The objective of the study was to assess functional outcomes and quality of life of patients treated for tibial tubercle avulsion fractures (TTAFs). Retrospective study of patients under 18 years of age treated from June 2011 to May 2018. Demographic data included age, gender, mechanism of injury, side, fracture classification, associated injuries, predisposing factors, and type of treatment. Clinical results included knee range of motion, pain, return to sports, overall satisfaction, functional outcomes, and complications. At final follow-up, Tegner Lysholm Knee Scoring Scale, and Kidscreen-10 were applied. Ten patients were included, all males, with a median age of 15 years. Mechanism of injury: football (three patients), basketball (two patients), running (two patients), handball (one patient), gymnastics (one patient), and fall (one patient). Nine were treated surgically with reduction and fixation with cannulated screws or Kirschner wires, plus treatment of associated injuries (three patellar tendon avulsions, one contralateral proximal tibia epiphyseal fracture, and two prophylactic fasciotomies). One patient developed mild recurvatum and two presented minor decreased knee flexion. Eight patients returned to their previous level of sports activity. Median Tegner Lysholm Knee Score was 100/100 and Kidscreen-10 was 50/50. With appropriate treatment, nearly 100% of TTAFs have good functional outcomes and low impact on quality of life.
Objective: To evaluate the correct placement of transpedicular screws in the thoracic, lumbar and sacral spine using the free hand technique. Methods: Clinical and imaging (CT scan) evaluation of 25 patients (13 female and 12 male) undergoing spinal instrumentation for a total of 124 transpedicular screws applied using the free hand technique. The screws were inserted from T11 to S1, most of which were placed at levels L4, L5 and S1. Results: 94% of transpedicular screws were placed correctly in the pedicle. It was found that 6% (seven screws) were misplaced and among those, only two violated the inferomedial wall, one less than 2 mm and the other between 2 and 4 mm. None of the patients had complications associated with incorrect positioning of the screws. Conclusion: The free hand technique is safe to be used in the instrumentation of the thoracic, lumbar and sacral spine.Keywords: Lumbar vertebrae; Bone screws; Spinal fusion. RESUMO Objectivo: Avaliar a técnica free hand de colocação de parafusos transpediculares na coluna torácica, lombar e sagrada. Métodos: Avaliação clínica e imagiológica (tomografia computorizada) de 25 pacientes (13 mulheres e 12 homens) submetidos a instrumentação vertebral num total de 124 parafusos transpediculares aplicados, utilizando a técnica free hand. Os parafusos foram inseridos de T11 a S1, e a maioria destes foram colocados nos níveis L4, L5 e S1. Resultados: 94% dos parafusos transpediculares estavam correctamente colocados no pedículo. Verificou-se que 6% (7 parafusos) estavam mal colocados e destes apenas dois violavam a cortical inferomedial, um destes apresentava uma perfuração inferior a 2 mm e o outro entre 2 e 4 mm. Nenhum dos pacientes seguidos apresentou complicações associadas ao incorrecto posicionamento dos parafusos. Conclusão: A técnica free hand é segura na instrumentação da coluna torácica e lombo-sagrada. Descritores
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