Unstable pelvic fractures in children.

A total of 3561 freshly injured children received treatment at the paediatric trauma department of the National Institute of Traumatology between 1984 and 1994. Out of these 38 (approx. 1%) had pelvic fractures. Based on the classification of Tile and Laer, 15 pelvic fractures were diagnosed to be unstable, from which 8 were polytraumatised, 4 shocked and 1 was a casualty. Run downs could be considered as the main cause of these fractures. Conservative treatment was provided for 13 unstable cases (bed rest: 5, band suspension: 1, femur skeletal traction: 4, femur traction and band suspension: 3). Surgery was performed in 2 cases (symphysis cerclage: 1, acetabulum plate o.s.: 1). Eleven patients were called in for late controls (after 3 years). Subsequent complications were: pain: 3, limb shortening: 4, lumbal scoliosis: 1, minor pelvic deformations: 4, partial necrosis of caput femoris: 2. The subjective complaints of 3 adolescent cases seem to be small in number, however, it is a fair assumption that the control period of 3-6 years later is not enough to form a comprehensive conception on the nature of early degenerative deformations occurring later, e.g. during adulthood. Because of further surgeries and examinations, correct traction and suspensional treatment can only be carried out with great difficulties regarding children. Therefore, posterior stabilisation of the pelvic ring must be planned with percutaneous sacroiliac pinning or screwing in unstable cases.