For each stimulus condition, rectified EMG signals were averaged while participants held static contractions in the stationary (stimulated) leg. During ARM&LEG movement, amplitudes of cutaneous reflexes evoked by combined TIB&SUR stimulation were significantly larger than simple mathematical summation of the amplitudes evoked by SUR or TIB alone. Interestingly, this extra facilitation seen during combined nerve stimulation was significantly reduced when performing ARM or LEG compared to ARM&LEG. We conclude that locomotor rhythmic limb movement induces excitation of common IN reflex pathways from cutaneous afferents innervating different foot regions. Importantly, activity in this pathway is most facilitated during ARM&LEG movement. These results suggest that transmission in IN reflex pathways is weighted according to the number of limbs directly engaged in human locomotor activity and underscores the importance of arm swing to support neuronal excitability in leg muscles.
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Affiliation(s)
- Tsuyoshi Nakajima
- Department of Integrative Physiology, Kyorin University School of Medicine, Tokyo, Japan
- Rehabilitation Neuroscience Laboratory, University of Victoria, Victoria, BC, Canada
| | - Rinaldo A. Mezzarane
- Rehabilitation Neuroscience Laboratory, University of Victoria, Victoria, BC, Canada
- Laboratory of Signal Processing and Motor Control, College of Physical Education, University of Brasília, Brasília, Brazil
| | - Sandra R. Hundza
- Motion and Mobility Rehabilitation Laboratory, University of Victoria, Victoria, BC, Canada
- Human Discovery Science, International Collaboration on Repair Discoveries (ICORD), Vancouver, BC, Canada
- Centre for Biomedical Research, University of Victoria, Victoria, BC, Canada
| | | | - E. Paul Zehr
- Rehabilitation Neuroscience Laboratory, University of Victoria, Victoria, BC, Canada
- Human Discovery Science, International Collaboration on Repair Discoveries (ICORD), Vancouver, BC, Canada
- Centre for Biomedical Research, University of Victoria, Victoria, BC, Canada
- Division of Medical Sciences, University of Victoria, Victoria, BC, Canada
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Rankin BL, Buffo SK, Dean JC. A neuromechanical strategy for mediolateral foot placement in walking humans. J Neurophysiol 2014; 112:374-83. [PMID: 24790168 PMCID: PMC4064420 DOI: 10.1152/jn.00138.2014] [Citation(s) in RCA: 100] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2014] [Accepted: 04/27/2014] [Indexed: 11/22/2022] Open
Abstract
Stability is an important concern during human walking and can limit mobility in clinical populations. Mediolateral stability can be efficiently controlled through appropriate foot placement, although the underlying neuromechanical strategy is unclear. We hypothesized that humans control mediolateral foot placement through swing leg muscle activity, basing this control on the mechanical state of the contralateral stance leg. Participants walked under Unperturbed and Perturbed conditions, in which foot placement was intermittently perturbed by moving the right leg medially or laterally during the swing phase (by ∼50-100 mm). We quantified mediolateral foot placement, electromyographic activity of frontal-plane hip muscles, and stance leg mechanical state. During Unperturbed walking, greater swing-phase gluteus medius (GM) activity was associated with more lateral foot placement. Increases in GM activity were most strongly predicted by increased mediolateral displacement between the center of mass (CoM) and the contralateral stance foot. The Perturbed walking results indicated a causal relationship between stance leg mechanics and swing-phase GM activity. Perturbations that reduced the mediolateral CoM displacement from the stance foot caused reductions in swing-phase GM activity and more medial foot placement. Conversely, increases in mediolateral CoM displacement caused increased swing-phase GM activity and more lateral foot placement. Under both Unperturbed and Perturbed conditions, humans controlled their mediolateral foot placement by modulating swing-phase muscle activity in response to the mechanical state of the contralateral leg. This strategy may be disrupted in clinical populations with a reduced ability to modulate muscle activity or sense their body's mechanical state.
