The clinical availability of lyophilized collagen implant and microplate in reconstructive surgery on the bony defects of maxillary anterior wall

A Case of Cutaneous Side Reaction of Collagen Implantation / 대한피부과학회지

Injectable Collagen Implan, is composed of purified bovine dermal collagen emulsified in saline and lidocaine(0.3%) base, and has been promoted for correction of soft tissue contour defects. Although collagen is a relatively nontoxic, nonimmunologic and biolegically nonreactive biomaterial, some side reactions have been reported. We report herein a case of cutaneous side reaction to collagen implantation in a 38-year-old female. The patient presented with puritic, irritating, multiple, erythematous nodules on both the temporal and interorbital area, which had been observed since 1 day after collagen(KOKEN ATELOCOLLA-GEN IMPLANT-Japan) implantation. Histopathologic findings showed dense infiltration of acute and chronic inflammatory cells in the dermis, especially the perivascular and periadnexal area.

Autologous fat injection and collagen impantation for the correction of facial atroply / 대한피부과학회지

We present our experience with autologous fat injection and collager implantation in the treatment of facial atrophy. The surgical teclinigues are described for injecting the colagen into the nasolabial fold and collecting fat from the lower abdomen and then injecting the fat into the depressed site on the face. There were no serious complications without slowly progressive, volume reduction. We think that, these techniques could have a plae in the treatment of problems relatcd to facial depression. However, a longer follow-ups and more clinical experiences will be needed in order to reach some definite conclusions.