Application of the free vascularized lateral upper arm flap in intraoral reconstruction following ablative tumour surgery / 中华口腔医学杂志

<p><b>OBJECTIVE</b>To evaluate the application of the lateral arm free flap (LAFF) in the reconstruction for intraoral defects.</p><p><b>METHODS</b>Intraoral reconstruction was performed using the LAFF for 10 patients with oral squamous cell carcinoma of the tongue (n = 3), cheek (n = 4), gingiva (n = 1) and oropharynx (n = 2). There were 8 men and 2 women (mean age, 52 years).</p><p><b>RESULTS</b>Nine LAFF healed uneventfully. One flap was lost on the second postoperative day due to venous insufficiency. The donor defect was closed primarily In all patients. There were no significant complications at the donor site.</p><p><b>CONCLUSIONS</b>Because of the thin and pliable nature, the lateral upper arm flap can be recommended as a choice for repair of moderate-sized defects of the oral maxillofacial area.</p>

Scanning electron microscopic study of titanium-hydroxyapatite, the functionally graded-material implanted in rabbits / 中华整形外科杂志

<p><b>OBJECTIVE</b>The purpose of this study was to observe the tissue tolerance of Ti-HA functionally graded-material (FGM) and the form of the material-bone interface.</p><p><b>METHODS</b>The sintered Ti -HA FGM, pure HA and pure Ti were respectively implanted into the parietal bone of rabbits. The specimens were observed by SEM at 2, 4, 8 postoperative weeks.</p><p><b>RESULTS</b>In the early stage, the new bone surrounding the Ti -HA FGM formed earlier with larger amount and better maturity than the pure Ti. The condition was similar to the pure HA. Two months after the operation, direct bonding of material-bone interface was formed between the Ti -HA FGM and the new bone as an integral body. However, there was a little space left between the new bone and the pure Ti.</p><p><b>CONCLUSIONS</b>The Ti -HA FGM has good tissue tolerance. Its early integration with bone is similar to pure HA and better than pure Ti.</p>