Artículos

Permanent URI for this collectionhttps://hdl.handle.net/20.500.14595/813

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Oncologic reconstructive surgery of the talus with structural allograft: Case report
(International Journal of Surgery Case Reports, 2024) Ramírez Jaramillo Andrés Felipe; Coronado David Alejandro; Arroyave rivera Sergio Andres; Gómez Mier Luis Carlos; Soto Montoya Camilo
Introduction and importance: Introduction and importance: Bone tumors of the foot constitute 3 % of all bone tumors, within these, the location in the talus constitutes between 8 and 23 % of bone tumors. Within the oncological management of these lesions, preservation surgery has had a great boom in the last 10 years, however, the use of massive structural allograft is not a conventional surgery and there is little literature on its use, which is why we consider important to document clinical cases. Case presentation: we document 2 clinical cases of bone tumor in the talus that were surgically managed with tumor resection plus reconstruction with total and partial talus allograft. Clinical discussion: Bone tumors involving the talus are rare and management techniques have emphasized intralesional resection plus bone graft application. In the literature consulted, no report of reconstructive surgery was found with the use of total and partial structural talus allograft. Conclusions: The use of structural talar allografts, both partial and total, has shown good functional results in short-term follow-up (18 months), so we consider it important to continue long-term follow-up to evaluate the evolution of this surgical technique.
Oncologic reconstruction of the proximal femur in children younger than 9 years using a proximal humerus allograft and a hip prosthesis: Report of two cases and description of the surgical technique
(Journal of Orthopaedic Surgery, 2025-11-26) Ivan Mauricio Rodriguez Macias; Juan Fernando Chaustre; Gabriel Narvaez Rodriguez; Luis Carlos Gomez; Andrea Franco; Camilo Soto Montoya
Introduction: Proximal femoral tumor resection poses a major challenge in orthopaedic oncology, particularly in very young pediatric patients (<9 years), where the need to preserve function and limb length collides with the limited availability of reconstructive options (3D-printed implants, endoprostheses, biological constructs such as vascularized fibular grafts, and allograft-prosthetic composites) or leads to amputation. Objective: To describe in detail the surgical technique for proximal femoral tumor resection and reconstruction using an allograft-prosthetic composite (APC) with a proximal humerus allograft plus a hip prosthesis, documenting its applicability and outcomes regarding function, allograft survival, and oncologic disease status in two pediatric cases treated at a national cancer referral center in Bogot´a, Colombia. Methods: We report two pediatric cases and detail the surgical technique used for proximal femoral reconstruction after tumor resection, based on an APC (proximal humerus allograft + hip prosthesis). Data were collected from medical records with radiological and functional follow-up. Results: In both patients, proximal femoral reconstruction using our technique yielded a stable construct with preservation of limb function (MSTS >72), documented graft incorporation at 3 months, local disease control, and only one recorded complication (contact dermatitis). Conclusion: Proximal femoral reconstruction using an APC with a proximal humerus allograft is a viable and safe surgical option in pediatric patients with Ewing sarcoma. In our experience, the technique was successfully applied in two patients, allowing limb preservation with a favorable course. Thus, it offers a functional and reliable option for limb salvage in selected cases.

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