Analysis of the Postoperative Absorption Process of Unsintered Hydroxyapatite Particles/Poly L-Lactide Composite Device (OSTEOTRANS MX®) for Facial Bone Fractures in 13 Cases

Sayo Tatsuta, Minoru Hayashi, Ryohei Tokunaka, Hideyuki Muramatsu and Koichi Kadomatsu

Department of Plastic and Reconstructive and Aesthetic Surgery, Japanese Red Cross Maebashi Hospital, 389-1,Asakuramachi, Maebashi, Gunma, 371-0811, Japan
Department of Plastic and Reconstructive and Aesthetic Surgery, Minamiaoyama Tokunaka Clinic, Japan
Department of Plastic and Reconstructive and Aesthetic Surgery, Wound and Scar Clinic in Toyosu, Japan
Department of Plastic and Reconstructive Surgery, Fujigaoka Hospital Showa University School of Medicine, 1-30, Fujigaoka, Aobaku, Yokohamashi, Kanagawa, 227-8501, Japan

^*Correspondance to: Sayo Tatsuta 

 PDF  Full Text DOI: 10.25107/2474-1647.2185

Abstract

Absorptive devices are often used to treat facial bone fractures in Japan. Only a few reports have investigated whether the plate used was absorbed. In the present study, we used OSTEOTRANS MX® for 13 cases of facial bone fractures at our hospital and studied the progress of the decomposition in the plate body and screw, which required removal due to postoperative infections. OSTEOTRANS MX® was decomposed in the body. The molecular weight of poly-L-lactic acid was reduced and it was finally absorbed; however, unsintered hydroxyapatite was not completely absorbed. In patients in whom the OSTEOTRANS MX® was used, absorption may be completed between 5 to 6 years. However, in certain cases, it takes more than 5 to 6 years. It is necessary to conduct follow-ups until OSTEOTRANS MX® is absorbed and replaced with bone.

Keywords

Facial bones; OSTEOTRANS MX®; u-HA; PLLA; SEM; EDX

Cite the article

Tatsuta S, Hayashi M, Tokunaka R, Muramatsu H, Kadomatsu K. Analysis of the Postoperative Absorption Process of Unsintered Hydroxyapatite Particles/Poly L-Lactide Composite Device (OSTEOTRANS MX�) for Facial Bone Fractures in 13 Cases. Clin Surg. 2018; 3: 2185.