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Affiliation(s)
- Bradford L Rankin
- Division of Physical Therapy, College of Health Professions, Medical University of South Carolina, Charleston, South Carolina; and
| | - Stephanie K Buffo
- Division of Physical Therapy, College of Health Professions, Medical University of South Carolina, Charleston, South Carolina; and
| | - Jesse C Dean
- Division of Physical Therapy, College of Health Professions, Medical University of South Carolina, Charleston, South Carolina; and Ralph H. Johnson Department of Veterans Affairs Medical Center, Charleston, South Carolina
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Scheidl E, Böhm J, Simó M, Bereznai B, Bereczki D, Arányi Z. Different patterns of nerve enlargement in polyneuropathy subtypes as detected by ultrasonography. Ultrasound Med Biol 2014; 40:1138-1145. [PMID: 24613217 DOI: 10.1016/j.ultrasmedbio.2013.12.020] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2013] [Revised: 12/11/2013] [Accepted: 12/12/2013] [Indexed: 06/03/2023]
Abstract
The purpose of our study was to examine how the pathologic type of polyneuropathy affects nerve size as assessed by high-resolution ultrasonography with a 15 MHz transducer. Cross-sectional area (CSA) of the C5-C7 nerve roots and several upper and lower limb nerves at multiple sites was measured in 38 patients with acquired diffuse sensorimotor demyelinating or axonal polyneuropathy and in 34 healthy control subjects. Significant differences were found among the groups for all nerve and root segments: Both types of polyneuropathy are characterized by nerve enlargement in comparison to controls, but in different patterns. In demyelinating polyneuropathies, an additional degree of nerve thickening appears in proximal upper limb nerves and cervical nerve roots compared with axonal polyneuropathies. With respect to the other nerves, a similar degree of nerve enlargement was observed in both patient groups. These results highlight that ultrasonography may be a complementary tool in differentiating polyneuropathies.
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Affiliation(s)
- Erika Scheidl
- Department of Neurology, Semmelweis University, Budapest, Hungary.
| | - Josef Böhm
- Department of Neurology, Freiberg County Hospital, Freiberg, Germany
| | - Magdolna Simó
- Department of Neurology, Semmelweis University, Budapest, Hungary
| | | | - Dániel Bereczki
- Department of Neurology, Semmelweis University, Budapest, Hungary
| | - Zsuzsanna Arányi
- Department of Neurology, Semmelweis University, Budapest, Hungary
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Panov VM, Fesenko UA, Kutsyn VM. [Improvement of approach to performance of lumbar sympathetic blockade in patients with tissue ischemia of the lower extremities]. Klin Khir 2014:46-49. [PMID: 25252554] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
New access for performance of sympathic blockade in region of aortal bifurcation, was elaborated, basing on calculations, conducted on 30 spiral computeric tomograms of lumbar and sacral parts of vertebral column. Application of the method permits to escape such complications, as a renal and the main vessels damage, the sympathetic nerves blockade, do not demand roentgenological control.
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Abstract
We evaluated a serial change in peripheral neuropathy (PN) severity during treatment with bortezomib (Bor) or lenalidomide (Len) using the Functional Assessment of Cancer Therapy scale/Gynecologic Oncology Group-Neurotoxicity (FACT/GOG-Ntx). The patient suffered from grade 2 PN and exhibited a dramatic decrease in FACT/GOG-Ntx score after intravenous and subcutaneous Bor therapy. Thereafter, he received seven cycles of Len therapy, which exacerbated existing PN; he experienced mild numbness and exhibited a transient decrease in FACT/GOG-Ntx score. Interestingly, FACT/GOG-Ntx score increased to baseline and numbness was ameliorated during the Len washout period in every cycle.
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Cahill KS, Martinez JL, Vanni S, Wang MY, Levi AD. Response. J Neurosurg Spine 2014; 20:120-121. [PMID: 24524122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
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Abstract
The clinical application of robotic technology to powered prosthetic knees and ankles is limited by the lack of a robust control strategy. We found that the use of electromyographic (EMG) signals from natively innervated and surgically reinnervated residual thigh muscles in a patient who had undergone knee amputation improved control of a robotic leg prosthesis. EMG signals were decoded with a pattern-recognition algorithm and combined with data from sensors on the prosthesis to interpret the patient's intended movements. This provided robust and intuitive control of ambulation--with seamless transitions between walking on level ground, stairs, and ramps--and of the ability to reposition the leg while the patient was seated.
