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PubMed1981

Skiing injuries.

Ski injuries were studied over a six-year period at a ski area in Northern Vermont. While the injury was being treated we gathered injury, anthropometric and ability data. The binding was tested using ASTM techniques. We found all injuries to decrease but there was a bigger reduction in lower leg injuries. There was a marked decrease of the mean release torque towards the ASTM recommendations of the lower extremity group, which was attributed to be the reason for the decrease in injury rate. The medial collateral ligament injury continues to be the most prevalent of the lower extremity injuries. Injury mechanisms of this injury were explored. More work to understand how to protect the knee needs to be done.

Age Factors↗
PubMedDate not supplied

Ankle flexibility and injury patterns in dancers.

Lower-extremity injuries are common among dancers and cause significant absences from rehearsals and performances. For this study of lower-extremity injuries in 101 ballet and 47 modern dance students, injuries requiring medical attention sustained over 1 academic year were associated with the following data obtained at the beginning of the school year: ankle flexibility, sex, dance discipline, previous injury, body mass index, and years of training. Eighty-three of the 148 students (age range, 12 to 28 years) reported prior lower-limb injuries, the most common being ankle sprains (28% of all dancers). Previous leg injuries correlated significantly with lower dorsiflexion measurements and with more new injuries. Female students had greater ankle and first metatarsophalangeal flexibility. Modern dancers had greater ankle inversion. Ninety-four students sustained 177 injuries during the study, including 75 sprains or strains and 71 cases of tendinitis. Thirty-nine percent (N = 69) were ankle injuries; 18% (N = 33) were knee injuries; 23% (N = 40) were foot injuries; and 20% (N = 35) were either hip or thigh injuries. Sixty-seven percent (N = 78) of the injured students were ballet dancers. Age, years of training, body mass index, sex, and ankle range of motion measurement had no predictive value for injury; previous injury and dance discipline both correlated with increased risk of injury.

Adolescent↗
PubMedDate not supplied

[Site of injuries in falls on staircases].

52 autopsy cases in combination with falls on staircases examined in the Bonn Institute of Legal Medicine in 1992 to 2000 were evaluated with respect to the query whether the morphological criteria were valid for reconstruction of the fall, in what way facial injuries were involved and whether isolated trunk injuries caused the death. In 80 per cent of all cases the localization of impact on skull and trunk could be deliminated in regards to heaviness of injuries with fractures and involvement of inner organs. Facial injuries were noticed in 50 per cent and were--as well as arm and leg injuries--caused by strike in fall or after impact. In only two cases in consequence of falls on staircases trauma of the trunk led to death by bleeding.

Accidental Falls↗
PubMed1991

[Mechanical impedance: a new noninvasive method for measuring tissue pressure in anterior compartment syndrome. II. Results of clinical measurements in patients with tibial trauma].

In acute compartmental syndrome, it is difficult to decide on the basis of clinical criteria alone whether fasciotomy is indicated or not. Reliable and objective parameters are required before a treatment schedule can be devised. We tested mechanical impedance as a parameter for the pressure inside the tissue. The technique and associated apparatus for measuring mechanical impedance of the skin overlying the anterolateral compartment of the lower leg are described in detail. We performed the non-invasive measurement in 25 patients with leg injuries. There were 2 patients with acute compartmental syndrome and 5 with imminent compartmental syndrome. In normal legs, the mechanical impedance was between 2 and 6.5 kg/s, with an average of 3.83 kg/s. After the impedance is increased to 10 kg/s or higher, there is acute or imminent compartmental syndrome. Once the compartment has been decompressed by unilateral parafibular fasciotomy, the mechanical impedance decreases to normal values. Clinically relevant results were obtained by this method and they correlated well with the other clinical findings.

Adolescent↗
PubMed2001

[Single injuries to distal leg arteries].

The appropriate treatment of an injury to a single arterial vessel of the calf is still a matter of discussion. Isolated injury of one of the calf arteries is generally not considered to cause severe ischemia of the leg. Other factors such as the degree of concomitant trauma to bones, nerves, veins and soft tissue, which may impair collateral circulation, seem to represent the real threat for the survival of the extremity. On the other hand, high numbers of amputations were reported after the Second World War following ligation of an injured single vessel of the calf. Concomitant injuries are poorly documented in these reports. Consequently a good physical examination as well as arteriography, duplex ultrasound scan and a high index of suspicion are mandatory to evaluate the impaired circulation of the calf and to prevent hasty ligation of a single vessel.

