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Total hip reconstruction after sarcoma resection in children with a free vascularized fibula without osteotomy of the bone flap: Technique description and case series

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ELSEVIER SCI LTD
DOI: 10.1016/j.bjps.2022.04.074

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Hip reconstruction; Vascularized epiphyseal transfer; Paediatric reconstruction; Oncologic reconstruction

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This study describes the outcomes of hip reconstruction in paediatric patients using a vascularized fibular flap combined with a radius allograft. The results suggest that this technique is a safe and effective option for children who have undergone femoral head tumor resection.
Background: Hip joint reconstruction following intra-articular resection of the femoral head in children is a highly demanding challenge. We aimed to describe the outcomes of hip reconstruction in paediatric patients with a free fibular epiphyso-diaphyseal flap based on both anterior tibial and peroneal vessels within a radius allograft.Patients and methods: Four patients underwent hip reconstruction following this technique between 2013 and 2020 at La Paz University Hospital (Madrid, Spain). The postoperative follow-up period ranged between 12 months and seven years. Two of the patients were diagnosed with Ewing's sarcoma and two with osteosarcoma. The median age at the time of surgery was eight years (six to nine).Results: Three patients remained to be disease-free at the time of this study, and one died shortly after surgery, so he was excluded from the reconstruction analysis of results. No post-operative complications requiring reintervention were recorded. Imaging studies (X-ray and MRI) showed three-dimensional growth of the flap and integration of the allograft. Mean leg length discrepancy was 1.3 cm (0 to 2.3). At the last follow-up visit, all patients were able to ambulate.Conclusion: For children following oncological resection of the femoral head, reconstruction with a vascularized epiphyso-diaphyseal fibula flap combined with radius allograft is a safe option. This procedure provides encouraging functional results and avoids the complications of previously published techniques or implants.(c) 2022 British Association of Plastic, Reconstructive and Aesthetic Surgeons. Published by El-sevier Ltd. All rights reserved.

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