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Affiliation(s)
- Levi J Hargrove
- Center for Bionic Medicine, Rehabilitation Institute of Chicago, and the Department of Physical Medicine and Rehabilitation, Northwestern University, Chicago, Illinois 60611, USA.
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Abstract
BACKGROUND This review is an update of a review first published in Issue 2, 2003, which was substantially updated in Issue 7, 2010. The concept that many neuropathic pain syndromes (traditionally this definition would include complex regional pain syndromes (CRPS)) are "sympathetically maintained pains" has historically led to treatments that interrupt the sympathetic nervous system. Chemical sympathectomies use alcohol or phenol injections to destroy ganglia of the sympathetic chain, while surgical ablation is performed by open removal or electrocoagulation of the sympathetic chain or by minimally invasive procedures using thermal or laser interruption. OBJECTIVES To review the evidence from randomised, double blind, controlled trials on the efficacy and safety of chemical and surgical sympathectomy for neuropathic pain, including complex regional pain syndrome. Sympathectomy may be compared with placebo (sham) or other active treatment, provided both participants and outcome assessors are blind to treatment group allocation. SEARCH METHODS On 2 July 2013, we searched CENTRAL, MEDLINE, EMBASE, and the Oxford Pain Relief Database. We reviewed the bibliographies of all randomised trials identified and of review articles and also searched two clinical trial databases, ClinicalTrials.gov and the WHO International Clinical Trials Registry Platform, to identify additional published or unpublished data. We screened references in the retrieved articles and literature reviews and contacted experts in the field of neuropathic pain. SELECTION CRITERIA Randomised, double blind, placebo or active controlled studies assessing the effects of sympathectomy for neuropathic pain and CRPS. DATA COLLECTION AND ANALYSIS Two review authors independently assessed trial quality and validity, and extracted data. No pooled analysis of data was possible. MAIN RESULTS Only one study satisfied our inclusion criteria, comparing percutaneous radiofrequency thermal lumbar sympathectomy with lumbar sympathetic neurolysis using phenol in 20 participants with CRPS. There was no comparison of sympathectomy versus sham or placebo. No dichotomous pain outcomes were reported. Average baseline scores of 8-9/10 on several pain scales fell to about 4/10 initially (1 day) and remained at 3-5/10 over four months. There were no significant differences between groups, except for "unpleasant sensation", which was higher with radiofrequency ablation. One participant in the phenol group experienced post sympathectomy neuralgia, while two in the radiofrequency group and one in the phenol group complained of paraesthesia during needle positioning. All participants had soreness at the injection site. AUTHORS' CONCLUSIONS The practice of surgical and chemical sympathectomy for neuropathic pain and CRPS is based on very little high quality evidence. Sympathectomy should be used cautiously in clinical practice, in carefully selected patients, and probably only after failure of other treatment options. In these circumstances, establishing a clinical register of sympathectomy may help to inform treatment options on an individual patient basis.
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Affiliation(s)
- Sebastian Straube
- University of AlbertaDepartment of Medicine, Division of Preventive Medicine5‐30 University Terrace8303‐112 StreetEdmontonABCanadaT6G 2T4
| | | | | | - Peter Cole
- Churchill Hospital, Oxford University Hospitals NHS TrustOxford Pain Relief UnitOld Road HeadingtonOxfordUKOX3 7LE
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Jetté F, Côté I, Meziane HB, Mercier C. Effect of single-session repetitive transcranial magnetic stimulation applied over the hand versus leg motor area on pain after spinal cord injury. Neurorehabil Neural Repair 2013; 27:636-43. [PMID: 23579183 DOI: 10.1177/1545968313484810] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
BACKGROUND Neuropathic pain often follows spinal cord injury (SCI). OBJECTIVE To compare the effect of repetitive transcranial magnetic stimulation (rTMS) applied over different motor cortex targets (hand vs leg area) versus sham stimulation on neuropathic pain and local neurophysiological changes in patients with SCI. METHODS A total of 16 patients with complete or incomplete motor SCI and chronic neuropathic pain participated in a double-blind, cross-over randomized study. Three single sessions of sham or active rTMS (10 Hz, total of 2000 stimuli) were applied in random order over the hand or leg area with a minimal 2-week interval. THE MAIN OUTCOME MEASURES: were the numeric rating scale for pain sensation and parameters derived from motor mapping of the first dorsal interosseous muscle, including maximal amplitude of evoked response as well as map area, volume, and location. RESULTS rTMS applied to either the hand or the leg area, but not sham stimulation, induced a significant but equivalent reduction in pain for the first 48 hours postintervention (P < .05). Participants with an incomplete lesion showed greater analgesia than those with a complete lesion (21% vs. 3%, respectively; P < .05). The main change observed for motor map measurements was an increase in corticospinal excitability after stimulation of the hand area (P = .04) but not for the other conditions. CONCLUSION rTMS applied over the hand or leg motor cortex decreased neuropathic pain regardless of any change in cortical excitability, suggesting that the analgesic effect is not associated with local changes at the motor cortex level itself.
