Chinese Journal of Tissue Engineering Research ›› 2019, Vol. 23 ›› Issue (36): 5772-5776.doi: 10.3969/j.issn.2095-4344.1895

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Three-dimensional printing technique-assisted total hip arthroplasty for developmental dysplasia of the hip in adults

Chen Yong, Zhang Bin   

  1. Department of Orthopedics, Central Hospital Affiliated to Shenyang Medical College, Shenyang 110024, Liaoning Province, China
  • Online:2019-12-28 Published:2019-12-28
  • Contact: Zhang Bin, Professor, Chief physician, Department of Orthopedics, Central Hospital Affiliated to Shenyang Medical College, Shenyang 110024, Liaoning Province, China
  • About author:Chen Yong, MD, Attending physician, Department of Orthopedics, Central Hospital Affiliated to Shenyang Medical College, Shenyang 110024, Liaoning Province, China
  • Supported by:

    the Project of Liaoning Science and Technology Bureau, No. 20170540547 (to ZB)

Abstract:

BACKGROUND: Total hip arthroplasty is the ultimate treatment for adult developmental dysplasia of the hip in the late stage of disease. However, due to the complicated anatomical variation of developmental dysplasia of the hip patients, the traditional total hip arthroplasty faces great challenges.  

OBJECTIVE: To explore the effectiveness and safety of three-dimensional (3D) printing technology-assisted total hip arthroplasty in the treatment of developmental dysplasia of the hip.
METHODS: Twenty patients with developmental dysplasia of the hip, who underwent primary total hip arthroplasty in Department of Orthopedics, Central Hospital Affiliated to Shenyang Medical College from January 2016 to June 2018, were randomly divided into two groups. The 10 patients in the 3D printing group underwent total hip arthroplasty assisted by 3D printing technology, and 10 patients in the traditional operation group underwent traditional total hip arthroplasty. The operation time, blood loss, occurrence of complication, visual analog scale score and Harris hip joint function score before and 6 months after operation were recorded.
RESULTS AND CONCLUSION: (1) Compared with the traditional operation group, the operation time and blood loss in the 3D printing group were significantly shortened, with significant differences (P=0.000). (2) Visual analog scale score and Harris hip joint function score were significantly higher at 6 months after operation than that before operation in both groups (P=0.000). (3) There was no significant difference in visual analog scale score and Harris hip joint function score between the two groups 6 months after operation (P > 0.05). (4) No complication occurred in both groups. (5) These results indicate that both 3D printing technology-assisted total hip arthroplasty and traditional total hip arthroplasty can achieve good clinical effects in the treatment of developmental dysplasia of the hip, but 3D printing technology combined with total hip arthroplasty has shorter operation time and less blood loss.

Key words: 3D printing technology, total hip arthroplasty, developmental dysplasia of the hip, artificial joint, hip prosthesis

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