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Updated: May 22, 2025

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3D-printed prosthesis for traumatic trapezium bone defect: a case report.

Shenfeng Jing1, Aiping Yu2, Shuai Dong3

  • 1Department of Orthopaedics, Zhangqiu People's Hospital, Zhangqiu, China.

Archives of Orthopaedic and Trauma Surgery
|March 12, 2025
PubMed
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This case report details a novel two-stage surgery for traumatic trapezium bone defects. A 3D-printed titanium prosthesis restored excellent thumb function after severe wrist injury.

Area of Science:

  • Orthopedic Surgery
  • Biomaterials Engineering
  • Trauma Management

Background:

  • Traumatic trapezium bone defects present significant challenges in wrist reconstruction.
  • Severe wrist injuries often lead to extensive bone loss and functional impairment.
  • Current management strategies may not fully restore complex carpal anatomy and function.

Purpose of the Study:

  • To describe a two-stage surgical technique for managing a traumatic trapezium bone defect.
  • To evaluate the efficacy of a patient-specific 3D-printed titanium prosthesis in restoring thumb function.
  • To present a novel approach for complex comminuted carpal fractures with bone loss.

Main Methods:

  • A two-stage surgical approach was employed for a patient with a traumatic trapezium defect.
Keywords:
3D-printed prosthesisCase reportThumbTraumatic trapezium defectWrist injury

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  • Initial debridement and bone cement filling were followed by prosthesis implantation.
  • A patient-specific 3D-printed titanium prosthesis was designed and implanted in the second stage.
  • Clinical outcomes and thumb functionality were assessed at 24-month follow-up.

    • Main Results:

    • The patient experienced significant clinical improvement and excellent thumb functionality post-surgery.
    • The 3D-printed trapezium prosthesis successfully addressed the complex comminuted fracture with bone defect.
    • No major complications were reported during the 24-month follow-up period.
    • The two-stage approach facilitated successful reconstruction and functional recovery.

    Conclusions:

    • Patient-specific 3D-printed titanium prostheses offer a viable solution for complex trapezium defects.
    • This two-stage surgical method demonstrates promise in managing severe carpal fractures with bone loss.
    • The technique provides a potentially effective alternative for restoring wrist function after high-impact trauma.