Propioception

INTRODUCTION: Ballism is a rare movement disorder that presents with violent and wide amplitude flinging movements of the limbs, mainly caused by injury in the contralateral subthalamic nucleus or its afferent or efferent connections. CLINICAL CASE: We describe the case of a 50-year old male who had ballistic movements after a cervical trauma. He subsequently developed choreoathetoid movements and a distonic attitude in the left upper limb later. A C2-C3 sensory level and proprioceptive loss in this limb were the main findings in the examination...

Neuropathic arthropathies is a destructive and deforming joint process related to a disruption of propioceptive and nocioceptive innervation. Growth factors, neurological and vascular factors might be involved. Diabetes, alcoholic neuropathy or syringomyelia appear as the most common causes. We report the case of a 61-year-old woman affected by syringomyelia, with a neuropathic arthropathy of the shoulder. Differential diagnosis includes neurological diseases, septic arthritis, tumours and other destructive arthropathies such as aseptic nechrosis, chronic osteomyelitis, synovial chondromatosis, metabolic diseases (gout, chondrocalcinosis) or repetitive haemarthrosis in haemophilia...

The role of the cerebellum in schizophrenia has been highlighted by Andreasen's hypothesis of "cognitive dysmetria," which suggests a general dyscoordination of sensorimotor and mental processes. Studies in schizophrenic patients have brought observations supporting a cerebellar impairment: high prevalence of neurological soft signs, dyscoordination, abnormal posture and propioception, impaired eyeblink conditioning, impaired adaptation of the vestibular-ocular reflex or procedural learning tests, and lastly functional neuroimaging studies correlating poor cognitive performances with abnormal cerebellar activations...

BACKGROUND: Low level connective tissue inflammation has been proposed to play a role in thyroid associated ophthalmopathy (TAO). The aim of this study was to investigate this postulate by a musculoskeletal approach together with biochemical parameters. METHODS: 13 patients with TAO and 16 controls were examined. Erythrocyte levels of Zn, Cu, Ca2+, Mg, and Fe were determined. The musculoskeletal evaluation included observational data on body posture with emphasis on the orbit-head region...

In Experiment 1, 10 pigeons were exposed to a successive symbolic matching-to-sample procedure in which the sample was generated by the pigeons' own behavior. Each trial began with both response keys illuminated white, one being the "correct" key and the other the "incorrect" key. The pigeons had no way of discriminating which key was correct and which incorrect, since these roles were assigned on a random basis with the same probability of 0.5 for each key. A fixed ratio of five responses was required on the correct key...

Dysmorphophobia, also known as Body Dysmorphic Disorder (BDD), can become a serious illness that results in severe complications such as social isolation, self-mutilations, suicide attempts, and even suicide. Many authors currently include BDD among the spectrum of obsessive-compulsive disorders. There are two distinguishable variants of BDD: psychotic and non-psychotic. The current trend considers these variants as one same disorder characterized by an insight spectrum. However, the psychotic variant exhibits more severe symptoms...

STUDY DESIGN: Case report. OBJECTIVES: To present an interesting case of a 14-year-old male with acute paresis of upper extremities and progressive difficulty with lower extremities. The patient is a competitive wrestler and was performing his daily abdominal workout 'sit-ups' with hands interlocked behind his head. During the end and immediately following his abdominal workout, he felt progressive weakness in his upper extremities. He was rushed to the hospital within an hour and seen in the emergency room and admitted to the neurology service for a presumed thromboembolic event...

BACKGROUND AND OBJECTIVE: Our purpose was to provide information about static and dynamic balance posturographic disorders in elderly people with recurrent falls, and to compare the results with a healthy elderly group. PATIENTS AND METHOD: We included 95 subjects: 57 patients who fell (86% women; age, 78.1 years) and 38 controls. Posturography by Balance Master (Neurocom). Tests performed included: a) weight bearing squat (WBS); b) modified clinical test for the sensory interaction on balance (MCT); c) sit to stand (SS); d) walk across (WA), and e) step and over (SO)...

Tri-cyclic antidepressants (TCAs) have been widely used in treating major depressive disorders. Recent studies further demonstrated that TCAs have potent sodium channel blocking effect, and amitriptyline, one of the TCAs, has a potent spinal anesthetic effect. The aim of the study was to evaluate the spinal anesthetic effect of various TCAs and to see whether these TCAs could likewise act as local anesthetics after a single intrathecal injection. Bupivacaine, a potent and long-acting traditional local anesthetic, acted as control...

A young female domestic short-hair cat presented with neurological signs consistent with a multifocal encephalic lesion (depressed mental status, head tilt to the right, cervical ventroflexion, head tremors, tetraparesis, conscious propioceptive deficits in all four limbs and visual deficits). No gross lesions were seen at necropsy. On light microscopical examination lesions were found only in the brain and cervical spinal cord. A generalized vacuolation of the grey matter of the brain was observed. Special staining techniques, immunohistochemistry, lectin affinity histochemistry and ultrastructural studies were performed to characterize the lesion; preservation of the white matter and a reactive astrogliosis were demonstrated...

INTRODUCTION: Postural control depends on a coordinate function of the visual, somatosensory and vestibular systems. A correct analysis of each of them is necessary, in order to obtain an adequate postural evaluation. METHODS: A normal and a pathological vestibular group of subjects are study. A dynamometric platform studied was performed for every subject in both groups. A scalogram, the centre of pressure variation velocity, and the area, were the parameters analyzed...

OBJECTIVE: The objective of this article is to describe a late-onset phantom-limb pain during a continuous analgesic popliteal nerve block after foot surgery and its alleviation and recurrence when stopping and resuming the local anesthetic infusion. CASE REPORT: A 29-year-old woman undergoing a left hallux valgus repair received a continuous popliteal sciatic nerve block for postoperative analgesia. Postoperatively, 6 hours after the commencement of a ropivacaine 0...

INTRODUCTION: Apart from chronic motor disorder and the possible sensory deficits (visual, propioception) associated to periventricular leukomalacia (PVL), disorders involving the integration of higher functions due to bilateral injury to the occipital parietal junction are relatively common. AIMS: Our aim was to further our knowledge of the neuropsychological characteristics of this non progressive cerebral motor disorder. Patients and methods. We analysed a sample of 15 patients with spastic diplegia due to PVL who did not present mental retardation (verbal IQ> 75 and mean verbal IQ= 91, WISC R) in order to evaluate their visual gnosis praxis, verbal and visual memory, psycholinguistic and attentional capabilities...

We examined the time course (7 weeks) of thermal hyperalgesia and light touch allodynia in rats after intradermal administration of Mycobacterium butyricum. Nociceptive thresholds to heat and light touch were assessed. Paw edema and temperature, motor function, body weight, and propioception were also tested. Some rats developed arthritis (named AA rats) but others did not (named non-AA rats). Both groups were compared with healthy animals. Persistent hyperalgesia was found in both groups; in AA rats it appeared before clinical evidence of arthritis...

Cyanocobalamin (vitamin B12) deficiency can cause polyneuropathy, myelopathy, blindness, confusion, psychosis and dementia. Nonetheless, its deficiency as the sole cause of dementia is infrequent. We report a 59 years old man with a 6 months history of progressive loss of memory, disorientation, apathy, paranoid delusions, gait difficulties with falls, and urinary incontinence. He had suffered a similar episode 3 years before, with a complete remission. On examination there was frontal type dementia with Korsakoff syndrome, a decrease in propioception and ataxic gait...

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