Feasibility of non-radical resection combined with internal fixation for adolescents with lower limb fibrous dysplasia: a single-center retrospective study with a small sample size.
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BACKGROUND: The management of osteofibrous dysplasia (OFD) is controversial, with limited reports on combining non-radical resection with internal fixation. This study evaluates optimal treatments for patients with OFD aged < 15 years, with attention to the limitations of the small sample size. MATERIALS AND METHODS: This retrospective analysis included 28 patients (30 extremity) with severe pain, pathological fractures, angular deformities, or extensive cortical bone involvement. On the basis of the surgical approach, patients were divided into four groups: group 1, curettage, allograft, and plate fixation for six patients (six extremity); group 2, elastic stable intramedullary nailing fixation for six patients (six extremity); group 3, Fassier-Duval telescopic system fixation for eight patients (nine extremity); and group 4, interlocking intramedullary nail for eight patients (nine extremity). RESULTS: All patients achieved bony union and pain alleviation with no recurrence of deformities. The refracture rate during the follow-up was zero cases (0%; group 1) versus one (16.7%; group 2) versus zero (0%; group 3) versus zero cases (0% group 4) (p > 0.05). Instances of internal fixation loosening were zero cases (0%; group 1) versus zero (0%; group 2) versus five (55.6%; group 3) versus zero cases (0%; group 4) (p < 0.05). The musculoskeletal tumor society (MSTS) scores of the four groups were 27.5 (group 1) versus 27.7 (group 2) versus 26.3 (group 3) versus 28.7 (group 4) (p < 0.05). CONCLUSIONS: Selecting different treatment strategies for patients of various ages and locations with OFD is vital. Surgical intervention for patients with persistent pain, pathological fractures, extensive cortical bone involvement, or significant tibial deformities can significantly improve their quality of life. The encouraging MSTS scores also support this conclusion. However, given the study's single-center design and small sample size, further research with larger, multicenter studies is necessary. LEVEL OF EVIDENCE: Level IV.