Chinese Journal of Tissue Engineering Research ›› 2017, Vol. 21 ›› Issue (27): 4360-4365.doi: 10.3969/j.issn.2095-4344.2017.27.017

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A patient with pseudoachondroplasia undergoing bilateral total knee arthroplasties using three-dimensional printing technology  

Xu Zhi-qing, Zhang Yi-yuan, Wang Wu-lian   

  1. Fuzhou Second Hospital Affiliated to Xiamen University, Fuzhou 350001, Fujian Province, China
  • Online:2017-09-28 Published:2017-10-24
  • Contact: Zhang Yi-yuan, Chief physician, Fuzhou Second Hospital Affiliated to Xiamen University, Fuzhou 350001, Fujian Province, China
  • About author:Xu Zhi-qing, Master, Physician, Fuzhou Second Hospital Affiliated to Xiamen University ,Fuzhou 350001, Fujian Province, China

Abstract:

BACKGROUND: Pseudoachondroplasia is rare heredigary osteopathy, usually accompanied by deformity of the lower limbs, short fingers, and ligamentous laxity, so it is a difficulty in total knee arthroplasty.

OBJECTIVE: To evaluate the curative effectiveness of bilateral total knee arthroplasties for a patient with pseudoachondroplasia using three-dimensional (3D) printing technology.
METHODS: A retrospective study was done in a case of pseudoachondroplasia undergoing bilateral total knee arthroplasties using 3D printing technology. X-ray examination was conducted to observe the prosthesis location after arthroplasties, and the Knee Society Score outcome measures were used to evaluate the functional outcome.
RESULTS AND CONCLUSION: (1) After arthroplasties, X-rays showed good line of force of the lower limbs and prosthesis location, and 1 year later, showed no radiolucent lines in tibia. (2) The right Knee Society Score improved to 94 points, the functional scoring improved to 90 points, and the postoperative flexion was 95°; the left Knee Society Score improved to 93 points, the functional scoring improved to 90 points, and the postoperative flexion was 90°. All patients were very satisfied with the treatment outcomes. (3) These results indicate that the individualized treatment scheme designed using 3D printing technology can reduce the surgical difficulty and trauma with high accuracy, and promote the functional recovery of the knee. Additionally, it obtains good clinical efficacy and patient’s satisfaction in orthopaedic surgeries. 

中国组织工程研究杂志出版内容重点:人工关节;骨植入物;脊柱骨折;内固定;数字化骨科;组织工程

Key words: Knee, Osteoarthritis, Heredity, Computers

CLC Number: