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Scapular Osteosarcoma Treated by Scapulectomy with or Without Scapular Allograft: A Retrospective Case Series.
Indian Journal of Orthopaedics 2023 March
BACKGROUND: Osteosarcoma of the scapula is extremely rare. Hence, there is no consensus regarding its optimal management. In this study, we report the demographics, characteristic features, and outcomes of scapulectomy with or without scapular allograft reconstruction in a series of patients with primary scapular osteosarcoma.
MATERIALS AND METHODS: Twelve patients with primary scapular osteosarcoma who were treated by scapulectomy with or without scapular allograft reconstruction (five and seven patients, respectively) were included. The allograft was fixed in place using a dacron tape without a plate or screw. The function of the shoulder was evaluated using the Musculoskeletal Tumor Society (MSTS) score for the upper extremity and Toronto Extremity Salvage Score (TESS).
RESULTS: The study population included seven (58.3%) males and five (41.7%) females with a mean age of 30 ± 8.2 years. The histologic type of the tumor was osteoblastic in the majority of patients ( n = 8, 66.7%). At an average follow-up of 6.5 ± 2.3 years, only one local recurrence (8.3%) occurred in our patients that coincided with lung metastasis. The mean MSTS score was 78.7 ± 3.8% and 66.2 ± 4% in patients with and without scapular allograft, respectively ( P = 0.006). The mean TESS was 78.6 ± 5.6 and 68.4 ± 2.4 in patients with and without scapular allograft, respectively ( P = 0.005). The overall 5-year survival of the patients was 85.7%.
CONCLUSION: Osteosarcoma of scapula more frequently occurs in the fourth decade of life, mainly presented with a sclerotic radiologic appearance. Patients with scapular allograft impaction after scapulectomy have better functional outcomes compared to those without boney reconstruction.
MATERIALS AND METHODS: Twelve patients with primary scapular osteosarcoma who were treated by scapulectomy with or without scapular allograft reconstruction (five and seven patients, respectively) were included. The allograft was fixed in place using a dacron tape without a plate or screw. The function of the shoulder was evaluated using the Musculoskeletal Tumor Society (MSTS) score for the upper extremity and Toronto Extremity Salvage Score (TESS).
RESULTS: The study population included seven (58.3%) males and five (41.7%) females with a mean age of 30 ± 8.2 years. The histologic type of the tumor was osteoblastic in the majority of patients ( n = 8, 66.7%). At an average follow-up of 6.5 ± 2.3 years, only one local recurrence (8.3%) occurred in our patients that coincided with lung metastasis. The mean MSTS score was 78.7 ± 3.8% and 66.2 ± 4% in patients with and without scapular allograft, respectively ( P = 0.006). The mean TESS was 78.6 ± 5.6 and 68.4 ± 2.4 in patients with and without scapular allograft, respectively ( P = 0.005). The overall 5-year survival of the patients was 85.7%.
CONCLUSION: Osteosarcoma of scapula more frequently occurs in the fourth decade of life, mainly presented with a sclerotic radiologic appearance. Patients with scapular allograft impaction after scapulectomy have better functional outcomes compared to those without boney reconstruction.
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