目的 将二足趾移植于前臂残端再造手指，利用再造手指控制多自由度电子假手治疗前臂部分缺失。方法 患者女性，19岁，右手及腕部在工作中不慎被机器碾碎，于腕上8cm行前臂截肢。取患者左足第二趾移植于前臂残端再造手指。移植术后二月，患者转入康复中心接受进一步康复训练。包括：①调整承重训练；②重量敏感性测试与训练；③手的稳定度测试与训练；④再造手指的控制能力测试与训练。结果 移植足趾存活良好。经过康复训练再造手指功能良好。指令控制测试中电子假手的准确度为100%。再造手指不仅能够准确地控制单自由度电子假手完成手指伸屈，而且能够精确地操纵三自由度电子假手完成假手手指的屈伸，以及腕关节的屈曲、背伸、旋前、旋后，有助于自理日常生活。结论 通过移植足趾于前臂残端，可以使电子假手达到100%的准确度。作者的报告为提高多自由度电子假手的控制准确度减少误动作提供了有用的途径和范例。

It was un satisfactory to use bridging material to repair nerve defect longer than 1.0cm. This experiment used autogenous vein to bridge rabbit tibia nerve with 4.0cm defect. The nerve regeneration did not occur two months after the operation. But when using autogenous vein bridging implanted with Schwann cell homogenate, the electrophysiology, histology, transmission electron microscopy, etc. indicated that the nerve regeneration did occur. This result showed that the length of reparation of nerve defect using non-nerve graft might be increased.

Objective To compare the effect of vascularized and non-vascularized fibula grafting performed for the reconstruction of bone defects after the resection of bone tumors. Methods Vascularized fibula grafting was performed in 18 patients with malignant or aggressive benign bone tumor of the extremities. Non-vascularized fibula grafting was performed in 15 patients with giant cell tumor of the radius. All the 18 patients were followed up with radiography, single photon emission computed tomography (SPECT), colored Doppler's sonography (CDS) examinations and functional observation for 2 to 14 years. Results Vascularized fibula grafts with bone defects of 9 to 26cm showed good blood supply in emission computerized tomography (ECT) and radiography examinations, and bone union was achieved (Table 1). In non-vascularized fibula grafting cases (Table 2), bone union was not achieved. Cconclusions The advantages of vascularized grafting are the feasibility of one-stage reconstruction of various tissues and the growth of grafted fibula. It is necessary to adopt vascularized fibula grafting to reconstruct large bone defect resulting from the resection of extensive bone tumors, such as giant cell tumor (GCT), fibrous dysplasia of bone and malignant bone tumors.

Objective: To treat the loss of part of the forearm with a multi-dimension-freedom electronic artificial hand, which is controlled by a reconstructed finger transplanted from the second toe to the forearm stump. Methods: The female patient was 19 years old, whose right hand and wrist were crushed into pieces by machine at work and her forearm was amputated at the level of 8cm proximal to the wrist. The second toe of her left foot was transplanted to reconstruct the digit onto the stump of her forearm. Two months after the transplantation, the patient was transferred to the rehabilitation center for further rehabilitation training, which consisted of: training for adaptation to weight bearing, testing and training of sensibility to weight. testing and training for stability of the hand, and testing and training for the controlling function of the reconstructed digit. Results: The transplanted toe survived well. After rehabilitation the reconstructed digit functioned well. In testing the performance under control mandate, the accuracy rate of the electronic artificial hand was 100%. Conclusions: A 100% accuracy rate of the electronic artificial hand can be achieved by transplantation of the toe onto the stump of the forearm. It provides a useful pathway and an example for improvement of control accuracy of a multiple-freedom electronic artificial hand and reduction of false action.