Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 164
Filtrar
1.
Cureus ; 16(8): e67029, 2024 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-39280534

RESUMO

This case report shows the importance of semiology during a clinical examination not only to diagnose spine clinical symptoms but also to review the central nervous system tumor as a foot drop cause. We report a unique case of a patient who consulted for constant progressive numbness and motor symptoms in the right lower extremity. Lumbar CT and MRI were negative for acute or chronic lumbar pathology. This is a 41-year-old female patient with a history of eight-month progressive right leg weakness. The physical examination did not reveal neurological alterations besides foot drop. MRI and lumbar X-rays showed no significant findings. Electromyography (EMG) indicated right peroneal neuropathy. Based on these findings, surgical treatment was not indicated; therefore, physical therapy and a referral to neurology were indicated. However, symptoms increased, resulting in a right lower extremity hemiparesis. A brain MRI showed a left frontoparietal giant meningioma, which was surgically resected after embolization. The patient evolved with a full recovery of the right-sided hemiparesis after surgery. Our case highlights the foot drop's multiple etiologies. Initially, a lumbar disc hernia was suspected, but it was ruled out by imaging studies. Later, the EMG revealed peroneal neuropathy, leading to a neurology consult. Unexpectedly, a giant intracranial meningioma was found, a rare case of foot drop. A consideration of upper motor neuron (UMN) and lower motor neuron (LMN) syndromes aided diagnosis. Tumoral resection with embolization resulted in significant improvement, showcasing the complexities of such cases. Foot drop is a peculiar clinical manifestation that must have an integral assessment to rule out peripheral and central causes. Even rare, giant meningiomas can cause focalized symptoms such as foot drop. Therefore, the assessment of foot drop should include the CT and MRI of the central nervous system.

2.
J Foot Ankle Res ; 17(3): e12041, 2024 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-39223832

RESUMO

INTRODUCTION: Hindfoot varus deformity is common in people with unilateral upper motor neuron syndrome (UMNS) and can be dynamic or persistent. The aims of this study were (1) to gain insight into plantar pressure characteristics of people with chronic UMNS in relation to hindfoot varus and (2) to propose a quantitative outcome measure, based on plantar pressure, for the scientific evaluation of surgical interventions. METHODS: In this retrospective study, a cohort comprising plantar pressure data of 49 people with UMNS (22 "no hindfoot varus", 18 "dynamic hindfoot varus", and 9 "persistent hindfoot varus"), and 586 healthy controls was analyzed. As an indication of plantigrade foot contact, the ratio between the plantar contact area of the affected and the non-affected foot was calculated. To investigate spatial and temporal aspects of plantar pressure, normalized plantar pressure patterns and center of pressure trajectories were computed. RESULTS: People with UMNS had lower plantar pressure area ratios compared to healthy controls. Additionally, increased plantar pressure underneath the lateral foot was found in people with a persistent hindfoot varus. Center of pressure trajectories were more lateral during the first 26% of the stance phase in people with a dynamic hindfoot varus and during the first 82% of the stance phase in people with a persistent hindfoot varus compared to healthy controls. CONCLUSION: Spatial and temporal differences in plantar pressure were found in people with dynamic or persistent hindfoot varus deformity. We propose to primarily use the medio-lateral center of pressure trajectory as outcome measure for the scientific evaluation of surgical interventions targeting hindfoot varus.


Assuntos
, Doença dos Neurônios Motores , Pressão , Humanos , Feminino , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Pé/fisiopatologia , Doença dos Neurônios Motores/fisiopatologia , Doença dos Neurônios Motores/complicações , Adulto , Idoso , Estudos de Casos e Controles , Deformidades Adquiridas do Pé/fisiopatologia , Deformidades Adquiridas do Pé/etiologia , Deformidades Adquiridas do Pé/cirurgia , Fenômenos Biomecânicos
3.
Brain Pathol ; : e13286, 2024 Jul 10.
Artigo em Inglês | MEDLINE | ID: mdl-38988008

