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The management of penetrating injuries of the anterior triangle of the neck.

The management of penetrating injuries of the anterior triangle of the neck is controversial and poses several problems. A policy of mandatory neck exploration of these injuries is followed in the Department of General Surgery at the State Hospital, Windhoek. A retrospective study of patients presenting to one of the four surgical firms at The State Hospital was performed to see if this policy was justified. Twenty-seven patients were reviewed of which 25 presented acutely and two presented late with severe complications. The clinical and operative findings and the mortality rate of 7 per cent were similar to previous reports. The negative exploration of 30 per cent was less than previous reports of mandatory neck exploration for penetrating trauma. This may have been because exploration was limited to injuries involving the anterior triangle of the neck in this series. All 14 patients with positive clinical findings were found to have injuries at exploration and five of 13 patients (38 per cent) with no clinical signs were found to have injuries. Given these results and in the setting of The State Hospital it was felt that the policy of mandatory exploration was justified.

Acute Disease↗

Emergency department evaluation and treatment of the neck and cervical spine injuries.

In the United States, nearly 5 million patients per year require spinal immobilization. The emergency physician (EP) must be able to efficiently and effectively manage these patients. To do so, the EP must have an understanding of cervical spine anatomy, spinal immobilization techniques, specific injury patterns, optimal imaging studies, and associated injuries and treatment modalities. This article addresses these important issues and discusses other challenges in the management of cervical spine injuries.

Athletic Injuries↗

Whiplash injuries.

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Neck Injuries↗

[Shotgun injury of head and neck: case report].

A 48-year-old male was hit by a shotgun blast from behind while he was hunting. He was only 7 meters away when one of his colleagues pulled the trigger accidentally. About 180 lead pellets penetrated his head and neck. When he was brought to our hospital, he was alert and complained of occipital and nape pain, but had no apparent neurological deficits. We administered 200 mg of dimercaprol immediately and removed 77 pellets by midline suboccipital incision on the next day. Afterwords, we performed four minor operations using a fluoroscope, and removed another 70 pellets by day 29. In addition, we administered a 100 mg x 3 dose of dimercaprol every other week. He was discharged 41 days after the accident without any acute signs of lead poisoning. Though serum lead level did not rise to critical level, EDTA was continued after his discharge to prevent delayed lead poisoning from the retained pellets. Since we seldom encounter this type of patient in Japan, delayed lead poisoning by shotgun injury was discussed with reference to the literature.

Chelating Agents↗

Penetrating neck trauma: hidden injuries-oesophagospinal traumatic fistula.

Injuries to the eosophagus are notoriously difficult to diagnose pre-operatively. Patients with such injuries usually will not have pre-operative signs and symptoms to suggest the presence of this type of injury. These injuries require a high index of suspicion, appreciation of the presence of injuries to adjacent structures, and an understanding that the clinical and radiological findings may evolve over a period of time. We describe a child with a rare presentation of an acute traumatic esophageal spinal fistula due to a bullet wound. This complicated injury required a variety of diagnostic modalities, including contrast radiography, multiple computerised tomography (CT) scans and operative assessments to make the definitive diagnosis.

Child↗

Cervical facet capsular ligament yield defines the threshold for injury and persistent joint-mediated neck pain.

The cervical facet joint has been identified as a source of neck pain, and its capsular ligament is a likely candidate for injury during whiplash. Many studies have shown that the mechanical properties of ligaments can be altered by subfailure injury. However, the subfailure mechanical response of the facet capsular ligament has not been well defined, particularly in the context of physiology and pain. Therefore, the goal of this study was to quantify the structural mechanics of the cervical facet capsule and define the threshold for altered structural responses in this ligament during distraction. Tensile failure tests were preformed using isolated C6/C7 rat facet capsular ligaments (n=8); gross ligament failure, the occurrence of minor ruptures and ligament yield were measured. Gross failure occurred at 2.45+/-0.60 N and 0.92+/-0.17 mm. However, the yield point occurred at 1.68+/-0.56 N and 0.57+/-0.08 mm, which was significantly less than gross failure (p<0.001 for both measurements). Maximum principal strain in the capsule at yield was 80+/-24%. Energy to yield was 14.3+/-3.4% of the total energy for a complete tear of the ligament. Ligament yield point occurred at a distraction magnitude in which pain symptoms begin to appear in vivo in the rat. These mechanical findings provide insight into the relationship between gross structural failure and painful loading for the facet capsular ligament, which has not been previously defined for such neck injuries. Findings also present a framework for more in-depth methods to define the threshold for persistent pain and could enable extrapolation to the human response.

Animals↗

Selective management of penetrating neck trauma based on cervical level of injury.

BACKGROUND: Selective surgical exploration of penetrating neck wounds is now the standard of care, but the safety and cost effectiveness of selective diagnostic testing remains controversial. We herein review our 18-year prospective evaluation of a progressively selective approach. PATIENTS AND METHODS: Since 1979, 312 patients sustained penetrating trauma to the anterior neck; 75% were stabbed and 24% were shot. Zone I was penetrated in 13%, zone II in 67%, and zone III in 20%. RESULTS: In all, 105 (34%) of the patients had early exploration (16% were nontherapeutic). Of the 207 (66%) observed, 1 (0.5%) required delayed exploration. Length of stay was 8.0 days following exploration, 5.1 days following negative exploration, and 1.5 days following observation. In the last 6 years, 40% have had adjunctive testing: 69% of zone I, 15% of zone II, and 50% of zone III injuries. CONCLUSION: Selective management of penetrating neck injuries is safe and does not mandate routine diagnostic testing for asymptomatic patients with injuries in zones II and III.

Humans↗

Quantification of acute neck pain following whiplash injury by computer-aided pressure algesimetry.

Until now the clinical investigation of cervical pain due to whiplash injury is mainly based on finger palpation. The present study introduces a PC-interactive pressure algesimetry to standardize cervical pain measurement. Pressure pain scores of the splenius and trapezius muscles of 23 patients with an acute cervical syndrome after whiplash injury were compared to those of 24 healthy subjects. The pressure painfulness of neck and shoulder muscles was significantly increased in whiplash patients. The splenii muscles showed an equally increased muscle pain whereas the trapezii muscles showed a left-sided preponderance of painfulness, possibly due to the seat belt position in this group of motor vehicle drivers. The computer-interactive pressure algesimetry enables a standardized and rater-independent quantification of the cervical syndrome with neck and shoulder pain caused by whiplash injury.

Adolescent↗

An analysis of the post-mortem findings in the 21 victims of the Birmingham pub bombings.

On the evening of 21 November, 1974 explosions occurred almost simultaneously in two crowded public houses in the centre of Birmingham. Of the 21 people who died, 18 were killed outright and 3 died later in hospital. All 21 cases showed the terrible multiple injuries associated with close proximity to a powerful explosion within a confined space. Although all the victims suffered one or more injuries which alone would have been fatal, certain patterns of injury were noted which, if appreciated early in any future similar incident, may help to save the lives of those who are futher removed from the centre of the explosion or exposed to one of lesser force.

Abdominal Injuries↗