Hyaluronic acid induced bone resorption

In order to study HA induced bone resorption, a prospective, single-shot HA injection clinical trial was conducted to compare the computed tomographic (CT) scans before and at 6~10 months after the injection. On the other hand, a retrospective cohort study compared the HA-injection cohort with one blank control and one autologous fat injection groups. CT raw data and processed data of the prospective study and the postoperative study were presented.