RESUMO

Amyotrophic lateral sclerosis (ALS) is a neurodegenerative disorder characterized by upper and lower motor neuron signs. There are, however, cases where upper motor neurons (UMNs) are predominantly affected, leading to clinical presentations of UMN-dominant ALS or primary lateral sclerosis. Furthermore, cases exhibiting an UMN-predominant pattern of motor neuron disease (MND) presenting with corticobasal syndrome (CBS) have been sparsely reported. This study aims to clarify the clinicopathological features of patients with UMN-predominant MND. We reviewed 24 patients with UMN-predominant MND with TDP-43 pathology in the presence or absence of frontotemporal lobar degeneration. Additionally, we reviewed the medical records of patients with pathologically-confirmed corticobasal degeneration (CBD) who received a final clinical diagnosis of CBS (n = 10) and patients with pathologically-confirmed progressive supranuclear palsy (PSP) who received a final clinical diagnosis of PSP syndrome (n = 10). Of 24 UMN-predominant MND patients, 20 had a clinical diagnosis of an atypical parkinsonian disorder, including CBS (n = 11) and PSP syndrome (n = 8). Only two patients had antemortem diagnoses of motor neuron disease. UMN-predominant MND patients with CBS less frequently exhibited apraxia than those with CBD, and they were less likely to meet clinical criteria for possible or probable CBS. Similarly, UMN-predominant MND patients with PSP syndrome less often met clinical criteria for probable PSP than PSP patients with PSP syndrome. Our findings suggest that UMN-predominant MND can mimic atypical parkinsonism, and should be considered in the differential diagnosis of CBS and PSP syndrome, in particular when criteria are not met.

4.
J Hand Surg Am ; 2024 Jul 18.
Artigo em Inglês | MEDLINE | ID: mdl-39023500

RESUMO

Spastic elbow deformity in patients with upper motor neuron injuries results from an imbalance of flexor and extensor forces across the ulnohumeral joint. Although not all deformities reflect the same underlying imbalances, the elbow most commonly rests in a flexed position. Patients may present with a combination of muscle spasticity, myostatic contracture, and/or joint contracture. A focused history and physical examination are essential for developing individualized surgical plans that account for variations in deformity severity and patient goals. Patients may present with or without volitional control; goals and treatment options differ depending on the degree of control present. Techniques include hyperselective neurectomy, tendon lengthening, muscle origin release, myotomy, tenotomy, periarticular soft tissue release, and skin rearrangement. This article presents a comprehensive review of the surgical approach to the volitional and nonvolitional spastic elbow deformities.

5.
Front Neurol ; 15: 1406109, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-39076845

RESUMO

Background: Upper motor neuron-dominant ALS (UMND ALS) is recognized to have early onset and good prognosis, but may have a rapid decline in motor function due to gait instability in the early stage. We investigated changes in lower extremity function in UMND ALS, particularly UMND ALS patients accompanied with postural instability or repeated falls (UMND ALS plus). Results: Among the 2,353 ALS patients reviewed, 211 (9.0%) had UMND ALS. UMND ALS had a longer diagnosis delay and restricted symptoms. Although UMND ALS patients had better lower extremity function and strength than matched classic ALS patients on first evaluation, there was no difference in the time of needing assistance or not being able to walk after disease onset. In contrast, UMND ALS plus has severe UMN symptoms and a more rapid decline in motor function. The lower extremity function was no better than that in the matched classic ALS. The prognosis of UMND ALS and UMND ALS plus were significantly better than those of overall ALS. Conclusion: UMND ALS has restricted symptoms but has a rapid decline in lower extremity function in the early stage of the disease. The motor function decline of UMND ALS plus is as fast as classic ALS. Whether these patients represent a distinct subgroup of ALS deserves further investigation.

6.
Cureus ; 16(5): e60101, 2024 May.
Artigo em Inglês | MEDLINE | ID: mdl-38860087

RESUMO

Meige syndrome (MS) is a cranial dystonia that involves blepharospasm and oromandibular dystonia. It can also evolve to include other adjacent muscle groups in the cervical region. It typically presents in middle-aged females, and while the disorder is relatively uncommon, its exact prevalence varies. Diagnosis is typically made with a thorough history and physical and workup to rule out other causes. Treatment options include medical management with gamma-aminobutyric acid (GABA) antagonists, dopamine antagonists, and anticholinergics for short-term management. Long-term treatment options are Botox and deep brain stimulation. This case report presents a 56-year-old female with a complex presentation of MS; the patient's symptoms progressed from isolated blepharospasms to involve orofacial and cervical musculature. A distinctive aspect of this case was the simultaneous presence of upper motor neuron (UMN) signs in the patient alongside acute to subacute compression fractures of the superior endplate of C7 and T3, as revealed by cervical spine imaging. Treatment with clonazepam led to significant symptomatic improvement, highlighting the importance of a multimodal approach in managing MS. This case underscores the need for careful clinical evaluation, collaboration with movement disorder specialists, and ongoing research efforts to enhance understanding and treatment of MS.