Adolescent↗
PubMed1989

Amputation for antipersonnel mine injuries of the leg: preservation of the tibial stump using a medial gastrocnemius myoplasty.

Antipersonnel mines are very commonly used in modern warfare. They produce a recognisable pattern of injury to the leg, which frequently spares the gastrocnemius muscle. Surgical amputation is often indicated. Medial gastrocnemius myoplastic below-knee amputation is suitable for these injuries. The technique permits cover and preservation of an acceptable tibial stump.

Amputation, Surgical↗
PubMed2005

An experimental model of an electrical injury to the peripheral nerve.

OBJECTIVE: Injury to the peripheral nerves is a common complication found in patients suffering from electrical burns. At present, there are many kinds of experimental models for electrical injury, but no report describes an animal-based experimental model for a relatively simple electrical injury to the peripheral nerves. We have designed and constructed a specific device to generate increasingly severe electrical shocks of a known voltage for the experiment. This device can simulate injuries of different degrees (minor, medium and severe) caused by shock to the right sciatic nerve of rats. METHOD: Thirty Sprague-Dawley rats were randomly divided into Group I (3600 V, n=10), Group II (1000 V, n=10) and Group III (500 V, n=10). The voltage required for the electrical shock was generated by the above-mentioned device and was adjusted to deliver 3600, 1000 and 500 V, respectively. The specific voltage, as mentioned above, was delivered three times to the right sciatic nerve of the rats. The shock duration was set to last for 10 ms. The time interval between the shocks was 3 min. Three rats were randomly selected from each group to observe changes in the morphology, electric physiology of the nerve and their histology the first, second and fourth week after injury. RESULTS: All rats survived the injuries. Leg function was partially impaired and swellings occurred on the injured extremity. However, by the second week after the injury the rats had recovered. Digit ulcers were observed by the fourth week after injury in Groups I and II. Neural electric physiology showed that the recovery rate of the neural conduction velocity (RNCV) disappeared in part or in whole immediately after the injury in experimental rats. RNCV recovered up to 65% in Group III and to 7% in Group II by the fourth week after injury, however, RNCV did not recover in Group I at all. Histology showed that blood vessel embolism occurred within the injured nerve. A large number of nerve fibres experienced Waller degeneration while the myelin sheath was vacuolated. The neural plate disintegrated largely by the first week after injury and the myelin sheath disintegrated into a loose structure by the second week after injury in Group I. Group II displayed a similar situation as Group I, wherein some nerve fibres experienced Waller degeneration and disintegration. Regenerative myelin appeared in some rats at about the fourth week after injury. The following changes were seen in Group III: The degree of neural injuries was different. The point of entry of the electric currents showed obvious Waller degeneration and disintegration of the myelin sheath, while some nerves showed a regenerated myelin sheath by the second week after injury. The morphology (such as quantity and diameter) of the injured myelin was basically normal by the fourth week after injury. CONCLUSION: This device can produce controlled injuries to the sciatic nerve giving different degrees of severity (minor, medium and severe), by means of varying the electrical shock voltage and shock duration on the rats. It is a useful model for experimental studies of injuries to peripheral nerves.

Animals↗
PubMed2005

Fusarium sporodochia on cutaneous wounds.

A histopathological review of 24 cases of Fusarium-spp. culture-positive human specimens reveal sporodochia in eight cases, all of which were cutaneous injuries. These included three patients with burn wounds, three patients with ischemic necrosis, one patient who suffered trauma with extensive contamination of the injury with vegetation, and one patient with an ischemic skin graft placed for treatment of a non-healing traumatic leg injury sustained in a motor vehicle-pedestrian accident. Sporodochia consisted of swollen cells giving rise to parallel-oriented hyphae that extended upward above the surface, giving rise to a carpet of conidia on its uppermost aspect. Sporodochia have not been previously reported in humans. The presence of Fusarium sporodochia has implications with respect to infection control, as clinical care practices must be tailored to minimize potential aerolization of conidia, chlamydospores and rare budding cells, with resultant spread of the fungus during surgical manipulation, bandage change or cleaning of cutaneous wounds.

Dermatomycoses↗
PubMed2006

Effects of the new karate rules on the incidence and distribution of injuries.

