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非血管化髂骨移植同期种植实验
AIM:To investigate the osseointegration process of titanium implant and non vascularized iliac bone grafts.METHODS:12 mongrel were divided into 4 groups randomly.Bone grafts were resected from iliac crest and then transplanted to the other side.Animals were skilled in different time after surgery,X ray pictures were taken,then histological observation were done.RESULTS:At 3rd week,bone grafts dissolved,resorbed or necrosis partly;At 6th week,new bone began to regenerated;At 9th week,the amount of new bone increased;At 12nd week,bone interface around implant formed,without soft tissue interrupt.CONCLUSION:Osseointegration can formed between non vascularized iliac bone grafts and titanium implant.
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可调式中空人工椎体置换缓解脊柱转移性肿瘤疼痛及恢复脊髓功能障碍的观察
Objective To observe the results of the metastasis of spinal vertebra treated by replacedment with the adjustable hollow artificial vertebral body.Method An adjustable hollow artificial vertebral body made from medial used titanium.12 patients with the metastasis of vertebral body were treated by this technique.The relief of the pain of function of spinal cord were moinitored.The stability of the operated segments was observed.Results The patients were followed up from 6 to 34 months.The neurological functions were improved markedly,esp.for the pain relieving.The implants were stalbe and the reconstruction of the segment highness was observed on the X ray films.Conclusion The height of anterior column and the stability of the operated segments can be reconstructed by implanting the adjustable hollow artificial vertebral body.This technique may be an alternative method for the management of the metastasis in spinal vertebral body.
