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to compare the outcomes of mechanochemical ablation (MOCA) versus saphenopopliteal junction ligation and stripping (OS) for symptomatic small saphenous vein (SSV) insufficiency. This is a retrospective study including symptomatic SSV patients treated with MOCA using the ClariVein catheter (Merit Medical, South Jordan, Utah, USA) or OS from 2015 to 2019. A total of 60 limbs (73.3% women, mean age 54.7 ± 14.4 years) were treated with MOCA and 58 limbs (63.8% women, mean age 54 ± 11.6 years) with OS. At 18 months follow-up, recurrence rates were 7.5% (4/53) fo