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PubMed1999

Early prediction of neurological outcome after falls in children: metabolic and clinical markers.

Falls are the foremost reason for non-fatal injuries and are second only to motor vehicle accidents in causing accidental death. The purpose of this study was to identify the clinical and metabolic predictors of the outcome of head injury caused by falls from a height. Medical records of 61 children who had been admitted to the paediatric intensive care unit from 1990 to 1993 after falling from a height were reviewed retrospectively. Outcomes were categorised as good, moderate, severe, and poor. Glasgow coma scores, pupillary responses, brain oedema, and midline shift are significantly associated with poor outcome (p < 0.05). Metabolic markers associated with poor outcome included hyperglycaemia and hypokalaemia. Children with a poor outcome had, at admission, significantly higher glucose concentrations compared with children with good outcomes (mean SD): 20.0 (7.1) v 9.31 (4.0) mmol/l, p < 0.01), and lower potassium concentrations compared with children with good, moderate, and severe outcomes (mean (SD): 2.8 (0.4) v 3.7 (0.4) mmol/l, p < 0.001, 3.5 (0.3) mmol/l, p < 0.01, and 3.41 (0.3) mmol/l, p < 0.05, respectively). These findings allow for an early allocation of effort and resources to children injured from such falls.

Accidental Falls↗

PubMed1987

Falls in urban children. A problem revisited.

Falls in urban setting are a common cause for emergency room visits in children and adolescents. In a retrospective review, the charts of 48 patients admitted between 1980 and 1985 with a history of a vertical fall from a height were examined. In comparison, a previous review from the same institution disclosed that 66 patients were admitted because of a vertical fall from a height between 1965 and 1974, suggesting an increase of 37.5%. Most children fell from heights of 12 ft or less, although an increasing proportion of children in our series (33%) fell from heights of 36 ft or less. Sites included windows, walls, and roofs. The peak age of incidence has increased from 2 to 6 years; however, the mean age of children in whom significant injury occurred was 7.5 years, with only 27% of children under 3 years of age suffering a documented injury, as opposed to 67% of children over 3 years of age. Children are more apt to suffer a fracture than any other injury, most likely a fracture of the ulna and/or radius. Although hospital costs are high, mortality rates (2%) and the incidence of long-term sequelae (4%) are low. In conclusion, falls in the urban setting continue to be a significant public health problem, particularly in the 6- to 7-year age group.

Accidental Falls↗

PubMed1998

Surface stiffness affects impact force during a fall on the outstretched hand.

Falls on the outstretched hand are among the most common causes of traumatic bone fracture. However, little is known regarding the biomechanical factors that affect the risk for injury during these events. In the present study, we explored how upper-extremity impact forces during forward falls are affected by modification of surface stiffness, an intervention applicable to high-risk environments such as nursing homes, playgrounds, and gymnasiums. Results from both experimental and linear biomechanical models suggest that during a fall onto an infinitely stiff surface, hand contact force is governed by a high-frequency transient (having an associated peak force Fmax1), followed by a low-frequency oscillation (having an associated lower magnitude peak force Fmax2). Practical decreases in surface stiffness attenuate Fmax1 but not Fmax2 or the magnitude of force transmitted to the shoulder. Model simulations reveal that this arises from the compliant surface's ability to decrease the velocity across the wrist damping elements at the moment of impact (which governs Fmax1) but inability to substantially reduce the peak deflection of the shoulder spring (which governs Fmax2). Comparison between model predictions and previous data on fracture force suggests that feasible compliant surface designs may prevent wrist injuries during falls from standing height or lower, because Fmax1 will be attenuated and Fmax2 will remain below injurious levels. However, such surfaces cannot prevent Fmax2 from exceeding injurious levels during falls from greater heights and therefore likely provide little protection against upper-extremity injuries in these cases.

Accidental Falls↗

PubMed2001

Intertrochanteric fractures in adults younger than 40 years of age.

