Where is incompetence and dilation limited in SSV reflux cases?

In cases of short saphenous vein (SSV) reflux, incompetence and dilation are commonly observed in the proximal third of the SSV. This is due to the anatomical and hemodynamic factors that influence venous flow and valve function. The proximal section of the SSV is where it connects to the popliteal vein, making it a critical area for venous return. When valves in this area become incompetent, it leads to reflux, which in turn causes dilation of the vein.

Understanding this pattern is essential for diagnosing and managing venous insufficiency, as it focuses intervention efforts on the areas most affected by incompetency. Identifying the specific site of reflux is crucial for treatment strategies, such as endovenous laser therapy or other forms of ablation that target the refluxing sections of the vein.