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Squamous Cell Carcinoma Arising from Chronic Osteomyelitis in the Extremities: Treatment Approach and Oncological
Mayte Bryce-Alberti1, M R Gonzalez1, Andres Quevedo-Ramirez2
1Facultad de Medicina Universidad Peruana Cayetano Heredia, Lima, Peru.
Aims:
In chronic osteomyelitis-derived squamous cell carcinoma, what are the demographic and clinical variables, risk factors associated with worse outcomes, and results of treatment modalities used?
Methods:
A systematic review was performed using PubMed and EMBASE. Articles were evaluated for inclusion and exclusion criteria, and for quality analysis. PRISMA guidelines were applied. Demographic and clinical data and therapeutic approaches were presented narratively and in descriptive statistics registered at PROSPERO.
Results:
Most patients were male (40/49), trauma was the most common etiology (27/36), and about half of all SCC were in the tibia (25/48). Amputation was the main definitive treatment (42/47). Adjuvant treatments were not analyzed. Well-differentiated SCC accounted for 58.3% (21/36) of all tumors. Bone invasion was described in 82.8% (24/29); recurrence, in 7.7% (3/39); and metastasis, in 7.7% (3/39). Recurrence and metastasis occurred more frequently when bone invasion was present (p = 0.578 and p = 0.646, respectively). SCC with lymph node involvement showed a higher tendency to metastasize (p = 0.377). Compared with limb salvage, amputation was associated with a tendency for less recurrence (p = 0.312) and longer survival (p = 0.219).
Conclusions:
COM-derived SCC mostly occurs after trauma and is usually located in the tibia. Bone invasion is common, and patients predominantly undergo amputation. This treatment is associated with a trend toward higher survival, compared to limb salvage.