This study reviewed 66 intertrochanteric fractures in patients younger than 40 years old (average 33.0 years old; range 17-40 years old). In contrast to the usual population with intertrochanteric fractures, the factors male predominance (46/66), less pre-injury comorbidity (9/66), more outdoor high energy trauma (47/66), and more associated injuries (32/66) were evident. The distribution of associated injuries was wide. Some of them were life threatening. According to Boyd's classification, 20 were type I, 24 were type II, 13 were type III, and 9 were type IV. Twenty-nine were stable, and 37 were unstable. Stratified by the mechanism of injury, the difference in distribution between the subgroups was significant (p = 0.027, two-tail Fisher's exact test). Simple falls only caused Boyd type I and II fractures. Boyd type III or IV fractures were found more often after vehicular trauma or falls from a height. All the intertrochanteric fractures healed on average 70.5 days (range 31-213 days) after operation. The fractures resulting from vehicular trauma or fall from a height healed significantly more slowly (p = 0.02, univariant log-rank test). There were 6 intertrochanteric fracture-related complications. The mechanism of injury determines the character of intertrochanteric fractures in young adults. Given tougher bone stock, better healing ability, and less co-morbidity, proper management can lead to healing of all intertrochanteric fractures. The extent of functional recovery was also determined by the associated injuries.

Adolescent↗

PubMed2001

[Evaluation of subdural hemorrhage in infants after alleged minor trauma].

QUESTIONING: Recently the discussion concerning the causes of infantile subdural bleedings (SDB) has become quite controversial. The wide-spread interpretation that most of these cases are the result of abuse, especially by the shaken-baby-syndrome, was doubted, and the role of (even minor) accidental events was emphasized. METHODS: This situation should be analyzed basing on the official statistics of the causes of death in the city of Berlin (1978-1998) and the autopsy material of our institute (1978-1999). RESULTS: In this period, approximately 440.000 children lived their first year of life in our city. Only 80 violent deaths of infants (up to 1 year old) were recorded in the official statistics, including 27 deaths due to blunt forces, with 24 lethal head injuries as the main group. Only two cases were attributed to "falls under unclear conditions"; all other accidental cases were the results of traffic accidents or falls from a height. No death due to an undoubted minor fall was recorded, nor was any in our autopsy material. We investigated 10 cases of infantile SDB, all without skull fractures and gross brain injuries. Only 1 victim had a SDB of a significant volume; in all other cases only small amounts of blood were present in the subdural space. Bridging vein ruptures were directly demonstrated in 8 cases and were bilaterally in most instances; recently their detection has been simplified by postmortem x-ray using contrast material. All 10 cases were interpreted as typical acceleration-deceleration injuries (as in shaking), although only in 2 cases a confession of this procedure could be obtained. CONCLUSION: Comparing cases of accidental and non-accidental SDB in the literature, infantile SDB obviously cannot be looked at as a homogeneous entity: two quite different types should be kept separate: the patients suffering from an accidental SDB due to a minor fall mostly do not deteriorate immediately after the trauma, develop SDB of some volume, up to a space-occupying mass lesion, and have often a good prognosis. A lethal outcome is extremely uncommon; we have not observed a single case of an infantile lethal SDB resulting from such a minor injury for more than 20 years. The source of the SDB in those cases currently is unknown in most instances. The second group of infantile SDB includes the well-known group of shaken-baby-syndrome: no adequate history, infants dead or nearly dead on clinical presentation, often a poor outcome if the event is survived, typically no significant volume of SDB, and--according to our experiences--in all cases BV ruptures. This combination of several BV ruptures with no significant subdural bleeding is not compatible with a supposition of a minor fall causing this.

Accidents↗

PubMed2002

Multiple trauma: liver and spleen injury.

The management of hepatic and splenic injuries in childhood has evolved over the past 30 years from prompt operation upon recognition of injury to nonoperative management in the large majority of children. Many aspects of nonoperative management have become increasingly standardized and efforts continue to further refine this strategy. The appropriate intensive care unit and acute care unit length of stay, the number of laboratory draws, the length of activity restriction and the need for radiographic evidence of healing prior to release from activity restriction remain areas of study. Previously demonstrated variation in the management and outcome of injured children between adult and pediatric surgeons has led to debate over which type of facility should best care for injured children. The Pennsylvania Trauma Systems Foundation dataset was used to derive a series of children with severe liver injuries. Finally, the risk of post-splenectomy sepsis, a stimulus for the initial development of nonoperative management, has been further clarified by a literature review. While falls from a low height may infrequently lead to a significant injury, falls from greater heights are more likely to induce a solid organ injury.

Adult↗

PubMed1985

[Biomechanical fragility of the infant skull].