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Affiliation(s)
- Fanny Jetté
- Centre Interdisciplinaire de Recherche en Réadaptation et Intégration Sociale, Québec, QC, Canada
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Garg A, Harkey G, Sundaram M. Acute denervation injury. Orthopedics 2013; 36:661, 730-1. [PMID: 24024989 DOI: 10.3928/01477447-20130821-01] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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Ammendolia C, Stuber KJ, Rok E, Rampersaud R, Kennedy CA, Pennick V, Steenstra IA, de Bruin LK, Furlan AD. Nonoperative treatment for lumbar spinal stenosis with neurogenic claudication. Cochrane Database Syst Rev 2013:CD010712. [PMID: 23996271 DOI: 10.1002/14651858.cd010712] [Citation(s) in RCA: 71] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
BACKGROUND Lumbar spinal stenosis with neurogenic claudication is one of the most commonly diagnosed and treated pathological spinal conditions. It frequently afflicts the elderly population. OBJECTIVES To systematically review the evidence for the effectiveness of nonoperative treatment of lumbar spinal stenosis with neurogenic claudication. SEARCH METHODS CENTRAL, MEDLINE, CINAHL, and Index to Chiropractic Literature (ICL) databases were searched up to June 2012. SELECTION CRITERIA Randomized controlled trials published in English, in which at least one arm provided data on nonoperative treatments DATA COLLECTION AND ANALYSIS We used the standard methodological procedures expected by The Cochrane Collaboration. Risk of bias in each study was independently assessed by two review authors using the 12 criteria recommended by the Cochrane Back Review Group (Furlan 2009). Dichotomous outcomes were expressed as relative risk, continuous outcomes as mean difference or standardized mean difference; uncertainty was expressed with 95% confidence intervals. If possible a meta-analysis was performed, otherwise results were described qualitatively. GRADE was used to assess the quality of the evidence. MAIN RESULTS From the 8635 citations screened, 56 full-text articles were assessed and 21 trials (1851 participants) were included. There was very low-quality evidence from six trials that calcitonin is no better than placebo or paracetamol, regardless of mode of administration or outcome assessed. From single small trials, there was low-quality evidence for prostaglandins, and very low-quality evidence for gabapentin or methylcobalamin that they improved walking distance. There was very low-quality evidence from a single trial that epidural steroid injections improved pain, function, and quality of life, up to two weeks, compared with home exercise or inpatient physical therapy. There was low-quality evidence from a single trial that exercise is of short-term benefit for leg pain and function compared with no treatment. There was low and very low-quality evidence from six trials that multimodal nonoperative treatment is less effective than indirect or direct surgical decompression with or without fusion. A meta-analysis of two trials comparing direct decompression with or without fusion to multimodal nonoperative care found no significant difference in function at six months (mean difference (MD) -3.66, 95% CI -10.12 to 2.80) and one year (MD -6.18, 95% CI -15.03 to 2.66), but at 24 months a significant difference was found favouring decompression (MD -4.43, 95% CI -7.91 to -0.96). AUTHORS' CONCLUSIONS Moderate and high-quality evidence for nonoperative treatment is lacking and thus prohibits recommendations for guiding clinical practice. Given the expected exponential rise in the prevalence of lumbar spinal stenosis with neurogenic claudication, large high-quality trials are urgently needed.
