supraperiosteal

supra- +‎ periosteal

supraperiosteal (not comparable)

1. (anatomy) Above the periosteum
   • 2015 May 11, Julius Few et al., “A Multicenter, Single-Blind Randomized, Controlled Study of a Volumizing Hyaluronic Acid Filler for Midface Volume Deficit: Patient-Reported Outcomes at 2 Years”, in Aesthetic Surgery Journal‎, volume 35, DOI:10.1093/asj/sjv050:

     However, it should be noted that patient-rated improvement on the GAIS at 6 months was consistent with blinded investigator ratings at this time point (with 82.2% of investigators and 92.8% of patients rating midface volume as improved or much improved at 6 months), as previously reported. 20 Another limitation was the lack of blunt cannula use, as the researchers employed a variety of injection techniques using needles to inject into the subcutaneous and supraperiosteal planes.