Following previous experiments on postmortem skull fractures of infants, falls from 82-cm heights onto stone (A), carpet (B) and foam-backed linoleum (C), 35 further falling tests were carried out onto softly cushioned ground. In 10 cases a 2-cm thick foam rubber mat (D) was chosen and in 25 further cases a double-folded (8-cm-thick) camel hair blanket (E). Hence the results of altogether 50 tests could be evaluated. In test groups A-C on a relatively hard surface, skull fractures of the parietale were observed in every case; in test group D this fracture was seen in one case and in test group E in four cases. Measurements along the fracture fissures showed bone thickness of 0.1-0.4 mm. The fracture injuries originated in paper-thin single-layer bone areas without diploe, which can also be considered the preferred regions for skull fractures of older infants following falls from low heights. These results indicate that it is no longer possible to assume that the skull of infants is not damaged after falls from table height.

Battered Child Syndrome↗

PubMed2003

Anthropomorphic simulations of falls, shakes, and inflicted impacts in infants.

OBJECT: Rotational loading conditions have been shown to produce subdural hemorrhage and diffuse axonal injury. No experimental data are available with which to compare the rotational response of the head of an infant during accidental and inflicted head injuries. The authors sought to compare rotational deceleration sustained by the head among free falls, from different heights onto different surfaces, with those sustained during shaking and inflicted impact. METHODS: An anthropomorphic surrogate of a 1.5-month-old human infant was constructed and used to simulate falls from 0.3 m (1 ft), 0.9 m (3 ft), and 1.5 m (5 ft), as well as vigorous shaking and inflicted head impact. During falls, the surrogate experienced occipital contact against a concrete surface, carpet pad, or foam mattress. For shakes, investigators repeatedly shook the surrogate in an anteroposterior plane; inflicted impact was defined as the terminal portion of a vigorous shake, in which the surrogate's occiput made contact with a rigid or padded surface. Rotational velocity was recorded directly and the maximum (peak-peak) change in angular velocity (delta theta(max)) and the peak angular acceleration (theta(max)) were calculated. Analysis of variance revealed significant increases in the delta theta(max) and theta(max) associated with falls onto harder surfaces and from higher heights. During inflicted impacts against rigid surfaces, the delta theta(max) and theta(max) were significantly greater than those measured under all other conditions. CONCLUSIONS: Vigorous shakes of this infant model produced rotational responses similar to those resulting from minor falls, but inflicted impacts produced responses that were significantly higher than even a 1.5-m fall onto concrete. Because larger accelerations are associated with an increasing likelihood of injury, the findings indicate that inflicted impacts against hard surfaces are more likely to be associated with inertial brain injuries than falls from a height less than 1.5 m or from shaking.

Accidental Falls↗

PubMed1984

[Experimental studies of skull fractures in infants].

UNLABELLED: According to pediatric statements, falls from a standing position may cause skull fractures in infants without specific symptoms. Nearly every infant has at some time fallen from the changing table or the baby carriage, etc. From the forensic aspect it is the duty of experts to discuss the "battered child syndrome." Evidence given by the defendants concerning the height of the fall are unreliable. Experimental test series concerned with the stumbling height (82 cm in free fall) and three various types of floor-stone, carpet, and foam-backed linoleum -were carried out. In each case skull fractures were seen. In three cases the fractures crossed the sutures. CONCLUSIONS: (1) Each fall of an infant from the height of a table may cause a skull fracture, which may lead to death; (2) when child mishandling is suspected, all circumstances must be taken into consideration.

Accidents, Home↗

PubMed1989

The mortality of childhood falls.

Falls accounted for 5.9% of the childhood deaths due to trauma in a review of the medical examiner's files in a large urban county. Falls represented the seventh leading cause of traumatic death in all children 15 years of age or younger, but the third leading cause of death in children 1 to 4 years old. The mean age of those with accidental falls was 2.3 years, which is markedly younger than that seen in hospital admission series, suggesting that infants are much more likely to die from a fall than older children. Forty-one per cent of the deaths occurred from "minor" falls such as falls from furniture or while playing; 50% were falls from a height of one story or greater; the remainder were falls down stairs. Of children falling from less than five stories, death was due to a lethal head injury in 86%. Additionally, 61.3% of the children with head injuries had mass lesions which would have required acute neurosurgical intervention. The need for an organized pediatric trauma system is demonstrated as more than one third of the children were transferred to another hospital, with more than half of these deteriorating during the delay. Of the patients with "minor" falls, 38% had parental delay in seeking medical attention, with deterioration of all. The trauma system must also incorporate the education of parents and medical personnel to the potential lethality of "minor" falls in infants and must legislate injury prevention programs.