7.
Cureus ; 16(5): e59812, 2024 May.
Artigo em Inglês | MEDLINE | ID: mdl-38854224

RESUMO

Madras motor neuron disease (MMND) is a rare childhood or juvenile motor neuron disease. Herein, we present a unique case of MMND in an 18-year-old patient, which challenges the conventional understanding of the disease's onset and progression. The patient, a previously healthy adolescent, presented with insidious onset and gradually progressive weakness of all four limbs, wasting, tongue fasciculation, and bilateral sensorineural hearing loss. Neurological examination revealed signs consistent with lower motor neuron involvement. Electromyography (EMG) and nerve conduction studies (NCS) supported the diagnosis of MMND. The patient's clinical course exhibited rapid deterioration, leading to significant functional impairment within a short timeframe. Treatment modalities, including supportive care and symptomatic management, were implemented; however, disease progression remained relentless. This case highlights the significance of considering MMND in the differential diagnosis of motor neuron diseases, even in young individuals. It highlights the importance of conducting more studies to comprehend the underlying mechanisms and consider potential therapeutic strategies for this uncommon ailment.

8.
Muscle Nerve ; 70(1): 152-156, 2024 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-38687249

RESUMO

INTRODUCTION/AIMS: The frequency and distribution of upper motor neuron (UMN) signs in primary lateral sclerosis (PLS) are unknown. We aimed to study the spectrum of UMN signs in PLS and compare it with hereditary spastic paraplegia (HSP). METHODS: We retrospectively analyzed the frequency of different UMN signs, including hyperreflexia (limbs and jaw), limb and tongue spasticity, Babinski, and Hoffman signs, in PLS patients at first observation and compared this respect to onset region and symptom duration. We also compared PLS versus HSP patients. RESULTS: We included 34 PLS and 20 HSP patients, with a median symptom duration at first visit of 3.0 (interquartile range, IQR = 4.0) and 19.0 (IQR = 22.0) years, respectively. In PLS patients, hyperreflexia of upper (UL) (88.2%) and lower (LL) (91.2%) limbs, and LL spasticity (79.4%) were the most common findings. Spasticity of LL was significantly (p = .012) more frequent in LL-spinal onset subgroup, tongue spasticity in bulbar-onset subgroup (p = .021), and Hoffman sign in UL-spinal onset subgroup (p = .024). The PLS subgroup with shorter disease duration had a higher frequency of abnormal jaw jerk reflex (p = .037). Compared with HSP, PLS patients had a higher frequency of UL hyperreflexia (88.2% vs. 42.1%, p < .001) and UL spasticity (44.1% vs. 0.0%, p < .001). Asymmetric distribution of UMN signs was present in PLS and not in HSP. DISCUSSION: In PLS, UL UMN signs are nearly always present and UMN sign distribution appears to be associated with onset region. At first observation, bulbar involvement, asymmetrical distribution of UMN signs and UL spasticity may indicate PLS versus HSP.


Assuntos
Paraplegia Espástica Hereditária , Humanos , Paraplegia Espástica Hereditária/fisiopatologia , Paraplegia Espástica Hereditária/diagnóstico , Masculino , Feminino , Pessoa de Meia-Idade , Adulto , Estudos Retrospectivos , Neurônios Motores/fisiologia , Idoso , Espasticidade Muscular/fisiopatologia , Espasticidade Muscular/diagnóstico , Doença dos Neurônios Motores/fisiopatologia , Doença dos Neurônios Motores/diagnóstico
9.
Rev Neurol (Paris) ; 180(7): 632-641, 2024 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-38553272