OBJECTIVES: To evaluate the incidence and distribution of injuries in karate before and after the implementation of new rules established by the World Karate Federation in 2000. METHODS: Injury incidence was followed up during the official karate competition seasons of 1997 and 2002 in Croatia. A questionnaire was used to collect data on the age and sex of the competitor and localisation and severity of injury. Data were analysed separately for female and male competitors and age categories < 18 and > or = 18 years. RESULTS: A total of 2023.5 and 2584 minutes of active fighting (exposure time) was assessed for 1997 and 2002 respectively. The overall injury incidence rate (IR) was similar in 1997 and 2002 (10.28 and 9.82/100 exposure minutes respectively). The relative risk (RR) of injury was significantly higher in 1997 than in 2002 for competitors younger than 18 years (RR 1.55, 95% confidence interval (CI) 1.11 to 2.16). The overall RR of head injury was significantly higher in 1997 than in 2002 (RR 1.96, 95% CI 1.54 to 2.49), but the RR of leg injury was significantly lower in 1997 than in 2002 (RR 0.16, 95% CI 0.09 to 0.28). Most injuries (> 98%) were categorised as mild (grade 1) in both periods studied. CONCLUSIONS: The results of this study confirm the importance of the new competition rules in the distribution and prevention of injuries in martial arts. Strict judging and heavy penalties for uncontrolled blows, particularly for the youngest competitors, can significantly decrease the risk of injury.

Adolescent↗
PubMed1990

Armoured fighting vehicle injuries in peacetime.

A year-long prospective study of injuries caused by armoured fighting vehicles on exercises in West Germany revealed that 2 soldiers were killed. Another 41 needed hospital admission for treatment of injuries of the lower limb (16), upper limb (15), head (8) and back (2). Tank loader/signallers were peculiarly susceptible to severe leg injuries, due to the ankle being trapped and twisted by the turret rotating within the hull. Insecure, falling hatch covers accounted for many of the hand, head and back injuries. Soldiers in training need to be made more aware of these particular hazards. Reduced caution would make injuries such as these more common during armoured warfare, and their statistics should be included in casualty estimates.

Accidents↗
PubMed1983

Massive ectopic calcification of the leg following nerve injury.

Four cases showing massive ectopic calcifications in muscles of the lower leg combined with nerve paralysis following war injuries or traffic accident are reported. The development and increase of localized soft tissue calcifications were observed for several years. One case was treated by extirpating the ectopic calcified mass. Several operations were performed because of abnormalities in the feet as a sequel of nerve injury. No clear connection was observed between primary infection or reduced blood supply and development of calcification, although microtrauma of paretic muscle fibers is believed to cause partially induction of massive ectopic calcifications in the cases described.

Adult↗
PubMed2004

A new rodent model of hind limb penetrating wound injury characterized by continuous primary and secondary hyperalgesia.

UNLABELLED: This article reports the development of a new hind limb pain model in which an incisional stab wound is placed on the front and back of the calf, causing both superficial and deep tissue injury. The injury causes primary mechanical hyperalgesia on the calf and secondary hind paw hyperalgesia, which served as the focus of the present study. Animals with unilateral stab wounds showed a significant increase in percent paw withdrawal (secondary mechanical hyperalgesia, reversed by morphine administration) from 2 to 48 hours after surgery, but no evidence of thermal hyperalgesia. In contrast, animals with bilateral leg injuries showed bilateral secondary mechanical and thermal hyperalgesia. Rats with unilateral leg incisional stab wounds showed a significant decrease in cage activity in both the horizontal and vertical directions, monitored by using a novel activity box approach, as compared to their 24-hour baseline levels or to the activity of naïve animals. Analysis of spinal cord Fos labeling demonstrated that calf injury significantly increased Fos expression in laminae I to VI of the L3-L5 cord segments. The data indicate that this model might be useful for evaluation of the mechanisms underlying penetrating injury-induced primary and secondary hyperalgesia or for testing the effect of analgesics on hyperalgesia induced by such injury. PERSPECTIVE: Stab wounds and other types of penetrating wounds routinely encountered in emergency rooms and clinics are accompanied by pain associated with superficial and deep tissue injury. Here we present a rodent stab wound model that affords an opportunity to study the mechanisms of pain associated with traumatic injury.

Analgesics, Opioid↗