Accidental Falls↗

PubMed2006

Risk factors for unintentional injuries due to falls in children aged 0-6 years: a systematic review.

OBJECTIVE: To identify risk factors for unintentional injuries due to falls in children aged 0-6 years. DESIGN: A systematic review of the literature. METHODS: Electronic databases from 1966 to March 2005 were comprehensively searched to identify empirical research that evaluated risk factors for unintentional injuries due to falls in children aged 0-6 years and included a comparison group. RESULTS: 14 studies met the inclusion criteria. Studies varied by the type of fall injury that was considered (ie, bunk bed, stairway, playground or infant walker) and with respect to the quality of evidence. In general, major risk factors for the incidence or severity of injuries due to falls in children included age of the child, sex, height of the fall, type of surface, mechanism (dropped, stairway or using a walker), setting (day care v home care) and socioeconomic status. CONCLUSION: Despite a high burden, few controlled studies have examined the risk and protective factors for injuries due to falls in children aged 0-6 years. The only study to examine falls from a population health perspective suggests that age, sex and poverty are independent risk factors for injuries due to falls in children.

Accidental Falls↗

PubMed1993

Falling out of bed: a relatively benign occurrence.

OBJECTIVE: To determine the likelihood of injuries occurring to infants and children who fall out of bed. METHODS: A review of hospital records where children were documented to have fallen from a crib or bed and where the children were immediately assessed and examined following the fall. PATIENTS: Two hundred seven children younger than 6 years of age. One hundred twenty-four falls were from cribs and 83 from beds. The heights of the falls were 25 inches from beds or 41 inches when the child climbed over the bed rails and then fell, and 32 inches from cribs or 54 inches for those who fell after climbing the crib rails. RESULTS: There were 29 superficial injuries such as contusions or minor lacerations. One simple skull fracture was noted incidentally on skull roentgenogram and there was one fractured clavicle. There were no serious, multiple, visceral, or life-threatening injuries. Calculation of the momentum of impact between the injured and noninjured showed no significant difference. CONCLUSIONS: Because falls from short distances are unlikely to produce serious injury, the reliability of the history should be questioned when a child has significant injuries said to have resulted from a short fall.

Accidental Falls↗

PubMed1983

[Extreme loading as cause of aseptic loosening of the total hip endoprosthesis socket and the resultant therapeutic consequences].

An analysis of the extent of damage in explanted endoprostheses of the hip showed massive destructions of the implanted components, such as fractures of the socket etc. For this reason, the authors designed a mathematical model of the extremity for which a prosthesis is designed; this model can simulate, inter alia, extreme loads of the joint occurring, for example, when a person falls. Self-experiments were helpful in determining the load exercised on the hip joint under such extreme conditions and in defining the effects on implanted joint material and the interface between bone and bone cement. Besides the influence of the body weight and the height of a fall, we also investigated dependence on attenuation promoted by different kinds of shoeware. These extreme loads in everyday life, which result in an excess stress of the materials and the interface, provide a good explanation for the aseptic loosening of the primarily well-fixed socket. From the therapeutic point of view these results suggest that such extreme burdening should be avoided during the time in which repair processes take place to gradually reduce the heat necroses in the osseous bed of the acetabulum which are due to the cement, by exercising a partial load only for three months after the operation rather than applying the full load too early. Attenuation of shock achieved by the use of various shoe materials was studied in self-experiments in which the researcher allowed himself to fall from different heights on to an outstretched leg while wearing different types of shoes.(ABSTRACT TRUNCATED AT 250 WORDS)

Body Weight↗

PubMed2001

Transverse sacral fractures: case series and literature review.

OBJECTIVES: To report experience with transverse sacral fracture, an uncommon injury frequently associated with neurologic deficit, and to perform a meta-analysis of the literature in order to define the role of decompression for the management of sacral fractures. DESIGN: A review of 7 cases. SETTING: A university-affiliated tertiary care centre. PATIENTS: Seven patients with transverse fractures of the sacrum. The mean follow-up was 13 months. INTERVENTIONS: A review of the clinical data and a search of the literature for studies that reported on 4 or more patients with a transverse sacral fracture. MAIN OUTCOME MEASURES: Mechanism of injury, type of neurologic deficit and its management. RESULTS: The most common mechanism in the 7 study patients was a fall from a height. Six patients had neurologic deficits, mostly in the form of bowel or bladder disturbance. Five of these were treated with surgical decompression, and 4 of them had an improvement in neurologic function. The 7 original studies from the literature dealt with a total of 55 patients. As in the study patients, falls from a height and motor vehicle accidents predominated as the mechanisms of injury. In contrast to patients in this study, 20 of 48 patients in the literature review with neurologic deficits were treated conservatively. CONCLUSIONS: The outcomes in this study are similar to those reported in the literature. The place of surgical decompression for patients with neurologic deficit cannot be clearly determined from the evidence currently available.