RESUMO

Amyotrophic lateral sclerosis (ALS) diagnosis relies on signs of progressive damage to both lower motoneuron (LMN), given by clinical examination and electromyography (EMG), and upper motoneuron (UMN), given by clinical examination only. Recognition of UMN involvement, however, is still difficult, so that diagnostic delay often remains too long. Shortening the time to clinical and genetic diagnosis is essential in order to provide accurate information to patients and families, avoid time-consuming investigations and for appropriate care management. This study investigates whether combined patellar tendon reflex recording with motor-evoked potentials to the lower limbs (T-MEP-LL) is relevant to assess corticospinal function in ALS, so that it might serve as a tool improving diagnosis. T-MEP-LL were recorded in 135 patients with suspected motor neuron disease (MND) from February 2010 to March 2021. The sensitivity, specificity, and ability to improve diagnosis when added to Awaji and Gold Coast criteria were determined. The main finding of the study is that T-MEP-LL can detect UMN dysfunction with a 70% sensitivity and 63% specificity when UMN clinical signs are lacking. The sensitivity reaches 82% when considering all MND patients. Moreover, at first evaluation, using T-MEP-LL to quantify reflex briskness and to measure central conduction time, can improve the diagnostic accuracy. T-MEP-LL is easy to perform and does not need any electrical stimulation, making the test rapid, and painless. By the simultaneous quantification of both UMN and LMN system, it could also help to identify different phenotype with more accuracy than clinical examination in this broad-spectrum pathology. The question whether T-MEP-LL could further be a real biomarker need further prospective studies.


Assuntos
Esclerose Lateral Amiotrófica , Potencial Evocado Motor , Extremidade Inferior , Neurônios Motores , Humanos , Esclerose Lateral Amiotrófica/diagnóstico , Esclerose Lateral Amiotrófica/fisiopatologia , Esclerose Lateral Amiotrófica/patologia , Masculino , Pessoa de Meia-Idade , Feminino , Idoso , Potencial Evocado Motor/fisiologia , Neurônios Motores/fisiologia , Adulto , Extremidade Inferior/fisiopatologia , Eletromiografia/métodos , Reflexo de Estiramento/fisiologia , Idoso de 80 Anos ou mais , Sensibilidade e Especificidade , Reflexo/fisiologia
10.
Front Neurol ; 15: 1360521, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38497037

RESUMO

Background: Muscle cramps are typically regarded as benign muscle overactivity in healthy individuals, whereas spasms are linked to spasticity resulting from central motor lesions. However, their striking similarities made us hypothesize that cramping is an under-recognized and potentially misidentified aspect of spasticity. Methods: A systematic search on spasms and cramps in patients with Upper Motor Neuron Disorder (spinal cord injury, cerebral palsy, traumatic brain injury, and stroke) was carried out in Embase/Medline, aiming to describe the definitions, characteristics, and measures of spasms and cramps that are used in the scientific literature. Results: The search identified 4,202 studies, of which 253 were reviewed: 217 studies documented only muscle spasms, 7 studies reported only cramps, and 29 encompassed both. Most studies (n = 216) lacked explicit definitions for either term. One-half omitted any description and when present, the clinical resemblance was significant. Various methods quantified cramp/spasm frequency, with self-reports being the most common approach. Conclusion: Muscle cramps and spasms probably represent related symptoms with a shared pathophysiological component. When considering future treatment strategies, it is important to recognize that part of the patient's spasms may be attributed to cramps.

11.
J Am Vet Med Assoc ; 262(3): 330-333, 2024 Mar 01.
Artigo em Inglês | MEDLINE | ID: mdl-37976677

RESUMO

OBJECTIVE: The aim of the study was to evaluate whether the tactile stimulation of the perigenital region together with manual bladder expression (MBE) facilitated the urine stream in cats with acute or chronic upper motor neuron injury (UMNI). ANIMALS: 34 cats with UMNI having urinary retention. METHODS: All the cats had a complete neurologic examination, which determined the localization of the UMNI between T3 and L3. They were classified as chronic UMNI if the injury had occurred more than 3 days previously. The cats were divided equally into 2 groups: the M group (n = 17) managed with only MBE, and the MT group (17) managed with MBE and tactile stimulation. RESULTS: In both groups, all the cats affected by chronic UMNI resumed urination. The time required to obtain a urine stream in the chronic UMNI was 9.3 seconds in the M group and 3.1 seconds in the MT group (P < .05). In the cats affected by acute UMNI, a urine stream was achieved in 54% of the M group and 100% of the MT group (P < .05). The time to obtain a urine stream in the acute UMNI cats was 7.8 seconds in the M group and 3.75 seconds in the MT group (P < .05). CLINICAL RELEVANCE: Adding tactile stimulation of the perigenital region to the MBE improved the urine stream in cats affected by UMNI.


