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Peer-reviewedCC BYFrontiers in surgery

Case Report: Talonavicular joint replacement in congenital talonavicular coalition with individualized 3D-printed prosthesis.

  • Guimiao Li1
  • Shixin Liu2
  • Chenchen Yuan3
  • Leilei Zhao1
  • Hecheng Zhou1
  • Dehua Liu1
  • Dehang Liu1
  • Gang Ji1
  • Guobin Liu1
  • Zhenhui Sun2
  1. 1Department of Orthopedics, The First Hospital of Hebei Medical University, Shijiazhuang, China.
  2. 2Department of Foot and Ankle Surgery, The First Hospital of Hebei Medical University, Shijiazhuang, Hebei, China.
  3. 3Hebei Medical University, Shijiazhuang, China.
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Abstract

Background

Talonavicular coalition is a rare type of tarsal coalition that may lead to painful flatfoot and progressive functional impairment. Conventional talonavicular arthrodesis provides symptom relief but sacrifices joint motion. Motion-preserving reconstruction strategies remain largely unexplored.Case presentation

We report a case of congenital talonavicular coalition accompanied by flatfoot treated with individualized 3D-printed talonavicular joint replacement (TNJR) in a 12-year-old patient. At 24-month follow-up, the patient achieved complete pain relief (VAS 0) and significant functional improvement (AOFAS 98). Talonavicular joint motion was preserved with 15° inversion/eversion and 15° pronation/supination. Radiographic evaluation demonstrated restoration of the medial longitudinal arch and correction of hindfoot valgus. Progressive improvement was observed in the calcaneal pitch, talonavicular coverage, and hindfoot alignment angles, whereas Meary's angle showed a slight increase.Conclusion

This case demonstrates the feasibility of individualized 3D-printed TNJR as a potential motion-preserving option for selected patients with extensive congenital talonavicular coalition.

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Cite

BibTeXRIS
BibTeX
@article{li2026case,
  title = {{Case Report: Talonavicular joint replacement in congenital talonavicular coalition with individualized 3D-printed prosthesis.}},
  author = {Guimiao Li and Shixin Liu and Chenchen Yuan and Leilei Zhao and Hecheng Zhou and Dehua Liu and Dehang Liu and Gang Ji and Guobin Liu and Zhenhui Sun},
  journal = {Frontiers in surgery},
  year = {2026},
  month = oct,
  doi = {10.3389/fsurg.2026.1865047},
  url = {https://europepmc.org/article/MED/42948032},
  note = {CC BY},
}
RIS
TY  - JOUR
TI  - Case Report: Talonavicular joint replacement in congenital talonavicular coalition with individualized 3D-printed prosthesis.
AU  - Guimiao Li
AU  - Shixin Liu
AU  - Chenchen Yuan
AU  - Leilei Zhao
AU  - Hecheng Zhou
AU  - Dehua Liu
AU  - Dehang Liu
AU  - Gang Ji
AU  - Guobin Liu
AU  - Zhenhui Sun
PY  - 2026
DA  - 2026/10/13
JO  - Frontiers in surgery
DO  - 10.3389/fsurg.2026.1865047
UR  - https://europepmc.org/article/MED/42948032
AB  - Background  Talonavicular coalition is a rare type of tarsal coalition that may lead to painful flatfoot and progressive functional impairment. Conventional talonavicular arthrodesis provides symptom relief but sacrifices joint motion. Motion-preserving reconstruction strategies remain largely unexplored.Case presentation  We report a case of congenital talonavicular coalition accompanied by flatfoot treated with individualized 3D-printed talonavicular joint replacement (TNJR) in a 12-year-old patient. At 24-month follow-up, the patient achieved complete pain relief (VAS 0) and significant functional improvement (AOFAS 98). Talonavicular joint motion was preserved with 15° inversion/eversion and 15° pronation/supination. Radiographic evaluation demonstrated restoration of the medial longitudinal arch and correction of hindfoot valgus. Progressive improvement was observed in the calcaneal pitch, talonavicular coverage, and hindfoot alignment angles, whereas Meary's angle showed a slight increase.Conclusion  This case demonstrates the feasibility of individualized 3D-printed TNJR as a potential motion-preserving option for selected patients with extensive congenital talonavicular coalition.
SN  - 2296-875X
ER  -