Abstracts Posters SICOT-SOF meeting Gothenburg 2010 _2_

Poster
Topic: Trauma - Hip
Abstract number: 26499
TRAUMATIC ANTERIOR HIP DISLOCATION IN AN 8 YEARS OLD CHILD: CASE
REPORT, REVIEW OF THE LITERATURE
Tiago BARBOSA, Rui CERQUEIRA, José FRAGA FERREIRA, Sofia VIçOSO,
Fernando LIMA
Centro Hospitalar do Alto Ave - Guimarăes, Guimarăes (PORTUGAL)
Introduction: Traumatic dislocation of the hip is a relatively rare occurrence in
paediatric population. The trauma required to produce a dislocation varies from
minimal to severe high-energy forces. Anterior dislocation of the hip in this age group
should be considered a serious injury.Material and Methods: We report a case of
anterior hip dislocation in an 8 years old boy who suffered a hit by a car. The childs
hip was reduced under general anaesthesia without delay (1 hour after the injury) or
sequelae. MRI examination after reduction revealed haematoma associated with
partial rupture of the obturator externus muscle and adductor minimus muscle,
without other associated lesions. After the reduction, the child was submitted to skin
traction with adhesive strapping for 15 days. Subsequently, gradual weight bearing
was allowed.Results: After 1 year, functional result of the hip was good without
restriction of physical activity. The radiographic and MRI examination showed normal
hip joints.Discussion: Despite the severe intensity of the trauma, the fact it was an
anterior dislocation without associated injuries and the child had the dislocation
reduced promptly, possibly contributed to the good result obtained in the follow-up. A
review of the literature shows that, if the diagnosis and immediately reduction are
delayed, the morbidity, such as avascular necrosis or osteoarthritis of the femoral
head, may be significant.Conclusion: A poor prognosis is conferred by trauma of
considerable intensity, presence of fractures associated with the dislocation, open
dislocation, delayed reduction and advanced skeletal maturity of the patient.
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