Assuntos
Doenças do Gato , Traumatismos da Medula Espinal , Animais , Gatos , Bexiga Urinária , Traumatismos da Medula Espinal/veterinária , Micção/fisiologia , Exame Neurológico , Neurônios Motores
12.
Artif Organs ; 48(3): 285-296, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-37431960

RESUMO

PURPOSE: A Clinical Practice Guideline (CPG) is required to provide guidance on optimal service delivery for Functional Electrical Stimulation (FES) to support upright mobility in people living with mobility difficulties due to an upper motor neuron lesion, such as stroke or multiple sclerosis. A modified Delphi consensus study was used to provide expert consensus on best practice. METHODS: A Steering Group supported the recruitment of an Expert Panel, which included a range of stakeholders who participated in up to three survey rounds. In each round, panelists were asked to rate their agreement with draft statements about best practice using a 6-point Likert scale and add free text to explain their answer. Statements that achieved over 75% agree/strongly agree on the Likert scale were included in the CPG. Those that did not were revised based on free text comments and proposed in the next survey round. RESULTS: The first round included 82 statements with seven substatements. Sixty-five people (84% response rate) completed survey round 1 leading to 62 statements and four substatements being accepted. Fifty-six people responded to survey round 2, and consensus was achieved for all remaining statements. CONCLUSION: The accepted statements are included within the CPG and provide recommendations about who can benefit from FES and how they can be optimally supported through FES service provision. As such the CPG will support advocacy for, and optimal design of, FES services.


Assuntos
Neurônios Motores , Humanos , Consenso , Técnica Delphi , Inquéritos e Questionários , Guias de Prática Clínica como Assunto
13.
Artif Organs ; 48(3): 210-231, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-37259954

RESUMO

PURPOSE: To conduct an umbrella review of systematic reviews on functional electrical stimulation (FES) to improve walking in adults with an upper motor neuron lesion. METHODS: Five electronic databases were searched, focusing on the effect of FES on walking. The methodological quality of reviews was evaluated using AMSTAR2 and certainty of evidence was established through the GRADE approach. RESULTS: The methodological quality of the 24 eligible reviews (stroke, n = 16; spinal cord injury (SCI), n = 5; multiple sclerosis (MS); n = 2; mixed population, n = 1) ranged from critically low to high. Stroke reviews concluded that FES improved walking speed through an orthotic (immediate) effect and had a therapeutic benefit (i.e., over time) compared to usual care (low certainty evidence). There was low-to-moderate certainty evidence that FES was no better or worse than an Ankle Foot Orthosis regarding walking speed post 6 months. MS reviews concluded that FES had an orthotic but no therapeutic effect on walking. SCI reviews concluded that FES with or without treadmill training improved speed but combined with an orthosis was no better than orthosis alone. FES may improve quality of life and reduce falls in MS and stroke populations. CONCLUSION: FES has orthotic and therapeutic benefits. Certainty of evidence was low-to-moderate, mostly due to high risk of bias, low sample sizes, and wide variation in outcome measures. Future trials must be of higher quality, use agreed outcome measures, including measures other than walking speed, and examine the effects of FES for adults with cerebral palsy, traumatic and acquired brain injury, and Parkinson's disease.


Assuntos
Terapia por Estimulação Elétrica , Acidente Vascular Cerebral , Adulto , Humanos , Qualidade de Vida , Revisões Sistemáticas como Assunto , Caminhada/fisiologia , Extremidade Inferior , Acidente Vascular Cerebral/complicações , Acidente Vascular Cerebral/terapia , Estimulação Elétrica , Neurônios Motores
14.
Cell Rep ; 42(11): 113344, 2023 11 28.
Artigo em Inglês | MEDLINE | ID: mdl-37910500

RESUMO

Identifying molecular specializations in cortical circuitry supporting complex behaviors, like learned vocalizations, requires understanding of the neuroanatomical context from which these circuits arise. In songbirds, the robust arcopallial nucleus (RA) provides descending cortical projections for fine vocal-motor control. Using single-nuclei transcriptomics and spatial gene expression mapping in zebra finches, we have defined cell types and molecular specializations that distinguish RA from adjacent regions involved in non-vocal motor and sensory processing. We describe an RA-specific projection neuron, differential inhibitory subtypes, and glia specializations and have probed predicted GABAergic interneuron subtypes electrophysiologically within RA. Several cell-specific markers arise developmentally in a sex-dependent manner. Our interactive apps integrate cellular data with developmental and spatial distribution data from the gene expression brain atlas ZEBrA. Users can explore molecular specializations of vocal-motor neurons and support cells that likely reflect adaptations key to the physiology and evolution of vocal control circuits and refined motor skills.


