Individualized design and clinical application of metacarpophalangeal joint prosthesis: a one-case report

doi:10.3969/j.issn.2095-4344.1200

Abstract

Abstract:

BACKGROUND: Clinically, most of the metacarpophalangeal joints are directly amputated after severe injury. This study is mainly aimed at the treatment of severe destruction of metacarpophalangeal joint (individualized prosthesis arthroplasty), in order to restore some functions of hand.

OBJECTIVE: Three-dimensional-printing technology and mechanical processing were used to produce prosthesis of metacarpophalangeal joint with medical-grade polyether-ether-ketone material, then to discuss their individualized design, manufacture and clinical application.

METHODS: (1) One man with sprained right hand by machine, at the age of 64 years. Both hands were scanned with spiral CT before surgery, then the prosthesis of right metacarpophalangeal joint was designed with computer aid and three-dimensional reconstructed. This study was performed in strict accordance with the Declaration of Helsinki formulated by the World Medical Association. This study was approved by the Ethics Committee of the Second Hospital of Jilin University on 16 August 2017 (approval No. (2018) (133)). (2) The remained bone and the prosthesis individualized designed for metacarpophalangeal joint of right hand were three-dimensional-printed, then mechanical processed, produced the prosthesis of individualized design for metacarpophalangeal joint. (3) Preoperative simulation was conducted using the printed models, and then the metacarpophalangeal joint prosthesis was implanted.

RESULTS AND CONCLUSION: (1) The prosthesis was designed and produced based on the CT scanning data. It was anastomosed with the mother bone perfectly. Surgery reconstruct finished the recovery of anatomical morphology of the right hand and the flap was transplanted to cover the prosthesis. (2) In summary, the design and application of individualized metacarpophalangeal joint prosthesis is realized by three-dimensional printing combined with machining technology, which provides a method for repairing metacarpophalangeal joint. The clinical application of the technique may become a new trend of bone repair and arthroplasty.

Key words: metacarpophalangeal joint, prosthesis, CT data, three-dimensional reconstruction, three-dimensional printing, machining

CLC Number:

R445

Zhong Hua, Liu Jun, Cai Guoxiang, Duan Shaoyin. Individualized design and clinical application of metacarpophalangeal joint prosthesis: a one-case report[J]. Chinese Journal of Tissue Engineering Research, 2019, 23(20): 3164-3169.

Figures/Tables 3

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