Accidental Falls↗

PubMed1993

Fatal agricultural accidents.

During the period 1969-1988, 33 victims (30 males and 3 females) of agricultural accidents were autopsied at the University Institute of Forensic Medicine in Copenhagen. Five were under the age of 15 years. The median age was 51 years. The most frequent types of accident were machinery accidents (45%), falling from a height (30%) and suffocation, including drowning, (12%). The place of the accident was meadow/field (36%), stable/barn (24%), farmyard (24%) and public road (12%). Severe lesions in all body regions dominated the picture with a preponderance of skull/brain and chest lesions. Skull/brain lesions were found in 80% of the cases of falling from a height, while 87% of the machinery accident cases had severe chest lesions. More effective control of machinery and a data collection system for these accidents are proposed.

Accidents, Occupational↗

PubMed1997

Injuries after falls at work in the United Kingdom and Sweden with special reference to fractures in women over 45.

OBJECTIVES: To describe the relation with age of risk of reported injury after a fall among women at work in two countries, the United Kingdom and Sweden, with particular emphasis on fractures, and to interpret these data. METHODS: Rates of accidents compiled under the national reporting regulations of each country during a two year period were described by age, sex, cause (fall on the level, fall from a height, other), and occurrence of fracture, with emphasis on the relative risk (RR) in workers aged 45 years and over compared with those aged under 45. For fractures (major fractures only in the United Kingdom) among women, RRs were calculated for all occupations, with the three digit occupational classification schemes of each country. Summary RRs for older versus younger women, directly standardised for occupation, were derived. RESULTS: Among women, RRs for injury after a fall on the level and fall from a height were 2.77 and 1.77 respectively in Sweden and 2.28 and 1.54 in the United Kingdom. When restricted to fractures, the RRs became 4.75 and 3.66 respectively in Sweden and 3.35 and 1.97 in the United Kingdom. Standardisation for occupation gave RRs for fractures of 4.87 and 3.75 in Sweden and 3.43 and 2.16 in the United Kingdom. Almost all occupational groups with enough fractures for analysis showed an excess of fractures related to falls among older women. A different age pattern was seen for all injuries or fracture after other types of accidents and for all types of accident in men. CONCLUSION: It is argued that, for fractures at least, the results for women are unlikely to be due to reporting bias and unlikely to be explained by a greater exposure to workplace hazards among older women. Whether there is an increased risk of falling, as distinct from sustaining a fracture, is not clear. The generality of the increased risk suggest that efforts should be made to minimise hazards in all occupational sectors, particularly those using many women.

Accidental Falls↗

PubMed1986

The pathophysiology of free-fall injury.

The spectrum of injuries created by a free fall are governed by distinct physical properties, of which the height of the fall and the nature of the impacted surface are the most important factors. Other determinants include the victim's age and weight and the position at landing. Orthopedic injuries frequently are encountered in falls from two stories and less, and are largely determined by the position at landing. Visceral trauma, produced by deceleration forces, frequently involves the liver, spleen, lung, heart and aorta, and must be suspected in falls from three stories and more regardless of the landing position. Mortality from a six-story fall onto a hard surface such as concrete is almost 100% for adults, although considerably less for children. Falls onto softer surfaces, including water, are better tolerated. By appreciating the physical principles that dictate the type and degree of injury, one may correctly diagnose and manage free-fall injuries.

Accidents↗

PubMed1991

Accidents on hospital wards.

Eight hospitals reported 781 non-iatrogenic accidents occurring to patients and visitors under 16 years of age during an 18 month period up to October 1989. Accidents more often involved boys and children aged 3 to 5 years old. Falls from a height, slips, and striking accidents were common by day and falls by night. A total of 41% of accidents to inpatients occurred when parents were present. Only three accidents were serious. Altogether 27% involved beds and cots, and only one consequent injury was more than minor. Data collected routinely in case of medicolegal action can be presented in a form that may facilitate preventative work. Potentially remediable causes for concern include falls from beds and cots and the use of makeshift equipment.

Accident Prevention↗