Assuntos
Tentilhões , Córtex Motor , Animais , Tentilhões/fisiologia , Córtex Motor/fisiologia , Encéfalo/fisiologia , Aprendizagem/fisiologia , Neurônios Motores , Vocalização Animal/fisiologia
15.
Tomography ; 9(6): 1999-2005, 2023 10 27.
Artigo em Inglês | MEDLINE | ID: mdl-37987342

RESUMO

INTRODUCTION: Conus medullaris syndrome (CMS) is a distinctive spinal cord injury (SCI), which presents with varying degrees of upper motor neuron signs (UMNS) and lower motor neuron signs (LMNS). Herein, we present a case with a burst fracture injury at the proximal Conus Medullaris (CM). CASE PRESENTATION: A 48-year-old Taiwanese male presenting with lower back pain and paraparesis was having difficulty standing independently after a traumatic fall. An Imaging survey showed an incomplete D burst fracture of the T12 vertebra. Posterior decompression surgery was subsequently performed. However, spasticity and back pain persisted for four months after surgical intervention. Follow-up imaging with single photon emission computed tomography (SPECT) and a whole body bone scan both showed an increased uptake in the T12 vertebra. CONCLUSION: The high-riding injury site for CMS is related to a more exclusive clinical representation of UMNS. Our case's persistent UMNS and scintigraphy findings during follow-up showcase the prolonged recovery period of a UMN injury. In conclusion, our study provides a different perspective on approaching follow-up for CM injuries, namely using scientigraphy techniques to confirm localization of persistent injury during the course of post-operative rehabilitation. Furthermore, we also offered a new technique for analyzing the location of lumbosacral injuries, and that is to measure the location of the injury relative to the tip of the CM. This, along with clinical neurological examination, assesses the extent to which the UMN is involved in patients with CMS, and is possibly a notable predictive tool for clinicians for the regeneration time frame and functional outcome of patients with lumbosacral injuries in the future.


Assuntos
Síndrome da Cauda Equina , Compressão da Medula Espinal , Humanos , Masculino , Pessoa de Meia-Idade , Compressão da Medula Espinal/cirurgia , Síndrome da Cauda Equina/diagnóstico por imagem , Síndrome da Cauda Equina/etiologia , Síndrome da Cauda Equina/cirurgia , Vértebras Torácicas
16.
Shoulder Elbow ; 15(5): 534-543, 2023 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-37811394

RESUMO

Background: We performed a retrospective review of patients undergoing surgery for elbow spasticity. We present our findings and expected outcomes according to degree of elbow fixed flexion contracture. Methods: Data collected included age, Modified Ashworth Score, pre and post-operative range of motion, indications for surgery and the Goal Attainment Score. Contracture severity was classified into five groups based on goniometric measurements. Surgical procedures were categorised into three groups. Results: A total of 114 elbows underwent surgical release. The mean age at surgery was 18.5 years and the mean follow-up was 20 months. Preoperatively, the median Modified Ashworth Score was 2 and the mean contracture was 68° (35° fixed and 33° dynamic). The median number of structures released was 3 (range: 1-6). Surgical procedures were classified as biceps sparing (27%), biceps lengthening (53%) and extended releases (18%). Mean improvement in extension was 59°, and the mean improvement in Goal Attainment Score was 36 (mean attainment score 62). The mean residual contracture was 9°. Patient satisfaction was high with over 90% of surgical indications met. Discussion: Contracture severity of the spastic elbow can be categorised by degree of fixed flexion deformity and therefore treatment can be allocated accordingly.

