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PREDICTION OF DEFORMITY IN CHILDREN AND ADOLESCENTS WITH TIBIAL FRACTURES TREATED ORTHOPEDICALLY

7th Congress of the European Federation of National Associations of Orthopaedics and Traumatology, Lisbon - 4-7 June, 2005



Abstract

Objective: To study deformities in tibial fractures that are treated orthopedically.

Material and Methods: A prospective study of 42 tibial fractures treated orthopedically (1996–2003), Average age was 8.9 years, Nineteen (45.2%) were male and 23 (54.3%) were female. Average follow-up was 59.6 months. Nineteen of the fractures (45.2%) were medial third and 23 (54.8%) were distal. The fracture line was spiral in 26 cases (61.9%), oblique in 10 cases (23.8%) and transverse in 6 (4.8%). In 18 cases (42.9%), there was a facture of the fibula and in 24 cases there was not (57.1%). Exclusion criteria: previous fractures, angular deformities less than 5 and surgical treatment. At one year post-concolidation, antero-posterior and lateral X-rays were taken and if the angular deformity was greater than 5 a tibial CT was done to measure axial rotation. Descriptive statistical and non-parametrical studies was done with signification p < 0.05.

Results: Varus deformity was 5.8, valgus 6, recurvatum 6.5 and antecurvatum 4, In 23 cases (54.8%), an association varus and recurvatum was found, in 9 cases (21.4%) valgus- recurvatum were associated, and in five cases each there was varus- and valgus- antecurvatum associations (11.9%). Healthy tibia had an external rotation of 38.2, while the rotation of fractured tibia was virtually the same at 38.5. In fractures of the medial third, external rotation decreased 8.3(55.6% cases). When the fibula was intact, external rotation was 6.4(40%) and decreased 8.7 (17.5%). When was fractured, decreased 6.5(30% cases). Localization and fracture line had no impact on results. external tibial rotation was greater for intact fibula than for fractured ones (p= 0.03).

Conclusions: 1) The majority of tibias treated orthopedically consolidated in varus or valgus-antecurvatum, 2) When there was a lesion of the fibula, the consolidation of the external rotation of the tibia increased, when there was no lesion to the fibula, it decreased.

Theses abstracts were prepared by Professor Roger Lemaire. Correspondence should be addressed to EFORT Central Office, Freihofstrasse 22, CH-8700 Küsnacht, Switzerland.