Bone Diseases Clinical Trial
Official title:
3D-Printed Personalized Metal Implant in Surgical Treatment of Ankle Bone Defects
This study aims to use 3D-printed personalized metal implants for bone defect surgeries in order to reduce pain of the patients.
Bone defects are common in ankle disease, and the conventional treatment includes autologous
or allogeneic bone grafts. However, autologous bone graft may cause complications and its
source is rather limited; allogeneic bone graft may cause disease transmission and the
mechanical strength of the graft is low after processing.
The 3D printing technology has provided a new way of solving this problem. It has the
following technical advantages: wide range of graft sources, high mechanical strength, and
can be prepared in advance according to various shapes.
Preparation procedure: first, establish the individualized ankle model according to the
patient's ankle CT scan data and then prepare the implant model; second, conduct surgery
rehearsal and place the implant model in the ankle model for observation; third, after
confirmation, use titanium alloy in the 3D printing machine to prepare the individualized
metal implant, which is in line with the Chinese National Standard "Wrought titanium and
titanium alloy for surgical implants" (GB/T 13810-2007); fourth, implant the individualized
metal implant into the bone defect area after sterilization.
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