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Affiliation(s)
- Carlo Ammendolia
- Rebecca MacDonald Centre for Arthritis and Autoimmune Diseases, 60 Murray Street, Room L2007, Toronto, ON, Canada, M5T 3L9
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McNulty PA, Burke D. Self-sustained motor activity triggered by interlimb reflexes in chronic spinal cord injury, evidence of functional ascending propriospinal pathways. PLoS One 2013; 8:e72725. [PMID: 23936543 PMCID: PMC3732223 DOI: 10.1371/journal.pone.0072725] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2013] [Accepted: 07/12/2013] [Indexed: 11/25/2022] Open
Abstract
The loss or reduction of supraspinal inputs after spinal cord injury provides a unique opportunity to examine the plasticity of neural pathways within the spinal cord. In a series of nine experiments on a patient, quadriplegic due to spinal cord injury, we investigated interlimb reflexes and self-sustained activity in completely paralyzed and paretic muscles due to a disinhibited propriospinal pathway. Electrical stimuli were delivered over the left common peroneal nerve at the fibular head as single stimuli or in trains at 2–100 Hz lasting 1 s. Single stimuli produced a robust interlimb reflex twitch in the contralateral thumb at a mean latency 69 ms, but no activity in other muscles. With stimulus trains the thumb twitch occurred at variable subharmonics of the stimulus rate, and strong self-sustained activity developed in the contralateral wrist extensors, outlasting both the stimuli and the thumb reflex by up to 20 s. Similar behavior was recorded in the ipsilateral wrist extensors and quadriceps femoris of both legs, but not in the contralateral thenar or peroneal muscles. The patient could not terminate the self-sustained activity voluntarily, but it was abolished on the left by attempted contractions of the paralyzed thumb muscles of the right hand. These responses depend on the functional integrity of an ascending propriospinal pathway, and highlight the plasticity of spinal circuitry following spinal cord injury. They emphasize the potential for pathways below the level of injury to generate movement, and the role of self-sustained reflex activity in the sequelae of spinal cord injury.
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Affiliation(s)
- Penelope A McNulty
- Neuroscience Research Australia and University of New South Wales, Sydney, Australia.
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Abstract
OBJECTIVE As a standard method, periodic limb movements in sleep (PLMS) are detected by means of polysomnography (PSG). Actigraphic detection of PLMS is a recently developed method for performing of multiple-night recordings in an outpatient setting. The aim of our study was to assess sensitivity-related parameters of actigraphic detection of PLMS in comparison to the PSG, when mounted at ankles and at the base of the big toe. METHODS We simultaneously performed PSG and actigraphic recordings at both ankles and at the bases of both big toes (Cambridge Actiwatch AW-64) for 40 nights. The PLM index (PLMI), number of periodic movements per hour of sleep, was the primary output of both methods. RESULTS We have proven significant correlation of all resulting parameters when comparing actigraphy at either position to the PSG; however, the PLMI values obtained by the actigraphy at toes were significantly higher than by PSG (sign test, p<0.0001). At bases of the big toes, threshold of PLMI=7.6 was used as a cut off for positivity, while PLMI=5 at ankles was used for PSG. Comparing ankle versus toe actigraphic placement, sensitivity was 67% versus 94%, specificity was 95% versus 91% and negative predictive value was 78% versus 95%. The correlation of the results from actigraphy and PSG was not affected by presence of respiratory events. DISCUSSION Our results suggest good validity of actigraphic PLM evaluation at the base of big toe using AW-64 devices and therefore, actigraphy seems suitable for screening purposes in both clinical and research usage.
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Affiliation(s)
- David Kemlink
- Department of Neurology, General Teaching Hospital and First Medical Faculty, Charles University, Prague, Czech.
