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SA Orthopaedic Journal

versión On-line ISSN 2309-8309
versión impresa ISSN 1681-150X

Resumen

MUGLA, Walid et al. Modular prosthetic reconstruction for primary bone tumours of the distal tibia in ten patients. SA orthop. j. [online]. 2022, vol.21, n.2, pp.95-99. ISSN 2309-8309.  http://dx.doi.org/10.17159/2309-8309/2022/v21n2a5.

BACKGROUND: Below-knee amputation (BKA) is the safest treatment for benign aggressive and malignant bone tumours of the distal tibia, yielding good oncological and functional results. However, in selected patients where limb salvage is feasible and amputation unacceptable to the patient, limb salvage using a distal tibial replacement (DTR) can be considered. This study aims to present the oncological and functional results of the use of the latter treatment method in our unit. METHODS: A retrospective folder review was performed for all ten patients who received a modular DTR between 1 January 2005 and 31 January 2019 for a primary bone tumour, either benign aggressive or malignant. Six were female and the mean age was 31 (12-75) years. There were five patients with giant cell tumour of bone, four with osteosarcoma and one with a low-grade chondrosarcoma. The patients with osteosarcoma had neoadjuvant chemotherapy before surgery. Function was assessed by the Musculoskeletal Tumor Society (MSTS) score. RESULTS: Two patients had local recurrence treated with a BKA and one other patient died of metastases three years postoperatively. At a mean follow-up of three years, the remaining eight patients had a mean MSTS score of 83% (67-93%). There were no radiological signs of loosening, and no revision surgeries. CONCLUSION: Endoprosthetic replacement of the distal tibia for primary bone tumours can be a safe treatment option in very selected cases. Level of evidence: Level 4

Palabras clave : distal tibia; endoprosthetic replacement; osteosarcoma; giant cell tumour; limb salvage; amputation.

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