• A Stančák, J Kautzner, and V Havlas.
• Klinika dětské a dospělé ortopedie a traumatologie 2. Lékařské fakulty Univerzity Karlovy v Praze a Fakultní nemocnice v Motole.
• Acta Chir Orthop Traumatol Cech. 2016 Jan 1; 83 (1): 38-42.

Purpose Of The StudyAvulsion fractures of the anterior superior iliac spine (ASIS) and anterior inferior iliac spine (AIIS) are rare injuries to the skeleton in children. They are most frequent in adolescent athletes, such as sprinters and long-distance runners, and football players. The authors present a group of patients treated at their department and compare the results of procedures used to manage different pelvic avulsion fractures.Material And MethodsBetween 2005 and 2012, 38 patients (31 boys and seven girls) with an average age of 15.1 years (range, 4-17 years) were treated. Fourteen patients with minimally displaced fractures were treated conservatively, 24 patients with fractures displaced more than 1 cm underwent surgery. All patients had a standard rehabilitation protocol. Post-operative assessments included: the range of motion in the hip; X-ray at 6 weeks, 3 months and 1 year; duration of bed rest; return to previous activities; occurrence of complications (heterotopic ossification, infection, etc).ResultsAll patients returned to the pre-injury level of sports activities. Recovery was faster and early rehabilitation was better tolerated in patients treated surgically (p = 0.03), particularly in those with AIIS avulsion fractures. Ambulation with partial weight bearing was possible on average at 7.2 days (range, 2-10 days) in surgically treated patients and at 24.1 days (18-27 days) in conservatively treated patients; the difference was statistically significant (p = 0.02). The range of motion markedly improved in surgically treated patients as early as at 6 weeks while, in conservatively treated patients, the comparable outcome was achieved at 3 months of follow-up (p = 0.02). The time necessary for radiographic evidence of fragment union as well as full recovery was comparable in both patient groups. No deep wound infection was recorded; minor heterotopic ossification was detected in five patients, but no further treatment during follow-up was required.ConclusionsIndications for surgical treatment are based on the degree of fragment displacement and the patient's demands for sports activities. Although long-term outcomes of both operative and conservative procedures are comparable, the patients treated surgically show faster recovery and need a shorter time of immobilisation. However, removal of osteosynthesis material may be associated with some risk of complications.

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