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Pennekamp W, Krumova EK, Feigl GP, Frombach E, Nicolas V, Schwarzer A, Maier C. Permanent lesion of the lateral femoral cutaneous nerve after low-volume ethanol 96%application on the lumbar sympathetic chain. Pain Physician 2013; 16:391-397. [PMID: 23877455] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Lumbar sympathetic blocks and chemical sympathectomies are used for the pain treatment of peripheral arterial occlusive disease or sympathetically maintained pain syndrome after nerve injury or complex regional pain syndrome (CRPS). A 30-year-old patient was referred to the pain department with all the clinical signs and symptoms of a CRPS of the right foot one and a half years after being surgically treated for rupture of the achilles tendon. An inpatient admission was necessary due to insufficient pain reduction upon the current treatment, strong allodynia in the medial distal right lower leg and decreased load-bearing capacity of the right foot. A computed tomography (CT)-guided lumbar sympathetic block at the right L3 (Bupivacaine 0.5%, 4 mL) led to a skin temperature increase from 21° C before block to > 34° C for about 5 hours after the intervention. The patient experienced significant pain relief, indicating sympathetically maintained pain. Thus, we performed a CT-guided lumbar sympathetic neurolysis at the same level (ethanol 96%, 2 mL) 5 days later, achieving again a significant skin temperature increase of the right foot and a slight reduction of his pain intensity from numeric rating scale (NRS) 7 prior to the intervention to NRS 4 after 8 hours (NRS, 0 = no pain, 10 = strongest pain imaginable). Eight months later a repeated inpatient admission was necessary due to considerable pain relapse and decreased load-bearing capacity of his right foot. A CT-guided lumbar sympathetic neurolysis was repeated at the L4 level on the right side and was successful, inducing a significant skin temperature increase. Despite a temporary irritation of the genitofemoral nerve 8 hours after the intervention, a delayed irritation of the lateral femoral cutaneous nerve occurred. This was a long-lasting lesion of the lateral femoral cutaneous nerve following a CT-guided chemical sympathectomy with a low-volume ethanol 96% application - a complication which has not been described in literature until now. This is probably caused by broad dissemination of the neurolytic agent along the psoas muscle despite a correct needle position and spread of contrast agent. The development of this nerve injury even after injection of a small volume of ethanol (2 mL) may be delayed.
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Affiliation(s)
- Werner Pennekamp
- Department for Diagnostic and Interventional Radiology and Nuclear Medicine, Berufsgenossenschaftliches Universitatsklinikum Bergmannsheil GmbH, Ruhr-University Bochum, Germany.
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Sugiyama I. [8-year-old complaining of numbness and fatigue of both legs]. No To Hattatsu 2013; 45:265-266. [PMID: 23951936] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
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Kohno Y, Koishi K, Fujii T, Nishiyama T. [A case report of ultrasound guided peripheral nerve block for lower extremity amputation of a patient with anti-phospholipid syndrome]. Masui 2013; 62:718-720. [PMID: 23815001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
A 60-year-old female with anti-phospholipid syndrome underwent amputation of her left lower limb. She had had a history of cerebral infarction, cerebral hemorrhage, coagulation abnormalities, thrombocytopenia, and pneumothorax, and just recovered from disseminated intravascular coagulation. After intravenous fentanyl 25 microg, ultrasound-guided sciatic, femoral and lateral femoral cutaneous nerve blocks were performed. We used 0.75% ropivacaine 15 ml and 1% lidocaine 15 ml for sciatic nerve block, 0.75% ropivacaine 5 ml and 1% lidocaine 5 ml for femoral nerve block and 0.75% ropivacaine 5 ml for femoral cutaneous nerve block. For femoral nerve block, a catheter was inserted and ropivacaine was infused at 4 ml x hr(-1) after surgery. Amputation at the left thigh was successfully performed and postoperative course was uneventful. The sciatic, femoral and lateral femoral cutaneous nerve blocks were useful for amputation of a patient with severe coagulopathy by anti-phospholipid syndrome.
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Affiliation(s)
- Yumiko Kohno
- Department of Anesthesiology and Critical Care, Higashi Omiya General Hospital, Saitama 337-0051
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Green JS, Dillane D, Tsui BCH. Adductor canal nerve catheter for post-operative management of medial ankle pain following ankle fusion. Acta Anaesthesiol Scand 2013; 57:264. [PMID: 23294056 DOI: 10.1111/aas.12007] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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