Analysis of a Multi-Layered Spherical Head Impact Model

1974 ◽  
Vol 96 (2) ◽  
pp. 534-540 ◽  
Author(s):  
S. L. Gordon ◽  
G. D. Moskowitz ◽  
R. Byers
Keyword(s):  
Head Injury ◽  
Head Impact ◽  
Solution Technique ◽  
Impact Model ◽  
Elastic Plastic ◽  
Skull Model ◽  
Spherical Head ◽  
Energy Absorbing ◽  
The Brain

The development of adequate protection against head injury requires a thorough knowledge of the mechanics of trauma to an unprotected head. Impact to multi-layered spherical head models are analyzed with an elastic skull, elastic tables and elastic-plastic diploe skull, and elastic tables and crushable foam diploe skull. All models have a hydrodynamic brain model. The energy absorbing skull models yield highly attenuated and smoothed tensile pressure peaks in the brain as compared to the elastic skull model. The generality of the solution technique would readily permit extension of the analyses to investigate impact to a head protected by a multi-layered helmet.

Severe Head Injury linked to Subsequent Development of Malignant Brain Tumour within a Short Period- A Case Report

2018 ◽  
Vol 3 (2) ◽  
Keyword(s):  
Head Injury ◽  
Brain Tumour ◽  
Severe Head Injury ◽  
Case Reports ◽  
Subsequent Development ◽  
Malignant Brain Tumour ◽  
Tumour Development ◽  
Short Period ◽  
The Brain

There have been a few case reports of head injury leading to brain tumour development in the same region as the brain injury. Here we report a case where the patient suffered a severe head injury with contusion. He recovered clinically with conservative management. Follow up Computed Tomography scan of the brain a month later showed complete resolution of the lesion. He subsequently developed malignant brain tumour in the same region as the original contusion within a very short period of 15 months. Head injury patients need close follow up especially when severe. The link between severity of head injury and malignant brain tumour development needs further evaluation. Role of anti-inflammatory agents for prevention of post traumatic brain tumours needs further exploration.

scholarly journals The Hammer and the Nail: Biomechanics of Striking and Struck Canadian University Football Players

2021 ◽  
Author(s):  
Jeffrey S. Brooks ◽  
Adam Redgrift ◽  
Allen A. Champagne ◽  
James P. Dickey
Keyword(s):  
College Football ◽  
Head Impact ◽  
Football Players ◽  
Video Footage ◽  
Impact Location ◽  
Rule Changes ◽  
Left And Right ◽  
The Brain

AbstractThis study sought to evaluate head accelerations in both players involved in a football collision. Players on two opposing Canadian university teams were equipped with helmet mounted sensors during one game per season, for two consecutive seasons. A total of 276 collisions between 58 instrumented players were identified via video and cross-referenced with sensor timestamps. Player involvement (striking and struck), impact type (block or tackle), head impact location (front, back, left and right), and play type were recorded from video footage. While struck players did not experience significantly different linear or rotational accelerations between any play types, striking players had the highest linear and rotational head accelerations during kickoff plays (p ≤ .03). Striking players also experienced greater linear and rotational head accelerations than struck players during kickoff plays (p = .001). However, struck players experienced greater linear and rotational accelerations than striking players during kick return plays (p ≤ .008). Other studies have established that the more severe the head impact, the greater risk for injury to the brain. This paper’s results highlight that kickoff play rule changes, as implemented in American college football, would decrease head impact exposure of Canadian university football athletes and make the game safer.

Comparative Analysis of Different Energy Absorbing Materials for Interior Head Impact

1995 ◽  
Author(s):  
C. C. Chou ◽  
Y. Zhao ◽  
G. G. Lim ◽  
R. N. Patel ◽  
S. A. Shahab ◽  
...  
Keyword(s):  
Comparative Analysis ◽  
Head Impact ◽  
Absorbing Materials ◽  
Energy Absorbing