17.
Brain Sci ; 13(10)2023 Sep 28.
Artigo em Inglês | MEDLINE | ID: mdl-37891753

RESUMO

Amyotrophic lateral sclerosis (ALS) is a fatal form of neuromuscular disease. The aim of this study was to assess changes in the blink reflex (BR) parameters as a valid and easy-to-use tool in ALS patients. We assessed the BR test in patients with a definitive diagnosis of ALS, healthy volunteers, and patients with diseases affecting the peripheral nervous system. The BR was studied in 29 patients who met the Awaji criteria. Latencies were compared with our healthy controls (N = 50) and other diseases of the peripheral nervous system (N = 61). The ALS Functional Rating Scale-Revised (ALSFRS-R) was used to evaluate functional status. Significantly prolonged R2i and R2c latencies were found in the ALS group compared with the healthy control group (p < 0.001). The latencies of R1, R2i, R2c were all increased in the bulbar subtype compared to the limb-onset subtype (p < 0.05). According to our results, BR examination might be a promising tool to monitor the course of the disease or serve as a prognostic biomarker in patients with ALS, but it should be assessed in further studies. The abnormalities detected through BR might help perform earlier interventions in ALS patients and might be useful in other diseases affecting the peripheral nervous system.

19.
J Hand Surg Eur Vol ; 48(10): 986-997, 2023 11.
Artigo em Inglês | MEDLINE | ID: mdl-37717178

RESUMO

In the last decade there has been incredible interest and advancement in the surgical care of adult patients with upper motor neuron (UMN) injuries. Spasticity represents a prevalent and debilitating feature of UMN syndrome, which can result from cerebral palsy, spinal cord injury, cerebrovascular accident and traumatic or anoxic brain injury. While several diagnostic tools and management strategies have been described for upper limb spasticity, evidence-based practice guidelines do not currently exist due to low patient volume and a paucity of surgeons routinely performing surgeries in UMN syndrome patients. As such, expert consensus may help provide guidance for patients, therapists and clinicians alike. In this article an expert panel was assembled, and the Delphi method was utilized to present diagnostic considerations, define operative indications, discuss surgical treatment modalities and encourage a standard set of outcome measures for patients with upper extremity spasticity.


Assuntos
Acidente Vascular Cerebral , Extremidade Superior , Humanos , Adulto , Consenso , Extremidade Superior/cirurgia , Espasticidade Muscular/diagnóstico , Espasticidade Muscular/etiologia , Espasticidade Muscular/cirurgia
20.
Biomedicines ; 11(8)2023 Aug 14.
Artigo em Inglês | MEDLINE | ID: mdl-37626762

RESUMO

OBJECTIVE: Spinal cord stimulation (SCS) is one approach to the potential improvement of patients with post-stroke or post-traumatic spasticity. However, little is known about whether and how such interventions alter supraspinal neural systems involved in the pathogenesis of spasticity. This pilot study investigated whether epidural spinal cord stimulation at the level of the C3-C5 cervical segments, aimed at reducing spasticity, alters the patterns of functional connectivity of the brain. METHODS: Eight patients with spasticity in the right limbs as a result of left cerebral hemisphere damage (due to hemorrhagic and ischemic stroke or traumatic and anoxic brain injury) were assessed with fMRI immediately before and immediately after short-term (1 to 6 days) test cervical epidural SCS therapy. Eight demographically and clinically comparable patients with spasticity in the right extremities due to a left hemisphere ischemic stroke and brain injury who received conventional therapy were examined as a control group. All patients also had paresis of one or two limbs and hyperreflexia. RESULTS: After the SCS therapy, there were three main findings: (1) higher functional connectivity of the brainstem to the right premotor cortex and changes in functional connectivity between cortical motor areas, (2) increased functional connectivity between the right and left lateral nodes of the sensorimotor network, and (3) a positive correlation between decreased spasticity in the right leg and increased functional connectivity within the right hemisphere sensorimotor cortex. All these changes in functional connectivity occurred with a statistically significant decrease in spasticity, as assessed using the modified Ashworth scale. The control group showed no decrease in spasticity or increase in functional connectivity in any of the seeds of interest. On the contrary, a decrease in functional connectivity of the brainstem and right postcentral gyrus was observed in this group during the observation period. CONCLUSIONS: We were thus able to detect intrinsic brain connectivity rearrangements that occurred during spasticity mitigation following short epidural SCS therapy. SIGNIFICANCE: The clinical results obtained confirmed the efficacy of short-term anti-spastic SCS therapy. The obtained data on functional rearrangements of the central motor system may shed light on the mechanism of antispastic action of this procedure.

SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA
...