Hello @melmes78, Welcome to Connect, an online community where patients and caregivers share their experiences, find support and exchange information with others. I've had some similar dents near the shin on the inside of my legs. My primary care doc thought they may be pitting edema at the time. A few years later I was diagnosed with lymphedema and now wear compression socks as a treatment. I think only a doctor can really give you an answer. Here is some information that you may find helpful until other members can share their experience.

Quadriceps Muscle Contusion: https://www.physio-pedia.com/Quadriceps_Muscle_Contusion

You mentioned it was really painful at the time the trauma to the leg happened and you could barely walk. Do think it still is affecting the way you walk?