Demonstration of massive traumatic brain swelling within 20 minutes after injury

1977 ◽  
Vol 46 (2) ◽  
pp. 256-258 ◽  
Author(s):  
Arthur I. Kobrine ◽  
Eugene Timmins ◽  
Rodwan K. Rajjoub ◽  
Hugo V. Rizzoli ◽  
David O. Davis
Keyword(s):  
Head Injury ◽  
Closed Head Injury ◽  
Brain Swelling ◽  
Axial Tomography ◽  
Content Type ◽  
Closed Head ◽  
Vascular Dilatation ◽  
Computerized Axial Tomography ◽  
The Brain ◽  
Fine Print

✓ The authors documented by computerized axial tomography a case of massive brain swelling occurring within 20 minutes of a closed head injury. It is suggested that the cause of the brain swelling is acute vascular dilatation.

scholarly journals The patient with head injury and a Glasgow coma score of 15: Is a brain CT examination indicated?

2003 ◽  
Vol 7 (3) ◽  
pp. 14-16
Author(s):  
S. L. Benade ◽  
A. T. Scher
Keyword(s):  
Head Injury ◽  
Glasgow Coma Score ◽  
Ct Scanning ◽  
Clinical History ◽  
Intracranial Injury ◽  
Brain Ct ◽  
State Hospitals ◽  
Ct Examination ◽  
Number Of Patients ◽  
The Brain

The decision as to whether to perform a CT examination of the brain in patients with a Glasgow coma score of 15 after injury is often difficult, given the limited CT scanning facilities available in state hospitals. A retrospective evaluation of 100 consecutive head-injury patients presenting with a Glasgow coma score of 15 at Tygerberg Hospital was therefore carried out. In a surprisingly high number of patients (50%) abnormal findings due to the injury were detected. Analysis of the clinical history parameters did not demonstrate a significant association with abnormal CT findings. It is therefore concluded that brain CT examination in patients with a Glasgow coma score of 15 is justified and that the Glasgow coma scale is a poor predictor of intracranial injury.

scholarly journals PENGARUH PEMBERIAN OKSIGEN DAN ELEVASI KEPALA 30º TERHADAP TINGKAT KESADARAN PADA PASIEN CEDERA KEPALA SEDANG

2020 ◽  
Vol 2 (2) ◽  
pp. 102-112
Author(s):  
Luci Riani Ginting ◽  
Kuat Sitepu ◽  
Renni Ariana Ginting
Keyword(s):  
Head Injury ◽  
Skull Fracture ◽  
P Value ◽  
Average Value ◽  
Level Of Consciousness ◽  
Before And After ◽  
Quasi Experimental ◽  
Oxygen Perfusion ◽  
The Brain ◽  
Adequate Oxygenation

Head injury is directly or indirectly mechanical injuries that resulted wound in the scalp, skull fracture, tear the lining of the brain, and brain damage, and neurological disorders. The basic method for brain protection of head injury patients are freeing the airway and giving adequate oxygenation. Giving oxygen and headv elevation 30° of head are the appropriate action for the moderate head injury classification to launch the cerebral oxygen perfusion and to increase consciousness level. The purpose of this research were to determine the GCS before and after giving oxygenation with and position 30 ° of head and to analyze the effect of giving oxygen and headv elevation30 °of head to change the levels of consciousness of moderate head injury patients. This research was an Quasi-Experimental study with 10 respondents. The test were used Paired Sample T-test Test. The results showed that there was an effect of giving oxygen and headv elevation 30 °of head toward to change the level of consciousness of moderate head injury patients. GCS average value before was 10.10 and GCS average after 12.90 value was with p value was 0.000. Keywords : Levels of Consciousness GCS, Moderate Head Injury, Position 30° of the Head

The neuropsychiatry of head injury

2012 ◽  
pp. 387-399
Author(s):  
Simon Fleminger
Keyword(s):  
Head Injury ◽  
Psychological Trauma ◽  
Medical Team ◽  
Psychiatric Consultation ◽  
The Brain

Head injury ‘imparts at a blow both physical and psychological trauma’, and the consequences are often devastating and enduring. Not infrequently head injury leads to a psychiatric consultation, which will need to take into account the interplay between the brain and its injuries as well as the psychodynamic processes that follow from the injury. In the immediate aftermath of the head injury, the management rests with the acute surgical and medical team. The psychiatrist is usually not involved at this stage. Nevertheless, to understand the later neuropsychiatric effects of head injury it is first necessary to know what happens to the brain when it is injured.

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